Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Ministry of Natural Resources and Environment on the promulgation of National Technical Regulations on Environment

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Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Ministry of Natural Resources and Environment on the promulgation of National Technical Regulations on Environment
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Official number:32/2013/TT-BTNMTSigner:Bui Cach Tuyen
Type:CircularExpiry date:Updating
Issuing date:25/10/2013Effect status:
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THE MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT

Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Ministry of Natural Resources and Environment on the promulgation of National Technical Regulations on Environment

Pursuant to the Law on Technical regulations and standards dated June 29, 2006;

Pursuant to the Government s Decree No. 127/2007/NĐ-CP dated August 01, 2007 on guidelines for the Law on Technical regulations and standards;

Pursuant to the Government s Decree No. 21/2013/NĐ-CP dated March 04, 2013 defining the functions, tasks, entitlements and organizational structure of the Ministry of Natural Resources and Environment;

At the request of the Director of Vietnam Environment Administration, the Heads of Science & Technology Department and Legal Department;

The Minister of Natural Resources and Environment promulgates a Circular on promulgation of National Technical Regulations on environments:

Article 1.04 National Technical Regulations on environment are promulgated together with this Circular:

1. QCVN 05:2013/BTNMT - National Technical Regulation on Ambient Air Quality;

2. QCVN 50:2013/BTNMT – National Technical Regulation on Hazardous Thresholds for Sludge from Water Treatment Process;

3. QCVN 51:2013/BTNMT - National Technical Regulation on Emission for Steel Industry;

4. QCVN 52:2013/BTNMT - National Technical Regulation on Wastewater of Steel Industry.

Article 2.This Circular takes effect on January 01, 2014.

Article 3.Director of Vietnam Environment Administration, heads of units affiliated to the Ministry of Natural Resources and Environment, Directors of Services of Natural Resources and Environment, and relevant entities are responsible for the implementation of this Circular./.

For the Minister

The Deputy Minister

Bui Cach Tuyen

 

 

QCVN 05:2013/BTNMT

NATIONAL TECHNICAL REGULATION ON AMBIENT AIR QUALITY

Foreword

QCVN 05:2013/BTNMT is compiled by the drafting board of Vietnam Environment Administration, submitted by Science & Technology Department and Legal Department, and promulgated together with the Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Minister of Natural Resources and Environment.

 

NATIONAL TECHNICAL REGULATION ON AMBIENT AIR QUALITY

1. GENERAL PROVISIONS

1.1. Scope of application

1.1.1. This Regulation deals with limitations on values of basic factors including sulfur dioxide (SO2), carbon monoxide (CO), dioxide nitrogen (NO2), ozone (O3), total suspended particles (TSP), 10 PM10, PM2,5particles, and lead (Pb) in ambient air.

1.1.2. This Regulation applies to supervision and assessment of ambient air quality.

1.1.3. This Regulation does not apply to air within manufacturing facilities and indoor air.

1.2. Interpretation of terms

In this Regulation, the terms below are construed as follows:

1.2.1. Total suspended particles means total amount of particles of which the aerodynamic diameter is ≤ 100mm.

1.2.2. Total PM10means total amount of suspended particulate matters of which the aerodynamic diameter is ≤ 10mm.

1.2.3. Total PM2,5means total amount of suspended particulate matters of which the aerodynamic diameter is ≤ 2.5mm.

1.2.4. Average value per hour means the average value of the values measured over an hour.

1.2.5. Average value per hour means the average value of the values measured over an hour.

1.2.6. Average value per 24 hours means the average value of the values measured over 24 consecutive hours.

1.2.7. Average value per year means the average value of the values measured over a year.

2. Technical regulations

Limitations on basic factors of ambient air are provided in Table 1

Table 1: Limitations on basic factors of ambient air

Unit: microgram per cube meter (mg/m3)

No.

Factor

Average value
per hour

Average value
per 8 hours

Average value
per 24 hours

Average value
per year

1

SO2

350

-

125

50

2

CO

30.000

10.000

-

-

3

NO2

200

-

100

40

4

O3

200

120

-

-

5

TSP

300

-

200

100

6

PM10

-

-

150

50

7

PM2,5

-

-

50

25

8

Lead

-

-

1.5

0.5

Notes: “-“ means not regulated

3. DETERMINATION METHODS

3.1.Methods for analysis and determination of air quality factors are provided in the documents below:

- TCVN 5978:1995 (ISO 4221:1980). Air quality -- Determination of mass concentration of sulphur dioxide in ambient air -- Thorin spectrophotometric method.

- TCVN 5971:1995 (ISO 6767:1990). Ambient air — Determination of the mass concentration of sulfur dioxide — Tetrachloromercurate (TCM)/pararosaniline method.

- TCVN 7726:2007 (ISO 10498:2004). Ambient air -- Determination of sulfur dioxide -- Ultraviolet fluorescence method.

- TCVN 5972:1995 (ISO 8186:1989). Ambient air -- Determination of the mass concentration of carbon monoxide -- Gas chromatographic method.

- TCVN 7725:2007 (ISO 4224:2000). Ambient air -- Determination of carbon monoxide -- Non-dispersive infrared spectrometric method.

- TCVN 5067:1995. Air quality. Weight method for determination of suspended dusts content.

- TCVN 9469:2012. Air quality - Ambient air - Measurement of the mass of particulate matter on a filter medium - Beta-ray absorption method

- AS/NZS 3580.9.6:2003. Methods for sampling and analysis of ambient air - Determination of suspended particulate matter - PM10high volume sampler with size-selective inlet - Gravimetric method.

- AS/NZS 3580.9.7:2009. Methods for sampling and analysis of ambient air - Determination of suspended particulate matter - Dichotomous sampler (PM10, coarse PM and PM2,5) - Gravimetric method.

- TCVN 6137:2009 (ISO 6768:1998). Ambient air — Determination of mass concentration of nitrogen dioxide — Modified Griess-Saltzman method.

- TCVN 7171:2002 (ISO 13964:1998). Air quality -- Determination of ozone in ambient air -- Ultraviolet photometric method.

- TCVN 6157:1996 (ISO 10313:1993). Ambient air -- Determination of the mass concentration of ozone -- Chemiluminescence method

- TCVN 6152:1996 (ISO 9855:1993). Ambient air -- Determination of the particulate lead content of aerosols collected on filters -- Atomic absorption spectrometric method.

3.2.The methods provided in National Standards and International Standards with equivalent or higher accuracies than those mentioned in 3.1 are accepted.

4. IMPLEMENTATION

4.1.This Regulation replaces QCVN 05:2009/BTNMT – National Technical Regulation on Ambient air quality promulgated together with Circular No. 16/2009/TT-BTNMT dated October 17, 2009 of the Minister of Natural Resources and Environment.

4.2.Environment authorities are responsible for providing guidance and inspect the implementation of this Regulation.

4.3.Where the analysis methods provided in this Regulation are revised, the newest ones shall apply.

 

QCVN 50:2013/BTNMT

NATIONAL TECHNICAL REGULATION ON HAZARDOUS THRESHOLDS FOR SLUDGE FROM WATER TREATMENT PROCESS

Foreword

QCVN 50:2013/BTNMT is based on QCVN 07:2009/BTNMT on hazardous thresholds for wastes, submitted by Vietnam Environment Administration, Science & Technology Department and Legal Department, and promulgated together with the Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Minister of Natural Resources and Environment

 

NATIONAL TECHNICAL REGULATION ON HAZARDOUS THRESHOLDS FOR SLUDGE FROM WATER TREATMENT PROCESS

1. GENERAL PROVISIONS

1.1. Scope

This Regulation deals with hazardous thresholds of factors (except for radioactive factors) in sludge produced during sewage treatment process and supplied water treatment process (hereinafter referred to as water treatment process), which is the basis for sludge classification and management.

This Regulation applies to sludge produced during water treatment processes that are enumerated in Circular No. 12/2011/TT-BTNMT dated April 14, 2011 of the Ministry of Natural Resources and Environment on hazardous waste management.

1.2. Regulated entities

This Regulation applies to every entity engaged in the activities related to sludge produced during water treatment process.

1.3. Interpretation of terms

In this Regulation, the terms below are construed as follows:

1.3.1. Sludge produced during water treatment process means a mixture of solids that are separated, deposited, and discharged during water treatment process.

1.3.2. Absolute level means the level of sludge factors expressed in parts per minute (ppm).

1.3.3. Absolute threshold (Htc) means the hazardous threshold of sludge according to absolute level.

1.3.3. Basic absolute level (H) means value used for calculating absolute threshold (Htc) according to (1).

1.3.5. Eluate/leaching concentration means the concentration (mg/l) of the factor in the solution after analyzing the sludge samples by leaching Ctc­means the hazardous threshold of factors in sludge according to leaching concentration.

1.3.6. CAS means the code of chemicals according to (Chemical Abstracts Services).

2. Technical regulations

2.1. General principles

Whether a stream of sludge is classified as hazardous waste depends on the hazardous thresholds of its factors. If the sludge sample analysis result shows that at least 01 of the factors exceeds the hazardous thresholds at any sampling time, the stream of sludge is classified as hazardous waste.

2.2. Classification of sludge

Sludge produced during water treatment process is classified as hazardous waste in one of the following cases:

a) pH ≥ 12.5 or pH ≤ 2.0;

b) The value of at least 01 factor in Table 1 exceeds both Htcand Ctc.

2.3. Absolute threshold Htc

Absolute threshold (Htc, ppm) is calculated as follows:

(1)

Where:

+ H (ppm): the absolute level provided for in Table 1;

+ T: the ratio of dry solid in the sludge sample to total weight of the sludge sample.

2.4. Hazardous threshold according to leaching concentration Ctc

Hazardous thresholds according to leaching concentrations of factors in sludge are provided in Table 1

Table 1. Absolute level (H) and hazardous thresholds according to leaching concentration of factors in sludge

No.

Factor

CAS number

Chemical formula

Basic absolute level H (ppm)

Hazardous threshold according to leaching concentration Ctc(mg/l)

1

Arsenic

-

As

40

2

2

Barium

-

Ba

2,000

100

3

Silver

-

Ag

100

5

4

Cadmium

-

Cd

10

0.5

5

Lead

-

Pb

300

15

6

Cobalt

-

Co

1,600

80

7

Zinc

-

Zn

5,000

250

8

Nickel

-

Ni

1,400

70

9

Selenium

-

Se

20

1

10

Mercury

-

Hg

4

0.2

11

Chromium VI

-

Cr6+

100

5

12

Total cyanide

-

CN-

590

-

13

Total oil

-

-

1,000

50

14

Phenol

108-95-2

C6H5OH

20,000

1,000

15

Benzene

71-43-2

C6H6

10

0.5

16

Chlorobenzene

108-90-7

C6H5Cl

1,400

70

17

Toluene

108-88-3

C6H5CH3

20,000

1,000

18

Naphthalene

91-20-3

C10H8

1,000

-

19

Chlordane

57-74-9

C10H6Cl8

0.6

0.03

20

2,4-Diclophenoxy acetic acid (2,4-D)

94-75-7

C6H3Cl2OCH2COOH

100

5

21

Lindane

58-89-9

C6H6Cl6

6

0,3

22

Methoxychlor

72-43-5

C16H15CI3O

200

10

23

Endrin

72-20-8

C12H8Cl6O

0.4

0.02

24

Heptachlor

76-44-8

10H5Cl7

0.2

0.01

25

Methyl parathion

298-00-0

(CH3O)2PSO-C6H4NO2

20

1

26

Parathion

56-38-2

C10H14NO5PS

400

20

- The factors No. 1 thru 15 shall apply to all kinds of sludge from water treatment processes.

- The factors No. 1 thru 18 shall apply to sludge from water treatment processes or special manufacturing processes listed in Table 2.

- All factors in Table 1 (No. 1 thru 26) shall apply to sludge from water treatment processes of the manufacturing, processing, supply of pesticides, timber preservation agents, and other organic biocides (No. 10 in Table 2).

Table 2. Sludge from special manufacturing process

No.

Sludge from water treatment process of special manufacturing process

Hazardous waste code (according to Circular No. 12/2011/TT-BTNMT dated April 14, 2011)

1

Sludge from water treatment process of oil refining

01 04 07

2

Sludge from water treatment process of oil recycling and oil exploitation

12 07 05

3

Sludge from water treatment process of manufacturing, supply and use of synthetic rubber and artificial threads.

03 02 08

4

Sludge from water treatment process of medicine manufacturing and supply process

03 05 08

5

Sludge from water treatment process of manufacturing, supply, and use of fat, soap, detergent, antiseptic, and cosmetics

03 06 08

6

Sludge from water treatment process of manufacturing, supply, and use of pure chemicals and other chemical products

03 07 08

7

Sludge from water treatment process of manufacturing of glass and glass products

06 01 06

8

Sludge from water treatment process of textile and dyeing industries

10 02 03

9

Sludge from water treatment process of manufacturing, supply, and use of organic colorings

03 03 08

10

Sludge from water treatment processes of the manufacturing, processing, supply of pesticides, timber preservation agents, and other organic biocides

03 04 08

11

Sludge from water treatment process at the facilities manufacturing, supplying, and using inorganic chemicals

02 05 01

12

Sludge from water treatment process of manufacturing, supply, and use of basic organic chemicals

03 01 08

3. SAMPLING, ANALYSIS, AND CLASSIFICATION OF SLUDGE

3.1. Sampling and analysis

3.1.1. The sampling and analyzing unit must have the certificate of eligibility to provide environmental monitoring services or appointed by an environment authority.

3.1.2. The sampling and analyzing unit is obliged to:

a) Take legal responsibility for the sampling and analysis result, which is the basis for classification and management of sludge.

b) Appoint qualified employees to take samples and make sampling records.

c) Apply the sampling principles and determination methods provided for in this Regulation.

3.1.3. Where there are discrepancies between the analysis results given by two units, the environment authority shall appoint a third unit, which also satisfies all requirements in 3.1.1) as the adjudicator, and request both units to reperform the sampling and analysis for comparison purposes.

3.2. Sampling, analysis, and classification of sludge

Samples must be taken on 03 different days, the sampling time on each day must be different (beginning, middle, or end of a shift or a batch).

Sludge must be well stirred before being sampled; At least 03 samples at 03 random positions shall be taken.

The mean value of analysis results shall be compared to the absolute threshold Htcor hazardous threshold according to leaching concentration Ctcto classify sludge

4. DETERMINATION METHODS

4.1. Sludge shall be sampled in accordance with instructions in the following national standards:

- TCVN 6663-13:2000 - Water quality –  Sampling. Part 13: Guidance on sampling of, wastewater and related sludge;

- TCVN 6663-15:2004 - Water quality – Sampling. Guidance on preservation and handling of sludge and sediment samples.

4.2. Factors in sludge shall be determined in accordance the following national and international standards:

- ASTM D4980-89: Standard test method for screening of pH in waste.

- Solid wastes - The toxicity characteristic leaching procedure.

- TCVN 9240:2012 - Standard test method for single batch extraction method for wastes.

- EPA SW-846 - Method 9010 or 9012: Determination of Cyanide in wastes.

- US EPA 9071 B - Method 9071 B n-Hecxan extractable material (HEM) for sludge, sediment, and solid samples.

4.3. Solution analysis after leaching:

Accredited national and international standards shall apply to determination of leaching concentrations of hazardous components.

5. IMPLEMENTATION

5.1.This Regulation replaces QCVN 07:2009/BTNMT – National Technical Regulation on thresholds of hazardous wastes promulgated together with Circular No. 16/2009/TT-BTNMT dated November 16, 2009 of the Minister of Natural Resources and Environment when determining hazardous thresholds of waste sludge from water treatment process.

5.2.The hazardous thresholds of the factors in this Regulation are equivalent to QCVN 07:2009/BTNMT. Where QCVN 07:2009/BTNMT is revised or replaced, hazardous thresholds shall be determined according to new regulations.

5.3.Environment authorities are responsible for providing guidance and inspect the implementation of this Regulation.

5.4.Where the determination methods provided in this Regulation are revised or replaced, the newest ones shall apply.

 

QCVN 51:2013/BTNMT

NATIONAL TECHNICAL REGULATION ON EMISSION FOR STEEL INDUSTRY

Foreword

QCVN 51:2013/BTNMT is compiled by the drafting board, submitted by Vietnam Environment Administration, Science & Technology Department and Legal Department, and promulgated together with the Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Minister of Natural Resources and Environment.

 

NATIONAL TECHNICAL REGULATION ON EMISSION FOR STEEL INDUSTRY

1.GENERAL PROVISIONS

1.1. Scope

This Regulation deals with maximum permissible value of pollution factors in emission from steel industry discharged into the air.

1.2. Regulated entities

This Regulation applies to steel factories. Every entity related to the discharge of industrial emission from steel production into the air shall comply with this Regulation.

1.3. Interpretation of terms

In this Regulation, the terms below are construed as follows:

1.3.1. Emission from steel industry means the mixture of matters discharged into the air from chimneys of steel factories.

1.3.2. A steel factory means a factory or manufacturing facility that engages in one of the following production stages: coke production, sintering, reconstitution, cast iron production, steel tempering, and steel rolling.

1.3.3. Normative cube meter of emission means (Nm3) a cube meter of emission at 25°C in temperature and 760 mmHg in absolute pressure.

2. TECHNICAL REGULATIONS

2.1. Maximum permissible value of pollution factors in emission from steel industry

Over the normal operation, maximum permissible values of pollution factors in emission from steel industry are calculated as follows:

Cmax= C x Kpx Kv

Where:

- Cmaxis the maximum permissible values of factors in emission from steel industry, expressed in mg/Nm3

- C is values of the factors in 2.2

- Kpis the coefficient of discharge rate corresponding to emission flow rate of each chimney of the steel factory specified in 2.3

- Kvis the coefficient of region which corresponds to the location of the steel factory according to 2.4.

2.2. C value

2.2.1. C value of the factors of emission from ore reconstitution, sintering, cast iron production, steel tempering, and steel rolling are provided in Table 1

Table 1 – C Value for calculating maximum permissible value of pollution factors in emission from steel industry

(not applied to coke production)

No.

Factor

Unit

C value

A

B1

B2

1

Total particles

mg/Nm3

400

200

100

2

Carbon oxide, CO(*)

mg/Nm3

1,000

1,000

500

3

Nitrous oxide, NOx(expressed in NO2)

mg/Nm3

1,000

850

500

4

Sulphur dioxide, SO2

mg/Nm3

1,500

500

500

5

Cadmium and its compounds (expressed in Cd)

mg/Nm3

20

5

1

6

Copper and its compounds (expressed in Cu)

mg/Nm3

20

10

10

7

Lead and its compounds (expressed in Pb)

mg/Nm3

10

5

2

8

Zinc and its compounds (expressed in Zn)

mg/Nm3

30

30

20

9

Antimony and its compounds (expressed in Sb)

mg/Nm3

20

10

10

10

Total volatile organic chemicals, VOC(**)

mg/Nm3

 

20

20

11

Total Dioxin/Furan (expressed in TEQ)(***)

ng/Nm3

 

0.6

0,1

(*) CO value in the table does not apply to sintering stage. CO during sintering stage shall controlled by calculating the chimney height to ensure ambient air quality;

(**) Total VOC in emission is only controlled during sintering stage;

(**) Total Dioxin/Furan in emission is only controlled during sintering stage and electric arc furnace stage;

Reference oxygen content in emission from steel industry is 7%

2.2.2. C values of factors in emission during coke production are provided in Table 2 below:

Table 2 – C Values for calculating maximum permissible value of pollution factors in emission during coke production

No.

Factor

Unit

C value

A

B1

B2

1

Total particles

mg/Nm3

400

200

100

2

Sulphur dioxide, SO2

mg/Nm3

1,500

500

500

3

Nitrous oxide NOx(expressed in NO2)

mg/Nm3

1,000

850

750

4

Cadmium and its compounds (expressed in Cd)

mg/Nm3

20

5

1

5

Lead and its compounds (expressed in Pb)

mg/Nm3

10

5

2

6

Total volatile organic chemicals, VOC

mg/Nm3

 

20

20

7

Benzo(a)pyrene

mg/Nm3

-

0.1

0.1

8

Antimony and its compounds (expressed in NH3)

mg/Nm3

76

50

30

9

Hydrochloric acid, HCl

mg/Nm3

200

50

20

10

Fluorine, HF, or inorganic compounds of fluorine (expressed in HF)

mg/Nm3

50

20

10

11

Hydrogen sulfide H2S

mg/Nm3

7.5

7.5

5

Reference oxygen content in emisison from steel industry is 7%

2.2.3. Application roadmap:

- New steel factories (whose environmental impact assessment reports and commitments to environment protection are approved after this Regulation takes effect) shall apply C values in Column B2of Table 1 or Table 2

- The steel factories that have been operating before January 16, 2007 shall apply C values in Column A in Table 1 or Table 2 until the end of December 31, 2014. From January 01, 2015, C values in Column B1of Table 1 or Table 2 shall apply.

- Other factories shall apply C values in Column B1of Table 1 or Table 2.

- Values of Benzo(a)pyrene and VOC shall apply from January 01, 2015.

- Values of Dioxin/Furan shall apply from January 01, 2017.

2.3. Coefficient of discharge rate Kp

Coefficients of discharge rate Kpare provided for in Table 3 below:

Table 3: Coefficient of discharge rate Kpof each chimney

Discharge rate (m3/h)

Kp

P ≤ 20,000

1

20,000 < P ≤ 100,000

0.9

P > 100,000

0.8

Discharge rate P is the highest discharge rate of each chimney in the environmental impact assessment report, commitment to environment protection, environmental protection scheme, or Certificate of environmental protection works and measures which is approved by a competent authority.

If the discharge rate P is changed and thus no longer correspond to coefficient Kpbeing applied, the steel factory must notify the competent authority to adjust Kp.

2.4. Coefficient of region Kv

Coefficients of region Kvare provided for in Table 4:

Table 4. Coefficient of region Kv

Region

Kv

Region 1

Special Class urban areas(1)và Class I urban areas(1); specialized forests(2); rated natural heritage, historic and cultural sites(3); or the areas below 02 km away from the boundaries of the said areas.

0.6

Region 2

Class II, III, and IV urban areas(1)and the areas below 02 km away from the boundaries of the said areas; suburban areas of Special Class areas and Class I areas, the distance of which from the boundaries of urban areas are ≥ 02 km and ≤06 km.

0.8

Region 3

Industrial parks, Class V urban areas(1); suburban areas of Class II, III, and IV urban areas, the distance of which from the boundaries of urban areas are ≥ 02 km; the areas that are ≤ 02 km from the boundaries of the said areas(4)

1.0

Region 4

Urban areas

1.2

Region 5

Urban areas on highlands

1.4

Notes

(1)Urban areas are determined according to Decree No. 42/2009/NĐ-CP dated May 07, 2009 on classification of urban areas;

(2)Specialized forests according to the Law on Forest protection and development dated December 14, 2004 include: national parks, sanctuaries, landscape protection zones, forests serving scientific research and experiments;

(3)Natural heritage, historical and cultural sites established and rated by UNESCO, the Prime Minister, or regulatory bodies;

(4)If the distance from emission source to 02 areas or more is smaller than 02 km, the smallest coefficient of region shall apply;

(5)The distance mentioned in Table 4 is from the emission source.

3. DETERMINATION METHODS

3.1.Methods for sampling and determination of factors in emission from steel industry are provided in the standards below:

No.

Factor

Method and standard number

1

Determination of sampling position

- EPA 1 - Sample and velocity traverses for stationary sources

2

Velocity and flow rate

- EPA 2 - Determination of stack gas velocity and volumetric flow rate

3

Dry molecular weight

- EPA 3 - Gas analysis for the determination of dry molecular weight

4

Gas moisture

- EPA 4 - Determination of moisture content in stack gases

5

Total particles

- TCVN 5977:2009 - Stationary source emissions – Manual determination of mass concentration of particulate matter;

- EPA 5 - Determination of particulate matter emissions from stationary sources.

6

Sulphur dioxide, SO2

- TCVN 6750:2000 - Stationary source emissions - Determination of mass concentration of sulfur dioxide - Ion chromatography method;

- EPA 6 - Determination of sulfur dioxide emissions from stationary sources.

7

Nitrous oxide, NoX

- TCVN 7172:2002 - Stationary source emissions – Determination of the mass concentration of nitrogen oxides – Naphthylethylenediamine photometric method;

- EPA 7 - Determination of nitrogen oxide emissions from stationary sources

8

Carbon oxide, CO

- TCVN 7242:2003 - Medical solid waste incinerators - Determination method of carbon monoxide (CO) concentration in fluegas

- EPA 10 - Determination of carbon monoxide emissions from stationary sources.

9

Cadmium and its compounds

- TCVN 7557-1:2005 - Medical solid waste incinerators – Determination of heavy metals in fluegas – Part 1: General requirements;

- TCVN 7557-3:2005 - Medical solid waste incinerators - Determination of heavy metals in fluegas -Part 3: Determination of cadmium and lead concentrations by flame and electrothermal atomic absorption spectrometric method;

- EPA 29 - Determination of metals emissions from stationary sources.

- EPA 12 - Determination of inorganic lead emissions from stationary sources

10

Copper and its compounds

11

Lead and its compounds

12

Zinc and its compounds

13

Antimony and its compounds

14

Benzo(a)pyrene

California EPA Method 429 - Determination of Polycyclic Aromatic Hydrocarbon (PAH) Emissions from Stationary Sources,

15

Ammonia and ammonium compounds

South Coast Air Quality Management District Method 207.1 - Determination of Amonia Emissions from Statitionary Sources.

16

Hydrochloric acid, HCl

- TCVN 7244:2003 – Medical solid waste incinerators - Determination method of hydrochloric acid (HCl) concentration in fluegas;

- EPA 26 - Determination of Hydrogen Chloride Emissions From Stationary Sources.

17

Fluorine, HF, or inorganic compounds of fluorine

- TCVN 7243:2003 - Medical solid waste incinerators - Determination method of hydrofloride acid (HF) concentration in fluegas;

Method 13A - Determination of total fluoride emissions from stationary sources - SPADNS zirconium Lake method.

Method 13B - Determination of total fluoride emissions from stationary sources - Specific ion electrode method.

18

Hydrogen sulfide H2S

EPA 15 - Determination of hydrogen sulfide, carbonyl sulfide, and carbon disulfide emissions from stationary sources.

19

Total Dioxin/Furan

- TCVN 7556-1:2005 – Medical solid waste incinerators – Determination of PCDD/PCDF concentration. Part 1: Sampling.

- TCVN 7556-2:2005 – Medical solid waste incinerators – Determination of PCDD/PCDF concentration. Part 2: Leaching and cleaning.

- TCVN 7556-3:2005 – Medical solid waste incinerators – Determination of PCDD/PCDF concentration. Part 3: Quantitative and qualitative analysis..

- EPA 23 - Determination of Polychlorinated Dibenzo-p-Dioxins and Polychlorinated Dibenzofurans From Stationary Sources

20

Total volatile organic chemicals, VOC

- EPA 18 - Measurement of gaseous organic compound emissions by gas chromatography

21

Measuring with hand-operated equipment

- TCVN 5976:1995 - Stationary source emission - Determination of the mass concentration of sulfur dioxide (SO2) - Performance characteristics of automated measuring methods

3.2.The methods provided in National Standards and International Standards with equivalent or higher accuracies than those mentioned in 3.1 are accepted.

4. IMPLEMENTATION

4.1.Environment authorities are responsible for providing guidance and inspect the implementation of this Regulation.

4.2.Where the standards cited in 3.1 are revised or replaced, the newest ones shall apply.

 

QCVN 52:2013/BTNMT

NATIONAL TECHNICAL REGULATION ON WASTEWATER OF STEEL INDUSTRY

Foreword

QCVN 52:2013/BTNMT is compiled by the drafting board, submitted by Vietnam Environment Administration, Science & Technology Department and Legal Department, and promulgated together with the Circular No. 32/2013/TT-BTNMT dated October 25, 2013 of the Minister of Natural Resources and Environment.

 

NATIONAL TECHNICAL REGULATION ON WASTEWATER OF STEEL INDUSTRY

1. GENERAL PROVISIONS

1.1. Scope

This Regulation deals with maximum permissible value of pollution factors in wastewater from steel industry discharged into receiving waters.

1.2. Regulated entities

1.2.1. This Regulation applies to wastewater from steel industry. Every entity related to the discharge of wastewater from steel industry into the receiving waters shall comply with this Regulation.

1.2.2. Regulations of centralized wastewater treatment plants shall apply to wastewater from steel industry discharged into collection systems of centralized wastewater treatment plants.

1.3. Interpretation of terms

In this Regulation, the terms below are construed as follows:

1.3.1. Wastewater from steel industry means wastewater produced during the operation of steel factories.

1.3.2. A steel factory means a factory or manufacturing facility that engages in one of the following production stages: coke production, sintering, reconstitution, cast iron production, steel refining, and steel rolling.

1.3.3. Receiving waters include: drainage systems of urban areas and residential areas; rivers, streams, canals, channels, ditches; lakes, ponds, swamps, coastal waters with certain purposes.

2. TECHNICAL REGULATIONS

2.1. Maximum permissible value of pollution factors in wastewater from steel industry discharged into receiving waters

2.1.1. Maximum permissible value of pollution factors in wastewater from steel industry discharged into receiving waters is calculated as follows:

Cmax= C x Kqx Kf

Where:

- Cmax: Maximum permissible value of pollution factors in wastewater from steel industry discharged into receiving waters.

- C: value of pollution factors in emission from steel industry according to 2.2;

- Kq: the coefficient of the receiving waters according to 2.3, which corresponds to flow rate of the river, stream, canal, channel, ditche, or volume of the lake, pond, swamp, or purpose of the coastal waters.

- Kf: coefficient of discharge rate according to 2.4, which corresponds to the total discharge rate of steel factories;

2.1.2. With regard to temperature and pH, Cmax= C (Kqand Kfare not applied)

2.1.3. If wastewater from steel industry is discharged into the drainage system of an urban area or residential area without a centralized wastewater treatment plant, then Cmax= C in column B Table 1.

2.2. C values of pollution factors in wastewater from steel industry are provided in Table 1

Table 1. C values of pollution factors in wastewater from steel industry, which are the basis for calculating maximum permissible value

No.

Factor

Unit

C value

A

B

1

Temperature

°C

40

40

2

pH

-

6 đến 9

5.5 đến 9

3

BOD5(20°C)

mg/l

30

50

4

COD

mg/l

75

150

5

Suspended solids

mg/l

50

100

6

Total mineral oil

mg/l

5

10

7

Total phenol

mg/l

0.1

0.5

8

Total cyanide

mg/l

0.1

0.5

9

Total nitrogen

mg/l

20

60

10

Total mercury

mg/l

0.005

0.01

11

Cadmium

mg/l

0.05

0.1

12

Chromium (VI)

mg/l

0.05

0.5

Column A in Table 1 provides the C values of pollution factors in wastewater from steel industry discharged into the water sources used for tap water supply;

Column B in Table 1 provides the C values of pollution factors in wastewater from steel industry discharged into the water sources that are not used for tap water supply;

The purpose of receiving waters is determined where wastewater is discharged.

2.3. Coefficient Kqof receiving waters

Flow rate coefficient Kqof rivers, streams, canals, channels, ditches are provided in Table 2 below:

Table 2: Flow rate coefficients Kqof receiving waters

Flow rate of receiving waters (Q)

Unit: (m3/s)

Kq

Q ≤ 50

0.9

50 < Q ≤ 200

1

200 < Q ≤ 500

1.1

Q > 500

1.2

Q is calculated according to mean value of flow rates of the receiving waters in 03 driest months in 03 consecutive years (according to a meteorology and hydrology agency).

2.3.2. Coefficients Kqof volume of ponds, lakes, swamps are provided in Table 3 below:

Table 3: Coefficients Kqof volume of receiving waters

Volume of receiving waters (V)

Unit: (m3)

Kq

V ≤ 10 x 106

0.6

10 x 106< V ≤ 100 x 106

0.8

V > 100 x 106

1.0

V is calculated according to mean value of volume of the receiving waters in 03 driest months in 03 consecutive years (according to a meteorology and hydrology agency).

2.3.3. If there is no information about the flow rate of the river, stream, canal, channel, or ditch, then Kq= 0.9. If there is no information about the volume of the lake, pond, swamp, then Kq= 0.6.

2.3.4. Coefficient Kqof receiving waters being coastal waters, coastal saltwater and brackish water lagoons.

Kq= 1 shall apply to coastal seawaters used for marine life protection, water sports and entertainment, saltwater and brackish water lagoons.

Kq= 1.3 shall apply to coastal seawaters that are not used for marine life protection, water sports and entertainiment.

2.4. Discharge rate coefficientKf

Discharge rate coefficient Kfare provided in Table 4 below:

Table 4: Discharge rate coefficientKf

Discharge Rate (F)

Unit: m3/24h

Kf

F ≤ 50

1.2

50 < F ≤ 500

1.1

500 < F ≤ 5,000

1.0

F > 5,000

0.9

Discharge rate F is calculated according to the highest discharge rate in the environmental impact assessment, commitment to environment protection, environmental protection scheme, or certificate of environmental protection completions and environmental protection tasks approved by a competent authority.

If the discharge rate no longer corresponds to the coefficient Kfapplied, the steel factory must request the competent authority to adjust coefficient Kf.

3. DETERMINATION METHODS

3.1. Methods for sampling and determination of factors in wastewater from steel industry are provided in the standards below:

No.

Factor

Method and standard number

1

Sampling

- TCVN 6663-1:2011 (ISO 5667-1:2006) - Water quality -- Sampling -- Part 1: Guidance on the design of sampling programmes and sampling techniques;

- TCVN 6663-3:2008 (ISO 5667-3:2003) - Water quality -- Sampling. Guidance on the preservation and handling of water samples;

- TCVN 5999:1995 (ISO 5667-10:1992) - Water quality – Sampling. Guidance on sampling of waste waters.

2

Temperature

- TCVN 4557:1998. Waste water - Method for dertermination of the temperature;

3

pH

- TCVN 6492:2011 (ISO 10523:2008). water quality -- Determination pH;

4

BOD5(20°C)

- TCVN 6001-1:2008 (ISO 5815-1:2003), Water quality -- Determination of biochemical oxygen demand after n days (BODn) -- Part 1: Dilution and seeding method with allylthiourea addition;

- TCVN 6001-2:2008 (ISO 5815-2:2003), Water quality -- Determination of biochemical oxygen demand after n days (BODn) -- Part 2: Method for undiluted samples;

- APHA 5210 B - Determination of BOD

5

COD

- TCVN 6491:1999 (ISO 6060:1989) Water quality - Determination of chemical oxygen demand;

- APHA 5220 - Determination of COD

6

Suspended solids

- TCVN 6625:2000 (ISO 11923:1997). Water quality -- Determination of suspended solids by filtration through glass-fibre filters;

- APHA 2540 - Determination of suspended solids

7

Total mineral oil

- TCVN 5070:1995. Water quality - Weight method for determination of oil and oil product.

- TCVN 7875:2008 - Water - Determination of oil and grease - Partition-infrared method;

- APHA 5520 - Determination of total mineral oil

8

Total phenol

- TCVN 6216:1996 (ISO 6439:1990) - Water quality -- Determination of phenol index -- 4-Aminoantipyrine spectrometric methods after distillation;

- TCVN 6199-1:1995 (ISO 8165/1:1992) Water quality — Determination of selected monovalent phenols — Part 1: Gas-chromatographic method after enrichment by extraction;

- APHA 5530 - Determination of phenol

9

Total cyanide

- TCVN 6181:1996 (ISO 6703-1:1984) Water quality – Determination of total cyanide;

- APHA 4500-CN-- Determination of cyanide

10

Total nitrogen

- TCVN 6638:2000 Water quality – Determination of nitrogen

- catalytic digestion after reduction with devarda alloy;

- APHA 4500-N.C và 4500-NO3-.E – Determination of nitrogen

11

Total mercury

- TCVN 7877:2008 (ISO 5666:1999) Water quality – Determination of Mercury;

- APHA 3500-Hg - Determination of Mercury

12

Cadmium

- TCVN 6193:1996 Water quality - Determination of cobalt nickel, copper, zinc, cadmium, and lead Flame atomic absorption spectrometric methods;

- TCVN 6665:2011 (ISO 11885:2007) Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES);

- APHA 3500-Cd - Determination of cadmium

13

Chromium (VI)

- TCVN 6658:2000 Water quality - Determination of chromium (VI) - Spectrometric method using 1,5-diphenylcarbazide;

- TCVN 6665:2011 (ISO 11885:2007) Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES);

- APHA 3500-Cr.B - Determination of Chromium

3.2.The methods provided in National Standards and International Standards with equivalent or higher accuracies than those mentioned in 3.1 are accepted.

4. IMPLEMENTATION

4.1.Environment authorities are responsible for providing guidance and inspect the implementation of this Regulation.

4.2.Where the standards cited in 3.1 are revised or replaced, the newest ones shall apply.

 

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