| 进水比例对水解反应器出水水质的影响研究 |
| 摘要点击 1737 全文点击 2199 投稿时间：2012-01-16 修订日期：2012-05-15 |
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| 中文关键词 进水比例 水解 可生化性 出水水质 VFA |
| 英文关键词 input water ratio hydrolysis biodegradability the quality of effluent water VFA |
| 作者 | 单位 | E-mail | | 梁康强 | 北京市环境保护科学研究院,北京 100037
国家城市环境污染控制工程技术研究中心,北京 100037 | liangkangqiang010@foxmail.com | | 熊娅 | 北京市环境保护科学研究院,北京 100037
国家城市环境污染控制工程技术研究中心,北京 100037 | | | 戚茂荣 | 华中科技大学环境学院,武汉 430074 | | | 林秀军 | 北京市环境保护科学研究院,北京 100037
国家城市环境污染控制工程技术研究中心,北京 100037 | | | 朱民 | 北京市环境保护科学研究院,北京 100037
国家城市环境污染控制工程技术研究中心,北京 100037 | | | 宋英豪 | 北京市环境保护科学研究院,北京 100037
国家城市环境污染控制工程技术研究中心,北京 100037 | |
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| 中文摘要 |
| 针对城镇污水处理厂进水SS/BOD偏高、C/N比偏低的问题,通过对现有水解池结构进行改造,设置两层布水器,两层布水器之间形成污泥水解区,以强化污泥水解,改善出水水质. 试验通过改变上下层布水器进水比例,力求最佳进水比例,使水解反应器起到初沉池作用的同时要提高废水的可生化性,以指导此类水解反应器的大规模应用. 结果表明,4种进水比例均对COD和SS去除有不同的去除效果,但进水比例为1∶1较其他3种进水比例能够大幅提高出水中SCOD/COD比值和挥发性脂肪酸(VFA)浓度. 以改善出水可生化性为原则,进水比例为1∶1时为最佳进水比例,即底部布水器进水50%,上层布水器处进水50%,既能为后续处理减少COD和SS的处理负担,又能提高出水的可生化性. |
| 英文摘要 |
| Based on high SS/BOD and low C/N ratio of waste water of municipal wastewater treatment plant, the structure of currently existing hydrolysis reactor was reformed to improve the influent quality. In order to strengthen the sludge hydrolysis and improve effluent water quality, two layers water distributors were set up so that the sludge hydrolysis zone was formed between the two layers distribution. For the purpose of the hydrolysis reactor not only plays the role of the primary sedimentation tank but also improves the effluent water biodegradability, input water ratios of the upper and lower water distributor in the experiment were changed to get the best input water ratio to guide the large-scale application of this sort hydrolysis reactor. Results show, four kinds of input water ratio have varying degrees COD and SS removal efficiency, however,input water ratio for 1∶1 can substantially increase SCOD/COD ratio and VFA concentration of effluent water compared with the other three input water ratios. To improve the effluent biodegradability,input water ratio for 1∶1 was chosen for the best input water ratio. That was the ratio of flow of upper distributor was 50%, and the ratio of the lower one was 50%, at this case it can reduce the processing burden of COD and SS for follow-up treatment, but also improve the biodegradability of the effluent. |
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