River channel purification system for processing rural domestic sewage

A domestic sewage and river purification technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve pollution and other problems

Inactive Publication Date: 2011-02-16
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Utilize abandoned river courses and use plant fences to intercept rural domestic sewage. The sewage is purified through artificial bionic material contact oxidation ponds, vertical flow artificial wetland

Method used

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  • River channel purification system for processing rural domestic sewage
  • River channel purification system for processing rural domestic sewage
  • River channel purification system for processing rural domestic sewage

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] Further illustrate the present invention below in conjunction with accompanying drawing

[0035] Taking a certain river in northern Jiangsu as an example, the experimental research was carried out. The flow velocity of this river is about 0.1 m / s ~0.3 m / s, and the pollutants received are mainly organic matter, nitrogen, phosphorus and suspended solids, etc., which is a typical domestic pollution type river. A domestic sewage purification system was built in the river, using plant grid settlement (plant grid settlement unit), artificial bionic material contact oxidation tank (contact oxidation unit), vertical flow artificial wetland (vertical flow artificial wetland unit) and floating water plants (floating water plant purification unit) four processing units connected in series (see figure 1 ), core technology - artificial bionic material contact oxidation technology and vertical flow constructed wetland technology, using bionic materials to absorb and degrade microorga...

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Abstract

The invention discloses a river channel purification system for processing rural domestic sewage, belonging to the field of rural sewage processing. The system is characterized in that a processing unit is established by utilizing a waste river channel or a swale near-natural type channel; a plant grid sedimentation unit, an artificial biomimetic material contact oxidation unit, a vertical current artificial wetland unit and a floating plant unit are successively arranged from top to bottom according to the direction of water flow; and the rural domestic sewage is processed successively through the four processing units so as to finally achieve the purpose of improving water quality. The system has the advantages that the removing rates of CODcr, SS, NH3-N, TN and TP of the domestic sewage entering the system respectively reach 77.1%, 84.1%, 70%, 68% and 58.8% through the application of the invention; the effect of reducing the pollution load and improving the water quality is realized; and the system provides the guarantee to the improvement of the water environment quality in a downstream river.

Description

technical field [0001] The invention relates to a rural water pollution control system. Specifically, the present invention is a river purification system for treating domestic sewage in rural areas. Background technique [0002] According to estimates, the rural areas of the country produce about 8 billion tons of domestic sewage every year, and 96% of the villages do not have drainage channels and sewage treatment systems. Domestic sewage is discharged randomly, which seriously pollutes the rural ecological environment and directly threatens the health and well-being of the broad masses of farmers. Rural economic development. [0003] Rural domestic sewage is mainly toilet flushing sewage, laundry, rice washing, vegetable washing, and bathing wastewater. Sewage is mainly domestic waste and human excrement, generally does not contain toxic substances, often contains nitrogen, phosphorus and other nutrients, as well as a large number of bacteria, viruses and parasite eggs....

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
CPCY02W10/10
Inventor 钱新袁兴程张玉超张瑞斌窦艳艳
Owner NANJING UNIV
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