Abstract
Oil industry waste water is one of the important source of water pollution. It is rich in organic contents and shows eutrophic condition. It is contains oil, oil products and other organic contents which is responsible for pollution of water and affects aquatic flora and fauna. In such environment there are certain algae which grow and found in diverse form. Oil industry waste water is used as source of nutrients by algae. During present research work algal diversity and physico-chemical assessment of oil industry waste water has been studied in detail. Experimental work was carried out for two consecutive years i.e. from June 2015 to May 2017. Algal samples were collected at monthly intervals from waste water of Mahesh oil industry, located in Selu tehsil area of Parbhani district of Maharashtra. Physico-chemical assessment of oil industry waste water was also performed by selecting certain physico-chemical parameters. Total of 40 species under 27 genera belonged to Chlorophyceae, Bacillariophyceae, Euglenophyceae and Cyanophyceae were recorded. Cyanophycean algal taxa dominated algal flora. Algal genera such as Gloeocystis, trebouxia, Chlorella, Navicula, Cymbella, Nitzschia, Euglena, Aphanothece, Oscillatoria, Phormidium and Plectonema dominated algal flora. It was observed that winter and summer seasons were suitable for abundance of algae. There is positive correlation between physico-chemical parameters of water and algal flora.
Highlights
Oil industry waste water is one of the important source of water pollution
Algal taxa which were abundant in present study were Gloeocystisgigas, Gloeocystis major, Trebouxiahumicola, Chlorella vulgaris, Navicula cupsidata, Cymbella aspera, Nitzschia palea, Euglena acus, Aphanothece nidulans, Oscillatori aacuta, Oscillatoria obscura, Oscillatoria quadripunctulata, Oscillatori asubbrevis, Phormidium jenkelianum, Phormidium molle and Plectonema gracillimum
Seasonal variation study of algal flora revealed that Chlorophycean algae, diatoms and Cyanophycean algae were abundant in winter and summer seasons
Summary
Oil industry waste water is one of the important source of water pollution. It contains oil, oil products and other organic contents which is responsible for pollution of water. Review of literature reveals that very little work has been undertaken on algal flora of oil industry waste water (Kumar et al.1974, Gaur and Kumar 1981 and Reddy et al 1983). In present study an attempts have been made to explore algal flora of oil industry waste water and to asses water quality by performing physico-chemical assesment
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