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Nitrification, denitrification and denitrification natural advection ecosystem and construction method for rivers or ponds

A technology of nitrification and denitrification and ecological system, which is applied in the field of natural advective ecosystem of nitrification and denitrification denitrification, 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 enhanced The effect of denitrification effect

Active Publication Date: 2018-05-04
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 artificial wetlands and high energy consumption based on traditional A / O process design, and provide a nitrification and denitrification denitrification method for rivers or ponds. Nitrogen natural advection ecosystem and construction method, by simulating the A / O treatment module to set up the river or pond ecosystem, the water flows through the whole system in a horizontal push flow mode, without power consumption, which is conducive to the full nitrification and denitrification of nitrogen process, reducing energy consumption while improving nitrogen treatment efficiency

Method used

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  • Nitrification, denitrification and denitrification natural advection ecosystem and construction method for rivers or ponds
  • Nitrification, denitrification and denitrification natural advection ecosystem and construction method for rivers or ponds

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Embodiment 1

[0034] S1. Choose a natural river with a low flow rate (figure 1As shown, it includes a water inlet 1 and a water outlet 2, and also includes 3 arrangement units, and the system is composed of a first arrangement unit, a second arrangement unit and a third arrangement unit in sequence; the first arrangement unit consists of no aquatic plants Section 4 is composed of submerged plant close planting section 5, the second arrangement unit is composed of non-aquatic plant section 6 and submerged plant close planting section 7, and the third arrangement unit is composed of non-aquatic plant section 8 and emergent plant close planting Section 9 is composed.

[0035] The emergent plants and submerged plants are planted on the original bottom mud 3 of the river. The water flows through the water inlet 1 into the natural compound ecological surface flow system arranged in sequence, passes through the natural advection ecological system in an advection manner, and flows out from the main...

Embodiment 2

[0045] S1. Choose a natural river with a low flow rate ( figure 2 As shown, it includes the water inlet 1 and the water outlet 2, and also includes 4 arrangement units. The system is composed of the first arrangement unit, the second arrangement unit, the third arrangement unit and the fourth arrangement unit in sequence; the first arrangement The unit is composed of the non-aquatic plant section 4 and the submerged plant close-planting section 5, the second arrangement unit is composed of the non-aquatic plant section 6 and the submerged plant close-planting section 7, and the third arrangement unit is composed of the non-aquatic plant section 12 Composed of submerged plant dense planting section 13, the fourth arrangement unit is composed of non-aquatic plant section 8 and emergent plant dense planting section 9.

[0046] The emergent plants and submerged plants are planted on the original bottom mud 3 of the river. The water flows through the water inlet 1 into the natural ...

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Abstract

The invention discloses a natural horizontal flow type ecological system for nitrogen removal by nitrification and denitrification in rivers or ponds as well as an engineering method. River systems with different environment conditions are built with an ecological engineering method based on availability of aquatic plants; continuous aquatic-plant-free area and aquatic plant close planting area arrangement units are used during water flowing, so that a natural horizontal flow type surface flow system is realized by scientifically simulating an A / O (anoxic-oxic) process, uniform plug flow of water currents is guaranteed, the water currents are fully contacted with aquatic plants and substrates, accordingly, continuous oxic, anoxic or anaerobic parts are formed, and a continuous nitration-denitrification nitrogen-removal process with full reactions is realized. The ecologic system has obvious function divisions and a better effect on nitrogen removal, the technological process is easy to manage and control, few investments are required, operation expenses are low, the engineering method has a water environment ornamental function while guaranteeing a water quality effect and can be widely used for ecological treatment of non-point source pollution of rivers with a certain flow speed in towns and ponds in the countryside.

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 natural advection ecological system and construction method for river or pond systems. 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, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/32
CPCY02A20/402Y02W10/10
Inventor 杨扬王铭陶然李丽杨凤娟乔永民
Owner JINAN UNIVERSITY
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