Evaluating the efficiency of municipal wastewater treatment plant in AL-Dhibaei, Iraq

Q3 Agricultural and Biological Sciences
Bashar Tareq Ismael AL-Shandah, H. A. Karaghool, W. Alabdraba
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Abstract

In this study, municipal wastewater treatment plant (WWTP) in AL-Dhibaei, Tikrit, Iraq was monitored over a period of one year. The data of raw sewage, which enter WWTP and treated sewage were obtained and investigated. To assess the operational performance of WWTP, the necessary pollutant indicators including biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), and dissolved phosphorus (PO4), were examined. The treatment plant reliability factor (RF) was determined in order to indicate an individual pollutant in the effluent sewage according to the permissible concentrations identified by the Iraqi Ministry of Health and Environment. RF values for BOD, COD, and PO4 were 0.56, 0.82, and 0.4, respectively, which indicated proper performance since RF values below 1. In addition, the removal efficiency for (BOD, COD, and PO4), exceeded the minimum required reduction; 43.75, 18.25, and 60.5, respectively. In addition, the stability of mixed liquor volatile suspended solids (MLVSS) to mixed liquor suspended solids (MLSS) ratio was determined and its variation was in the range of 0.565-1.225, indicating a proper performance. The sludge volume index (SVI) values were below 50 mg L-1 and its range (5.68 – 27.27 mg L-1), which was associated with efficient treatment interpretations at most of the time.
伊拉克AL-Dhibaei城市污水处理厂的效率评估
在本研究中,对伊拉克提克里特AL-Dhibaei的城市污水处理厂进行了为期一年的监测。对进入污水处理厂的原污水和处理后的污水进行了数据采集和调查。通过生化需氧量(BOD)、化学需氧量(COD)、总悬浮固体(TSS)和溶解磷(PO4)等污染物指标的检测,评价污水处理厂的运行性能。根据伊拉克卫生和环境部确定的允许浓度,确定了处理厂可靠性系数,以便在污水中指出一种单独的污染物。BOD、COD和PO4的RF值分别为0.56、0.82和0.4,由于RF值小于1,表明性能良好。此外,对BOD、COD和PO4的去除率均超过了最低要求;43.75、18.25和60.5。此外,测定了混合液挥发性悬浮固体(MLVSS)与混合液悬浮固体(MLSS)之比的稳定性,其变化范围为0.565 ~ 1.225,性能良好。污泥体积指数(SVI)值低于50 mg L-1及其范围(5.68 ~ 27.27 mg L-1),在大多数情况下与有效的处理解释相关。
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来源期刊
caspian journal of environmental sciences
caspian journal of environmental sciences Environmental Science-Environmental Science (all)
CiteScore
2.30
自引率
0.00%
发文量
0
审稿时长
5 weeks
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