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| Biological Treatment of Fish Pond Waste Water by Coelastrum morum, a Green Microalgae |
Abideen Adeyinka Adekanmi , Sherifdeen Adeniyi Adekanmi , Opeyemi shafiu Adekanmi
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Abstract:
The use of natural remediation methods to remove contaminants from waste water is becoming more popular. One of the aims of waste water treatment is to reduce nutrient such as nitrate and phosphate level in effluent to a protective level of the receiving water body. Microalgae especially green algae have been used for several decades for biotreatment of fish pond waste water, yet the there is limited or no report on use of Coelastrum morum CoC for bio-treatment of wastes water from fish pond. This study is aim at treatment of used/wastes water discharged from fish pond at Agric, Oke Osun area, Osogbo and assessing wastewater treatment plants performance by Coelastrum morum CoC. Freshly discharge fish pond waste water sample (FPWWS) was collected from Agric Oke osun in Osogbo, Osun State, Nigeria and analyzed for the physicochemical parameters such as pH, Total Dissolved Solid (TDS), Electrical conductivity, dissolved oxygen, total Alkalinity, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), ammonia, phosphate and Nitrate by standard methods. 190ml of the sterilized FPWWS was inoculated with 10ml of Coelastrum morum. The inoculated sample was incubated under 2ft cold fluorescence light for two weeks and determines the physicochemical parameters at 7 days interval. The results observed for raw, biological treated and removal efficiency showed: pH (7.66 and 8.85), TDS (283.33 and 95.33mg/l with 66.35%), Electrical conductivity (449.33 and 195.00µS cm-1), Dissolved oxygen(3.57 and 1.13 mg/l with 68.35%), Total Hardness (64.17 and 33.29 mg/l with 48.12%), BOD (274 and 55.36mg/l with 79.80%), COD (420 and 72mg/l with 82.86%), ammonia (31.4 and 4.41 mg/l with 85.96%, phosphate (10.27 and 2.04 with 80.14%) and nitrate (27.11 and 6.57 mg/l with 75.77%). Biological treatment with Coelastrum morum CoC S a potential removal of pollutant and other wastes from the fish pond waste water.
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