Method of purifying city surface source pollution and river lake water by new type shore protection function member

Abstract

The present invention relates to a method for eliminating urban surface source pollution and purifying river and lake water quality by utilizing slop protection built up by using shore-protecting functional members. Said new-type shore-protecting ecological concrete functional member has an internal cavity, in the internal cavity a kind of functional filling material is placed, to the filling material the biological membrane can be attached, the filling material can be pebble, biological ceramsite, zeolite and immobilized microbial spheres, etc. and their combination so as to form a biological contact oxidation system. Said invention also provides the action principle of said method, and provides the concrete steps for implementing said method.

Description

technical field [0001] The invention relates to a method for purifying urban non-point source pollution and urban river and lake water, in particular to a method for purifying urban non-point source pollution and river and lake water by using slope protection built with ecological concrete functional components. Background technique [0002] At present, there are many methods of using slope protection to control urban non-point source pollution, such as the traditional vertical stone revetment in the city. This vertical hard revetment method has played a very important role in urban flood control and saving urban land occupation. , and also has a certain effect on water and soil conservation, but this method cuts off the connection between revetment and aquatic ecosystem, and the upright hard materials seriously affect the habitat of aquatic organisms. [0003] Before the present invention, there were also many methods for ecological slope protection of rivers and lakes, suc...

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Problems solved by technology

However, this type of ecological slope protection method is not suitable for steeper and eroded slopes, and for cities where every inch of land is expensive, it is impossible to have such a wide embankment on the river bank for ideal ecological slope protection. Therefore, For cities, the construction of a relatively ideal ecological revetment is greatly restricted, and its operability is poor, so it is basically difficult to realize

For urban rivers, especially the rivers of the ancient Jiangnan city, the river is narrow, the water is deep, controlled by man-made gates, and the situation of erect hard revetment is to resist soil erosion and loss caused by the impact of river water on the soil slope when the flow rate is high. Seriously, a semi-series of ecological slope protection technology methods appeared, that is, concrete stone revetments were set up at the junction of the water surface and the slope bank at the normal water level of the river, and trees, shrubs, lawns, etc. were set up on the slope bank above the water surface. It can achieve a similar effect to the whole series of ecological slope protection technology in the landscape, but in this slope protection method, the vertical stone revetment directly contacts the water body, which splits the connection between water and land and affects the habitat of aquatic organisms. Moreover, in order to resist the erosion of the slope protection by the summer flood peak, the stone revetment is often very high, which further aggravates the fragmentation of the water and land ecosystems, affects the material exchange of the water and land ecosystems, and objectively affects the urban landscape effect

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