Abstract
Wastewater treatment by cyanobacteria is advantageous in many senses. In the pre sent study, biological treatment of wastewater by five different environmental isolates of cyanobacteria was investigated individually under general tropical climatic condi tions. Each cyanobacterial strain reduced the BOD, COD, nutrient levels and bacterial count of wastewater considerably. The marine isolate of Phormidium was found to be the most effective amongst the strains studied. Biochemical observations like those of chlorophyll a and protein content of wastewater treating strains were also made. Biomass production in wastewater was comparable to that of cultural media. Cyano bacterial biomass production side by side with wastewater biotreatment could have a better economic prospect.
Published Version
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