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Hi all ,
can anybody tell me about the waste water characteristics of a Paint industry ? And how it can be dealt with??
Thanks !
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There are standards for discharge of wastewater from Paint industry, and that is as under -
PAINT INDUSTRY : WASTEWATER DISCHARGE STANDARD 
| Parameter | Concentration not to exceed units in mg/l except pH | 
| pH | 6.0 to 8.5 | 
| Suspended solids | 100 | 
| BOD at 27°C for 3 days | 50 | 
| Phenolics as C6H5OH | 1.0 | 
| Oil & grease | 10.0 | 
| Bioassay test | 90% survival of fish in 96 hours in 100% effluent | 
| Lead as Pb | 0.1 | 
| Chromium as Cr | |
| hexavalent | 0.1 | 
| total | 2.0 | 
| Copper as Cu | 2.0 | 
| Nickel as Ni | 2.0 | 
| Zinc as Ni | 5.0 | 
| Total heavy metals | 7.0 | 
Source : EPA Notification 
[G.S.R. 742(E), dt. 30th Aug; 1990]
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