Journal of Applied Sciences and Environmental Management | |
Impact of partially treated sewage effluent on the water quality of recipient Epie Creek Niger Delta, Nigeria using Malaysian Water Quality Index (WQI) | |
AGBOZU, I.E1  RIM-RUKEH, A1  | |
关键词: Malaysian Water Quality Index; Sewage; Wastewater treatment plant; Epie Creek; Fallout point; Class IV water; | |
DOI : | |
学科分类:环境科学(综合) | |
来源: University of Port Harcourt * Department of Pure and Industrial Chemistry | |
【 摘 要 】
Impact of partially treated sewage effluent on the water quality of recipientEpie Creek in the Niger Delta area of Nigeria was investigated experimentally by analysing thephysico-chemical and biological characteristics of the surface water samples collected at four(4) sampling stations: at the effluent discharge point (fall out) (SS2), 500 m upstream (SS1),500m downstream (SS3) and 1000m (SS4) downstream respectively from the point ofdischarge. Sampling was carried out weekly between June 2009 and May 2010 (48 weeks).Measured parameters of the water samples and the corresponding results are: pH (5.60 – 6.80),turbidity (21.5 – 34.7 NTU), electrical conductivity (34.7 – 82.1 μS/cm), biochemical oxygendemand (BOD) (12.4 -36.7 mg/l), chemical oxygen demand (COD) (17.3 – 53.2 mg/l), totalsuspended solids (TSS) (17.70- 45.8 mg/l), dissolved oxygen (DO) (3.73 – 5.20 mg/l), totaldissolved solids (TDS) (57.3 – 187.0 mg/l), total phosphate (0.73 – 1.73 mg/l), ammoniacalnitrogen (AN) (4.10 – 5.0 mg/l) and total fecal coliform count (TFCC) (2,120 – 20,800 cfu/ml).The water quality at each of the sampling points was also assessed using Malaysian WaterQuality Index (WQI) and results show that, the water quality of Epie Creek defined at thesampling stations belongs to Class IV with values that ranged between 31.0 and 51.9.Empirically, the water quality can be described as fairly polluted. This means that the waterquality across the sampling points is poor indicating that most parameters have deteriorated.© JASEM
【 授权许可】
Unknown
【 预 览 】
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RO201912010247916ZK.pdf | 313KB | download |