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笔者结合当前污泥实际情况及污水处理厂污泥处理现状分析,阐述了污水处理厂污泥处理处置技术、污泥处理难点及完善污泥处置的标准、对加大污泥处理技术和管理提出相应的建议. 相似文献
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随着污泥处理处置标准的提高,为解决杭州七格污水处理厂污泥处理处置问题,对七格污水处理厂的污泥进行了试验,其中包括污泥的元素分析、工业分析,结合中国科学院工程热物理研究所完成的污泥直接焚烧燃烧、排放特性试验,七格污水处理厂建立了100 t/d的污泥循环流化床一体化污泥焚烧示范工程.通过示范工程进行技术、经济分析,为七格污水处理厂污泥干化焚烧工程提供了科学决策的依据. 相似文献
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《建设科技(建设部)》2009,(6)
为推动城镇污水处理厂污泥处理处置技术进步.明确城镇污水处理厂污泥处理处置技术发展方向和技术原则.指导各地开展城镇污水处理厂污泥处理处置技术研发和推广应用,促进工程建设和运行管理.避免二次污染,保护和改善生态环境.促进节能减排和污泥资源化利用,住房和城乡建设部、环境保护部和科学技术部联合制定了《城镇污水处理厂污泥处理处置及污染防治技术政策(试行)》.近日发布。 相似文献
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李胜海 《建设科技(建设部)》2009,(19):54-56
随着城镇污水处理厂建设和运营,其污水处理厂的污泥处理处置凸显出它存在的问题,已直接影响污水处理厂的正常运行,迫切解决污泥处理处置问题是当前各个污水处理厂普遍存在的难点和热点。 相似文献
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为推动城镇污水处理厂污泥处理处置技术进步,明确城镇污水处理厂污泥处理处置技术发展方向和技术原则,指导各地开展 相似文献
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针对太原市杨家堡污水净化厂污泥处理系统出现的问题进行了分析,并对污泥进泥及溢流问题、脱水机房问题、污泥处理系统自控问题提出了相应的改造方案,对杨家堡污水净化厂污泥的彻底处理提供了理论依据。 相似文献
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以太原市城南污水处理厂为例,介绍了该污水处理厂的污水处理流程及所采用的改良AAO生物处理工艺,通过采用直接培养活性污泥的方法,对城南污水处理厂的污泥进行了培养驯化,并针对调试过程中出现的问题提出了相应的解决措施,以达到净化污水水质的目的。 相似文献
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对山西省污水处理厂的污泥处理存在的疑难问题及关键性技术进行了分析,着重对污泥燃料化技术降低污泥含水率、提高热值,实现污泥资源化利用的技术内容进行了描述,提出了以污泥燃料化作为污泥综合利用技术路线的结论。 相似文献
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结合工作实际,对比国内外污泥处理的先进经验,对几种处置方法进行了列举分析,并通过优缺点比较,提出了城市污水厂污泥处置与利用的最佳方案,以减少污泥造成的环境污染。 相似文献
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Concentrations of lead, cadmium and copper have been determined in the sewage sludges, sewages and effluent of a sewage treatment works. Treatment at this works is by primary sedimentation prior to biological treatment in a diffused air activated sludge plant. By analysis of composite samples corresponding to a 24-h input of raw sewage to the works, a mass balance of metals through the works has been estimated. The partition of the metals from raw sewage into the settled sewage and primary sludge, and from the settled sewage into the activated sludge and final effluent has been quantified. 相似文献
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Distribution of polychlorinated biphenyls (PCB) in sewage wastes at a municipal sewage treatment plant was studied, showing that the great bulk of PCBs entering such a treatment plant become adsorbed onto the grit chamber solids and the sludge that is passed from the anaerobic digesters. When appreciable quantities of PCBs are present in sewage, as was the case in this study, significant quantities can nevertheless pass with the effluents discharged from the treatment plant. The PCB concentrations in the treatment plant waters undergoing secondary and tertiary treatment tend to be consistent with the limited solubility properties of the PCBs. However, appreciably higher concentrations can be found in the sediments of waters receiving treatment plant discharges and bioaccumulation in fish is demonstrated readily. Also described are quantitative data on PCBs in soils fertilized with PCB-contaminated sludge. 相似文献
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介绍了某污水处理厂的建筑设计,阐述了该污水厂的污水处理区、污泥处理区和生产辅助区的布置,分析了污水处理工艺对建筑的影响,探讨了该厂区的规划建筑特色,积累了污水处理厂的建筑设计经验。 相似文献
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针对福建省污水处理工作进程中存在的建设及运营管理上的问题,本文提出捆绑式招商、分级式、分散式建设三种方式加快污水处理厂的建设步伐;提出加强对建成污水处理厂运行管理的相关对策;并就污泥的合理处置提出方案。 相似文献
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Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in sewage treatment plants 总被引:3,自引:0,他引:3
In this study, the concentrations of PFOS and PFOA in the biological units of various full-scale municipal sewage treatment plants were measured. Samples of influent, primary effluent, aeration tank effluent, final effluent and grab samples of primary, activated, secondary and anaerobically digested sludge were collected by 5 sampling events over one year. The two sewage treatment plants (STPs) selected for this study include plant A receiving 95% domestic wastewater and plant B receiving 60% industrial wastewater and 40% domestic wastewater. PFOS and PFOA were observed at higher concentration in aqueous and sludge samples in plant B than that of plant A. Mass flow of PFOS increased significantly (mean 94.6%) in conventional activated sludge process (CAS) of plant B, while it remained consistent after the secondary treatment in plant A. Mass flow of PFOA increased 41.6% (mean) in CAS of plants A and B and 76.6% in membrane biological reactor (MBR), while it remained unchanged after the treatment of liquid treatment module (LTM). Our results suggest that mass flow of these two compounds remains consistent after treatment of activated sludge process operating at short sludge retention time (SRT). Seasonal variations of PFOS in concentrations of raw sewage were found in plant A, while PFOA did not have significant seasonal variation in both plants A and B. 相似文献