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Sewage treatment process and device for outdoor flush toilets in alpine regions

A technology for high-cold regions and sewage treatment, applied in biological water/sewage treatment, water/sludge/sewage treatment, biological sludge treatment, etc. It has the effect of strong resistance to temperature disturbance, strong applicability and simple steps for problems such as organic matter decomposition ability and denitrification bacteria sensitivity.

Active Publication Date: 2020-06-02
北京志合沃特环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in sewage treatment, the optimal water temperature is 20-25°C, and it is often difficult for sewage in alpine regions to meet the standard, mainly because: (1) Low temperature can significantly reduce the activity, quantity and population distribution of microorganisms in activated sludge, and reduce the impact of microorganisms on The ability to decompose organic matter; (2) During seasonal cooling, denitrifying bacteria are more sensitive than nitrifying bacteria, and the denitrification process will precede the nitrification process, resulting in poor denitrification effect; (3) The high altitude makes the oxygen partial pressure in the environment relatively low. Low, the action of aerobic microorganisms in the sewage treatment system is inhibited

Method used

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  • Sewage treatment process and device for outdoor flush toilets in alpine regions
  • Sewage treatment process and device for outdoor flush toilets in alpine regions
  • Sewage treatment process and device for outdoor flush toilets in alpine regions

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Experimental program
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Embodiment approach

[0056] According to a preferred embodiment of the present invention, the volume ratio of the three compartments in the septic tank 1 is 2:1:3.

[0057] Among them, the ratio of the cell volume near the water inlet of the septic tank: the volume of the middle cell: the volume of the cell near the water outlet of the septic tank is 2:1:3.

[0058] Further, the retention time of the septic tank 1 for sludge and suspended solids is not less than 45 days.

[0059] In the present invention, the three-compartment septic tank can retain part of the suspended particles in the sedimented sewage, decompose and sterilize, and realize the separation of mud and water, so that the sewage from flushing toilets can be preliminarily purified.

[0060] In step 2, the sewage after preliminary purification is adjusted, and then deep purification is carried out.

[0061] In order to ensure the stability of the subsequent deep purification treatment, the toilet sewage after preliminary purification...

Embodiment 1

[0200] In the outdoor flushing toilet sewage treatment device adopted in this embodiment, the septic tank is a three-compartment septic tank, and the volume ratio of the three compartments is 2:1:3; the first filling mechanism and the second filling mechanism are both Active corrugated packing; the outer diameter of the aeration ring of the aerobic tank is 95% of the inner diameter of the aerobic tank;

[0201] The aeration layer has 4 layers, which are arranged in parallel up and down. Each aeration layer is concentrically arranged with 4 aeration rings from the inside to the outside; during the process of low-temperature sewage treatment, the air intake of the innermost aeration ring of the four-layer aeration layer The valves are all closed, so that the central area forms an anoxic zone;

[0202] The sludge used in the active filler film hanging in the anaerobic tank, anoxic tank and aerobic tank is prepared according to the following steps:

[0203] (i) Get the sludge in ...

Embodiment 2

[0210] In the outdoor flushing toilet sewage treatment device adopted in this embodiment, the septic tank is a three-compartment septic tank, and the volume ratio of the three compartments is 2:1:3; the first filling mechanism and the second filling mechanism are both Active corrugated packing; the outer diameter of the aeration ring of the aerobic tank is 90% of the inner diameter of the aerobic tank;

[0211] The aeration layer has 4 layers, which are arranged in parallel up and down. Each aeration layer is concentrically arranged with 4 aeration rings from the inside to the outside; during the process of low-temperature sewage treatment, the air intake of the innermost aeration ring of the four-layer aeration layer The valves are all closed, so that the central area forms an anoxic zone;

[0212] The sludge used in the active filler film hanging in the anaerobic tank, anoxic tank and aerobic tank is prepared according to the following steps:

[0213] (i) Get the sludge in ...

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Abstract

The invention discloses a sewage treatment process for an outdoor flush toilet in an alpine region. The process comprises the following steps: 1, preliminarily purifying sewage of a flush toilet; 2, adjusting the sewage subjected to preliminary purification, and then carrying out deep purification; and 3, conveying the deeply purified sewage to an outdoor toilet water tank so as to be used for flushing again. The sewage treatment process for the outdoor flush toilet in the alpine region, provided by the invention, has the advantages of simple steps, controllable operation, low cost, strong applicability, high temperature-disturbance resistance and good sewage treatment effect in a low-temperature environment.

Description

technical field [0001] The invention relates to the field of rural domestic sewage treatment, in particular to the treatment of rural domestic sewage in alpine regions, and in particular to a sewage treatment process and device for outdoor flushing toilets in alpine regions. Background technique [0002] "Toilets are the measure of human civilization and an important manifestation of the civilization of a country and region." The United Nations Millennium Development Goals report pointed out that by 2015, the coverage rate of global basic sanitation facilities was only 67%, and the problem of fecal source pollution is widespread all over the world. 70% of infectious diseases in developing countries are related to biological contamination of feces. Improving the level of harmlessness, sanitation, and resource utilization of toilets is an important measure for my country to implement the strategy of rural revitalization. At present, the task of improving toilets in rural area...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F11/04C02F101/30
CPCC02F3/308C02F11/04C02F2101/30Y02W10/10
Inventor 李广胜塔莉王正阳乔永波黄悦宋斌
Owner 北京志合沃特环境科技有限公司
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