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首页> 外文期刊>International Journal of Microbiology >Removal of Total Coliforms, Thermotolerant Coliforms, and Helminth Eggs in Swine Production Wastewater Treated in Anaerobic and Aerobic Reactors
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Removal of Total Coliforms, Thermotolerant Coliforms, and Helminth Eggs in Swine Production Wastewater Treated in Anaerobic and Aerobic Reactors

机译：厌氧和好氧反应器处理后的猪生产废水中总大肠菌，耐热大肠菌和蠕虫卵的去除

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摘要

The present work evaluated the performance of two treatment systems in reducing indicators of biological contamination in swine production wastewater. System I consisted of two upflow anaerobic sludge blanket (UASB) reactors, with 510 and 209 L in volume, being serially arranged. System II consisted of a UASB reactor, anaerobic filter, trickling filter, and decanter, being also organized in series, with volumes of 300, 190, 250, and 150 L, respectively. Hydraulic retention times (HRT) applied in the first UASB reactors were 40, 30, 20, and 11 h in systems I and II. The average removal efficiencies of total and thermotolerant coliforms in system I were 92.92% to 99.50% and 94.29% to 99.56%, respectively, and increased in system II to 99.45% to 99.91% and 99.52% to 99.93%, respectively. Average removal rates of helminth eggs in system I were 96.44% to 99.11%, reaching 100% as in system II. In reactor sludge, the counts of total and thermotolerant coliforms ranged between 105and 109 MPN (100 mL)−1, while helminth eggs ranged from 0.86 to 9.27 eggs g−1 TS.
机译：本工作评估了两种处理系统在减少生猪废水中生物污染指标方面的性能。系统I由两个上流式厌氧污泥层反应器（UASB）组成，依次排列，分别容积为510和209L。系统II由UASB反应器，厌氧过滤器，滴滤器和de析器组成，它们也分别串联排列，容积分别为300、190、250和150μL。在系统I和II中，首批UASB反应堆中的水力停留时间（HRT）为40、30、20和11，h。系统I中总大肠菌群和耐热大肠菌群的平均去除效率分别为92.92％至99.50％和94.29％至99.56％，系统II中的平均去除效率分别为99.45％至99.91％和99.52％至99.93％。在系统I中，蠕虫卵的平均去除率为96.44％至99.11％，与系统II中一样，达到100％。在反应器污泥中，总的和耐热的大肠菌群的数量在105至109 MPN（100 mL）-1之间，而蠕虫卵的范围从0.86至9.27 eggs g-1 TS。

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