Description
What is the ETP plant?
An Effluent Treatment Plant (ETP) is a specialized facility designed to treat and purify industrial wastewater before its safe discharge into the environment. ETPs employ various physical, chemical, and biological processes to remove contaminants, ensuring compliance with environmental regulations and minimizing negative impacts on ecosystems and public health.
What are the Parameters Standards for ETP?
Effluent from industry must meet the National Standards for waste water set by Government. Effluent Treatment plant ETP or Sewage Treatment Plant (STP) should design & operated in such a way, that it treats the waste water to these standards.
Below are ETP Parameters with standards:
| Parameters | Units | Limits |
| pH | – | 5.5-9.0 |
| Suspended Solids | mg/l | 100 |
| COD | mg/l | 250 |
| Total Dissolved Solids | mg/l | 2100 |
| Total Ammonical Nitrogen | mg/l | 50 |
| BOD 3 Days, 27 0C | mg/l | 100 |
| Oil & Grease | mg/l | 10 |
| Chloride as Cl | mg/l | 600 |
| Sulphate as SO4 | mg/l | 1000 |
| Cyanide | mg/l | 3 |
| Fluoride | mg/l | 2 |
| Lead as pb | mg/l | 0.1 |
| Mercury as Hg | mg/l | 0.01 |
| Nickel as Ni | mg/l | 3 |
| Zinc as Zn | mg/l | 5 |
| Hexavalent Chromium Cr+6 | mg/l | 0.1 |
| Total Metal | mg/l | 10 |
