Modular railway train excrement collector excrement wastewater treatment method

A treatment method and fecal wastewater technology, applied in chemical instruments and methods, water/sewage treatment, anaerobic digestion treatment, etc., to achieve the effect of solving insufficient space, efficient and fast wastewater treatment, and increasing the number of microorganisms

Pending Publication Date: 2020-09-11
昆明铁路局集团科学技术研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the rapid development of domestic high-speed railway trains and the urgent problem of high-speed rail toilet sewage, the present invention provides a modular railway train toilet feces

Method used

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  • Modular railway train excrement collector excrement wastewater treatment method
  • Modular railway train excrement collector excrement wastewater treatment method
  • Modular railway train excrement collector excrement wastewater treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Taking a distribution center of a high-speed railway station in Kunming, Yunnan Province as an example, because it is a key transportation hub and there are many trains at the station, the concentration of fecal waste water in the high-speed railway toilet collector is high and the water volume is large. The waste water from the toilet is extracted by the vacuum system and placed in the septic tank. The effluent COD of the septic tank is 5800mg / L, the SS is 2650mg / L, the ammonia nitrogen is 1500mg / L, the total nitrogen is 1800mg / L, and the total phosphorus is 200mg / L.

[0044] like figure 1 As shown, the sewage goes through the pretreatment system → nitrogen and phosphorus removal system, and the sludge generated during the sewage treatment process enters the sludge treatment system. The specific treatment steps are as follows:

[0045] Pharmacy configuration; respectively prepare 25% polyaluminum chloride and 0.2% polyacrylamide solutions for use;

[0046] Step A: P...

Embodiment 2

[0051] Taking an EMU in Kunming, Yunnan as an example, the COD of septic tank effluent wastewater is 4700mg / L, SS is 1820mg / L, ammonia nitrogen is 1400mg / L, total nitrogen is 1650mg / L, and total phosphorus is 178mg / L. The trains managed by the train will unload sewage at this station, and the amount of sewage discharged is relatively small. The municipal pipe network of the train station is well-arranged and has been negotiated with the urban sewage treatment plant. It can be discharged to the municipal management if it meets the sewage discharge standard of the urban sewage treatment plant. net, followed by subsequent treatment by urban sewage treatment plants.

[0052] According to the processing requirements, the modular configuration of the processing technology only needs to adopt the processing technology described in the present invention, which is a pretreatment system + nitrogen and phosphorus removal system, and the sludge generated in the water treatment process ente...

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Abstract

The invention provides a modular railway train excrement collector excrement wastewater treatment method. The method adopts a treatment device which sequentially comprises a pretreatment system and anitrogen and phosphorus removal system, wherein the pretreatment system sequentially comprises a first volute dehydrator and an air flotation machine; the nitrogen and phosphorus removal system sequentially comprises a short-cut nitrification and denitrification module, an anaerobic ammonia oxidation tank and a synchronous nitrification and denitrification module, the short-cut nitrification and denitrification module sequentially comprises a denitrification tank, a nitrosation tank and a first sedimentation tank, and the synchronous nitrification and denitrification module sequentially comprises a membrane biofilter and a second sedimentation tank. The device further comprises a sludge treatment system, and the sludge treatment system sequentially comprises a sludge sedimentation tank anda second volute dehydrator; the treatment method correspondingly comprises a pretreatment step, a nitrogen and phosphorus removal step, and a sludge treatment step. Efficient denitrification is achieved through combination of multiple modules and multiple stages of reaction tanks, and the operation cost is reduced by 50% compared with the prior art.

Description

technical field [0001] The invention relates to a device and method for treating feces and waste water of a modular railway train toilet collector, belonging to the field of railway train sewage treatment. Background technique [0002] With the rapid development of my country's social economy and the acceleration of urbanization, domestic high-speed railway trains (high-speed railway trains, hereinafter referred to as high-speed railways) are developing rapidly. According to reports, in 2008, my country's high-speed rail was opened, with a total mileage of 672 kilometers, accounting for less than 1% of the total operating mileage of railways. It can be seen that the construction of high-speed rail is developing very rapidly. [0003] The rapid development of high-speed rail has brought us fast and convenient transportation, shortened people's travel time, and made people travel more comfortable and convenient, but it also brought some problems. In the past, the toilets of ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/00C02F3/30C02F3/28C02F101/16C02F101/10
CPCC02F9/00C02F3/307C02F3/308C02F11/008C02F2101/105C02F2101/16C02F1/24C02F1/5245C02F1/56C02F3/28
Inventor 杨贵荣王耕捷张新锦官崇祺郭健曾进忠唐正飞薛松缪金顺罗靖昆刘东斌言海燕曹文娟陈亚利
Owner 昆明铁路局集团科学技术研究所
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