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1.
姚小丽  秦侠  雷蕾  苏静芝 《四川环境》2007,26(4):97-101
城市垃圾对环境的影响越来越严重,垃圾填埋导致垃圾渗滤液的大量产生,渗滤液中含有大量的有机物、大量的病菌、病毒、寄生虫等以及一些有毒有害的物质,若渗滤液不加以妥善处理、肆意排放,必将对地下水、地表水构成严重威胁,因此垃圾渗滤液的有效处理就成为一个亟待解决的问题。本文对城市垃圾填埋场渗滤液的处理工艺进行了分析和探讨,介绍了国内外垃圾渗滤液处理的主要技术,包括土地处理法、生物法和物化法,并对电解法处理垃圾渗滤液进行了详细的介绍。  相似文献   

2.
本文介绍了垃圾渗滤液的特点,对常用的垃圾渗滤液处理技术及目前的研究现状作了分析,并对城市垃圾渗滤液处理组合工艺的可行性进行了探讨,对该技术未来的研究方向进行了预测。  相似文献   

3.
处理城市垃圾填埋场渗滤液的新工艺   总被引:3,自引:0,他引:3  
本文针对城市生活垃圾渗滤液的特点,提出了混凝-SBR法处理工艺。试验结果表明,经该工艺处理的垃圾渗滤液各项指标可达国家规定的排放标准。  相似文献   

4.
准好氧填埋早期渗滤液特征浅析   总被引:10,自引:1,他引:10  
张陆良  刘丹 《四川环境》2004,23(3):28-30,34
本文基于室内垃圾模拟柱试验,分析了准好氧填埋早期垃圾渗滤液的产生过程及垃圾降解的机理,得出了启动期内垃圾渗滤液产量的变化趋势,总结出准好氧结构的部分优点,并针对早期准好氧渗滤液产量的特点作了相应的讨论。  相似文献   

5.
城市垃圾渗滤液处理技术发展现状   总被引:3,自引:0,他引:3  
介绍了城市垃圾渗滤液的来源和特点,根据近些年的工程实际和实验研究结果,主要论述了垃圾渗滤液的处理方案和处理技术,包括回灌法、土地处理法、物理化学法、生物法等。对这些处理方法进行了比较,在此基础上提出了相应的建议。  相似文献   

6.
深圳下坪填埋场渗滤液产生量预测研究   总被引:7,自引:1,他引:7  
对垃圾填埋渗滤液产生量预测模型进行了比较,选择经验-合理式模型作为填埋场渗滤液产生量的预测模型。综合下坪垃圾填埋场不同汇水面积、降雨量和渗滤液量的现场实测数据,采用线性回归确定了模型参数,通过模型预测渗滤液产生量与现场实测渗滤液产生量的对比分析了本模型的精度和可靠性,从而为填埋场渗滤液产生量的预测及收集处理系统的设计、管理提供科学依据。  相似文献   

7.
GC-MS法测定垃圾填埋场渗滤液中的有机污染物   总被引:1,自引:0,他引:1  
刘田  孙卫玲  倪晋仁  周翠 《四川环境》2007,26(2):1-5,10
采用GC-MS联用技术对深圳市两个垃圾填埋场(A和B)渗滤液中的有机污染物进行分析。垃圾场A是简易生活垃圾填埋场,垃圾场B是生活垃圾焚烧底渣填埋场。垃圾场A渗滤液中COD、TOC、NH3-N、NO3^--N等污染指标的浓度比垃圾场B渗滤液高一个数量级。两个垃圾填埋场渗滤液中分别检测出主要有机物72种和57种,其中含有大量难降解有机物,如酚类、胺类、杂环类物质。两个垃圾填埋场渗滤液中有机物组分的相对含量不同,渗滤液A中酚类物质含量最高,渗滤液B中有机物多为长链烷烃。  相似文献   

8.
垃圾渗滤液中氨氮去除技术评价及应用   总被引:1,自引:0,他引:1  
垃圾卫生填埋过程中会产生有毒有害的垃圾渗滤液。垃圾渗滤液中的高氨氮对环境及后续生物处理过程造成了严重的影响。本文介绍了几种去除垃圾渗滤液氨氮的技术,并对这些技术进行了评估,分析了这些技术工程应用的特点,同时指出了垃圾渗滤液中氨氮去除技术工程应用的发展方向。  相似文献   

9.
卢铭  李建明  陈志  梁希  彭辉 《四川环境》2005,24(6):40-44,49
由于垃圾渗滤液具有复杂的水质特征,所以垃圾渗滤液的臭氧处理是十分必要的。本文介绍了基于臭氧的垃圾渗滤液处理技术的研究和应用现状,以及臭氧处理单元的发展和先进的臭氧化反应系统。总结了垃圾渗滤液臭氧处理的优缺点,预测了这一技术的发展趋势。  相似文献   

10.
垃圾填埋场渗滤液对地下水污染的修复技术   总被引:1,自引:0,他引:1  
在查阅国内外相关文献资料的基础上,综述了垃圾填埋场渗滤液的产生以及对地下水的污染,介绍了垃圾渗滤液污染控制措施,包括顶部覆盖层、垃圾分层填埋、地表入渗水导流等;然后主要介绍了地下水的原位修复技术,包括加药法、地下曝气法、生物修复,等。  相似文献   

11.
采用生物反应器填埋场消纳生活垃圾,通过改变模拟生物反应器填埋场实验垃圾柱的装填方式和运行方式,对不同垃圾柱的渗滤液水质变化特征进行分析,试验表明,生物反应器填埋场具有稳定时间短,渗滤液污染强度削减快,给后续的渗滤处理系统的设计及运行带来极大的便利。  相似文献   

12.
唐平  刘丹  李启彬 《四川环境》2004,23(6):58-61
基于传统填埋场的不足,本文提出了可持续发展填埋场的思想,即采取必要措施使填埋处置的垃圾尽快达到“最终贮存质量(FSQ)”标准,使得排放到环境(空气、水、土壤)中的物质不需要进一步处理便可为环境所接受。对于可持续发展填埋场的研究发展动态作了介绍,并且阐述了我国的应用潜力和发展前景。  相似文献   

13.
The estimation of leachate quantities produced in landfills is necessary to dimension the treatment plants allowing to reduce the polluting load of these effluents and consequently avoid their negative impacts on the environment. Different leachate quantification methods were used in this study to assess the leachate volume produced at the Oum Azza landfill. The water balance method give comparable estimations of leachate production to the Ouled Berjal landfill ratio. The first method showed average values between 487 and 495 m3/day for 2015, 2018, and 2019, and at the same time, the second method gave values between 470 and 477 m3/day for the same years. In contrast, the World Bank ratio showed high values that vary between 2260 and 2295 m3/day for 2015, 2018, and 2019. The on-site data and the statistical analysis showed us that the World Bank ratio is not adapted for the estimation of the leachates produced in Oum Azza landfill, while the water balance and the ratio of Ouled Berjal landfill allowed to give comparable results to reality.  相似文献   

14.
油气田钻屑与废泥浆固化处理技术的初步研究   总被引:2,自引:0,他引:2  
由于钻井废弃泥浆流失会对环境造成严重污染,所以必须对废弃泥浆进行固化处理。通过大量实验研究,筛选出了分别适合于钻屑与高密度(ρ〉2.0g/cm^3)、中密度(ρ=1.6g/cm^3左右)、低密度(ρ=1.2g/cm^3左右)钻井废泥浆的几种固化剂配方。现场结合具体情况选用实验筛选的固化荆配方对废钻井泥浆和钻屑固化处理,固化物的强度达到0.3MPa以上,固化物浸出液中污染物含量达到《污水综合排放标准》(GB8978-1996)一级标准要求。  相似文献   

15.
氧化法预处理垃圾渗滤液技术研究及应用   总被引:3,自引:0,他引:3  
叶胜辉 《环境技术》2005,24(3):33-34
由于垃圾渗滤液含有多种有毒有害的难降解的有机物,影响了生物处理效果。采用Fenton氧化法、湿式催化氧化法和电解氧化法预处理,可减少渗滤液的污染负荷,提高可生化性,在实际应用中取得良好的效果。  相似文献   

16.
针对垃圾渗滤液的特性及目前处理工艺普遍无法达标的问题,提出应用生物酶催化技术处理垃圾渗滤液的方法,可以高效迅速降解污染物,提高污染物去除效率,减少投资及处理费用,为垃圾渗滤液处理的技术升级与工艺探索提供新思路。  相似文献   

17.
The evaluation of bioflocculant, in comparison with traditional inorganic coagulants, for the removal of humic acids from landfill leachates stabilized by biological treatment, was performed using conventional jar-test coagulation experiments. The optimized conditions (pH and coagulant dosage) were identified for the treatment of synthetic solutions as well as for biologically pre-treated landfill leachates. It was found that the application of bioflocculant was quite efficient in the removal of humic acids from synthetic solutions as well as in the reduction of COD content from real landfill leachates. The optimal pH value was found to be between 7 and 7.5, while a 20 mg/l bioflocculant dosage was sufficient in providing more than 85% humic acid removal. The results were comparable with those obtained by the application of conventional coagulants such as alum or polyaluminum chloride; therefore, bioflocculant can be considered as a viable alternative in the treatment of landfill leachates applying coagulation.  相似文献   

18.
根据催化湿法氧化处理垃圾渗滤液的小试工艺条件以及实验参数,初步估算了该工艺的投资费用和运行费用,并与其它处理工艺进行了比较,结果显示,催化湿法氧化工艺处理垃圾渗滤液具有良好的应用价值。  相似文献   

19.
Despite the use of recyclable materials increasing worldwide, waste disposal to landfill remains the most common method of waste management because it is simple and relatively inexpensive. Although landfill disposal is an effective waste management system, if not managed correctly, a number of potential detrimental environmental impacts have been identified including soil and ground water contamination, leachate generation, and gas emissions. In particular, improper post-closure treatment of landfills or deterioration of the conventional clay landfill capping were shown to result in land degradation which required remediation to secure contaminants within the landfill site.Phytoremediation is an attractive technology for landfill remediation, as it can stabilize soil and simultaneously remediate landfill leachate. In addition, landfill phytoremediation systems can potentially be combined with landfill covers (Phytocapping) for hydrological control of infiltrated rainfall. However, for the successful application of any phytoremediation system, the effective establishment of appropriate, desired vegetation is critical. This is because the typically harsh and sterile nature of landfill capping soil limits the sustainable establishment of vegetation. Therefore, the physicochemical properties of landfill capping soils often need to be improved by incorporating soil amendments. Biosolids are a common soil amendment and will often meet these demanding conditions because they contain a variety of plant nutrients such as nitrogen, phosphate, potassium, as well as a large proportion of organic matter. Such amendment will also ameliorate the physical properties of the capping soils by increasing porosity, moisture content, and soil aggregation. Contaminants which potentially originate from biosolids will also be remediated by activities congruent with the establishment of plants and bacteria.  相似文献   

20.
本文在高锰酸钾药剂用于处理微污染物的基础上,研究了难降解有机污染物的可行性。结果表明高锰酸钾药剂对垃圾渗滤液具有很好的沉降效果。本文研究了混凝剂类型、用量、沉降时间、pH等对沉降效果的影响,结果表明高锰酸钾药剂在垃圾渗滤液的深度处理中具有很好的应用前景。  相似文献   

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