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城市污水处理厂污泥的土地利用是其资源化利用的主要途径,配施城市污泥改良沙化土壤则是污泥土地利用的方式之一.沙化土壤的特点是土力贫瘠,有机质、养分等缺乏,污泥施入后可提高其保水、持水性,特别是增加土壤中的有机质含量,可使植物获得良好的生长响应.在污泥土地利用国内外研究现状基础上,重点阐述污泥改良沙化土壤的可行性及实施方案.污泥用于沙化土壤的生态改良与修复将同时解决城市污水处理厂污泥的处理处置和土地沙漠化这两个广受关注的环境问题,具有一定的经济、社会、环境效益.
Land use of sludge in urban sewage treatment plant is the main way of resource utilization, and the improvement of sandy soils with municipal sludge is one of the ways of land use of sludge. Desertified soil is characterized by poor soil fertility, organic matter and nutrients Lack of sludge can improve its water retention, water retention, especially to increase the content of organic matter in the soil, can make plants get a good growth response.In the sludge land use based on the status of research at home and abroad, focusing on sludge improvement Feasibility and Implementation Plan of Desertified Soil The ecological improvement and remediation of sludge for sandy soil will solve the two widely-concerned environmental problems of sludge disposal and land desertification in urban sewage treatment plant at the same time and have certain economic, Social, environmental benefits.