【摘 要】
：
On the basis of ecological principles including holistic optimization, cycling and regeneration, and regional differen tiation, land treatment systems (LTSs) fo
【机 构】
：
Shenyang Key Laboratory of Environmental Engineering,College of Environmental Science and Engineerin
【基金项目】
：
国家高技术研究发展计划(863计划);国家自然科学基金
论文部分内容阅读
On the basis of ecological principles including holistic optimization, cycling and regeneration, and regional differen tiation, land treatment systems (LTSs) for municipal wastewater were continuously explored and updated in the western Shenyang area and the Huolinhe area, China. Intensified pretreatment, addition of a man-made soil filtration layer, and use of an ecologically diversified secondary plant cover were proved to be technically feasible. Hydraulic loading was de termined according to the assimilation capacity of soil ecosystems, thus ensuring safe operation of wastewater treatment.This modernized and alternative approach to wastewater treatment had been widely applied in middle-sized and small cities and towns of Northeast China, and these innovative systems in some areas had indicated favorable ecological, social,and economic benefits.
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