Forward
Install an effluent treatment plant and try later! to improve the perfor- mance of the plant -should not be the golden guiding principle. Here is, of course, a case where emissions were attempted to be re<;tified by conducting involved plant performance investigation. Periodical evaluation of efficacy of the wastewater treatment plant enables the pollution control agency to closely follow the trend of compliance of the wa~tewater quality with the stipulated consent limits and to review the limits accordingly. Mother Dairy Plant, Delhi, installed and commissioned its wastewater treatment plant in April 1982, due to constant efforts of the Central Board for the Prevention and Control of Water Pollution. The treatment plant operation is evaluated by conducting a performance study, the assessment of which is brought out in this report. The study is fairly elaborate to give an assessment of overall treatment plant performance as well as unit-wise performance. Mathematical calculations for various influent and effluent parameters are dealt with in detail in this report, thus making