多模式A~2O及污泥好氧发酵用于汉西污水处理厂改扩建

发布时间：2017-12-31 03:09

本文关键词：多模式A~2O及污泥好氧发酵用于汉西污水处理厂改扩建　出处：《中国给水排水》2017年16期 　论文类型：期刊论文

【摘要】：汉西污水处理厂一期工程规模为40×10~4m~3/d,出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)二级标准,原采用A/O(厌氧/好氧)生物处理工艺。改扩建工程总规模为60×10~4m~3/d,出水水质提升为一级B标准。对一期工程采用降规模(34×10~4m~3/d)运行方式以达到提标要求,同步实施二期扩建工程(26×10~4m~3/d),一、二期污水处理均采用多模式A~2O工艺。试运行结果表明,出水水质优于一级B标准。污水厂污泥处理工程设计规模为325 t/d,采用CTB智能控制好氧发酵技术,发酵周期为20 d;发酵过程采用鼓风机曝气为主、匀翻机匀翻后熟为辅的供氧方式;发酵后的成品作为园林绿化介质土和林地土壤改良剂进行资源化利用。
[Abstract]:The first stage of the Hanxi sewage treatment Plant is 40 脳 10 ~ 4 m ~ (-1) / d, and the effluent quality is in accordance with the "discharge Standard of pollutants in Urban sewage treatment Plant" (GB 18918-2002). The original A- / O (anaerobic / aerobic) biological treatment process was used. The total scale of the reconstruction and extension project was 60 脳 10 ~ (4) m ~ (-1) m ~ (3 / d). The effluent quality is upgraded to the first B standard. The operation mode of the first stage project is reduced to 34 脳 10 ~ 4 mm ~ (3 / d) in order to meet the requirement of raising the standard. At the same time, 26 脳 10 ~ 4 m ~ (-1) m ~ (-1) / d ~ (3 / d) of the second phase expansion project was carried out. In the first and second stage of sewage treatment, the multi-mode Ani-2O process was adopted. The effluent quality is better than the first class B standard. The design scale of sewage sludge treatment project is 325t / d. The aerobic fermentation technology is controlled by CTB intelligently, and the fermentation period is 20 days. In the fermentation process, blower aeration was used as the main method, and the leveling machine was used as the auxiliary oxygen supply. The fermented product was used as the medium soil and soil modifier for landscape and forest land.
【作者单位】：武汉市政工程设计研究院有限责任公司;
【分类号】：X703
【正文快照】： 1工程概况汉西污水处理厂为目前武汉市规模最大的污水处理厂,于2006年9月投入运行,现状规模为40×104m3/d,出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)二级标准。随着城市快速发展,根据规划和环保要求,该污水厂出水应在2016年底达到一级B排放标准,同时应同

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