Strategies on Restoration of Water Environment in China Using Bio-Eco System

摘要

In consideration of its national and regional characteristics,China needs to develop countermeasure techniques that allow the extensive use and diffusion of Bio-Eco Engineering,a hybrid technique of Bio-engineering,which stands for biotreatment engineering,and Eco-engineering,which stands for ecological engineering.More specifically,the following five tasks are principally necessary:① Survey on generation status of toxic cyanobacteria in lakes in many areas that greatly differ in climatic conditions,such as the temperate zone,the subtropical zone and the subarctic zone; ②Development of an environmental restoration technique using animacules and other microorganisms that prey on toxic cyanobacteria; ③ Investigation of the wastewater characteristics of the pollution sources of dispersed household wastewater,which is the major cause of eutrophication,in watershed areas; ④ Development of techniques for dispersed wastewater treatment as a measure against pollution sources,such as advanced Johkasou System for treating domestic wastewater,and soil treatment methods ; and ⑤ Development of water culture methods and ecological engineering techniques that allow use of large aquatic vegetation,such as artificial wetlands.