Abstract:
Pharmaceutical industry is one of the major industries causing water pollution. In India, It
generates about Million litres of waste water processed depending upon the process employed
and product manufactured. Considering the increased demand for Drugs, the Drug based
industries in India is expected to grow rapidly and have the waste generation and related
environmental problems are also assumed increased importance. Poorly treated waste water
with high levels of pollutants caused by poor design, operation or treatment systems creates
major environmental problems when discharged to surface water or land. Considering the
above stated implications an attempt has been made in the present project to evaluate one of
the WWTP for Drug industry. Samples were collected from six points; Raw effluent [P-1],
Oil and grease trap [P-2], Equalization tank [P-3], Aeration tank 1 [P-4], Aeration tank 2 [P-5]
and Secondary clarifier [P-6] to evaluate the performance of WWTP. Parameters analyzed for
evaluation of performance of WWTP are COD, BOD5 at 20° C, TSS, TDS, oil and grease,
Chloride and Alkalinity. Parameters like pH and oil & grease were used to access the
suitability of secondary effluent for reuse in gardening or some other purposes. The COD,
BOD5 at 20° C and TSS removal efficiency of WWTP were reduced upto very great extent
hence it is suitable to dispose it off into water bodies.
