Nitrification, denitrification and denitrogenation artificial baffling type ecological system and method for river or pond
A technology of nitrification and denitrification and ecological system, which is applied in the field of nitrification and denitrification and denitrification artificial baffle ecosystem, can solve the problems of low nitrogen removal efficiency and high energy consumption in artificial wetlands, and achieves the convenience of large-scale promotion and application, less investment, and The effect of high purification efficiency
Active Publication Date: 2015-07-15
广州和源生态科技发展股份有限公司
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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 syst...
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[0030] S1. Construct a 1+2×2 nitrification and denitrification ecosystem for river or pond systems, as shown in the attached figure 1 As shown, it includes a unit combination of one set of advection type no-vegetation surface flow unit 8 and two sets of downflow type no-plant surface flow unit 9 connected in series with upflow type with vegetative surface flow unit 10 . Each surface flow unit is designed with the same water depth and aspect ratio, where the aspect ratio is 1:1. In this embodiment, the length and width are set to 50 cm.
[0031] The surface soil (5-20 cm) of the mountain was collected, the sundries were removed, air-dried, ground and passed through a 100-mesh sieve, and used as the device bottom mud 3 (10 cm thick). Its total nitrogen and total phosphorus contents were 0.33±0.04 and 0.14±0.01 g / Kg dw, respectively.
[0032] bitter grass ( Vallisneria natans ) belongs to the perennial submerged plant of the family Hydrochardaceae, and the seedlings of the p...
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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...
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Login to view more IPC IPC(8): C02F9/14
CPCY02A20/402
Inventor 杨扬陶然王铭李丽乔永民赵建成
Owner 广州和源生态科技发展股份有限公司
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