STUDY ON PHYSICO-CHEMICAL PARAMETERS OF WATER EFFLUENTS FROM PHARMACEUTICAL INDUSTRIES IN ILORIN, NIGERIA
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Date
2013
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Faculty of Pure and Applied Sciences, LAUTECH, Nigeria
Abstract
The present research work deals with the study of some of the important physico- chemical parameter of industrial effluents collected from pharmaceutical in Ilorin, Kwara State. The study reveals that pharmaceutical industries are responsible for polluting the surrounding aquatic environment. It was observed that pH values of effluent samples collected from the pharmaceutical industries were slightly lower than pH of 6.5 to 8.5 as recommended by ISI and WHO. The effluent sample collected shows extremely high Total Dissolve Solid TDS content range of 168-25, 197.42 mg/L and correspondingly high Total Solid (TS) content of 169-16 – 198-63 mg/L. The chloride content in the effluent was 230, 240 and 300 mg/L which were slightly higher than acceptable limit of 200 mg/L set by WHO. The BOD values of effluent sample collected were 1430, 1475 and 1627 mg/L respectively which lie above the maximum permitted BOD content of < 100 to 300 mg/L. The COD values in the different effluents sample were also very much higher than maximum permissible limit of 40 mg/L according to NESREA Standard. The overall result of this study clearly indicated that effluents from these pharmaceutical industries were highly polluted hence, they have resulted in pollution of nearby water body thereby affecting the growth of vegetation and aquatic life. The result of the present investigation point out the need to implement common objectives compatible policies and programme for improvement in the industrial waste water treatment methods.
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Keywords
physico-chemical parameters, pharmaceutical industries, NESREA Standard, permissible