Modular railway train excrement collector excrement wastewater long-term treatment method

A treatment method and technology for fecal wastewater, applied in chemical instruments and methods, oxidized water/sewage treatment, multi-stage water treatment, etc., to achieve the effect of solving space shortage, efficient and fast wastewater treatment, and optimized design

Pending Publication Date: 2020-09-11
中铁环境科技工程有限公司
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  • Abstract
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  • Claims
  • Application Information

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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 long-term treatment method
  • Modular railway train excrement collector excrement wastewater long-term treatment method
  • Modular railway train excrement collector excrement wastewater long-term treatment method

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Embodiment 1

[0046] 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. The treated wastewater is required to meet the water quality requirements for urban greening and vehicle washing in the "Urban Sewage Recycling and Utilization of Urban Miscellaneous Water Quality" (GB / T 18920—2002) standard.

[0047] Such as figure 1 As shown, the sewage goes through the pretreatment system→nitrogen and phosphorus removal system→advanced treatment system, and the sludge generated during...

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Abstract

The invention provides a modular railway train excrement collector excrement wastewater long-term treatment method, comprising a treatment device. The treatment device comprises a pretreatment systemand a nitrogen and phosphorus removal system which are arranged in sequence, wherein the pretreatment system comprises a first volute dehydrator and an air flotation machine which are arranged in sequence; the nitrogen and phosphorus removal system comprises a short-cut nitrification and denitrification module, an anaerobic ammonia oxidation tank and a synchronous nitrification and denitrificationmodule which are arranged in sequence, the short-cut nitrification and denitrification module comprises a denitrification tank, a nitrosation tank and a first sedimentation tank which are arranged insequence, and the synchronous nitrification and denitrification module comprises a membrane biofilter and a second sedimentation tank which are arranged in sequence. The device further comprises a sludge treatment system and an advanced treatment system; the treatment method correspondingly comprises a pretreatment step, a nitrogen and phosphorus removal step, an advanced treatment 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): C02F9/14C02F11/125C02F101/10C02F101/16
CPCC02F9/00C02F11/125C02F1/001C02F1/24C02F1/5236C02F1/56C02F2301/08C02F2101/105C02F3/302C02F2101/16C02F1/72C02F2303/04
Inventor 言海燕刘东斌曹文娟陈亚利徐德良郭小斌
Owner 中铁环境科技工程有限公司
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