CN1040969A - City excrement mesophilic digestion, high-temperature processing technology - Google Patents
City excrement mesophilic digestion, high-temperature processing technology Download PDFInfo
- Publication number
- CN1040969A CN1040969A CN88106319A CN88106319A CN1040969A CN 1040969 A CN1040969 A CN 1040969A CN 88106319 A CN88106319 A CN 88106319A CN 88106319 A CN88106319 A CN 88106319A CN 1040969 A CN1040969 A CN 1040969A
- Authority
- CN
- China
- Prior art keywords
- city
- excrement
- normal temperature
- digester
- treatment process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- Y02W10/12—
Landscapes
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The present invention is city excrement treatment process, genus city environmental protection technical field.
City excrement treatment process big energy-consuming, investment at present greatly.This technology is that a large amount of supernatant liquors through one-level normal temperature Anaerobic Digestion, is killed pathogenic bacterium again with after the city excrement process one-level anaeration in normal temperature digestion process; The a spot of sediment in bottom carries out pyroprocessing again, continues to kill parasitic ovum and handles the evaluation of hygiene tentative standard to reach China's city excrement, and save the energy and reduce construction investment.
Description
A kind of technology that the present invention handles for the city excrement belongs to the city environmental protection technical field.
The city excrement is handled at present, in American-European countries, flows into sewage work by municipal sewage system and adopts the biological and chemical method to focus on.Japan adopts three grades of anaeration in normal temperature digestion process technologies.China adopts the thermophilic digestion treatment process more.Japan once proposed anaeration in normal temperature digestion and whole liquid manure pyroprocessing (more than 100 ℃) process combined.Above-mentioned several art breading is effective, but investment is big, big energy-consuming.
The object of the invention is intended the pyroprocessing of the anaeration in normal temperature digestion process of liquid manure and excrement slag is organically become one, reaches Pesticidal and sterilizing and cuts down the consumption of energy significantly again and make the construction investment reduction.
This technology is with in the charging pond 2, pump into first step digester 6 earlier through the city excrement that gives processing and carry out anaeration in normal temperature digestion process (32～35 ℃ of temperature, 15～18 days viscous flow phases) in first step digester, stop charging, stirring and precipitation after 8 hours, adopt the middle level charging, upper strata overflow or the laggard mode of the row of elder generation enter supernatant liquor the second stage digester 7 that does not have stirring.Utilize the supernatant liquor waste heat, in the digester of the second stage, proceed normal temperature Anaerobic Digestion (normal temperature, viscous flow phase: 8～10 days) and precipitation.The supernatant liquor of second stage digester enters anaerobism manure storage pond to be continued to handle, and kills the effect of pathogenic bacterium and waits for outward transport with raising; Its bottom sediment is discharged according to the order of sequence, and stack retting is made fertilizer and used.Excrement slag under the first step digester bottom settlings, according to the order of sequence, quantitatively entering the pyroprocessing jar makes pyroprocessing (day output is 1/5～1/8 of day charging total amount, temperature: 60～65 ℃, insulation: 0.5～1.0 hour), further kill not dead as yet parasitic ovum etc.Excrement slag after the pyroprocessing flows back to the charging pond again, and utilizes its waste heat to improve the temperature of fresh city excrement.
Through mesophilic digestion, the ight soil of pyroprocessing can reach China's city excrement and handle the evaluation of hygiene tentative standard.Because but the processing respectively of liquid, slag is than thermophilic digestion treatment process energy efficient 35%, construction investment reduces.
Accompanying drawing: mesophilic digestion, high-temperature processing technology schema,
The basic procedure of this technology is after the city excrement that passing machine 1 is removed various solid sundries is gone into charging pond 2, stirred, feed liquid (phegma) in the first step digester 6 that pump 3 extracts also and pump 4 extracts pumps into first step digester 6 middle and upper parts through mixing tank 5 simultaneously.The supernatant liquor that is overflowed by first step digester 6 tops flows into digester 7 middle parts, the second stage, and relies on the waste heat of supernatant liquor to make normal temperature Anaerobic Digestion and precipitation.Digester 7 top spillages in the second stage flow into anaerobism manure storage pond 8, wait for outward transport; This bottom, pond sediment is discharged in regular turn, and stack retting is made fertilizer and used.The excrement slag of first step digester 6 bottom settlingss enters pyroprocessing jar 10 by charging every day number of times, and directly sprays into the steam of boiler 9 and to carry out pyroprocessing; After entering charging pond 2 and fresh city excrement mixes, excrement slag after the pyroprocessing enters first step digester 6 again.Boiler 9 is used for heating of first step digester 6 and pyroprocessing jar 10.Biogas boiler of feeding that generates or generating set use.
Claims (4)
1, the treatment process of a kind of city excrement.It is characterized in that the big city excrement of water content after the imitative capitate digester 6 anaeration in normal temperature digestion process of the first step, liquid, slag are handled respectively again: supernatant liquor continues to handle through the normal temperature anaerobic digestion, kills pathogenic bacterium; Sediment is killed parasitic ovum etc. again through pyroprocessing.
2, city according to claim 1 excrement treatment process, the temperature that it is characterized in that anaeration in normal temperature digestion process technology is 32～35 ℃, the viscous flow phase (HRT) is 15-18 days, liquid manure adopts middle level charging, upper strata overflow or elder generation's laggard mode of row to discharge supernatant liquor to second stage digester 7(band gas holder formula digester after stopping the charging stirring and precipitating 8 hours in the pond).
3, city according to claim 1 excrement treatment process, the temperature that it is characterized in that high-temperature processing technology are 60～65 ℃ and are incubated 0.5～1.0 hour that day output is 1/5～1/8 of a day charging total amount.Sediment after the processing flows back to charging pond 2, and utilizes its waste heat to improve the temperature of fresh city excrement.
4, city according to claim 1 excrement treatment process, it is characterized in that normal temperature Anaerobic Digestion technology is that the waste heat that utilizes first step digester 6 to discharge supernatant liquor carries out, the viscous flow phase (HRT) is 8～10 days, and adopts middle level charging, upper strata overflow, bottom regular cinder-discharge and do not have the coprecipitation mode of stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88106319A CN1018630B (en) | 1988-09-05 | 1988-09-05 | Technology for mesophilic digestion and high-temp. process of city excrement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88106319A CN1018630B (en) | 1988-09-05 | 1988-09-05 | Technology for mesophilic digestion and high-temp. process of city excrement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1040969A true CN1040969A (en) | 1990-04-04 |
| CN1018630B CN1018630B (en) | 1992-10-14 |
Family
ID=4834199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88106319A Expired CN1018630B (en) | 1988-09-05 | 1988-09-05 | Technology for mesophilic digestion and high-temp. process of city excrement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018630B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311725A (en) * | 2017-07-25 | 2017-11-03 | 安徽海东环保科技有限公司 | A kind of pig manure method applied to by septic tank |
| CN107324890A (en) * | 2017-07-25 | 2017-11-07 | 安徽海东环保科技有限公司 | A kind of Chicken Manure Compost method applied to by septic tank |
| CN107353062A (en) * | 2017-07-28 | 2017-11-17 | 安徽新创智能科技有限公司 | A kind of pig manure and straw hybrid composting method |
| CN107500850A (en) * | 2017-07-28 | 2017-12-22 | 安徽新创智能科技有限公司 | A kind of Kkitchen food waste and straw hybrid composting method |
| CN108889767A (en) * | 2018-07-06 | 2018-11-27 | 浙江百思达科技有限公司 | Novel kitchen refuse disposal system and utilize method |
-
1988
- 1988-09-05 CN CN88106319A patent/CN1018630B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311725A (en) * | 2017-07-25 | 2017-11-03 | 安徽海东环保科技有限公司 | A kind of pig manure method applied to by septic tank |
| CN107324890A (en) * | 2017-07-25 | 2017-11-07 | 安徽海东环保科技有限公司 | A kind of Chicken Manure Compost method applied to by septic tank |
| CN107353062A (en) * | 2017-07-28 | 2017-11-17 | 安徽新创智能科技有限公司 | A kind of pig manure and straw hybrid composting method |
| CN107500850A (en) * | 2017-07-28 | 2017-12-22 | 安徽新创智能科技有限公司 | A kind of Kkitchen food waste and straw hybrid composting method |
| CN108889767A (en) * | 2018-07-06 | 2018-11-27 | 浙江百思达科技有限公司 | Novel kitchen refuse disposal system and utilize method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1018630B (en) | 1992-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020100061A4 (en) | Harmless Treatment System and Method for Livestock and Poultry Breeding Wastewater | |
| CN101302071B (en) | Method for processing palm oil waste water and use thereof | |
| CN102174586B (en) | Method and device for recycling edible mushroom residues | |
| CN106430562B (en) | A kind of processing method of poultry discharged wastewater met the national standard | |
| CN100376335C (en) | Marsh gas production technology using kitchen residue, straw, stock and fowl dejecta and active mud as material | |
| CN106242162A (en) | The dirt of livestock and poultry farms in scale excrement and the recycling treatment process of waste water | |
| CN101429480A (en) | Method and apparatus for fermentation production of sludge gas with mixed stalk raw material | |
| CN201372280Y (en) | Device for producing marsh gas by fermenting straw mixed raw material | |
| CN105969809B (en) | A method of biogas is prepared using stalk joint excess sludge | |
| CN102101750B (en) | Solar energy medium-temperature high-efficiency heat and power generation process and cogeneration device for biogas from animal feces | |
| JP2003306686A (en) | Method and apparatus for conversion of biodegradable organic material into product gas | |
| CN102133575A (en) | Combined anaerobic pretreatment method for village-in-lake domestic sewage and organic waste | |
| CN201686596U (en) | Large and medium-sized biogas-making system device | |
| CN216005689U (en) | High-value grading utilization system for livestock excrement | |
| CN1040969A (en) | City excrement mesophilic digestion, high-temperature processing technology | |
| CN205347142U (en) | Aquaculture wastewater treatment system | |
| CN202017008U (en) | Edible fungus dreg recycling treatment device | |
| CN100596303C (en) | Solar biomimetric methane reactor | |
| CN103320272A (en) | Culture method of pit mud curing liquid | |
| Song et al. | Effect of human excreta mixture on biogas production | |
| CN102583902B (en) | Treatment system for comprehensive utilization of rural sewage | |
| CN112845531B (en) | Anaerobic digestion treatment method for kitchen waste | |
| CN207581801U (en) | A kind of mixed material fermentation and biogas production device with low temperature sterilization | |
| CN204644363U (en) | A kind of integrated form biomass waste associating two-phase dry-type anaerobic fermentation device | |
| Rabiu et al. | Enhancing biogas production rate of cattle manure using rumen fluid of ruminants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |