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Tridimensional gravity-flow type sewage processor

A sewage treatment device and self-flow technology, which is applied in the field of three-dimensional self-flow sewage treatment device, can solve the problems of little tail water treatment, etc., and achieve the effects of long service life, wide application range and low maintenance cost.

Inactive Publication Date: 2009-01-14
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment of tail water is relatively rare, and the current land value is very expensive, so many factories and enterprises seldom treat tail water

Method used

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  • Tridimensional gravity-flow type sewage processor
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Embodiment Construction

[0019] Referring to the accompanying drawings, the three-dimensional self-flowing sewage treatment device is composed of several box-type pool units 3 with an isosceles trapezoidal longitudinal section that are alternately stacked and supported on the bracket 1 from bottom to top. The slope of the isosceles trapezoid is 5- 15 degrees. There are several PVC baffles 4 that make the water flow direction S-shaped in each pool unit. In the illustrated example, there are five pool units, and four PVC baffles are arranged in each pool unit (see figure 2 ), one end of each PVC baffle is fixed to the pool wall, and the other end is spaced from the pool wall, and the fixed ends of the four PVC baffles and the pool wall are alternated successively, so that the water flow direction can be S-shaped. Each pool unit is provided with a substrate filler 7, and a water outlet 5 is provided at the bottom at the end of the water flow to facilitate water flow to the next pool unit. A sampling po...

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Abstract

The invention discloses a stereoscopic self-flowing sewage treatment device which is composed of a plurality of box type water pond units having isosceles trapezoid shape longitudinal sections and superposed and supported on a support from bottom to top alternately by a rate of gradient, each water pond unit is provided with a plurality of PVC baffles making the water flow direction show S shape, each water pond unit is equipped with a substrate filler, and a water outlet is arranged at the bottom thereof at the tail end of water flow, a water valve is disposed on the side wall of each water pond unit, plants are planted in the uppermost water pond unit, and microorganisms are inoculated in the rest water pond units. The sewage treatment device has advantages of low investment, low cost of maintenance, long useful life, facilitating the sampling at any moment and water quality detection, saving land effectively, beautifying the environment and broad application scope, and can be used for treating sewage in rural districts and residential areas in small towns.

Description

technical field [0001] The invention relates to a sewage treatment device, in particular to a three-dimensional self-flowing sewage treatment device. Background technique [0002] Eutrophication of water body has become a worldwide environmental problem. According to a survey by the International Lake Environment Council (ILEC), most lakes in the world are suffering from eutrophication in varying degrees, with 54% in the Asia-Pacific region, 53% in Europe, 28% in North America, and 41% in South America. According to the survey conducted by the Ministry of Water Resources of China in 2004, the nutrient status of 49 lakes was evaluated, 17 lakes were in the mesotrophic state, and 32 lakes were in the eutrophic state; and among the five major freshwater lakes in China, Taihu Lake, Hongze Lake, Chaohu Lake has reached the level of eutrophication. Although Poyang Lake and Dongting Lake maintain the mesotrophic level at present, the content of phosphorus and nitrogen is relativel...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/32
Inventor 郝虎林向律成杨肖娥王小忠
Owner ZHEJIANG UNIV
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