Sewage treatment method and equipment thereof

A sewage treatment method and sewage technology, applied in the field of environmental engineering, to achieve the effects of water quality improvement and reuse, protection of the ecological environment, and promotion of restoration

Inactive Publication Date: 2004-08-25
INST OF AQUATIC LIFE ACAD SINICA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sewage treatment method, which is easy to implement, easy to operate, and can promote water reuse; realize improvement of ground water quality, protect drinking water source water body; solve the problem of scattered sewage treatment in small and medium-sized towns, and is also a great solution to large-scale A good supplement for centralized treatment of urban sewage

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  • Sewage treatment method and equipment thereof
  • Sewage treatment method and equipment thereof

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Embodiment Construction

[0021] Below in conjunction with schematic diagram, the present invention is described in further detail:

[0022] according to figure 1 As known, the sewage first passes through the sedimentation tank (1), and the sedimentation tank (1) is made of waterproof material or brick mix to remove coarse particles and suspended solids; secondly, it enters the plug flow tank (2), and the plug flow tank (2) is Waterproof material or brick mix is ​​made into a pool with an inclination of 0.5-5%, filled with coarse gravel A (16) or crushed stone A with a particle size of 10-50mm, and planted on the coarse gravel A (16) or crushed stone A Aquatic and hygrophyte reed A (6) or cattail, wild rice, weed grass, grass grass, coix, sedge, ginger, black triangular, rush, canna, metasequoia, pool cedar, etc., horizontal strips on the water inlet surface Hole cloth water pipe (10), horizontally set band hole collecting pipe (11) at the bottom of the water outlet and lead upwards, the pipe diameter...

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Abstract

The present invention discloses a sewage treatment method and its installation. Said method incldues the following steps: firstly, making sewage pass through settling pond to removing hard grain and suspension; then feeding the sewage into flowing bed in which the gravels are filled and the aquatic plant and hydrophyte are planted so as to further reduce suspension in sewage and reduce COD of sewage; feeding the sewage into downward flowing pond-upward-flowing pond, in the artificial wet land the gravels and fine sand are filled and aquatic plant and hygrophyte are planted to degrade COD in the sewage, remove nitrogen and phosphorus, remove heavy metal and special pollutants of exogenous biological activity substance and phycotoxin, etc., the feeding it into water-quality modification pond in which the fine sand layer is filled and hydatophyte is planted to modifying water quality, finally discharging sewage meeting requirements for discharge and recovering it to reuse.

Description

technical field [0001] The invention relates to the field of environmental engineering, and more specifically relates to a sewage treatment method and a device for realizing the method. Background technique [0002] The conventional method of urban sewage purification is secondary biochemical treatment. After physical treatment such as sedimentation, it enters the aeration tank, undergoes biological treatment of activated sludge, and is discharged after re-sedimentation. The treatment effect is very good, and the oxygen-consuming substances in the water, especially the biochemical oxygen consumption, are greatly reduced, but the three costs of construction, operation and maintenance are too high. It is necessary to build facilities such as pools, pipe networks, pumping stations, etc. During operation, the electricity load for lifting and aeration is relatively large, and the sludge treatment is complicated. Overhaul and maintenance are required w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/58C02F3/32C02F9/14
Inventor 吴振斌雷志洪
Owner INST OF AQUATIC LIFE ACAD SINICA
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