Reuse of sewage sludge as raw material of Portland cement in Japan.
نویسندگان
چکیده
A potential alternative of sewage sludge reuse is the substitute of raw material for Portland cement. This paper overviews Japanese implementation of this and discusses the best selection of pretreatment for this purpose. The pretreatment includes dewatering, incineration, and lime treatment.
منابع مشابه
Municipal Sewage Sludge Drying Treatment by an Composite Modifier
A sludge composite modifier SCM which comprises a mixture of three cementitious components was proposed for sludge drying and stabilization. Effect of SCM components on sludge moisture content was analyzed using uniform design and the optimum composition of SCM was determined by computer-aided modeling and optimization. To compare the drying effect of SCM, quicklime, and Portland cement, the ef...
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متن کاملSulfur Release from Cement Raw Materials during Solid Fuel Combustion
During combustion of solid fuels in the material inlet end of cement rotary kilns, local reducing conditions can occur and cause decomposition of sulfates from cement raw materials. Decomposition of sulfates is problematic because it increases the gas-phase SO2 concentration, which may cause deposit formation in the kiln system. SO2 release from cement raw materials during combustion of solid f...
متن کاملSewage Sludge as a Biomass Resource for the Production of Energy: Overview and Assessment of the Various Options†
Treatment of municipal wastewater results worldwide in the production of large amounts of sewage sludge. The major part of the dry matter content of this sludge consists of nontoxic organic compounds, in general a combination of primary sludge and secondary (microbiological) sludge. The sludge also contains a substantial amount of inorganic material and a small amount of toxic components. There...
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ورودعنوان ژورنال:
- Water science and technology : a journal of the International Association on Water Pollution Research
دوره 46 10 شماره
صفحات -
تاریخ انتشار 2002