1.

An industry discharges sewage into a river having flow rate of 8 m3/sec. BOD5 of sewage is 180 mg/l. Dissolved oxygen of the river before the sewage is discharged was 8.6 mg/l. The maximum permissible discharge(in lps rounded off to nearest integer) allowed into the river in order to maintain minimum D.O. for survival of aquatic life is9200

Answer» An industry discharges sewage into a river having flow rate of 8 m3/sec. BOD5 of sewage is 180 mg/l. Dissolved oxygen of the river before the sewage is discharged was 8.6 mg/l. The maximum permissible discharge(in lps rounded off to nearest integer) allowed into the river in order to maintain minimum D.O. for survival of aquatic life is
  1. 9200


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