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Bio-toilet system with subcritical hydrothermal liquefaction as core and fecaluria treatment method

A subcritical water and toilet technology, which is applied in the treatment of black water in toilets, sludge treatment through temperature control, and adaptation to climate change. Low-level problems, to achieve good environmental and economic benefits, complete harmlessness, and ensure biological safety

Active Publication Date: 2019-01-18
陕西圣昊朗道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, domestic feces and urine are mostly treated with biological methods (aerobic activated sludge method, high-temperature rapid composting, etc.), and the traditional treatment technology has low harmless efficiency and long treatment cycle, which has great environmental and health risks.
Therefore, there is an urgent need for a treatment system and process that can solve the problems of low environmental acceptance rate of urban waste, incomplete harmlessness, and low efficiency of resource utilization

Method used

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  • Bio-toilet system with subcritical hydrothermal liquefaction as core and fecaluria treatment method
  • Bio-toilet system with subcritical hydrothermal liquefaction as core and fecaluria treatment method
  • Bio-toilet system with subcritical hydrothermal liquefaction as core and fecaluria treatment method

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Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, an ecological toilet system with subcritical hydrothermal liquefaction as the core disclosed by the present invention includes a material buffer tank 1, a subcritical hydrothermal liquefaction unit 2, a high-temperature heat exchanger 3, a low-temperature heat exchanger 4, a solid-liquid Separator 5, anaerobic influent buffer tank 6, high-temperature anaerobic unit 7, biogas storage and purification device 8, biogas combustion boiler 9, dry granulation unit 10, combined membrane process unit 11, reuse water tank 12 and air cooling tower 14.

[0039] The material buffer tank 1, the subcritical hydrothermal liquefaction unit 2, the high temperature heat exchanger 3, the low temperature heat exchanger 4 and the solid-liquid separator 5 are connected sequentially through pipelines, and the solid outlet of the solid-liquid separator 5 is connected to the drying and granulation unit 10 The solid inlet is connected, the liquid outlet of the solid-liq...

Embodiment 2

[0056] Such as figure 2 As shown, the difference between this embodiment and embodiment 1 is as follows:

[0057] see figure 2 , an ecological toilet system with subcritical hydrothermal liquefaction as the core disclosed by the present invention also includes a heat transfer oil boiler 13; wherein, a biogas combustion boiler 9, a subcritical hydrothermal liquefaction unit 2, a dry granulation unit 10 and a high temperature exchange The oil ports of the heater 3 are connected sequentially through pipelines; the heat transfer oil boiler 13 is heated by electric heating and high-temperature flue gas from the biogas combustion boiler 9 .

[0058] The oil outlet of the heat-conducting oil boiler 13 is connected to the oil inlet of the biogas combustion boiler 9, the oil outlet of the biogas combustion boiler 9 is connected to the oil inlet of the subcritical hydrothermal liquefaction unit 2, and the outlet of the subcritical hydrothermal liquefaction unit 2 The oil port is con...

Embodiment 3

[0070] Such as image 3 As shown, the differences between this embodiment and embodiment 1 and embodiment 2 are as follows:

[0071] When the homogeneous material in the material buffer tank 1 enters the subcritical hydrothermal liquefaction unit 2, a catalyst and an oxidant are added to the subcritical hydrothermal liquefaction unit 2, and the temperature is controlled at 180°C to 260°C to achieve inactivation of pathogens, etc. The molecular level is completely decomposed into CO 2 .

[0072] The harmless mixed material passed through the subcritical hydrothermal liquefaction unit 2 enters the solid-liquid separator 5 and the dry granulation unit 10 for solid-liquid separation and dry granulation of solid matter, and the solid matrix produced is inorganic salt.

[0073] In summary, the present invention uses subcritical hydrothermal liquefaction technology as the core to realize the harmless disposal of toilet excrement; combined with heat transfer oil boiler 13, biogas co...

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Abstract

The invention discloses a bio-toilet system with subcritical hydrothermal liquefaction as a core and a fecaluria treatment method and belongs to the technical field of chemical industry and environmental protection. The bio-toilet system comprises a material buffer tank, a subcritical hydrothermal liquefaction unit, a high temperature heat exchanger, a low temperature heat exchanger, a solid-liquid separator, an anaerobic water inlet buffer pool, a high temperature anaerobic unit, a biogas storage purification device, a biogas combustion boiler, a drying pelletization unit, a combined membraneprocess unit, a recycling water pool, a conduction oil boiler and an air cooling tower. According to the bio-toilet system with subcritical hydrothermal liquefaction as the core and the fecaluria treatment method, the subcritical hydrothermal liquefaction is used as the technical core, and meanwhile the high temperature heat exchanger, the low temperature heat exchanger, the solid-liquid separator, a high temperature anaerobic process, a biogas combustion system and the drying pelletization unit are combined, fecaluria substances are harmlessly stabilized into landscaping water, an organic fertilizer or an organic salt; bad smell is treated by high temperature combustion, the harmless disposal of gas, liquid and solid is implemented, excellent environmental benefits and economic benefitsare provided, and multi-level utilization and optimization of energies are implemented in combination with the conduction oil boiler.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and environmental protection, and specifically relates to an ecological toilet system and a method for treating feces and urine with subcritical water thermal liquefaction as the core. Background technique [0002] my country has a large population. With the improvement of living standards, the amount of feces produced by cities is increasing. Many cities have begun to pay attention to the treatment of feces. In the past, most of the manure was transported to agricultural production and used as fertilizer. With the large-scale operation of agricultural production, the agricultural production efficiency of manure is low, coupled with the extensive use of chemical fertilizers, and the requirements of sanitation and epidemic prevention in many large cities, manure cannot be directly fertilized without being matured, so the amount of manure accepted is decreasing day by day. Reasonable harm...

Claims

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Application Information

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IPC IPC(8): C02F11/18C05F3/06C05F3/04
CPCC02F11/18C02F2103/005C05F3/04C05F3/06Y02A40/20Y02E50/30
Inventor 王树众雷杰杨闯徐甜甜杨健乔赵军
Owner 陕西圣昊朗道科技有限公司
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