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Standards for Discharge of Effluents from Textile Industry

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Introduction

The textile industry is a significant contributor to the Indian economy. It occupies a unique position in the Indian economy in terms of its contribution to industrial production, employment and exports. Indian textile industry is predominantly cotton-based. Cotton textiles are produced in organized mills and decentralized sector.

Impact on Environment

India is a first country that has mentioned the legality of the environment in its constitution. There are no specific environmental laws for the textile sector alone. However, there are industry-specific standards, which the textile industry has to comply while setting up or operating an industrial unit. The Indian environmental legislation is very stringent but poorly enforced. The regulatory authorities are the Ministry of Environment and Forests (MoEF), Central Pollution Control Board (CPCB) at the central level, and the State Pollution Control Board (CPCB) at the state levels.

For more details please visit  http://cpcb.nic.in/effluent-emission/

In exercise of the powers conferred by section 6 and 25 of the Environment (Protection) Act, 1986 (29 of 1986), the Central Government hereby makes the following rules further to amend the Environment (Protection) Rules,1986 namely;-

S.No

Industry

Parameter

Standard

(applicable for all modes of disposal)

1

All Integrated textile units,

units of Cotton / Woollen /

Carpets / Polyester, Units

having Printing / Dyeing /

Bleaching process or

manufacturing and

Garment units.

TREATED EFFLUENTS

Maximum concentration values in mg/l except

for pH, color, and SAR

 

 

pH

6.5 to 8.5

 

 

Suspended solids

100

 

 

Color,P.C.U ( Platinum cobait Units)

150

 

 

Bio-Chemical Oxygen

Demand [3days at 27oC]

(BOD3)

30

 

 

Oil and grease

10

 

 

Chemical Oxygen Demand

(COD)

250

 

 

Total Chromium as (Cr)

2.0

 

 

Sulphaide (as S)

2.0

 

 

Phenolic Compounds

(as C6H5OH)

1.0

 

 

Total Dissolved Solids Inorganic (TDS)

2100**

 

 

Sodium Absorption Ratio(SAR)

26**

 

 

Ammonical Nitrogen (as N)

50

Notes:

  1. *In case of direct disposal into rivers and lakes, the Central Pollution Control Board (CPCB) or State Pollution Control Boards (SPCBs)/Pollution Control Committees (PCCs) may specify more stringent standards depending upon the quality of the recipient system.

  2. **Standards for TDS and SAR shall not be applicable in case of marine disposal through proper marine outfall.

  3. The treated effluent shall be allowed to be discharged in the ambient environment only after exhausting options for reuse in industrial process/irrigation in order to minimize freshwater usage.

  4. Any textile unit attached with the Common Effluent Treatment Plant (CETP) shall achieve the inlet and treated effluent quality standards as specified in serial number 55 of scheduled-I to the environment (Protection) Rules, 1986 and shall also be jointly and severally responsible for ensuring compliance.

  5. The standalone Micro, Small and Medium Enterprises (MSMEs) as per the MSME Development Act, 2006 shall meet the values specified above.

  6. The standalone large-scale units shall meet the values specified above, however, Central Pollution Control Board (CPCB) or State Pollution Control Boards (SPCBs)/ Pollution Control Committees (PCCs) with the approval of Central Pollution Control Board (CPCB), may mandate Zero Liquid Discharge in Large-scale units in environmentally sensitive/ critical areas.

  7. The TDS value with respect to treated effluent shall be 2100 milligram per liter; however, in the case where TDS in intake water is above 1100 milligram per liter, a maximum contribution up to 1000 milligram per liter shall be permitted provided the maximum value of 3100 milligrams per liter is not exceed in the treated effluent”

For more details please call or click  Delhi Pollution Committee

 State Pollution Board 

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Author
Vipan Singh
Vipan is known for his passion for diversity and his work with corpseed. In his spare time, he is involved with numerous charitable activities and considers his greatest achievement to be the fact that he helps Startups and Entrepreneurs to scale up