A hydraulic tidal flow variable displacement artificial wetland and a process for using the artificial wetland to treat sewage

Abstract

The invention discloses a hydraulic tidal current position-variable artificial wetland and a process for carrying out sewage treatment by utilizing the hydraulic tidal current position-variable artificial wetland. The hydraulic tidal current position-variable artificial wetland comprises a pulse stream subsectional wetland, at least one set of pretreatment systems and a tidal current position-variable wetland, wherein the pretreatment systems are mutually connected; the tidal current position-variable wetland is connected with the pulse stream subsectional wetland; the tidal current position-variable wetland comprises a wetland main body, a position-variable water distribution device, a position-variable water discharge device and an automatic reoxygenation device; the position-variable water distribution device is erected above the wetland main body, the position-variable water discharge device is used for connecting the wetland main body and the pulse stream subsectional wetland, and the automatic reoxygenation device is arranged in the wetland main body; and the pulse stream subsectional wetland comprises a water inlet mixing area, a first-stage buffer area, a second-stage buffer area and a water discharge area which are sequentially arranged. The hydraulic tidal current position-variable artificial wetland disclosed by the invention has very high natural reoxygenation capacity, and improves the unit volume treatment efficiency in an aerobiotic operating mode under the precondition that the energy consumption is not increased, and thus reducing the occupied area; and the hydraulic tidal current position-variable artificial wetland disclosed by the invention realizes the enhancement of denitrification capacity by creating a variable inner habitat of a dynamic wetland and solves the problem of blockage.

Description

technical field [0001] The invention relates to the field of resource and environmental protection, in particular to a hydraulic tidal flow variable displacement artificial wetland applied to sewage treatment and surface water restoration treatment and a process for treating sewage with the wetland. Background technique [0002] With the enhancement of people's awareness of environmental protection, people have higher and higher requirements for water treatment. They not only pay attention to the degree of water treatment, but also pay attention to the aesthetics and affinity of facilities. Managers are more concerned about the investment and operating costs of facilities. Constructed wetland is an irreplaceable, low-energy, environmentally friendly and ecological management technology. It has been used in sewage treatment and surface water restoration for many years. It has the advantages of less power, beautiful ecology, simple management, and good treatment effect. Disadv...

AI Technical Summary

Problems solved by technology

In addition to the basic advantages of wetlands, the artificial wetland of the present invention also has three characteristics. One is that it has a strong natural reoxygenation ability. Under the premise of not increasing energy consumption, the aerobic operation mode improves the treatment efficiency per unit volume and reduces the occupied area. The second is to create a variable dynamic wetland habitat to improve the denitrification and denitrification capacity, and the third is to design a special structure and operation mode to solve the problem of blockage

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