High-speed train motor train unit vehicle-mounted toilet fecal sewage on-line direct drainage treatment method and treatment equipment

Abstract

The invention relates to the field of high-speed rail equipment vehicle-mounted toilet water treatment equipment, in particular to a high-speed rail motor train unit vehicle-mounted toilet fecal sewage on-line direct drainage treatment method and treatment equipment. The invention aims to solve the problems of short required treatment time, limited space and high treatment standard of vehicle-mounted toilet excrement water online treatment equipment in a high-speed rail motor train unit. The method comprises the technological processes of crushing, flocculation, solid-liquid separation, electro-catalysis, biological deodorization and the like. The method has the most prominent advantages that the flocculation effect is achieved by utilizing micropores in volcanic rock to achieve ion replacement with organic matter in sewage, the organic matter in excrement is flocculated out through ion replacement, no new solid waste is generated, treatment is efficient, and the organic matter degradation pretreatment rate is high.

Description

technical field [0001] The invention relates to the field of water treatment equipment for on-board toilets of high-speed rail equipment, in particular to an online direct drainage treatment method and equipment for excrement and sewage in on-board toilets of high-speed rail EMUs. Background technique [0002] With the current development of domestic and international sewage treatment technology, the treatment of human feces water is still a difficult research topic, focusing on the on-line treatment of feces water in toilets of high-speed rail EMUs. Many domestic enterprises, colleges and other scientific research departments are working on Organizational technical research and subject research are faced with major difficulties and bottlenecks in the following aspects: [0003] 1. The processing method is limited by the processing time and processing space, and the time requirement is controlled within 18 hours. In the high-speed rail and EMU toilets, the total space size L...

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Problems solved by technology

[0003] 1. The processing method is limited by the processing time and processing space, and the time requirement is controlled within 18 hours. In the high-speed rail and EMU toilets, the total space size L*S*H of the processing equipment is required to be controlled within 2.9m*0.8m* Within the range of 0.48m, the current domestic conventional processing technology cannot guarantee the time and space at all, and it is necessary to seek new technological breakthroughs

[0004] 2. The second difficulty in the treatment of feces water in toilets of high-speed rail EMUs is the unconventional living water quality with high concentration and difficult to degrade. Most of the passengers who take the high-speed rail travel for a short distance of a few hours, urinate a lot and defecate very little, plus the toilet The vacuum toilet collection device is used, and the amount of water used for flushing the toilet at a time is very small, which results in several main assessment indicators in the raw water in the toilet collection dirt tank being very high, including: chemical oxygen demand (COD) As high as 9000-14000mg / L, ammonia nitrogen 2000-3000mg / L, which brings great difficulty to biochemical treatment

[0005] 3. At present, the domestic use of electrocatalysis and other electrochemical treatment processes has developed to a certain extent, and the technology is becoming more and more mature, but there are also two difficulties: first, such high concentration of feces water will increase the electrocatalytic treatment equipment. The higher the concentration of water, the greater the power consumption of processing, the high power of processing equipment, and the large size of equipment configuration

Second, the electrode plate of the electrocatalytic equipment is coated with titanium alloy material. Due to the impurities such as fine suspended particles in the sewage, they are easily adsorbed on the surface of the plate under the action of the electrode, which will affect and reduce the conductivity of the plate. However, the efficiency of electrocatalytic treatment is reduced, so the plate of electrocatalytic equipment has high requirements on the cleanliness of fecal water. Domestic technical research and development teams use filter element filtration as a pretreatment solution, which will not only cause frequent blockages, but also use backwashing It will also greatly increase the production cost of the filter element, the efficiency is low, and it needs a special person to maintain it regularly and regularly. At present, there is no mature application suitable for the pretreatment of excrement water in the toilet of the high-speed rail EMU.

[0006] 4. Microbial treatment technology cannot be realized in a short period of time, and it is obviously not suitable for the application of feces water pretreatment in the on-board toilet of high-speed rail EMUs

[0007] 5. Domestic conventional chemical flocculants such as PAC polyaluminium chloride can only flocculate suspended solids and a small part of organic matter insoluble in water, which has no obvious effect on reducing power consumption for electrocatalytic treatment, and will form New Hazardous Solid Waste

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