污水处理固体废弃物的低碳处理和综合利用研究
发布时间：2018-09-03 15:57
【摘要】：随着气候变化、资源枯竭等全球问题日益凸显,低碳理念越来越深入人心,低碳城市的建设也推向了高潮,而低碳城市的建设关键在于实施低碳化策略。因此本课题针对深圳低碳城内污水处理固体废弃物(丁山河污水处理厂剩余污泥和人工湿地收割植物)的处理处置未引入低碳化策略,根据低碳城对固体废弃物处理处置的要求,研究污水处理固体废弃物的特征,对比研究得到低碳的处理处置方案。同时对深圳市生活垃圾处理现状进行调查,研究污水处理固体废弃物掺混生活垃圾焚烧的可行性,利用生命周期对方案的碳排放进行评价,得到集约、循环的低碳型废弃物处理系统,为深圳低碳城固体废弃物低碳处理的发展提供重要的现实指导意义。本文研究了污水处理固体废弃物(丁山河污水处理厂剩余污泥和人工湿地收割植物)的特征和处理处置现状,并提出了初步方案。通过研究发现了剩余污泥的特性含量和季节性变化规律。其中污泥的含水率、有机物含量、有机质含量、总养分、热值和重金属含量(铜、铬、镍、锌)在旱季大于雨季;相比于剩余污泥,收割植物的含水率和热值较高,重金属含量较低,且无明显的季节性变化规律。结合处置标准和低碳城现状及规划,初步筛选出污水处理固体废弃物填埋方案和混合焚烧方案。研究了污水处理固体废弃物(丁山河污水处理厂剩余污泥和人工湿地收割植物)混合焚烧方案,并提出“自然干化+混合焚烧”的具体方案及方案基本参数。同时对混合焚烧方案和填埋方案进行经济性分析和碳排放计算,得到混合焚烧方案相比于填埋方案具有更大的低碳和经济效益。研究提出了污水处理固体废弃物(丁山河污水处理厂剩余污泥和人工湿地收割植物)掺混生活垃圾焚烧方案,得到掺混焚烧方案相比于混合焚烧方案具有更大的经济效益和碳减排量,且能够形成集约、循环的低碳型的废弃物处理系统的目标。同时利用e Balance软件评价得到掺混焚烧方案生命周期的总碳排放系数。
[Abstract]:With the global problems such as climate change and resource depletion becoming increasingly prominent, the concept of low carbon is becoming more and more popular, and the construction of low-carbon cities is also reaching a climax. The key to the construction of low-carbon cities lies in the implementation of low-carbon strategies. Therefore, the low carbonization strategy has not been introduced to the treatment and disposal of solid waste in Shenzhen low carbon city sewage treatment plant (surplus sludge from Dingshan River sewage treatment plant and harvesting plants in constructed wetlands). According to the requirements of low carbon city for solid waste treatment, the characteristics of sewage treatment solid waste are studied, and the low carbon treatment and disposal scheme is obtained. At the same time, the present situation of municipal solid waste disposal in Shenzhen was investigated, and the feasibility of mixing solid waste with domestic waste incineration was studied. The carbon emission of the scheme was evaluated by using the life cycle, and the intensity was obtained. The recycle low carbon waste treatment system provides important practical significance for the development of low carbon solid waste treatment in Shenzhen. In this paper, the characteristics and treatment status of wastewater treatment solid waste (surplus sludge and reaping plants in constructed wetland) were studied, and a preliminary scheme was put forward. The characteristic content and seasonal variation of excess sludge were found. The moisture content, organic matter content, total nutrient, calorific value and heavy metal content (copper, chromium, nickel, zinc) of sludge were higher in dry season than in rainy season. The content of heavy metals was low and there was no obvious seasonal variation. Combined with the standard of disposal and the present situation and plan of low carbon city, the landfill scheme and mixed incineration scheme of sewage treatment solid waste were preliminarily selected. The mixed incineration scheme of wastewater treatment solid waste (surplus sludge and reaping plants in constructed wetland) was studied, and the concrete scheme and basic parameters of "natural dry mixed incineration" were put forward. At the same time, the economic analysis and carbon emission calculation of the mixed incineration scheme and the landfill scheme are carried out. The results show that the mixed incineration scheme has more low carbon and economic benefits than the landfill scheme. The incineration scheme of solid waste (surplus sludge and reaping plants in constructed wetland) for solid waste treatment in Dingshan River sewage treatment plant was studied and put forward. Compared with the mixed incineration scheme, the mixed incineration scheme has more economic benefits and carbon emission reduction, and can form the goal of intensive, circular low carbon waste treatment system. At the same time, the total carbon emission coefficient of the life cycle of the mixing incineration scheme was evaluated by e Balance software.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X703;X705
本文编号：2220460
[Abstract]:With the global problems such as climate change and resource depletion becoming increasingly prominent, the concept of low carbon is becoming more and more popular, and the construction of low-carbon cities is also reaching a climax. The key to the construction of low-carbon cities lies in the implementation of low-carbon strategies. Therefore, the low carbonization strategy has not been introduced to the treatment and disposal of solid waste in Shenzhen low carbon city sewage treatment plant (surplus sludge from Dingshan River sewage treatment plant and harvesting plants in constructed wetlands). According to the requirements of low carbon city for solid waste treatment, the characteristics of sewage treatment solid waste are studied, and the low carbon treatment and disposal scheme is obtained. At the same time, the present situation of municipal solid waste disposal in Shenzhen was investigated, and the feasibility of mixing solid waste with domestic waste incineration was studied. The carbon emission of the scheme was evaluated by using the life cycle, and the intensity was obtained. The recycle low carbon waste treatment system provides important practical significance for the development of low carbon solid waste treatment in Shenzhen. In this paper, the characteristics and treatment status of wastewater treatment solid waste (surplus sludge and reaping plants in constructed wetland) were studied, and a preliminary scheme was put forward. The characteristic content and seasonal variation of excess sludge were found. The moisture content, organic matter content, total nutrient, calorific value and heavy metal content (copper, chromium, nickel, zinc) of sludge were higher in dry season than in rainy season. The content of heavy metals was low and there was no obvious seasonal variation. Combined with the standard of disposal and the present situation and plan of low carbon city, the landfill scheme and mixed incineration scheme of sewage treatment solid waste were preliminarily selected. The mixed incineration scheme of wastewater treatment solid waste (surplus sludge and reaping plants in constructed wetland) was studied, and the concrete scheme and basic parameters of "natural dry mixed incineration" were put forward. At the same time, the economic analysis and carbon emission calculation of the mixed incineration scheme and the landfill scheme are carried out. The results show that the mixed incineration scheme has more low carbon and economic benefits than the landfill scheme. The incineration scheme of solid waste (surplus sludge and reaping plants in constructed wetland) for solid waste treatment in Dingshan River sewage treatment plant was studied and put forward. Compared with the mixed incineration scheme, the mixed incineration scheme has more economic benefits and carbon emission reduction, and can form the goal of intensive, circular low carbon waste treatment system. At the same time, the total carbon emission coefficient of the life cycle of the mixing incineration scheme was evaluated by e Balance software.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X703;X705
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