| MAN-MADE FIBRE INDUSTRY : WASTEWATER DISCHARGE STANDARDS |
| Proess |
Parameter |
Concentration not to exceed, mg/l (except for pH) |
| i) Synthetic |
Suspended solids BOD, 3 days 270C pH |
100
30
5.5 to 9.0
|
| ii) Semi-Synthetic |
pH
Suspended solids
BOD, 3 days at 270C Zinc(as Zn) |
5.5-9.0
100
30
5 |
|
Source : EPA Notification
[S.O. 844(E), dt 19th Nov.,1986]
[G.S.R. 801 E,31st Dec.1993] |
| COTTON TEXTILE INDUSTRY : WASTEWATER DISCHARGE STANDARDS |
| Parameter |
Concentration not to exceed,
mg/l (except for pH & bio-assay) |
Common
PH
Suspended solids
BOD, 3 days at 270 C
Oil & grease
Bio-assay test
Special
Total chromium(as Cr)
Sulphide(as S)
Phenolic compounds as(C6H5 OH) |
5.5 to 9.0
100
150
10
90% survival of fish after 96 hrs in 100% effluent
2
2
5
|
|
|
The special parameters are to be stipulated by the Central Board in case of Union Territories and State Boards in case of states depending upon the dye used in the industry. Where the industry uses chrome dyes, sulphur dyes and/or phenolic compounds in the dying/printing process, the limits of chromium of 2 mg/litre, sulphides of 2mg/litre and phenolic compounds of 5 mg/litre respectively shall be imposed.
Where the quality requirement of the recipient system so warrants, the limit of BOD should be lowered up to 30 according to the requirement by the State Boards for the States and the Central Board for the Union Territories.
A limit on sodium absorption ratio (SAR) of 26 should be imposed by the State Board for the States and the Central Board for the Union Territories if the disposal of effluent is to be made on land.
|
Source : EPA Notification
[S.O. 844(E), dt. 19th Nov.1986] |
| COMPOSITE WOOLEN MILL : WASTEWATER DISCHARGE STANDARDS |
| Parameter |
Concentration |
|
Common
Suspended solids
PH
BOD, 3 days at 270C
Oil & grease
Bio-assay
Special
Total chromium(as Cr)
Sulphide (as S)
Phenolic Compounds as(C6H5OH)
|
100
5.5 to 9.0
100
10
90% survival of fish after 96 hrs in 100% effluent
2
2
5 |
|
|
The special parameters are to be stipulated by the Central Board in case of Union Territories and State Boards in case of States depending upon the dye used in the industry. Where the industry uses chrome dyes, sulphur dyes and/or phenolic.
Where the quality requirement of the recipient system so warrants, the limit of BOD should be lowered up to 30 according the requirement by the State Boards for the State and The Central Board for the Union Territories.
A limit on sodium absorption ratio(SAR) of 26 should be imposed by the State Boards for the State and The Central Board for the Union Territories if the disposal of effluent is to be made on land.
|
Source : EPA Notification
[S.O. 844(E),dt 19th Nov,1986] |
| JUTE PROCESSING INDUSTRY : LIQUID EFFLUENT STANDARDS |
| Parameter |
Concentration not to exceed,
in mg/l except pH |
pH
BOD at 270 C for 3 days
Total suspended solids
Oil & grease |
5.5 to 9.0
30
100
10 |
|
|
Note:
1. Stack emissions from boiler house shall conform to standards already prescribed under the Environment (Protection) Act, 1986 vide Notification No. GSR 176(E), 02.04.1996.
|
Source: EPA Notification
[No GSR 93(E), Feb. 21, 1991] |
