High-concentration sewage treatment system for artificial wetland primarily

Abstract

The invention relates to a high-concentration sewage treatment system for an artificial wetland primarily, which comprises an anoxic hydrolysis pool, an active sludge pool, a secondary sedimentation tank and the artificial wetland, wherein the yielding water of the anoxic hydrolysis pool is connected into the active sludge pool, the yielding water of the active sludge pool is connected into the secondary sedimentation tank, and the yielding water of the secondary sedimentation tank is connected into the artificial wetland; the bottom of the anoxic hydrolysis pool is provided with a sludge-scrapping device, and the bottom of the active sludge pool is provided with an aerator; and the artificial wetland adopts a horizontal baffling structure, and the water outlet is provided with a water storage tank. The high-concentration sewage treatment system has a simple structure and reasonable process, the anoxic hydrolysis pool decomposes macromolecule organic matters into small molecule organic matters which are easy for aerobic biochemical treatment, and the active sludge pool and the secondary sedimentation tank further reduce the pollutants in the water and improve the oxygen content in the water so as to improve the biochemical process in the artificial wetland, thus the high-concentration sewage can be treated efficiently and good purification effect can be obtained. The high-concentration sewage treatment system is adapted to the treatment of high-concentration 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...

AI Technical Summary

Problems solved by technology

These two aerobic methods have their own advantages and disadvantages, and both have a long history of development. Generally speaking, the former has a better effect on the removal of organic pollutants and requires lower capital investment, but the operation is more complicated and more It is used in the occasion of large water volume: the latter is more suitable for the impact load caused by the change of water quality and water volume, and the operation is relatively simple, so it is more used in the treatment of small water volume or slightly polluted water.

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