Pedosphere 16(3): 297--303, 2006
ISSN 1002-0160/CN 32-1315/P
©2006 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Thechnical innovation of land treatment systems for municipal wastewater in northeast China |
ZHOU Qi-Xing1,2 , ZHANG Qian-Ru3,4 and SUN Tie-Heng1,3 |
1 Shenyang Key Laboratory of Environmental Engineering, Shenyang University, Shenyang 110010 (China). E-mail: Zhouqixireg2003@yahoo.com
2 College of Environmental Science and Engineering, Nankai University, Tianjin 300071 (China)
3 Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China)
4 Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China) |
| ABSTRACT |
| On the basis of ecological principles including holistic optimization, cycling and regeneration, and regional differentiation, 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 determined 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. |
| Key Words: land treatment system, municipal wastewater, soil ecosystem, soil purification |
| Citation: Zhou, Q. X., Zhang, Q. R. and Sun, T. H. 2006. Thechnical innovation of land treatment systems for municipal wastewater in northeast China. Pedosphere. 16(3): 297-303. |
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