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Evaluation of sequencing batch reactor performance for petrochemical wastewater treatment

机译:排序间歇反应器在石化废水处理中的性能评估

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Sequencing batch reactor (SBR) technology has found many applications in industrial wastewater treatment in recent years. The aim of this study was to determine the optimal time for a cycle of the sequencing batch reactor (SBR) and evaluate the performance of a SBR for petrochemical wastewater treatment in that cycle time. The reactor was operated with a suspended biomass configuration under aerobic conditions. Carbon removal and operating parameters such as pH, temperature and dissolved oxygen (DO) were monitored during the wastewater treatment. The SBR was run at different cycle times and amongst the cycle times tested, the best performance was obtained with a 7 h cycle time composed of a fill time of 15min, reaction of 6 h, settling of 30 min, and withdrawal of 15 min. The SBR with the determined cycle time was used to study the treatment of wastewater with various organic loading rates (12.88 gr COD/L.d, 18.02 gr COD/L.d and 31.39 gr COD/L.d). The SBR performance was evaluated by chemical oxygen demand (COD), total solids (TS) total suspended solids (TSS) removal efficiencies. During the shock loading tests, the maximum COD, TS and TSS removal efficiencies were 84%, 67% and 92%, respectively.
机译:测序间歇反应器(SBR)技术近年来在工业废水处理中发现了许多应用。这项研究的目的是确定顺序批处理反应器(SBR)循环的最佳时间,并在该循环时间内评估SBR在石化废水处理中的性能。反应器在有氧条件下以悬浮的生物质配置运行。在废水处理过程中,对除碳量和运行参数(例如pH值,温度和溶解氧(DO))进行了监控。 SBR在不同的循环时间下运行,在测试的循环时间中,以7小时的循环时间获得最佳性能,该循环时间由15分钟的填充时间,6小时的反应,30分钟的沉降和15分钟的退出组成。具有确定循环时间的SBR用于研究各种有机负荷率(12.88 gr COD / L.d,18.02 gr COD / L.d和31.39 gr COD / L.d)的废水的处理。通过化学需氧量(COD),总固体(TS),总悬浮固体(TSS)去除效率来评估SBR性能。在冲击载荷测试中,最大的COD,TS和TSS去除效率分别为84%,67%和92%。

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