Movable and combined subsurface constructed wetland device and method

Abstract

The invention provides a movable and combined subsurface constructed wetland treatment device and method. The device comprises an outer net, an inner net, a separating and filtering net, a ring buckle and a filler layer, wherein the outer net is arranged on the outermost side; the inner net is closely attached to the outer net; the separating and filtering net is closely attached to the inner net and filled with filler; the ring buckle is arranged in the center of the top of the outer net; and plants are planted on the surface of the filler layer. The devices can be connected in parallel to form a single treatment pool system, and multiple treatment pools can be connected in series to form a multi-treatment-pool system; the devices can also be produced in batches in advance, plants are planted, microorganisms are tamed, and the devices can be installed immediately and work immediately when necessary. The system performs purification treatment on sewage through multiple effects such as sedimentation, filtration, chemical precipitation, adsorption, decomposition, microbial metabolism, plant metabolism, plant root absorption and the like, has the advantages that the system is not limited by sites, capable of being produced in a modularized manner and operated in a combined manner, reproducible, removable, replaceable, convenient to manage and maintain, low in cost and the like, and is broad in application prospect.

Description

technical field [0001] The invention relates to an artificial wetland treatment device and method, in particular to an underflow artificial wetland treatment device and method suitable for movable combination of sewage ecological treatment. Background technique [0002] In recent years, with the continuous increase of my country's urban population and the rapid development of industry and agriculture, environmental pollution has become increasingly serious, and the water quality environment has also deteriorated. Since a large amount of domestic sewage is directly discharged into water bodies without treatment, many water bodies are in a state of eutrophication, and this problem has aroused widespread concern. At present, the conventional treatment methods of urban sewage are mainly aerobic biological treatment and anaerobic biological treatment. These methods require large investment, high energy consumption, many processing units, and high requirements for operation and ma...

AI Technical Summary

Problems solved by technology

These two kinds of constructed wetlands have the following problems: (1) The site is fixed and occupies a large area; (2) The sanitation environment is poor, and it is difficult to manage and maintain, especially the surface flow constructed wetland, which is very easy to breed mosquitoes and flies; (3) It affects plants. There are many factors for growth, and once it is not planted well, it is not easy to remove and replace; (3) The initial system debugging, plant cultivation, and microbial domestication take a long time, often requiring 2-3 plant growth cycles to achieve the ideal operating state, and the efficiency is low; (4) ) Biological and hydraulic complexity increases the understanding and understanding of the treatment mechanism, process dynamics and influencing factors of the wetland system. The design and operation parameters are not easy to be accurate, and the effluent often fails to meet the design requirements due to improper early design.

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