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A maintenance-friendly sewage treatment system based on constructed wetland

A sewage treatment system and artificial wetland technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve problems such as difficult to eliminate heavy metal pollution and reduce the workload of sewage treatment system, Reach the effect of reducing workload and saving cost

Active Publication Date: 2019-12-24
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects or deficiencies existing in the prior art, the present invention innovatively proposes an easy-to-maintain sewage treatment system based on constructed wetlands, which strengthens the nitrogen and phosphorus removal efficiency of the constructed wetland sewage treatment process, and solves the problem of traditional constructed wetlands. The treatment process is difficult to eliminate the problem of heavy metal pollution, and at the same time, it reduces the workload of post-maintenance of the sewage treatment system

Method used

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  • A maintenance-friendly sewage treatment system based on constructed wetland
  • A maintenance-friendly sewage treatment system based on constructed wetland
  • A maintenance-friendly sewage treatment system based on constructed wetland

Examples

Experimental program
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Effect test

Embodiment 1

[0041] as attached Figure 9 As shown, the bottom of the wetland box is provided with a water inlet pipe 17 for injecting sewage into the wetland box, and one end of the water inlet pipe 17 is fixedly connected with a seepage pipe 18, and the seepage pipe 18 is laid on the bottom of the wetland box in a spiral manner The seepage pipe 18 is drilled with small holes 20 every 50 cm apart, which increases the laying amount of the seepage pipe 18 at the bottom of the wetland box body and the inflow of sewage.

Embodiment 2

[0043] as attached Figure 10 As shown, the bottom of the wetland box is provided with a water inlet pipe 17 for injecting sewage into the wetland box, and one end of the water inlet pipe 17 is fixedly connected with a seepage pipe 18, and the seepage pipe 18 is laid on the wetland box in a serpentine bend The bottom of the seepage pipe 18 is perforated with small holes 20 at intervals of 50 cm, which increases the laying amount of the seepage pipe 18 at the bottom of the wetland box body and the inflow of sewage.

Embodiment 3

[0045] as attached Figure 11 and 12 As shown, a deflector 29 is provided in the middle and lower part of the wetland box, and the deflector 29 divides the wetland box from bottom to top into a water inlet chamber 30 and a filter chamber 31, and the bottom of the wetland box is provided with a water inlet for injecting sewage into the water inlet chamber. The water inlet pipe; the filter chamber is laid with a variety of filter substrates, and the multi-layer filter substrate in the filter chamber is laid with large bluestone, small gravel, fine sand, modified zeolite, nanocomposite materials and soil layers in sequence from bottom to top; The top of the wetland box is provided with an outlet pipe 19 for discharging the treated water from bottom to top through the multi-layer filter matrix and collecting it from the wetland box; And the guide hole 32 of the filter chamber 31.

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Abstract

The invention discloses a sewage treatment system convenient to maintain based on constructed wetlands. The sewage treatment system comprises wetland plants and is characterized by further comprising a drawer type sealed wetland box in which multiple filtering substrates are laid; the wetland plants are planted on the wetland box, a plurality of drawer layers with containing cavities are arranged in the wetland box, and the filtering substrates for purifying sewage are placed in the drawer layers respectively; large bluestone blocks, small gravels, fine sand, modified zeolite, nano composites and a soil layer are placed on the drawer layers respectively from bottom to top. According to the sewage treatment system convenient to maintain based on the constructed wetlands, the nitrogen and phosphorus removal efficiency of the constructed wetland sewage treatment process is enhanced, the problem that heavy metal pollution is hard to remove through a traditional constructed wetland treatment process is solved, and meanwhile the workload of later maintenance of the sewage treatment system is reduced.

Description

technical field [0001] The invention relates to the technical field of artificial wetland sewage purification and treatment systems, in particular to a sewage treatment system based on artificial wetlands and easy to maintain. Background technique [0002] Constructed wetland is a ground similar to swampland that is artificially constructed and operated under control. Sewage and sludge are distributed to the artificially constructed wetland in a controlled manner. When sewage and sludge flow in a certain direction, they are mainly used It is a technology for treating sewage and sludge through the triple synergy of physics, chemistry and biology of soil, artificial medium, plants and microorganisms. Its mechanism of action includes adsorption, retention, filtration, redox, precipitation, microbial decomposition, transformation, plant shading, residue accumulation, transpiration of water and nutrient absorption, and the action of various animals. Constructed wetland is a cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCC02F3/32Y02W10/10
Inventor 崔育倩郭培志谢文霞杨瑞霞曾倩
Owner QINGDAO UNIV
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