____________ substances present in sewage are removed in grit chamber during sewage treatment?
2
Industrial workers working in leather tanning & manufacturing units are prone to suffer from ___________________?
3
Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by_______________?
These are just sample questions. The actual quiz contains 25 questions.
