一体化两级厌氧-好氧序批式反应器处理污水的性能

M. I. A. Isma, R. Ashvini, M. Munira
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摘要

以10l SBR反应器为研究对象,每天运行2个循环,总循环时间为500分钟。本研究探讨了300分钟的反应周期,从120分钟到30分钟交替进行两个阶段的缺氧-好氧阶段,对出水质量、污泥沉降性和粒度分布的影响。对COD、TSS和NH4-N的总去除率分别为93.8%、98.4%和85.9%。结果表明,前2h缺氧/1.5 h好氧处理效果良好,COD、NH4-N和TSS的去除率分别为66.0%、78.5%和59.4%。虽然缺氧时间延长了1 h,但NH4-N的去除率较低,为4.5%,随后的第二好氧阶段去除率为7.2%,但NH4-N的去除率并未提高。在35天的运行期内,污泥的粒径从117.743μm增加到127.310μm。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PERFORMANCE OF INTEGRATED TWO STAGE ANOXIC-AEROBIC SEQUENCING BATCH REACTOR IN THE TREATMENT OF SEWAGE
A 10 L SBR reactor was operated on a two cycles per day with total cycle time of 500 minutes. This study explored the impact of a 300 minute react period with alternating two stage anoxic-aerobic phases starting at 120 minutes to 30 minutes on effluent quality, sludge settleability and particle size distribution.The overall removal efficiencies for COD,  TSS and NH4-N were 93.8%, 98.4 % and 85.9%, respectively. The results indicated a good process performance with the first 2h anoxic/1.5 h aerobic period with removals of 66.0%, 78.5% and 59.4 % for COD, NH4-N and TSS removal respectively.The NH4-N removal was not enhanced although the anoxic period was lengthened by 1 h with low removal of 4.5 % and subsequent 7.2% of the second aerobic phase. There was an increase in the particle size of the sludge from 117.743μm to 127.310μm over an  operating period of 35 days.
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