Thông tư 13/2015/TT-BTNMT

CIRCULAR

PROMULGATING THE NATIONAL TECHNICAL REGULATION ON ENVIRONMENT

Pursuant to the Law on Technical Standards and Regulations dated June 29, 2006;

Pursuant to the Law on Environment Protection dated June 23, 2014;

Pursuant to the Government's Decree No. 127/2007/NĐ-CP dated August 01, 2007 providing the specific regulation on the implementation of a number of articles of the Law on Technical Standards and Regulations;

Pursuant to the Government’s Decree No. 21/2013/NĐ-CP dated March 4, 2013 on defining the functions, tasks, powers and organizational structure of the Ministry of Natural Resources and Environment;

At the request of the Director General of the Vietnam Environment Administration, the Director of the Department of Science and Technology and the Director of the Department of Legal Affairs;

The Minister of Natural Resources and Environment hereby promulgates the Circular on stipulating the national technical regulation on environment:

...

...

...

Article 2. This Circular shall come into force from June 1, 2015.

Article 3. The Director General of Vietnam Environment Administration, the Head of affiliates of the Ministry of Natural Resources and Environment, the Director of the Department of Natural Resources and Environment of central-affiliated city or province along with relevant organizations or individuals shall be responsible for implementing this Circular./.

PP. THE MINISTER
THE DEPUTY MINISTER




Bui Cach Tuyen

QCVN 13-MT: 2015/BTNMT

NATIONAL TECHNICAL REGULATION ON THE EFFLUENT OF TEXTILE INDUSTRY

Preface

...

...

...

NATIONAL TECHNICAL REGULATION ON THE EFFLUENT OF TEXTILE INDUSTRY

1. GENERAL PROVISIONS

1.1. Scope of application

This Regulation shall stipulate the maximum permissible value of parameter of pollutants in the textile industrial effluent discharged into the receiving waters. 

1.2. Applicable entities

1.2.1. This Regulation is intended for the textile industrial effluent. All organizations or individuals involving the discharge of textile industrial effluent into the receiving waters must comply with provisions laid down in this Regulation.

1.2.2.The textile industrial effluent discharged into the collection system of centralized wastewater treatment plant must conform to regulations set forth by the organization in charge of managing and operating that centralized wastewater treatment plant.

1.3. Interpretation of terms

...

...

...

1.3.1. Textile industrial effluent refers to industrial waste water discharged from factories or manufacturing facilities that apply the wet processing technology to the manufacture of textile products.

1.3.2. New manufacturing facility refers to textile factories or facilities which operate after the date on which this Regulation takes effect, including those which are under construction and have obtained the approval for the report on environmental impact assessment and environment protection commitment before this Regulation comes into force.

1.3.3. Manufacturing facility in operation refers to textile factories or facilities that operate before this Regulation takes effect.

1.3.4. Receiving water refers to the wastewater disposal system of an urban, residential area, industrial zone and industrial complex; river, stream, canal and channel; lake, pond or wetland; the purpose-made seashore water.

2. TECHNICAL REGULATION

2.1. The maximum permissible value of parameter of pollutants in the textile industrial effluent discharged into the receiving waters. 

2.1.1. The maximum permissible value of parameter of pollutants in the textile industrial effluent discharged into the receiving waters is calculated according to the following formula: Cmax = C x Kq x Kf

Where:

- Cmax denotes the maximum permissible value of parameter of pollutants in the textile industrial effluent discharged into the receiving waters. 

...

...

...

- Kq denotes the coefficient of the receiving water stipulated by section 2.3 equivalent to the flow of water in river, stream, channel, canal or ditch; the volume of lake, bond and wetland; the use purpose of the seashore waters.

- K_f denotes the discharge flow coefficient stipulated by section 2.4 equivalent to the flow of textile industrial effluent discharged into the receiving waters.

2.1.2. The maximum permissible value of Cmax = C shall be applied (except for the coefficient Kq and K_f) to the following parameters: Temperature and pH.

2.1.3. Textile industrial effluent discharged into the waste water disposal system of an urban or residential area where none of centralized wastewater treatment plants is developed shall apply the value Cmax = C stipulated at the column B, Schedule 1.

2.2. The value C serves as the basis for calculating the maximum permissible value of parameters of pollutants

Schedule 1: The value C as the basis for calculating the maximum permissible value of parameters of pollutants in textile industrial effluent

No.

Parameter

Measurement unit

...

...

...

A

B

1

Temperature

⁰C

40

40

2

pH

...

...

...

6-9

5.5-9

3

Color (pH = 7)

New facility

Pt-Co

50

150

Facility in operation

...

...

...

75

200

4

BOD₅ at the temperature of 20⁰C

mg/l

30

50

5

COD

...

...

...

mg/l

75

150

Facility in operation

mg/l

100

200

6

Total suspended solid (TSS)

...

...

...

50

100

7

Cyanide

mg/l

0.07

0.1

8

Surplus chlorine

...

...

...

1

2

9

Chromium VI (Cr⁶⁺)

mg/l

0.05

0.10

10

Total surfactant

...

...

...

5

10

The column A of Schedule 1 displays the value C of parameter of pollutant in textile industrial effluent discharged into the receiving water supplied to daily human activities;

The column B of Schedule 1 displays the value C of parameter of pollutant in textile industrial effluent discharged into the receiving water which is not supplied to daily human activities;

The use purpose of the receiving water is determined at the wastewater receiving facility.

As from January 1, 2020, the maximum permissible value applied to new textile facilities shall be so applied to all of the other textile facilities.

2.3.Coefficient of the receiving water Kq

2.3.1.The coefficient Kq equivalent to the flow of water in river, stream, channel, canal and ditch stipulated by Schedule 2 below:

Schedule 2: The coefficient Kq equivalent to the flow of the receiving water

...

...

...

Measurement unit: cubic meter/second (m³/s)

Coefficient Kq

Q ≤ 50

0.9

50 < Q ≤ 200

1

...

...

...

200 < Q ≤ 500

1.1

Q > 500

1.2

Q is calculated by the average value of the receiving water flow during 03 months when the lowest water level is recorded in 03 successive years (based on the data provided by the meteorology and hydrology agency).

2.3.2. The coefficient Kq equivalent to the volume of the receiving water in lake, pond and wetland is stipulated by the Schedule 3 below:

Schedule 3: The coefficient Kq equivalent to the receiving water

...

...

...

Measurement unit: cubic meter (m3)

Coefficient 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 by the average value of the volume of the receiving water contained in lake, pond and wetland during 03 months when the lowest water level is recorded in 03 successive years (based on the data provided by the meteorology and hydrology agency).

...

...

...

2.3.4.The coefficient Kq for the receiving water is the seawater zone along the shore, salt water lagoon and brackish seashore water.

The seashore water is used for aquatic animal protection, water sports and entertainment services, the salt water lagoon and brackish seashore water take the coefficient value Kq = 1.

The seashore water which is not used for aquatic animal protection, water sports and entertainment services, the coefficient value Kq = 1.3 is taken.

2.4. Coefficient of the discharge flow Kf

Coefficient of the discharge flow Kf is stipulated by the Schedule 4 below:

Schedule 4: Coefficient of the discharge flow Kf

Discharge flow (F)

Measurement unit: cubic meter/day and night (m³/24h)

Coefficient Kf

...

...

...

1.2

50 < F ≤ 500

1.1

500 < F ≤ 5,000

1.0

F > 5,000

0.9

The discharge flow F is calculated on the basis of the greatest discharge flow shown in the report on environmental impact assessment, environment protection commitment, project and proposal, or the Certificate of completion of construction works, and environment protection measures approved by competent authorities.

If the discharge flow F changes and is not suitable for the coefficient value Kf currently applied, the textile facility must report to competent authorities to have it adjusted.

...

...

...

3.1. Method for sampling and determination of the value of parameters of pollutants in textile industrial effluent shall conform to the following standards:

No.

Parameter

Examination method and calibration code

1

Sampling

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

...

...

...

- TCVN 5999:1995 (ISO 5667-10: 1992), Water quality – Sampling. Guidance on the effluent sampling.

2

Temperature

- TCVN 4557:1998, Effluent – Temperature determination method;

- SMEWW 2550.B - Standard Methods for the examination of water and wastewater – Temperature determination.

3

pH

...

...

...

4

Color

- TCVN 6185: 2008, Water quality – Examination and determination of color.

5

BOD₅ (20^oC)

- 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;

...

...

...

6

COD

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

- SMEWW 5220 B - Standard Methods for the examination of water and wastewater – COD determination.

7

Total suspended solid (TSS)

- TCVN 6625:2000 (ISO 11923:1997), Water quality – Determination of total suspended solid through glass fibre filtration;

...

...

...

8

Cyanide

- TCVN 6181:1996 (ISO 6703-1:1984), Water quality – Total Cyanide determination;

- SMEWW 4500-CN - - Standard Methods for the examination of water and wastewater – Cyanide determination.

9

Chlorine

- TCVN 6225-3:2011 (ISO 7393-3:1990), Water quality – Determination of free chlorine and total chlorine. Part 3 – Iodometric titration method for the determination of total chlorine.

...

...

...

10

Chrome (VI)

- TCVN 6658: 2000, Water quality - Determination of chromium (VI) - Spectrometric method using 1.5-diphenylcarbazide.

- SMEWW 3500-Cr.B B - Standard Methods for the examination of water and wastewater – Chrome determination.

11

Surfactant

- TCVN 6622-1:2009, Water quality - Determination of surfactants - Part 1: Determination of anionic surfactants by measurement of the methylene blue index.

...

...

...

4. IMPLEMENTATION

4.1. This Regulation shall replace QCVN 13:2008/BTNMT - National technical regulation on the effluent of textile industry issued together with the Decision No. 16/2008/QĐ-BTNMT of the Minister of Natural Resources and Environment dated December 31, 2008.

4.2. Environment-related regulatory agencies shall be responsible for providing guidance on, inspecting and supervising the implementation of this Regulation.

4.3. In case standards for examination methods referred to in this regulation have been changed, amended or replaced, the new standard shall be applicable.