共查询到20条相似文献,搜索用时 187 毫秒
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污泥燃料化发电可行性探讨 总被引:1,自引:0,他引:1
介绍了污泥的干化焚烧、污泥低温热解(低温热化学转化(热解)、污泥制氢和污泥改质等污泥燃料化技术.分析了污泥干化焚烧发电的可行性,指出干化焚烧发电技术是一种可行的污泥处理技术,得出了污泥发电可以通过技术整合,实现污泥处理的高效化的结论. 相似文献
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根据北京市城市污水处理厂污泥化学成分情况,结合国内外污泥处理处置的经验,分析了北京市城市污水处理厂污泥处理处置的现状和发展趋势以及存在的问题,初步探讨了北京市城市污水处理厂污泥处理处置技术,提出了北京市城市污水处理厂污泥处理处置的技术路线,在污泥土地利用、污泥制肥和污泥干化焚烧等方面进行了探讨,并提出了今后的建议。 相似文献
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给水厂污泥的干化场处理 总被引:2,自引:0,他引:2
总结讨论了水厂污泥干化场处理的运行过程和影响因素,干化场的设计方法和优化管理理论。在评价干化场的特点与发展动向的基础上,提出对我国一些地区的水厂污泥处理,干化场是一项值得重视的经济实用技术。 相似文献
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一直以来,日本高度重视污泥的资源化利用,并将考核指标更改为生物质循环利用率,同时对下水道重新定义,这对今后日本污泥处理处置的技术路线产生很大的影响.在介绍日本污泥处理处置现状的基础上,重点介绍在日本广泛应用的回转式污泥干化和焚烧装置.日本污泥处理处置的思路、经验和相关设备对我国污泥处理处置技术路线的选择和干化焚烧设备选择有较好的借鉴意义. 相似文献
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给水厂污泥减量化及性能改善研究 总被引:2,自引:1,他引:1
随着给水厂排泥水直排河道的方法不再可行,水处理过程中产生的污泥量和污泥性能将直接影响整个水厂的造价及运行费用。试验在水处理工艺流程相同的条件下,分别投加硫酸铝、氯化铁、聚铝(PAC)、聚铁(PFS)、聚铝铁(PAFC)、高效聚双酸铝铁(PAFCS)等不同混凝剂,以达到减少絮凝沉淀后排泥水的污泥量及改善排泥水的沉降和脱水性能的效果,并探讨了其作用机理。 相似文献
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通过对净水厂生产排泥水的产生和水质特性进行分析,确定沉淀池排泥水和滤池反冲洗废水为净水厂排泥水的主要组成,结合设计干泥量的计算确定排泥水处理规模,在分析排泥水处理系统工艺流程布置特点的基础上对排泥水收集、调节、浓缩和脱水工艺进行分析,并对其中排水池、排泥池、浓缩池、平衡池、脱水工艺和场地布置的设计要点进行总结。 相似文献
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EcoDry污泥干燥技术在欧洲的应用 总被引:1,自引:0,他引:1
EcoDry工艺是一种以污泥粒渣为燃料的新型污泥干燥技术,分析了该工艺的原理、特性、优缺点,着重介绍其在德国Obrigheim污水处理厂和匈牙利Pecs污水处理厂扩建工程中的应用,并对运行结果和排放标准进行了比较.研究结果表明,EcoDry工艺的干污泥和废气排放符合欧盟标准,可以为我国新建、扩建现有污泥干燥处置系统提供参考. 相似文献
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武汉市污水污泥处理与处置规划介绍 总被引:1,自引:0,他引:1
随着城市化进程加快和市政污水系统的完善,污水污泥处理与处置问题越来越突出。首先对武汉市污水污泥处理处置现状进行介绍和分析,然后预测了武汉市2010年和2020年污水污泥量,接着在此基础上确定武汉市污水污泥处理厂布局方案和处理处置工艺,最后针对污泥规划的实施和管理提出建议。 相似文献
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The sludge generated by sewage treatment which meets regulatory standards can be used in agriculture. With this understanding, the focus of this study is the evaluation of the agricultural characteristics and inorganic substances in excess activated sludge, which was subjected to drying in a greenhouse. The variables (factor) evaluated during the drying process were: type of sludge (digested or not digested), addition of lime to the sludge, and the physical layout and rotation of sludge in the greenhouse. The parameters monitored for this assessment were moisture, volatile solids and pH. The greenhouse cover and sides were made of translucent plastic to allow the penetration of solar radiation and prevent water from entering. A impermeable floor was used. The sludge was generated in sewage treatment plants located in the metropolitan region of Grande Vitória, Espírito Santo, Brazil. The solar drying of wastewater sludge in a greenhouse presented satisfactory results. 相似文献
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The Regional Wastewater Treatment Plant of North Jaeren (IVAR IKS) serves the Stavanger conurbation with a population equivalence of 240,000. The site was the first in Norway to operate a thermal drying and a pelletising plant for municipal sludge. Since the start up in 1992, IVAR has encountered most of the operational problems typically associated with thermal drying processes. Considerable modifications have been made and lessons learnt resulting in the plant being one of the few thermal drying facilities in Norway which continues to operate successfully. In general, thermal drying is often considered as a costly, energy demanding and complex process requiring careful attention to safety aspects such as risks of self-combustion, fires and dust explosions. The paper presents general considerations of operating experiences influencing the procurement and design stage of the new extended IVAR thermal drying plant. Furthermore, topical issues important for resolution of thermal drying problems are also discussed. Mass and energy balances for the Stavanger plant are presented. 相似文献