共查询到18条相似文献,搜索用时 78 毫秒
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针对污水处理厂的节能减排要求,建立了能够突出节能降耗目标的污水处理厂绩效评估体系.该体系由稳定达标、节能降耗和优化运行3个维度,污水处理、污泥处理、单位能耗、单元能耗、单元物耗、资源回收利用、单位成本、自动化控制水平、设备运行等9个一级指标和16个二级指标构成.研究提出了定量指标的计算方法和定性指标的打分方法,并采用全国污水处理厂数据统计分析、文献调研、专家咨询等方法给出了计算所需的标准值、修正系数、打分等级.将该体系应用于3座污水处理厂,结果表明该体系能够用于实际污水处理厂的评价,引入绩效评估体系有助于污水处理厂了解自身节能降耗的潜力和途径. 相似文献
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根据七格污水处理厂三期工程初沉池的实际运行数据,分析了初沉池对于去除污水中污染物所起的作用。同时通过对比试验,考察初沉池的运行对出水水质的影响,并分析其运行条件,提出了经济有效的初沉池运行方式。 相似文献
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上海市白龙港污水处理厂经升级改造和扩建后,以多模式A~2/O生物处理为主体(设计规模140万m~3/d),一级强化处理为辅(设计规模60万m~3/d),现状出水执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)二级标准。目前,白龙港污水处理厂可能将再次面临升级改造,出水提标至一级B标准。统计分析了污水处理厂稳定运行期间的进、出水水量和水质变化数据,研究该厂水量和水质的分布特征,分析了提标改造的水质达标难度及主要影响因素,并提出了相应的技术和工艺改造建议,以期为升级改造工程设计提供参考。 相似文献
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污水处理厂污泥厌氧消化优化设计与运行探讨 总被引:1,自引:0,他引:1
对国内典型的污水处理厂污泥厌氧消化系统进行调研发现,厌氧消化系统的运行管理尚存在诸多问题。在总结白龙港污水处理厂污泥厌氧消化调试与运行管理经验的基础上,针对厌氧消化工艺存在的普遍性问题,提出了厌氧消化系统设计和运行管理方面的建议,以促进工艺设计优化,提高运行管理水平。 相似文献
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Environmental legislations in the Western world impose stringent effluent quality standards for ultimate protection of the environment. This is also observed in Turkey. The current paper presents efforts made to simulate an existing 0.77 million m3/day conventional activated sludge plant located at Ankara, AWTP. The ASM1 model was used for simulation in this study. The model contains numerous stoichiometric and kinetic parameters, some of which need to be determined on case by case bases. The easily degradable COD (S(S)) was determined by two methods, physical-chemical and respirometric methods, namely. The latter method was deemed unreliable and rejected in the further study. Dynamic simulation with SSSP program predicted effluent COD and MLSS values successfully while overestimating OUR. A complete fit could only be obtained by introducing a dimensionless correction factor (etaO2 = 0.58) to the oxygen term in ASM1. 相似文献
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城市污水处理厂鼓风机房节能潜力分析 总被引:1,自引:0,他引:1
在城市污水处理厂能耗结构中,鼓风机房权重约为50%,并且由于技术和管理水平的限制,鼓风机房存在着严重的电能浪费问题。以某采用改良A2/O工艺的城市污水处理厂工程为例,通过鼓风机房单位水量电耗与生物系统单位水量需氧量的比较,对2009年12个月鼓风机房的节能潜力进行了分析。结果表明,鼓风机房单位水量电耗和好氧池需氧量随月份的变化趋势并不一致,其年均节能潜力为62%;仅通过鼓风机房的节能,污水处理厂的年均节能潜力就能达到27.2%,污水处理单耗就能由0.219 kW.h/m3降低到0.159 kW.h/m3,可节约运行费用110.885 8万元/a。 相似文献
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B Han J Kim Y Kim J S Choi I E Makarov A V Ponomarev 《Water science and technology》2005,52(10-11):317-324
A pilot plant for treating 1000 m3/day of dyeing wastewater with e-beam has been constructed and operated since 1998 in Daegu, Korea together with the biological treatment facility. The wastewater from various stages of the existing purification process has been treated with an electron beam in this plant, and it gave rise to elaborating the optimal technology of the electron beam treatment of wastewater with increased reliability for instant changes in the composition of wastewater. Installation of the e-beam pilot plant resulted in decolorizing and destructive oxidation of organic impurities in wastewater, appreciable reduction of chemical reagent consumption, in reduction of the treatment time, and in increase in the flow rate limit of existing facilities by 30-40%. Industrial plant for treating 10,000 m3/day each, based upon the pilot experimental result, is under construction and will be finished by 2005. This project is supported by the International Atomic Energy Agency (IAEA) and Korean Government. 相似文献
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改良型Orbal氧化沟通过设置厌氧池和内回流系统强化了除磷功能,稳定了脱氮效果;通过设置浮渣溢流堰,解决了外沟浮渣聚集问题。介绍了天长市污水处理厂改良型Orbal氧化沟的设计及运行情况,并对运行过程中出现的问题进行分析探讨。 相似文献
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A survey has been carried out involving 55 Hungarian wastewater treatment plants in order to evaluate the wastewater quality, the applied technologies and the resultant problems. Characteristically the treatment temperature is very wide-ranging from less than 10 °C to higher than 26 °C. Influent quality proved to be very variable regarding both the organic matter (typical COD concentration range 600-1,200 mg l(-1)) and the nitrogen content (typical NH(4)-N concentration range 40-80 mg l(-1)). As a consequence, significant differences have been found in the carbon availability for denitrification from site to site. Forty two percent of the influents proved to lack an appropriate carbon source. As a consequence of carbon deficiency as well as technologies designed and/or operated with non-efficient denitrification, rising sludge in the secondary clarifiers typically occurs especially in summer. In case studies, application of intermittent aeration, low DO reactors, biofilters and anammox processes have been evaluated, as different biological nitrogen removal technologies. With low carbon source availability, favoring denitrification over enhanced biological phosphorus removal has led to an improved nitrogen removal. 相似文献
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生物膜法在污水处理中的研究进展 总被引:4,自引:0,他引:4
生物膜法在污水处理工艺中是与活性污泥法并行的一种好氧型生物污水处理方法,广泛的应用于工业废水和城市污水处理的二级处理中,也是污水处理的关键环节。与活性污泥法相比,生物膜法具有一些特有优势。比如无需污泥回流,运行管理容易,无污泥膨胀问题,易于微生物生存,运行稳定等。文中简单介绍了生物膜法对磷、氮及一些重金属去除的研究进展。 相似文献