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[来源:www.yuniguhua.com] [作者:淤泥固化] [日期:19-08-02]

几种淤泥处理的方法及优缺点分析
Several methods of sludge treatment and their advantages and disadvantages analysis
①淤泥的卫生填埋
(1) Sanitary landfill of silt
这种处置方法简单、易行、成本低,淤泥又不需要高度脱水,适应性强。但是淤泥填埋也存在一些问题,尤指填埋渗滤液和气体的形成。渗滤液是一种被严重污染的液体,如果填埋场选址或运行不当会污染地下水环境。填埋场产生的气体主要是甲烷,若不采取适当措施会引起爆炸和燃烧。
This disposal method is simple, easy to operate, low cost, mud does not need high dehydration, and has strong adaptability. However, there are some problems in sludge landfill, especially the formation of leachate and gas. Leachate is a seriously polluted liquid. If the landfill site is not located or operated properly, it will pollute the groundwater environment. Landfill gases are mainly methane, which can cause explosion and combustion if appropriate measures are not taken.
②淤泥的直接土地利用
(2) Direct land use of silt
淤泥土地直接利用因投资少、能耗低、运行费用低、有机部分可转化成土壤改良剂成分等优点,被认为是最有发展潜力的一种处置方式,科学合理的土地利用,可减少淤泥带来的负面效应。林地和市政绿化的利用因不易造成食物链的污染而成为淤泥土地利用的有效方式。淤泥用于严重扰动的土地(如矿场土地、森林采伐场、垃圾填埋场、地表严重破坏区等需要复垦的土地)的修复与重建,减少了淤泥对人类生活的潜在威胁,既处置了淤泥又恢复了生态环境。
Because of the advantages of low investment, low energy consumption, low operating cost, organic part can be converted into soil amendment components, direct utilization of silt land is considered as one of the most potential disposal methods. Scientific and rational land use can reduce the negative effects of silt. The utilization of woodland and municipal greening has become an effective way to use silt land because it is not easy to pollute the food chain. Silt is used to repair and rebuild the seriously disturbed land (such as mine land, forest cutting field, landfill, surface seriously damaged area, etc.), which needs reclamation. It reduces the potential threat of silt to human life, disposes of silt and restores the ecological environment.
③淤泥的焚烧
Incineration of sludge
湿淤泥干化后再直接焚烧应用得较为普遍,没有经过干化的淤泥直接进行焚烧不仅十分困难,而且在能耗上也是极不经济的。 以焚烧为核心的淤泥处理方法是最彻底的淤泥处理方法,它能使有机物全部碳化,杀死病原体,可最大限度地减少淤泥体积;但是其缺点在于处理设施投资大,处理费用高。
The direct incineration of wet sludge after drying is widely used. It is not only very difficult to incinerate directly without drying sludge, but also very uneconomical in energy consumption. The sludge treatment method with incineration as the core is the most thorough sludge treatment method. It can carbonize all organic matter, kill pathogens and minimize the volume of sludge. However, its shortcoming lies in the large investment of treatment facilities and the high cost of treatment.

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