Method for treating land with domestic sewage at water-source forest land of mountain area

A land treatment and domestic sewage technology, applied in the field of water pollution treatment, can solve the problems of unguaranteed removal rate, unsatisfactory water discharge effect, single wetland system, etc., achieve good sewage treatment effect, low construction and operation costs, and increase dissolved oxygen volume effect

Inactive Publication Date: 2010-07-07
GUANGXI UNIV
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Problems solved by technology

[0009] At present, the popularization and application of domestic constructed wetland technology is mainly a wetland system with a single flow type, which leads to the inability to guarantee a high removal rate of various pollution indicators, and the water output effect is not ideal

Method used

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  • Method for treating land with domestic sewage at water-source forest land of mountain area
  • Method for treating land with domestic sewage at water-source forest land of mountain area
  • Method for treating land with domestic sewage at water-source forest land of mountain area

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Embodiment

[0032] The Yao villages under the jurisdiction of the Dayao Mountain Water Source Forest Reserve in Guangxi are scattered on the mountainside of Dayao Mountain. The applicant conducted an applied research experiment on sewage treatment in the area under its jurisdiction. The structure of the test equipment is as follows: figure 2 shown. Treated water volume 50m 3 / d; hydrolytic acidification pool area 18m 2 , volume is 36m 3 ;Horizontal subsurface flow wetland area 120m 2 , volume is 180m 3 ;The area of ​​vertical underflow wetland is 120m 2 , volume is 180m 3 ; Ecological reservoir area 100m 2 , volume is 50m 3 . The water inlet and outlet pipes of the hydrolytic acidification tank, the high-level tank of the water distribution system, and the perforated distribution pipes are all made of PVC pipes, and the perforated water collection pipes are made of PE pipes. The hydrolytic acidification tank is separated by baffle walls. The modified soil used as the top layer o...

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Abstract

The invention relates to a method for treating a land with domestic sewage at a water-source forest land of a mountain area, which is formed by connecting two stages of land treatment units of a horizontal undercurrent wet land and a vertical undercurrent wet land in series, wherein the two stages of land treatment units are of the step shape in a buried form; a water distribution device for preposition hydrolysis-acidification pre-treatment is arranged at the front end of the horizontal undercurrent wet land; the yielding water of the vertical undercurrent wet land is directly spouted into an ecological reservoir. The method effectively removes COD, BOD, SS, heavy metal, ammonia, nitrogen and phosphorus in the sewage and can realize self oxygenation without power; the sewage can be well biodegraded, and the modified soil is taken as the main filler of the wet lands, thereby effectively avoiding that the traditional artificial wet land is easy to be blocked by the filler. The treatment method has the advantages of low construction cost and operating cost, easy management, good sewage treatment effect and strong impact-load resistance.

Description

technical field [0001] The invention belongs to the field of water pollution treatment, in particular to a land treatment method for domestic sewage in mountainous water sources and woodlands. Background technique [0002] Water source woodland is the source of many important water resources protection areas in my country. Many ethnic minority compatriots have lived in the middle of the mountain deep in the mountains for generations. Their water source is the mountain stream where they live. The domestic sewage is discharged naturally without any treatment. Non-point source pollution will eventually lead to water source pollution in water resource protection areas. [0003] Sewage land treatment is a treatment method that utilizes an ecosystem composed of soil-microbe-plants to purify sewage. Generally, it consists of sewage pretreatment facilities, sewage regulation and storage facilities, sewage transportation and control systems, constructed wetland systems, collection o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/34
CPCY02W10/10
Inventor 冼萍梁骥郑双金郭健张健
Owner GUANGXI UNIV
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