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2021-05-17
污水处理厂—生物除臭
随着经济全球化和城市化进程的加快,生态环境在城市经济社会发展中的地位和作用日益凸现,良好和谐的环境已成为一个城市参与国际竞争的重要力量,成为一个城市的国际形象的主导因素之一。鉴于恶臭污染的公害性,恶臭污染防治的研究日益活跃。同时,随着工业化和城市化的进程的不断加快,以及国家绿色GDP概念的不断深入,城市污水处理进入空前的加速发展时期。
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污水处理厂—生物除臭
Date﹕2021-05-17|Source:Eclear Environmental

随着经济全球化和城市化进程的加快,生态环境在城市经济社会发展中的地位和作用日益凸现,良好和谐的环境已成为一个城市参与国际竞争的重要力量,成为一个城市的国际形象的主导因素之一。鉴于恶臭污染的公害性,恶臭污染防治的研究日益活跃。同时,随着工业化和城市化的进程的不断加快,以及国家绿色GDP概念的不断深入,城市污水处理进入空前的加速发展时期。

污水处理厂—生物除臭

污水处理厂恶臭污染调查

污水在污水厂的各个处理单元都会产生臭味,如进水格栅、曝气沉砂池、曝气池、污泥浓缩池及贮泥池等工序,但进水部分(格栅间)和污泥处理部分(贮泥池、脱水机房)的恶臭尤为严重。例如,在进水格栅处,由于栅渣中的有机成份高达85%,即使很少的栅渣腐烂,也能在较大空问内产生强烈的恶臭。这主要是由于污水在长途输送过程中腐化,产生的硫化氢和氨气、甲硫醇等恶臭气体,在污水输送处理中,经过长距离的管网输送,进入泵站、粗格栅、细格栅等构筑物,由于水流湍动剧烈,使其从污水中散逸出来。当污水进入沉淀单元时,恶臭在初沉池的进水廊道、出水廊道等水流湍动处也会产生。由于初沉池的水流主体是相当平稳的,仅有少量的恶臭排放,但污水处理厂经常在低于设计流量下运行,污泥在初沉池泥斗停留时间过长,从而导致硫化物的产生而影响其它处理单元。

生化处理单元的曝气过程常常伴随着恶臭问题,这一阶段产生的恶臭强度虽然比前两阶段弱,但如果曝气不足,在流量过高时就会出现厌氧区而产生H2SNH3和硫醇等恶臭气体。在污泥处理阶段,由于污泥中污染物浓度大,产生的恶臭强度也非常大。进行污泥浓缩、脱水处置时,使用压滤和化学絮凝剂都可能引起湍动并释放恶臭气体,使用带式压滤机和重力压滤机时尤为突出,这也是国内污水处理厂普遍面临的问题。

污水处理厂—生物除臭

上海羿清环保是一家专注于生物除臭的环保公司,其生产的生物滤池除臭设备能够有效处理臭气中的有害物质,高度净化臭气。

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