Sewage treatment system for artificial wetland primarily

A technology for sewage treatment system and constructed wetland, applied in the field of comprehensive sewage treatment system and sewage treatment system, can solve the problem of small footprint, and achieve the effect of reducing the area, reducing the content of pollutants, and avoiding clogging

Inactive Publication Date: 2009-11-25
HAISIBOTE BEIJING SCIENE & TECH
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Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sewage treatment system based on constru...

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  • Sewage treatment system for artificial wetland primarily

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Embodiment Construction

[0008] see figure 1 , the present invention first passes through the pretreatment of grid and flocculation sedimentation to the sewage, and through aeration, to increase the oxygen content of the sewage entering the constructed wetland, avoiding the peculiar smell caused by insufficient oxygen in the constructed wetland and the negative effect on water purification impact, improve the biodegradability of sewage, wherein the grille is preferably the mechanical grille of the prior art, remove larger solid debris through the mechanical grille, enter the sump, collect water in the sump, and in the sump Set the stirring paddle or submersible pump to homogenize the sewage, and then in the flocculation mixing tank, set the dosing device on the flocculation mixing tank to add flocculants (flocculants and coagulants, etc.) to the sewage, for the usual For sewage, the concentration range of the flocculation agent is between 50-100mg / L. A stirring paddle is set in the flocculation mixing...

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Abstract

The invention relates to a sewage treatment system for an artificial wetland primarily, which comprises a bar screen, a water-collecting tank, a flocculation drug mixing tank, a sedimentation tank, an aeration tank and the artificial wetland connected in turn, wherein the base material of the artificial wetland comprises one or more of sand soil mixture, crushed stone, zeolite, limestone, coal slag, steel slag, blast furnace slag, crushed stone, porcelain granules, melon seed piece and pebble; the water outlet of the sedimentation tank is provided with an overflow weir for yielding water; and a stirring paddle is arranged in the flocculation drug mixing tank. The sewage treatment system greatly reduces the concentration of pollutants entering the sewage in the artificial wetland, and certain pollutants difficult to perform biochemical treatment can also be taken out in a mode of flocculation sedimentation, thus the content of the pollutants entering the sewage in the artificial wetland is reduced so as to reduce the area of the artificial wetland, reduce the sedimentation of the pollutants in the artificial wetland, and avoid the generation of the problems of blockage and the like. The sewage treatment system is mainly adapted to domestic sewage and other similar organic sewage.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a synthetic wetland-based comprehensive sewage treatment system combined with various treatment methods, which belongs to the field of environmental protection. Background technique [0002] Since 1804, the British first used sedimentation and filtration technology as a centralized water treatment plant. In 1884, the Americans invented the coagulation, sedimentation, filtration, and chlorine disinfection technology, which has been used for 120 years. There are new discoveries and improvements in treatment, but the treatment process of domestic water basically remains the same, essentially no update and breakthrough. However, the water source to be treated has undergone great changes: the water source a hundred years ago was not polluted due to the underdevelopment of industry and agriculture. Over the past few decades, the development of modern industry, especially the sudden and rap...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/52C02F3/32C02F3/34C02F3/12
CPCY02W10/10
Inventor 陈光亮
Owner HAISIBOTE BEIJING SCIENE & TECH
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