CN1824615A - Treatment method of high concentration swill - Google Patents
Treatment method of high concentration swill Download PDFInfo
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- CN1824615A CN1824615A CNA2005101120853A CN200510112085A CN1824615A CN 1824615 A CN1824615 A CN 1824615A CN A2005101120853 A CNA2005101120853 A CN A2005101120853A CN 200510112085 A CN200510112085 A CN 200510112085A CN 1824615 A CN1824615 A CN 1824615A
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- Prior art keywords
- aeration
- swill
- active sludge
- herba eichhorniae
- water
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- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- 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
Abstract
The present invention relates to a method for treating high-concentration swill, in the concrete, it is a method capable of utilizing action of microbe and functional action of water plant to make lots of organic substances in swill be degraded and consumed so as to obtain pure water, belonging to the field of microbial water purification treatment technology. Said treatment method includes the following processes: (1), preparing active sludge; (2), using NaOH or CaCO2 to regulate pH value of treating liquor to 7.0-7.2, and using active sludge to make aeration treatment; and (3), using water plant water hyacinth to make further aeration treatment. Said invention also provides the concrete steps and requirements of every process.
Description
Technical field
The present invention relates to a kind of treatment process of high concentration swill, utilize the function of action of microorganisms and waterplant to make in the swill degraded of large amount of organic matter more precisely and consume and obtain water purifying method, microorganism belonging to genus water purification treatment technology field.
Background technology
Swill can claim swill, be meant people in the restaurant, dining room, school, unit dining room etc. locate the percolate or the diluent of the surplus soup of depleted leftovers.The complicated component of swill mainly contains starch, animals and plants oils, protein and salinity, contains small amount of N, P, Ca, Mg, Fe etc. simultaneously and urges secondary element.In general, albumen in the swill in restaurant, restaurant, fat content are higher; School lunch service then starch content is higher relatively.Swill very easily rots, and contaminate environment spreads disease, if can not effectively be handled, brings a series of negative impact will for people's production and life.
Contain a large amount of bacteriums and germ in the swill, not only can make domestic animal infect disease, and can be detrimental to health by food chain.At present, environmental sanitation department has begun restriction and directly swill has been fed pigs as feed.Because contain a large amount of vegetable and animals oils in the swill, some illegal retailer collects this layer grease, refine through simple processing, " sewer oil " made " edible oil ", sell on market with cheap price.These " sewer oils " can bring out the generation of human body cell pathology, cause the generation of various diseases.Contain a large amount of organic substances in the swill, and very easily smelly rotten, if directly enter municipal sewage pipe network, will cause concentration of wastewater increase in the urban pipe network, water body is smelly.When a large amount of swills enters river and lake, will cause the water body muddiness in river and lake; What is more, make water body blackening, the fouling of rivers and lakes, the ecotope of severe contamination locality and people's is healthy.
Because the CODcr of hogwash liquid is up to 45000mg/L, general microorganism can not tolerate so high CODcr, therefore high density hogwash liquid is directly handled to have sizable difficulty.At present, the relevant report of also hogwash liquid directly not being handled mainly is hogwash liquid to be diluted to handle or swill is entered sewage network mix with sanitary sewage both at home and abroad, enters sewage work again and handles.These two kinds of methods that swill is handled all need swill is diluted, and are that the multiple of dilution has even will be up to more than 100 times, so just increased equipment, the place of the treatment capacity of sewage work and treatment plant, the investment of manpower greatly.Because of catering trade distributes extensively, very strong region is arranged again, quantity is big, and water quality and quantity changes greatly, and very strong timeliness and seasonality are arranged, and its waste water inconvenience focuses on, and sets up a large-scale sewage work and focus on then unlikely near the locality.A kind of very strong specific aim can be arranged, the method for fine treatment effect is arranged be very eager and important because of finding.
Summary of the invention
The object of the present invention is to provide the treatment process of a kind of economy, quick, simple, safe high concentration swill.
The treatment process of a kind of high concentration swill of this hair is characterized in that having following treating processes and step:
A. the preparation of active sludge: get a certain amount of swill of crossing through sterilising treatment and place reactor, insert then through preliminary experiment and screen and known microorganisms bacterial classification that get, public Ke De, this microbial strains has 6 kinds, six strain bacterial strains are: 2 kinds of Bacillus licheniformis (B.licheniformis), 3 kinds of bacillus cereuses (B.cereus), a kind of subtilis; Inoculum size is 5～10%; Carry out aeration subsequently,, stop the 2～5h that exposes to the sun every 12～24h, 2～3 times repeatedly, from reactor, emit supernatant liquor, mend part hogwash liquid again, carry out aeration again, operated for 2～3 weeks in this way after, discharge clear water, stay settled active sludge;
B. under 36～38 ℃ of temperature condition, with NaOH or CaCO
3Regulate pH value to 7.0～7.2 of pending liquid; Swill is carried out aeration by homemade active sludge handle, the aeration temperature is 30～37 ℃, and aeration time is 48～60 hours;
C. the Herba Eichhorniae deep aeration is handled: select whole plant of Herba Eichhorniae or Herba Eichhorniae part root system, swill after above-mentioned processing active sludge aeration handled is equipped with by the shop and carries out deep aeration in the container of whole plant of Herba Eichhorniae or Herba Eichhorniae part root system and handle, the aeration temperature is 30～37 ℃, and aeration time is 6～8 days; Through the swill that active sludge and Herba Eichhorniae combination aeration is handled finally can become have in the auxiliary water of water water quality standard.
The inventive method mainly is to utilize self growth and breeding of microorganism, the material that can produce CODcr in the swill is reduced and consumes, thereby reach the purpose of handling swill.
After swill was handled through homemade active sludge aeration, the organic substance that produces CODcr in the treatment solution was removed in a large number, and clearance can reach 93.3%.Utilize the further advanced treatment of Herba Eichhorniae at next step, can reach effect preferably.
Waterplant is having under the situation of sunlight, can discharge certain oxygen from root, and can produce a large amount of aerobic zones, facultative aerobic zone and anaerobic zone around the Herba Eichhorniae root system, has formed multifarious microbial ecosystem.And the Herba Eichhorniae plant can produce materials such as some organic acids, and these materials can help microbial growth; It also can absorb the organic substance of some water moleculess in addition, also can play certain booster action in sewage disposal.
Utilize self-control active sludge and Herba Eichhorniae combination aeration treatment process, the sewage disposal time is shortened greatly, and effluent quality is improved, water water quality standard in reaching, can be used for carwash, water flowers, purposes such as irrigation, certain booster action is played in this utilization to China's water resources.
Embodiment
Now embodiments of the invention are described in further detail in after.
Embodiment 1
Its step of the treatment process of present embodiment high concentration swill is as described below:
(1) preparation of active sludge: get the swill that 3 liters cross through sterilising treatment and place reactor, insert then through preliminary experiment screening and, the available known microorganisms bacterial classification of the public, this microbial strains has 6 kinds, six strain bacterial strains are: 2 kinds of Bacillus licheniformis (B.licheniformis), 3 kinds of bacillus cereuses (B.cereus), a kind of subtilis; Inoculum size is 8%; Promptly insert 0.24 liter of nutrient solution containing this six strains bacterium pearl, carry out aeration subsequently,, stop the 3h that exposes to the sun every 20h, 3 times repeatedly, from reactor, emit supernatant liquor 1 liter, mend 1 liter of hogwash liquid again, carry out aeration again, after operating for 3 weeks in this way, discharge clear water, stay settled active sludge;
(2) under 37 ℃ of temperature condition, regulate the pH value to 7.1 of pending liquid with CaCO3; Swill is carried out aeration by homemade active sludge handle, the aeration temperature is 36 ℃, and aeration time is 48 hours;
(3) the Herba Eichhorniae deep aeration is handled: select the whole plant of Herba Eichhorniae, above-mentioned swill after the active sludge aeration is handled is equipped with by the shop carries out deep aeration in the container of the whole plant of Herba Eichhorniae and handle, the aeration temperature is 37 ℃, and aeration time is 7 days; Through the swill that active sludge and Herba Eichhorniae combination aeration is handled finally can become have in the auxiliary water of water water quality standard.
Swill water-quality constituents and feature before and after 48 hours active sludge aerations are handled is as shown in table 1 below.
Table 1 swill is water-quality constituents and feature before and after sludge aeration is handled
| CODcr (mg/L) | Starch (g/L) | Originality sugar (%) | Protein (%) | Fat (g/L) | PH | |
| Before the processing | 45000 | 29.9 | 0.255 | 0.401 | 3.0 | 7.0 |
| After the processing | 3024 | ≈0 | 0.032 | ≈0 | ≈0 | 7.1 |
Through last table as seen, the swill after the processing, the clearance of its CODcr can reach 93.3%.
CODcr in the last table represents: with the oxygen amount of potassium bichromate as carbohydrate or the required consumption of carbonaceous material in the oxygenant oxidation water.
The clearance of CODcr is defined as: the amount (mg/L) that contains CODcr before CODcr (%)=[amount (the mg/L)-aeration that contains CODcr before the aeration in the water is handled the amount (mg/L) of rest COD cr in the water of back]/aeration in the water.
Herba Eichhorniae deep aeration Processing Test has wherein added and has done correlated blank test, and its test-results is as shown in table 2 below.
The test-results of table 2 under the Herba Eichhorniae aeration condition
The CODcr removal effect of last table explanation Herba Eichhorniae plant is better, and the thalline number obviously increases.
With active sludge and Herba Eichhorniae combination process treatment solution is carried out deep aeration and handle, it is as shown in table 3 below to handle the effluent quality parameter of rolling at last.
The effluent quality parameter of the last treatment solution of table 3
| CODcr (mg/L) | Starch (g/L) | Originality sugar (%) | Protein (%) | Fat (g/L) | PH | |
| Before the processing | 45000 | 29.9 | 0.255 | 0.401 | 3.0 | 7.0 |
| After the processing | 85 | ≈0 | ≈0 | ≈0 | ≈0 | 7.1 |
Active sludge and Herba Eichhorniae combined treatment process are adopted in last table explanation, finally can obtain swill treatment effect preferably.
Claims (1)
1. the treatment process of a high concentration swill is characterized in that having following treating processes and step:
A. the preparation of active sludge: get a certain amount of swill of crossing through sterilising treatment and place reactor, insert then through preliminary experiment and screen and known microorganisms bacterial classification that get, public Ke De, this microbial strains has 6 kinds, six strain bacterial strains are: 2 kinds of Bacillus licheniformis (B.licheniformis), 3 kinds of bacillus cereuses (B.cereus), a kind of subtilis; Inoculum size is 5～10%; Carry out aeration subsequently,, stop the 2～5h that exposes to the sun every 12～24h, 2～3 times repeatedly, from reactor, emit supernatant liquor, mend part hogwash liquid again, carry out aeration again, operated for 2～3 weeks in this way after, discharge clear water, stay settled active sludge;
B. under 36～38 ℃ of temperature condition, with NaOH or CaCO
3Regulate pH value to 7.0～7.2 of pending liquid; Swill is carried out aeration by homemade active sludge handle, the aeration temperature is 30～37 ℃, and aeration time is 48～60 hours;
C. the Herba Eichhorniae deep aeration is handled: select whole plant of Herba Eichhorniae or Herba Eichhorniae part root system, swill after above-mentioned processing active sludge aeration handled is equipped with by the shop and carries out deep aeration in the container of whole plant of Herba Eichhorniae or Herba Eichhorniae part root system and handle, the aeration temperature is 30～37 ℃, and aeration time is 6～8 days; Through the swill that active sludge and Herba Eichhorniae combination aeration is handled finally can become have in the auxiliary water of water water quality standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101120853A CN100375723C (en) | 2005-12-27 | 2005-12-27 | Treatment method of high concentration swill |
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| CNB2005101120853A CN100375723C (en) | 2005-12-27 | 2005-12-27 | Treatment method of high concentration swill |
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| CN1824615A true CN1824615A (en) | 2006-08-30 |
| CN100375723C CN100375723C (en) | 2008-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864362A (en) * | 2010-05-19 | 2010-10-20 | 南京加德绿色能源研发有限公司 | Compound microbial bacterial preparation and application thereof |
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| ZA957644B (en) * | 1994-09-13 | 1996-05-14 | Innoval Management Ltd | Method for cleaning contaminated water |
| CN1159658C (en) * | 1998-12-24 | 2004-07-28 | 倚天资讯股份有限公司 | Method for updating software via wireless transmission |
| JP2001162297A (en) * | 1999-12-09 | 2001-06-19 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for treating organic waste water |
| CN1440940A (en) * | 2002-02-26 | 2003-09-10 | 上海复旦水务工程技术有限公司 | Combined sewage purifying treatment method |
| JP2005305285A (en) * | 2004-04-21 | 2005-11-04 | Toray Ind Inc | Activated sludge treatment method, activated sludge treatment apparatus and waste water treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864362A (en) * | 2010-05-19 | 2010-10-20 | 南京加德绿色能源研发有限公司 | Compound microbial bacterial preparation and application thereof |
| CN101864362B (en) * | 2010-05-19 | 2012-05-09 | 江苏加德绿色能源有限公司 | Compound microbial bacterial preparation and application thereof |
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| CN100375723C (en) | 2008-03-19 |
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Granted publication date: 20080319 Termination date: 20101227 |