【摘要】 随着社会经济的发展与城市建设的加快，市政管网的通沟污泥产生量日趋增加，妥善处置通沟污泥成为目前城市水环境安全管理的重点之一。上海市某污泥焚烧厂根据现有工艺对通沟污泥清洗砂进行资源化利用，将通沟污泥清洗砂用作鼓泡式流化床的部分床料。试验表明，投加清洗砂对焚烧炉砂床压差有积极影响，投加量越多，压差增幅越显著。每投加1 t清洗砂对砂床压差的增量相当于投加0.7 t石英砂的增压效果。通沟污泥替代焚烧炉内部分床料，未对排放指标产生额外的负荷。实践表明，市政管网的通沟污泥实现资源化利用，这进一步验证通沟污泥资源化、减量化和无害化处置的可行性。更多还原

【Abstract】 With the development of social economy and the acceleration of urban construction,the amount of sewage sludge generated by municipal pipeline networks is increasing day by day,and properly disposing of sewage sludge has become one of the key focuses of urban water environment safety management.A sludge incineration plant in Shanghai city utilizes the existing process to recycle the cleaning sand of the sewage sludge,using it as part of the bed material for a bubbling fluidized bed.The experiment shows that adding cleaning sand has a positive effect on the pressure difference of the incinerator sand bed,and the more added,the more significant the increase in pressure difference.The increase in pressure difference of the sand bed with each addition of 1 t of cleaning sand is equivalent to the pressurization effect of adding 0.7 t of quartz sand.The replacement of part of the bed material in the incinerator with sewage sludge does not generate additional load on the emission indicators.Practice has shown that the sewage sludge in municipal pipelines can be utilized as a resource,which further verifies the feasibility of the resource utilization,reduction,and harmless disposal of sewage sludge.更多还原