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Reutilizing method for drain washing water of train passenger car

A technology for carriages and trains, applied in the field of sewage purification and reuse, can solve problems such as water waste, and achieve the effects of reducing the number of water additions, simple structure and reasonable design scheme

Inactive Publication Date: 2007-05-02
WUZHONG INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

cause water waste

Method used

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  • Reutilizing method for drain washing water of train passenger car
  • Reutilizing method for drain washing water of train passenger car

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing, the present invention will be further described:

[0013] As shown in Figure 1, the wash basin 1 in the washroom passes through the grille basket 2 to trap large particles such as hair and solid particles with a diameter greater than one millimeter, and then enters the water collection tank 3, where the water collection tank 3 collects the washing water for preliminary precipitation. The upper part of the supernatant liquid is sent to the biochemical treatment tank 4. In the biochemical treatment tank 4, the washing drainage is in contact with activated carbon and oxygen, and the large porosity of the activated carbon and oxygen are used to generate an active biofilm to remove the organic matter in the washing drainage. After the screen basket 2 and the biochemical treatment tank 4, the water quality reaches the water quality standard, and the treated washing drainage is stored in the intermediate storage tank 5 as water fo...

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Abstract

The present invention relates to sewage purifying and re-utilizing method and device, and is especially washing water purifying and re-utilizing method and device for train passenger car. There are lattice basket between the drainage pipe of the washing basin and the biochemical processing tank, water passage between the biochemical processing tank and the middle water storage tank, membrane processing unit between the middle water storage tank and train water tank, and flushing water pressurizing unit connected to the middle water storage tank and the train water tank. The washing water is processed into intermediate water for flushing toilet and the excessive intermediate water is further processed into drinking water and returned to the train water tank. The present invention can save water over 50%.

Description

technical field [0001] The invention relates to a method for purifying and reusing sewage, in particular to a method for reusing water for washing and draining passenger compartments of trains. Background technique [0002] For a long time, the water supply for passenger trains in my country, including passenger washing, washing, drinking and toilet flushing, has been supplied by on-board water tanks. Due to the limited volume of the on-board water tank, it cannot meet the water demand of passengers; trains need to stop at stations frequently to replenish water, resulting in many stops and long stops, which seriously affects the efficiency of train operation. At the same time, the washing and washing water for passengers is directly discharged; the toilet flushing water is directly supplied by the water tank. cause waste of water. Contents of the invention [0003] The purpose of the present invention is to provide a method for reuse of washing and drainage in train pass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D35/00
Inventor 冯奇峰马玉山周永兴李班刘海平
Owner WUZHONG INSTR
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