Method and device for treating and reusing train washing water

Abstract

The invention discloses a method for treating and reusing train washing water. After the water from the washing basin is removed through a screen filter to remove large particles, it is collected into the water inlet buffer zone, and is turned back through the bottom of the baffle to flow into the electrolysis in a push flow state. Oxidation zone, in the electrolytic oxidation zone, the back-and-forth push-flow flow state flows through the built-in electrolytic plate, and through the single or multiple actions of electrolytic oxidation, electrolytic air flotation and electrolytic flocculation, the washing water is synergistically purified; after electrolytic purification The final water overflows to the produced water collection area through the upper part of the baffle, and the water in the produced water collection area is pumped into the flushing water booster tank in real time through the reuse water pump for toilet flushing. The invention also discloses the device of the method. The invention saves more than 50% of water consumption, can effectively reduce the load of the vehicle-mounted water tank, reduces the frequency of trains stopping at stations to replenish water, and solves the contradiction between water supply and water consumption for trains.

Description

technical field [0001] The invention relates to a method and a device for purifying and reusing gray water, in particular to a method and a device for using the treated washing water of passenger trains as toilet flushing water for train vacuum toilets. Background technique [0002] At present, foreign scholars such as Robert EEden have proposed that on long-distance travel trains, the washing water used by passengers only accounts for about 0.1% of pollution impurities, which is less than 3.5% of seawater, and can be reused after proper treatment. [0003] For a long time, according to the situation of the drainage system of each passenger train in our country, the old habit of one-time use and direct discharge to the track is continued, or the waste at the bottom of the car is sucked by the vacuum pipeline through the gray water collection box. Dirt box. The above discharge method of washing water, on the one hand, the washing water of passengers is directly discharged, w...

AI Technical Summary

Problems solved by technology

The above discharge method of washing water, on the one hand, the washing water of passengers is directly discharged, while the toilet flushing water is directly supplied with clean water from the water tank, resulting in waste of water resources and exacerbating the already tense situation of water use on the train; on the other hand, if the washing water is vacuum collected To the fecal dirt tank, it increases the volume load of the train dirt tank

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