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二妃山垃圾卫生填埋场防渗体系的设置与渗沥液的收集处理 总被引:1,自引:0,他引:1
介绍了二妃山垃圾卫生填埋场雨污分流系统和填埋库区防渗体系,并设计了对垃圾渗沥液和其他污水进行集中收集处理的工艺流程,可供类似垃圾卫生填埋场参考和借鉴。 相似文献
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随着生态城市的建设对城市环境提出了新的挑战,环境问题与人们的生活密不可分,其中生活垃圾填埋问题不可忽视,现在许多旧的垃圾填埋场服务年限较长,因此填埋场应急库区的新建势在必行,我们以漳州某生活垃圾填埋场为实例,进行生活垃圾填埋场应急库区工程方案设计,根据现有地形地势以及库容的需要,合理设计坝体位置、高度及其他相关参数,防止渗滤液对地下水的污染,有效进行雨污分流,实现与现有填埋场的设计完美结合。 相似文献
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生活垃圾卫生填埋场中,垃圾渗滤液是一种高浓度的有机废水,它在垃圾填埋过程中,由于厌氧发酵,有机物分解,淋雨等原因,其组成复杂,水质和水量变化时间长短很大,是垃圾填埋场的主要来源,如果直接排放,处理不当将对环境造成严重的二次破坏。基于此,本文主要论述了生活垃圾卫生填埋场渗滤液控制与处理方案相关知识。 相似文献
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城市发展中排水系统是不可缺少的,其中雨污分流具有独立的排水管网,能分流变换污水雨水,优化城市排水系统,促进城市健康安全发展,也能有效提升排水系统的管理效率,在排水系统中具有重要的作用。首先分析城市排水系统的问题,其次概述排水系统雨污分流改造技术,再次分析旧城区排水系统雨污分流改造技术的重点和难点,最后分析城市排水系统雨污分流改造的措施,以供参考。 相似文献
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填埋场垃圾是放错了地方的资源,如果处理不当,不仅白白浪费可利用资源,还会造成严重的二次污染,失去卫生填埋的最初意义。介绍了垃圾卫生填埋场中常见的三种二次污染:水污染、空气污染和土壤污染。并从这三个方面入手提出了防止二次污染的的一系列建议和措施,以及相应的资源化处理。详细介绍了防止垃圾渗滤液渗漏的方法,垃圾填埋场防渗层的设计和材料选取、渗滤液的收集等,提出了国际上垃圾处理技术的今后发展的新趋势。 相似文献
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《Planning》2014,(22)
垃圾卫生填埋工艺因具有技术可靠、工艺简单、管理方便、适用范围广、处理最彻底等一系列优点得到较为广泛的应用。但产生的渗滤液处理难、费用高,成为抑制卫生填埋技术进一步发展的主要因素,成为垃圾处理的重点和难点。就此,本文对生活垃圾填埋场渗滤液处理技术作了简要分析,并提出垃圾填埋场渗滤液的有效处理措施。 相似文献
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在西北某大型填埋场边坡区域布设渗滤液水位、堆体表面位移和深层侧向位移监测点并开展现场监测。在2014年4月~8月间,受垃圾堆载、填埋作业机械动荷载和强降雨的影响,堆体边坡区域发生3次大范围滑移,最大滑移报警面积达30029 m2,最大日均表面位移253 mm,滑移深度达17 m。反分析该填埋场垃圾堆填边坡滑移全过程,掌握了除堆体水位和强降雨因素外,垃圾堆载、动荷载等因素作用下的堆体滑移规律。进一步分析迫降水位、分层压实、土工织物加固等措施的抗滑效果,结果表明,采取降水压实及土工织物加固措施可满足堆体后续堆填的稳定要求。 相似文献
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Leachates produced at the La Zoreda landfill in Asturias, Spain, were recirculated through a simulated landfill pilot plant. Prior to recirculation, three loads of different amounts of Municipal Solid Waste (MSW) were added to the plant, forming in this way consecutive layers. When anaerobic digestion was almost completed, the leachates from the landfill were recirculated. After recirculation, a new load of MSW was added and two new recirculations were carried out. The organic load of the three landfill leachates recirculated through the anaerobic pilot plant decreased from initial values of 5108, 3782 and 2560 mg/l to values of between 1500 and 1600 mg/l. Despite achieving reductions in the organic load of the leachate, a residual organic load still remained that was composed of non-biodegradable organic constituents such as humic substances. Similar values of the chemical oxygen demand (COD) were obtained when the landfill leachate was treated by a pressurised anoxic-aerobic process followed by ultrafiltration. After recirculation through the pilot plant, physico-chemical treatment was carried out to reduce the COD of the leachate. The pH of the leachate was decreased to a value of 1.5 to precipitate the humic fraction, obtaining a reduction in COD of about 13.5%. The supernatant liquid was treated with activated carbon and different resins, XAD-8, XAD-4 and IR-120. Activated carbon presented the highest adsorption capacities, obtaining COD values for the treated leachate in the order of 200mg/l. Similar results were obtained when treating with activated carbon, the leachate from the biological treatment plant at the La Zoreda landfill; in this case without decreasing the pH. 相似文献
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Geotechnical and hydrochemical properties of sewage sludge 总被引:1,自引:0,他引:1
Jonas Diliūnas Kastytis Dundulis Saulius Gadeikis Arūnas Jurevičius Mykolas Kaminskas 《Bulletin of Engineering Geology and the Environment》2010,69(4):575-582
The geotechnical and geochemical properties of sewage sludge from Kaunas city, Lithuania, were investigated to assess whether
it could form a low permeability landfill cover. New sludge, sludge stored or kept in the atmosphere and old sludge were studied.
It was found that over time the strength of the sewage sludge increased due to self-consolidation and destruction of organic
material. The concentration of metals in the sewage extract was considerably lower than in the landfill leachate. It was concluded
that if kept in an open polygon for 1–2 years, the sewage sludge can be used as a low permeability landfill cover. 相似文献