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首页> 外文期刊>Current Journal of Applied Science and Technology >Effects of Cassava Wastewater on the Quality ofReceiving Water Body Intended for Fish Farming
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Effects of Cassava Wastewater on the Quality ofReceiving Water Body Intended for Fish Farming

机译：木薯废水对打算养鱼的水体质量的影响

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Aim: The goal of the study is to determine the suitability of a pond into which cassava mill wastewater is discharged for fish farming. The pond which is located adjacent the Faculty of Engineering of the Delta State University, Oleh Campus is currently being proposed for acquisition by the Faculty for the project.Methodology: A total of 13 physicochemical parameters were analysed from samples collected at four different points around the pond. The parameters investigated were pH, CN, BOD, COD, DO, turbidity, conductivity, hardness, Pb2+, Hg2+ and Fe2+. The TSS, TDS, DO, total hardness were determined by the UV absorption spectrophotometer at 220 and the metal ions at 420nm respectively; while the Winkler’s titrimetric method was used to determine the COD and BOD. The pH, conductivity and turbidity were determined using the pH meter, conductivity meter and turbidity meter respectively.Results: The average cyanide content at the discharge point over the four weeks experimental period was 39.0±1.69 with a highly significant effect (p=0.042) and the lowest value of 3.8±0.01 mg/l was recorded 10 metres downstream of the discharge point. The COD, BOD, TDS and TSS at the discharge point were 1236±0.63 mg/l, 430.7±0.53 mg/l, 975±0.90 mg/l and 4030±9.26 mg/l respectively; while the Pb2+ and Hg2+ were higher at the sample point close to a refuse dump. Values recorded for all the tested parameters were far higher than that recommended for water bodies suitable for fish farming.Conclusion: The pond cannot be used for the intended project at its present form, it could be considered for use however, if all sources of pollution are stopped with proper remediation.
机译：目的：该研究的目的是确定将木薯磨坊废水排入池塘进行鱼类养殖的适宜性。该项目目前正在提议与三角洲州立大学工程系Oleh校园相邻的池塘供该项目使用。方法：从在该区域周围四个不同点收集的样品中分析了总共13个理化参数。池塘。研究的参数为pH，CN，BOD，COD，DO，浊度，电导率，硬度，Pb2 +，Hg2 +和Fe2 +。 TSS，TDS，DO，总硬度分别通过紫外吸收分光光度计在220和420nm处测定。而Winkler的滴定法则用于确定COD和BOD。用pH计，电导率仪和浊度计分别测定pH值，电导率和浊度。结果：在四个星期的实验期间，放电点的平均氰化物含量为39.0±1.69，有极显着的影响（p = 0.042）排放点下游10米处的最低值为3.8±0.01 mg / l。出水点的COD，BOD，TDS和TSS分别为1236±0.63 mg / l，430.7±0.53 mg / l，975±0.90 mg / l和4030±9.26 mg / l;而Pb2 +和Hg2 +在接近垃圾场的采样点较高。所有测试参数的记录值都远高于适合鱼类养殖的水体的建议值。结论：该池塘不能以目前的形式用于预定项目，但是，如果所有污染源都可以考虑使用已通过适当的补救措施停止了。

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