Nitrification, denitrification and denitrogenation artificial baffling type ecological system and method for river or pond

Abstract

The invention discloses a nitrification, denitrification and denitrogenation artificial baffling type ecological system and method for a river or a pond. By utilizing a nitrification, denitrification and denitrogenation principle of river natural ecology, a surface flow system in different environments is constructed through an ecological engineering method whether submerged plants exist or not; by means of river diversion, a water flow is operated in a baffling manner; continuous areas without aquatic plants and submerged plant close planting areas are connected in series, so that a water body is sufficiently contacted with the submerged plants and a substrate; continuous aerobic, anoxic or anaerobic units are formed; and nitrification and denitrification processes of nitrogen are carried out continuously and sufficiently. The nitrification, denitrification and denitrogenation artificial baffling type ecological system disclosed by the invention is obvious in function division, high in nitrogen purification efficiency and low in investment and operation cost, and the technological process is easy to manage and control; furthermore, the ecological engineering method integrates the function of enhancing the ornamental value of a water environment while ensuring the water quality; and therefore, the ecological engineering method can be widely applied to ecological treatment of non-point source pollution in an urban river and a village pond having a certain flow speed.

Description

technical field [0001] The invention relates to the field of ecological engineering water treatment, and more specifically relates to a nitrification, denitrification and denitrification artificial baffle ecosystem and construction method for rivers or ponds. Background technique [0002] Surface flow constructed wetlands are usually transformed from natural swamps, abandoned rivers and other depressions. Compared with traditional sewage treatment facilities, they have the advantages of simple construction, low investment costs, and easy management. At present, it has been widely used to treat domestic and aquaculture sewage, accumulate and purify storm runoff, control non-point source pollution, restore and rebuild rivers, lakes and wetlands, etc. Under a relatively long effective residence time, surface flow wetlands have a certain degree of removal effect on various pollutants, among which strong nitrification is one of the characteristics of surface flow, while denitrifi...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the problems of low nitrogen removal efficiency in existing conventional surface flow constructed wetlands and high energy consumption based on traditional A / O process design, and provide a nitrification and denitrification method for rivers or ponds. The denitrification ecological engineering system scientifically sets the A / O treatment modules with different treatment conditions in series, and the water flows through the whole system in the form of horizontal, gravity flow or surface overflow, without power consumption, which is conducive to the full nitrification and denitrification process of nitrogen. Improve nitrogen processing efficiency while reducing energy consumption

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