Backwash, aeration type undercurrent wetland water body purification apparatus and water body purification method

A technology for water purification and submerged wetlands, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve problems such as short circuit of water flow, slow recovery of microorganisms in spring, and poor water quality of effluent. , to prevent blockage, improve water purification capacity, and achieve good results

Inactive Publication Date: 2007-08-01
TIANJIN WATER CONSERVANCY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many defects and deficiencies. Plants and microorganisms in subsurface wetlands are greatly affected by climate, especially in the improvement of water environment in northern cities. Due to the impact of winter freezing period, the wetland system cannot operate due to the freezing of aquifer layers; subsurface wetlands The microorganisms in the wetland rely on the natural formation during the operation process, and high-efficiency microbial bacteria cannot be added artificially, and the role of microbial degradation in subsurface wetlands cannot be fully exerted, especially the treatment effect in the early stage of wetland construction is poor, and the recovery process of microorganisms in spring is

Method used

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  • Backwash, aeration type undercurrent wetland water body purification apparatus and water body purification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060]The purification treatment pool (19) is in the shape of a cubic box as a whole, and the purification treatment pool (19) is provided with a partition wall (20) in the middle to separate the purification treatment pool (19) into a descending pool (6) and an ascending pool (9). The filling matrix (7) is evenly filled in the pool (6) and the ascending pool (9), the pool wall of the purification treatment pool (19) is higher than the upper surface of the filling matrix (7), and the filling matrix (7) should not pass through the water distribution pipe (5) and the water collection pipe (10), the upper end of the purification treatment pool (19) is below the surface, and the water body runs in the purification treatment pool (19) under the surface all the time.

[0061] The filling substrate (7) top in the descending pond (6) and the ascending pond (9) are all planted with amphibious species (17), and the roots of the plant (17) are tied in the bottom of the descending pond (6)...

Embodiment 2

[0071] One side of the ascending pool (9) is provided with an inspection and emptying pipe (16), and the inspection and emptying pipe (16) penetrates from the top of the ascending pool (9) to the bottom of the ascending pool (9). Water seepage holes are set on the pipe wall, and the water body in the purification treatment tank (19) is evacuated by the maintenance and drainage water pipe (16) during maintenance, as shown in Figure 1.

Embodiment 3

[0073] An aerator (12) is arranged on the side of the purification treatment pond (19), and at least one aeration pipe (13) is arranged at the bottom of the purification treatment pond (19), and the aeration pipe (13) runs through the descending pond (6) and the ascending pond (6). At the bottom of the pool (9), the other end of the aeration pipe (13) is connected to the outlet of the aerator (12), and the aerator (12) evenly descends to the pool (6) through the aeration pipe (13). Perform aeration with the filling matrix (7) in the ascending pool (9) to increase the content of dissolved oxygen in the water body, as shown in Figure 1.

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Abstract

The invention discloses a purifying device of backwash, aeration type hidden flow marshland water body and a method of purifying water body, wherein the whole purified pool display cube box; the separating pool separate the pool as downward pool and upper pool; the filling base material pack evenly in the pool; planting amphibious plant on the upper; setting cloth water pipe on the upper of the upper pool; making the upper of adjusting pool higher than purifying pool; setting inlet pipe and water-feed pump on the one side of the adjusting pool; setting admitting pipe and admitting pipe on the upper of the upper pool; setting aeration machine on one side of the purifying pool. The invention possesses high load factor, small plot area and good treatment effect, which can improve treatment effect.

Description

technical field [0001] The invention relates to an underflow wetland water body purification equipment, in particular to a backwashing and aeration type underflow wetland water body purification equipment and a water body purification method. Background technique [0002] Since the 1970s, water treatment technology of constructed wetlands has attracted people's attention. It has the advantages of low investment and low energy consumption, and has become a research hotspot in water environment technology. Subsurface flow wetland is a new technology of artificial wetland sewage treatment, which is an artificially constructed, controllable and engineered wetland system. [0003] The advantage of the subsurface wetland is that it makes full use of the space of the wetland and plays a coordinating role among the systems. Under the condition of the same area, the treatment capacity of the subsurface wetland is greatly improved. Currently, subsurface wetlands include three key com...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/02C02F3/30
CPCY02W10/10
Inventor 刘学功李金中江浩孙宝玉
Owner TIANJIN WATER CONSERVANCY INST
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