Al-Shididi S, Henze M, Ujang Z
Environment and Resources, Technical University of Denmark, Bygningstorvet, Building 115, DK-2800 Kgs. Lyngby, Denmark.
Water Sci Technol. 2003;48(11-12):327-35.
The objective of this study was to assess the feasibility of the Sequencing Batch Reactor (SBR) system for implementation in Malaysia. Theoretical, field, laboratory investigations, and modelling simulations have been carried out. The results of the study indicated that the SBR system was robust, relatively cost-effective, and efficient under Malaysian conditions. However, the SBR system requires highly skilled operators and continuous monitoring. This paper also attempted to identify operating conditions for the SBR system, which optimise both the removal efficiencies and the removal rates. The removal efficiencies could reach 90-96% for COD, up to 92% for TN, and 95% for SS. An approach to estimate a full operational cycle time, to estimate the de-sludging rate, and to control the biomass in the sludge has also been developed. About 4 hours react time was obtained, as 2.25 hours of nitrification with aerated slow fill and 1.75 hour of denitrification with HAc addition as an additional carbon source. Inefficient settling was one of the problems that affect the SBR effluent quality. The settling time was one hour for achieving Standard B (effluent quality) and 2 hours for Standard A.
本研究的目的是评估序批式反应器（SBR）系统在马来西亚实施的可行性。已开展了理论、现场、实验室调查及建模模拟。研究结果表明，在马来西亚条件下，SBR系统稳健、相对具有成本效益且高效。然而，SBR系统需要高技能操作人员及持续监测。本文还试图确定SBR系统的运行条件，以优化去除效率和去除率。化学需氧量（COD）的去除效率可达90 - 96%，总氮（TN）可达92%，悬浮物（SS）可达95%。还开发了一种估算完整运行周期时间、估算排泥速率及控制污泥中生物质的方法。获得了约4小时的反应时间，其中曝气缓慢进水硝化时间为2.25小时，添加乙酸（HAc）作为额外碳源进行反硝化的时间为1.75小时。沉降效率低是影响SBR出水水质的问题之一。达到B标准（出水水质）的沉降时间为1小时，达到A标准的沉降时间为2小时。
