Sewage processing system and sewage processing method using multiple wetland vegetation communities
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A wetland vegetation and wetland technology, applied in the field of water treatment, can solve the problems of single vegetation, unsatisfactory sewage treatment effect, and high operating costs, achieve good nitrogen and phosphorus removal, safe and reliable performance and service functions, and reduce on-site operators. Effect
Pending Publication Date: 2018-11-06
QINGDAO INST OF MARINE GEOLOGY
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[0005] This patent design aims at the disadvantages of relatively single vegetation, high operating costs and unsatisfactory sewage treatment effect in the existing wetland sewage treatment technology, and provides a new sewage treatment system that combines multiple wetland biological communities and utilizes a three-dimensional spiral design. And sewage treatment methods, while providing energy-saving and efficient sewage treatment services, it has a certain ornamental value
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Embodiment 1
[0032] This embodiment provides a sewage treatment system utilizing multiple wetland vegetation communities, such as figure 1 As shown, it includes sequentially connected pre-wetland pool 1, grid well 2, regulating pool 3, anaerobic pool 4, anoxic pool 5, aerobic pool 6, sedimentation pool 7, first water quality monitoring well 8, Water inlet pool 9, spiral wetland pool 10, water outlet pool 11, second water quality monitoring well 12. The arrows in the figure indicate the direction of water flow.
[0033] Pre-wetland pool 1, grid well 2, and regulating pool 3 are arranged from high to low; anaerobic pool 4, anoxic pool 5, aerobic pool 6, and sedimentation pool 7 are also arranged from high to low. This stepped design makes each unit have a certain height difference, and gravity can be used to promote the automatic flow of water, thereby reducing the frequency of use of the sewage lift pump and reducing energy consumption.
[0034] The bottom of the pre-wetland pool 1 is pro...
Embodiment 2
[0043] This embodiment provides a sewage treatment method using multiple wetland vegetation communities, including the following steps:
[0044] (1) Introduce sewage into the pre-wetland pool, plant reeds in the pre-wetland pool, fill the bottom with biological matrix materials, and the sewage flows through the roots of the reeds and the surface of the matrix, and then automatically flows into the grid well;
[0045] (2) A grid is arranged in the grid well to trap larger suspended solids or particles in the water body, and the sewage will automatically flow into the regulating tank from the outlet pipe at the bottom of the grid, and the water in the regulating tank will flow into the anaerobic through the sewage lifting pump. pool;
[0046] (3) The content of dissolved oxygen in the anaerobic tank is controlled at about 0.1mg / L. In the anaerobic tank, the refractory high-molecular organic matter in the sewage is transformed into a low-molecular organic matter that is easily de...
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Abstract
The invention provides a sewage processing system using multiple wetland vegetation communities. The sewage processing system comprises a front wetland pool, a grating well, an adjusting pool, an anaerobic pond, an anoxic pool, an aerobic tank, a sedimentation basin, a first water quality monitoring well, a water inlet pool, a spiral type wetland pool, a water outlet pool, and a second water quality monitoring well which are connected successively; the spiral type wetland pool comprises a tour tower; the periphery of the tour tower is provided with a spiral type pool body; different wetland plants are planted in different layers of the spiral type pool body; corresponding biological matrixes are arranged at the bottom of the spiral type pool body based on different plant design; an elevator is arranged in the tour tower; the side wall of the tour tower is provided with transparent windows; the front wetland pool, the grating well, and the adjusting pool are arranged from high to low successively; the anaerobic pond, the anoxic pool, the aerobic tank, and the sedimentation basin are arranged from high to low. The invention also provides a sewage processing method using the multiplewetland vegetation communities. The sewage processing system possesses following advantages: energy is saved; occupied space area is small; efficiency is high; suitable range is wide; and landscape value is achieved.
Description
technical field [0001] The invention relates to the technical field of water treatment, in particular to a sewage treatment system and a sewage treatment method utilizing multiple wetland vegetation communities. Background technique [0002] Under the double influence of human activities and climate change, the water quality of my country's coastal areas, rivers and lakes has gradually deteriorated in recent years, accompanied by frequent occurrence of ecological disasters such as red tides, acidification, and bottom hypoxia, which have seriously affected the economic development of my country's coastal zones and people's living standards. Bring immeasurable losses, and threaten the health of the people. In particular, urban domestic sewage, industrial wastewater, and farmland water carrying a large amount of pollutants (such as nitrogen, phosphorus, and heavy metals) are important sources of pollution that lead to water quality deterioration and eutrophication, and their har...
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