CN105668968A - Harmless and resourceful treatment method for excrement - Google Patents

Harmless and resourceful treatment method for excrement Download PDF

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Publication number
CN105668968A
CN105668968A CN201610236908.1A CN201610236908A CN105668968A CN 105668968 A CN105668968 A CN 105668968A CN 201610236908 A CN201610236908 A CN 201610236908A CN 105668968 A CN105668968 A CN 105668968A
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China
Prior art keywords
excrement
processing method
decontamination
collection
urine
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CN201610236908.1A
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Chinese (zh)
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CN105668968B (en
Inventor
王焕升
张景来
杨雷
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Beijing University of Chemical Technology
Renmin University of China
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Beijing University of Chemical Technology
Renmin University of China
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/005—Black water originating from toilets
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/44—Time
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1011—Biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1011—Biomass
    • C10G2300/1018—Biomass of animal origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Processing Of Solid Wastes (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention belongs to the technical field of waste treatment, and particularly relates to a harmless and resourceful treatment method for excrement. The treatment method includes the specific steps that 1, excrement and urine are separated through an excrement-urine separator, and urine is subjected to harmless collection for agricultural use; 2, excrement is liquefied through a liquefaction device and then put into a storage barrel for harmless collection; 3, collected liquefied excrement is reacted in a reaction still where a catalyst is added, bio-oil is obtained, and after oil-water separation, water is discharged and treated. Compared with the prior art, according to the harmless and resourceful treatment method for excrement, urine obtained after excrement-urine separation does not contain pathogens and can be collected for agricultural use; liquefaction is carried out with a single toilet stool, few heating materials are needed, the heating mode is flexible, the fluidity of excrement is improved, collection and transportation of excrement are convenient, and thus collection or pipeline transportation of excrement of a whole community is achieved.

Description

A kind of decontamination of human excreta and recycling processing method
Technical field
The invention belongs to waste processing arts, it particularly relates to arrive a kind of decontamination of human excreta and recycling processing method.
Background technology
Present stage, the conventional processing method of urban night soil is that water rushes mode and enters municipal sewage plant through sewer pipe and be converted into sewage and process, and this way and has high input to consume great lot of water resources for cost, does not consider to reclaim feces as resource. In backward areas such as rural areas, the mode of night soil-treatment is common for the mode such as anaerobic fermentation, aerobic compost, and form anaerobic fermentation methane yield is not high and fermentation liquid is difficult by thus causing secondary pollution. Aerobic compost floor space is big, composting production agricultural use difficulty. All there is certain hygienic issues in two kinds of technology, and feces carries pathogen in transport process, and processing procedure is difficult to thoroughly innoxious.
At present, the harmless treatment research of China's feces has become focus. Chinese patent (CN103418604A) discloses integrated treatment and the Application way of a kind of swine excrement, including following methods step, the pig of liquid type urinated and cleans that water is same to be collected, then draining in methane-generating pit and ferment, for producing methane, biogas slurry can go back field; Solid kind pig manure being carried out same collection, then processed, by solid-liquid separation, liquid enters methane-generating pit; Solid and liquid are respectively processed recycling by this invention, change the mode of tradition Concentrated fermentation, improve utilization rate, but, its feces is still solid-state, is unfavorable for conveying, and feces is directly used in biogas, and utilization rate is relatively not high.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of easy decontamination of human excreta of program and recycling processing method.
A kind of decontamination of human excreta of the present invention and recycling processing method, the concrete steps of described processing method include: 1) by dung-urine separator, and by feces and urine separation, urine carries out after innoxious collection for agricultural use; 2) feces carries out post liquefaction by liquefying plant, is placed in storage barrel innoxious collection;3) the liquid feces of collection is added catalyst in a kettle. to react, obtain bio-oil, after oil-water separation, by water emission treatment.
A kind of decontamination of human excreta of the present invention and recycling processing method, described step 1) and 2) in, innoxious collection is to be collected or take out dung-cart to collect by pipeline.
A kind of decontamination of human excreta of the present invention and recycling processing method, described step 2) in, liquefaction process is heated with solar energy for thermal source, and temperature is 200-250 DEG C, and pressure is 3-6MPa, and heat time heating time is 0-30min, it is preferable that 1-30min.
A kind of decontamination of human excreta of the present invention and recycling processing method, described step 3) in, reactor adopts electrical heating or Electromagnetic Heating, and temperature is at 300-350 DEG C, and pressure is 10-20MPa, and heat time heating time is 30-60min.
A kind of decontamination of human excreta of the present invention and recycling processing method, described step 3) in, catalyst accounts for the 0.5-3.5% of stool quality.
Described catalyst is alkali metal salt.
A kind of decontamination of human excreta of the present invention and recycling processing method, described step 3) in, catalyst is KOH or/and Na2CO3。
Compared with prior art, decontamination of human excreta of the present invention and recycling processing method make the urine after fecaluria separation without pathogen, agricultural use after can collecting; Single closet liquefies, and heated material is few, and mode of heating is flexible, adds feces mobility, it is simple to the collection transport that excrement is dirty, thus realizing collection or the pipeline conveying of whole community feces.
Accompanying drawing explanation
Fig. 1: decontamination of human excreta of the present invention and recycling treatment flow chart.
Detailed description of the invention
Below in conjunction with specific embodiment, decontamination of human excreta of the present invention and recycling processing method are described further, but protection scope of the present invention is not limited to this.
Embodiment 1
Decontamination of human excreta and recycling processing method, concrete steps include: 1) by dung-urine separator, and by feces and urine separation, urine carries out after innoxious collection for agricultural use; 2) feces carries out post liquefaction by liquefying plant, is placed in storage barrel innoxious collection; 3) the liquid feces of collection is added catalyst in a kettle. to react, obtain bio-oil, after oil-water separation, by water emission treatment. Described step 1) and 2) in, innoxious collection is to be collected by pipeline. Described step 2) in, liquefaction process is heated with solar energy for thermal source, and temperature is 200 DEG C, and pressure is 4MPa, and heat time heating time is 10min. Pyroreaction still adopts electrical heating, and temperature is at 300 DEG C, and pressure is 15MPa, and heat time heating time is 30min. Catalyst is KOH; Catalyst accounts for the 1% of stool quality, and it is 66% that feces is converted into the conversion ratio of bio-oil.
Embodiment 2
Decontamination of human excreta and recycling processing method, concrete steps include: 1) by dung-urine separator, and by feces and urine separation, urine carries out after innoxious collection for agricultural use; 2) feces carries out post liquefaction by liquefying plant, is placed in storage barrel innoxious collection; 3) the liquid feces of collection is added catalyst in a kettle. to react, obtain bio-oil, after oil-water separation, by water emission treatment. Described step 1) and 2) in, innoxious collection is by taking out dung-cart collection. Liquefaction process is heated with solar energy for thermal source, and temperature is 250 DEG C, and pressure is 4MPa, and heat time heating time is 30min. Pyroreaction still adopts Electromagnetic Heating, and temperature is at 350 DEG C, and pressure is 15MPa, and heat time heating time is 60min.Catalyst is Na2CO3; Catalyst accounts for the 3% of stool quality, and it is 67% that feces is converted into the conversion ratio of bio-oil.
Embodiment 3
Decontamination of human excreta and recycling processing method, the concrete steps of described processing method include: 1) by dung-urine separator, and by feces and urine separation, urine carries out after innoxious collection for agricultural use; 2) feces carries out post liquefaction by liquefying plant, is placed in storage barrel innoxious collection; 3) the liquid feces of collection is added catalyst in a kettle. to react, obtain bio-oil, after oil-water separation, by water emission treatment. Described step 1) and 2) in, innoxious collection is to be collected by pipeline. Liquefaction process is heated with solar energy for thermal source, and temperature is 220 DEG C, and pressure is 4MPa, and heat time heating time is 15min. Pyroreaction still adopts electrical heating, and temperature is at 330 DEG C, and pressure is 15MPa, and heat time heating time is 45min. Catalyst is Na2CO3; Catalyst accounts for the 2% of stool quality; It is 69% that feces is converted into the conversion ratio of bio-oil.

Claims (7)

1. a decontamination of human excreta and recycling processing method, it is characterised in that the concrete steps of described processing method include: 1) by dung-urine separator, by feces and urine separation, urine carries out after innoxious collection can agricultural use; 2) feces carries out post liquefaction by liquefying plant, is placed in storage barrel innoxious collection; 3) the liquid feces of collection is added catalyst in a kettle. to react, obtain bio-oil, after oil-water separation, by water emission treatment.
2. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 1) and 2) in, innoxious collection is to be collected or take out dung-cart to collect by pipeline.
3. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 2) in, liquefaction process is heated with solar energy for thermal source, and temperature is 200-250 DEG C, and pressure is 3-6MPa, heat time heating time is 0-30min, it is preferable that 1-30min.
4. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 3) in, reactor adopts electrical heating or Electromagnetic Heating, and temperature is at 300-350 DEG C, and pressure is 10-20MPa, and heat time heating time is 30-60min.
5. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 3) in, catalyst accounts for the 0.5-3.5% of stool quality.
6. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 3) in, catalyst is alkali metal salt.
7. a kind of decontamination of human excreta according to claim 1 and recycling processing method, it is characterised in that described step 3) in, catalyst is KOH or/and Na2CO3。
CN201610236908.1A 2016-04-17 2016-04-17 A kind of decontamination of human excreta and recycling processing method Active CN105668968B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108218552A (en) * 2016-12-22 2018-06-29 北京天缘生物科技有限公司 One kind is suitable for fructovegetative plant nutrient agent of vegetable and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06126300A (en) * 1992-10-16 1994-05-10 Unitika Ltd Treatment of waste water sludge
CN101182422A (en) * 2007-11-26 2008-05-21 内蒙古金骄特种新材料有限公司 Hypoxic bio-oil and preparation method thereof
CN103418604A (en) * 2013-07-23 2013-12-04 石台县惠农养猪专业合作社 Method for comprehensive treatment and utilization of pig manure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06126300A (en) * 1992-10-16 1994-05-10 Unitika Ltd Treatment of waste water sludge
CN101182422A (en) * 2007-11-26 2008-05-21 内蒙古金骄特种新材料有限公司 Hypoxic bio-oil and preparation method thereof
CN103418604A (en) * 2013-07-23 2013-12-04 石台县惠农养猪专业合作社 Method for comprehensive treatment and utilization of pig manure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108218552A (en) * 2016-12-22 2018-06-29 北京天缘生物科技有限公司 One kind is suitable for fructovegetative plant nutrient agent of vegetable and preparation method thereof

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