CN101863689A - Method for comprehensively treating grating garbage and activated sludge in sewage plant - Google Patents
Method for comprehensively treating grating garbage and activated sludge in sewage plant Download PDFInfo
- Publication number
- CN101863689A CN101863689A CN200910049446A CN200910049446A CN101863689A CN 101863689 A CN101863689 A CN 101863689A CN 200910049446 A CN200910049446 A CN 200910049446A CN 200910049446 A CN200910049446 A CN 200910049446A CN 101863689 A CN101863689 A CN 101863689A
- Authority
- CN
- China
- Prior art keywords
- garbage
- active sludge
- grating
- grating garbage
- activated sludge
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for comprehensively treating grating garbage and activated sludge in a sewage plant. The pretreated grating garbage and concentrated activated sludge are mixed and the mixture and sorted organic domestic garbage are subjected to chemical catalytic hydrolysis and ammonia-fixing treatment to form an organic energy fertilizer by the prior art. The method has the advantages that: 1, the grating garbage does not need conveying outside through payment to be treated, so that the processing fee of the grating garbage is saved; 2, the activated sludge is treated by waste acid and subjected to gravity concentration, and two-step concentration (gravity settling and flocculation concentration by adding polyacrylamide) in the prior art is changed into one-step concentration, so that the equipment and material cost is saved, and the process is simple and quick and has significance for environmental protection by using the waste acid; and 3, the concentrated activated sludge and the pretreated grating garbage are directly mixed and subjected to chemical catalytic hydrolysis, so that the dehydration process is saved, the repeated process is avoided, the floor area is reduced and the equipment investment is saved.
Description
Technical field
The present invention relates to a kind of Sewage Plant grating garbage and active sludge integrated conduct method.
Background technology
The flow process of municipal sewage treatment is generally grid-settling pit-preliminary sedimentation tank-biological treatment process-second pond-sterilize-discharge or does tertiary treatment.In sewage treatment process, can produce solid-state, semi-solid state and liquid waste, be also referred to as mud, contain a large amount of organism, can do the fertile use of farming, but contain a large amount of bacteriums, virus and heavy metal etc. again, need do mud decrement, stable, harmless treatment.
Along with the popularizing of sewage treatment facility, the raising of processing rate and the in-depth of degree of treatment, the mud generation of Sewage Plant will have bigger growth, handle discharging arbitrarily as not adding, and can cause serious secondary pollution to environment.The secondary pollution problem that causes thus can not be ignored.Therefore total requirement is stabilization, innoxious and minimizing to sludge treatment.
In existing municipal sewage treatment process, ingress is provided with grid in sewage treatment facility, mainly is to adopt physical treatment process to hold back bigger floating matter or suspended substance, and the rubbish that the process grid is held back is generally paid to transport outward and carried out refuse treatment.And the processing of the active sludge that produces for sewage disposal, then be earlier through gravitational settling, adding polyacrylamide then flocculates concentrated, dewater with belt filter press or horizontal spiral centrifuge at last, obtain the sludge filter cake of water content 75%-80%, carry out then handling in the factory or paying to transport outward and carry out handling outside the factory.When the generation of grating garbage and mud many more, the floor space that the handling of grating garbage, sludge disposal need and need the various expenses of payment just to require many more.Therefore how reasonably processing, disposing sludge and grating garbage become the problem that municipal wastewater treatment plant and relevant departments must draw attention.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Sewage Plant grating garbage and active sludge integrated conduct method, handles existing many weak points respectively to solve existing Sewage Plant grating garbage and active sludge.
The technical problem that will solve required for the present invention can be achieved through the following technical solutions:
A kind of Sewage Plant grating garbage and active sludge integrated conduct method is characterized in that, may further comprise the steps:
(1) with pretreated grating garbage with adopt the spissated active sludge of single stage method mix material I;
(2) material I gets material II through the solid ammonia treatment of chemical catalysis hydrolysis together with the organic domestic waste of sorting;
(3) material II takes prior art for preparing organic energy fertilizer.
The pre-treatment step of described grating garbage comprises: the rubbish that with primary crusher large-sized refuse breaking is become small size 1-5mm earlier, small size rubbish is then delivered to rotary cutter formula fine crusher with worm conveyor, the following soup compound of one-tenth 1mm in small, broken bits, be delivered to the water impact sieve with slush pump then, screen out foreign material such as plastics, obtain the screen underflow of pulpous state.
The revolution of described rotary cutter formula fine crusher is 1000-4000 rev/min.
The revolution of described water impact sieve rotating screen is 20-200 rev/min.
The spissated active sludge of described employing single stage method is: adopt active sludge to add the spent acid adjust pH to 1-5, be delivered to gravity concentrating and precipitating groove by slush pump and carry out gravitational settling, sedimentation time is 1-6 hour resulting active sludge.
Owing to adopted technique scheme, the present invention has the following advantages: 1, the grating garbage that produces in the sewage treatment process does not need the paying outward transport to carry out refuse treatment, has saved the handling of grating garbage; 2, for active sludge, adopt spent acid processing carrying out again gravity to concentrate, replace polyacrylamide by spent acid, being concentrated (gravitational settling and add the polyacrylamide flocculation concentrate) two steps of prior art becomes a step and concentrates, saved cost of equipment, technology is simple, quick, has saved the flocculation agent expense, and adopting spent acid is the treatment of wastes with processes of wastes against one another, has environment protection significance; 3, adopt the active sludge after single stage method concentrates need not carry out processed, directly mix with pretreated grating garbage, carry out the chemical catalysis hydrolysis treatment, saved the processed technology of active sludge, avoid technologic repetition, save facility investment, reduce floor space, thereby saved running cost.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is a process flow diagram of the present invention.
Embodiment
In order to make technique means of the present invention, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the present invention below in conjunction with concrete diagram.
As shown in Figure 1, a kind of Sewage Plant grating garbage and active sludge integrated conduct method, mainly be with adopting the spissated active sludge of single stage method to mix with pretreated grating garbage, then with the organic domestic waste of sorting together after the solid ammonia treatment of chemical catalysis hydrolysis, adopt prior art for preparing organic energy fertilizer again.Grating garbage is after holding back through grid, carry out pre-treatment, earlier will be mixed with the rubbish that large-sized refuse breaking becomes small size 1-5mm with primary crusher, enter high speed rotary cutter formula fine crusher then further with the following soup compound of rubbish one-tenth in small, broken bits 1mm after just broken, deliver to the screening of water impact sieve with slush pump again, screen out foreign material such as plastics, the plastics class can be cleaned recovery, screen underflow is muddy, and the active sludge after delivering to the mixing machine preparation and concentrating mixes.Wherein rotary cutter formula fine crusher is by frequency converter timing, and revolution is 1000-4000 rev/min, and the water impact sieve also is by the variable-frequence governor speed governing, and revolution is 20-200 rev/min.
Active sludge adds spent acid control pH value earlier for 1-5 before entering slush pump, make active sludge destroy hydrogen bond under acidic conditions, loss of stability, deliver to gravity concentrating and precipitating groove by slush pump then, carry out gravity and concentrate, reduce sludge volume, the gravity concentration time is 1-6 hour.Supernatant liquor after concentrating returns the pump well or the equalizing tank of raw waste water pump house.Spissated active sludge is delivered to mixing machine and is mixed through pretreated grating garbage.Then through the solid ammonia treatment of chemical catalysis hydrolysis, chemical catalysis hydrolysis, solid ammonia react are to be 1 in jar inner control solid-to-liquid ratio: 2-10, and pH is controlled at 1-4, and temperature is controlled at 105 ℃-250 ℃, and pressure is 0.1Mpa-2.0Mpa, and the reaction times is 1 hour-10 hours.
When mixture carries out the solid ammonia treatment of chemical catalysis hydrolysis, dehydration simultaneously, deodorization, removing heavy-metal, thorough killing pathogenic bacteria, virus, roundworm egg etc., thoroughly decompose microbial toxin, concrete technology is to carry out solid-liquid separation with plate-and-frame filter press after the solid ammonia treatment of chemical catalysis hydrolysis, liquid portion is removed suspended substance through coarse filtration, carrying out ultra-filtration membrane then separates, see through the liquid removing heavy-metal, carrying out reverse osmosis membrane separation again concentrates, permeate water is recycled, concentrated solution is mixed together with the isolating concentrated solution of ultra-filtration membrane and carries out " triple effect " vacuum-evaporation and concentrate, after the solid part mixing with the drying dehydration, carry out the computer batching, granulation, organic energy fertilizer warehouse-in is made in dry cooling, metering packing.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. Sewage Plant grating garbage and active sludge integrated conduct method is characterized in that, may further comprise the steps:
(1) with pretreated grating garbage with adopt the spissated active sludge of single stage method mix material I;
(2) material I gets material II through the solid ammonia treatment of chemical catalysis hydrolysis together with the organic domestic waste of sorting;
(3) material II takes prior art for preparing organic energy fertilizer.
2. the method for claim 1, it is characterized in that, the pre-treatment step of described grating garbage comprises: the rubbish that with primary crusher large-sized refuse breaking is become small size 1-5mm earlier, small size rubbish is then delivered to rotary cutter formula fine crusher with worm conveyor, the following soup compound of one-tenth 1mm in small, broken bits, be delivered to the water impact sieve with slush pump then, screen out foreign material such as plastics, obtain the screen underflow of pulpous state.
3. method as claimed in claim 2 is characterized in that, the revolution of described rotary cutter formula fine crusher is 1000-4000 rev/min.
4. method as claimed in claim 2 is characterized in that, the revolution of described water impact sieve rotating screen is 20-200 rev/min.
5. the method for claim 1, it is characterized in that, the spissated active sludge of described employing single stage method is: adopt active sludge to add the spent acid adjust pH to 1-5, be delivered to gravity concentrating and precipitating groove by slush pump and carry out gravitational settling, sedimentation time is 1-6 hour resulting active sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100494462A CN101863689B (en) | 2009-04-16 | 2009-04-16 | Method for comprehensively treating grating garbage and activated sludge in sewage plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100494462A CN101863689B (en) | 2009-04-16 | 2009-04-16 | Method for comprehensively treating grating garbage and activated sludge in sewage plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101863689A true CN101863689A (en) | 2010-10-20 |
| CN101863689B CN101863689B (en) | 2013-09-25 |
Family
ID=42955658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100494462A Expired - Fee Related CN101863689B (en) | 2009-04-16 | 2009-04-16 | Method for comprehensively treating grating garbage and activated sludge in sewage plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101863689B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081758A (en) * | 2018-09-30 | 2018-12-25 | 上海集熠节能环保技术有限公司 | The production method and energy fertilizer finished product of kitchen garbage production small molecule organic energy fertilizer |
| PL423664A1 (en) * | 2017-11-30 | 2019-06-03 | Glowny Instytut Gornictwa | Organic-mineral fertilizer and method for producing it |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369331A (en) * | 2001-02-14 | 2002-09-18 | 堀秀隆 | Fermentation treatment process for organic wasted object and utilized article of said fermentation treatment object |
| CN1374154A (en) * | 2001-03-09 | 2002-10-16 | 刘相才 | Triphase solid-liquid-gas treatment method for city refuse resource |
| CN1669950A (en) * | 2004-03-16 | 2005-09-21 | 薛占何 | Integrated treatment process for urban sewage and domestic refuse |
| CN100486722C (en) * | 2006-06-15 | 2009-05-13 | 张相锋 | Technique of producing fertilizer, producing gas by digesting organic waste in semi-solid state in two phases |
| CN100532564C (en) * | 2006-06-19 | 2009-08-26 | 同济大学 | Combined hydrogen production method for combining mineralize refuse, swill waste and sludge |
| CN100551881C (en) * | 2007-03-05 | 2009-10-21 | 清华大学 | Utilize organic sludge to produce the method for liquid fertilizer |
| CN101333123B (en) * | 2007-10-12 | 2011-03-30 | 东莞市圣茵生物有机肥有限公司 | Process for reclaiming city domestic sludge |
-
2009
- 2009-04-16 CN CN2009100494462A patent/CN101863689B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL423664A1 (en) * | 2017-11-30 | 2019-06-03 | Glowny Instytut Gornictwa | Organic-mineral fertilizer and method for producing it |
| CN109081758A (en) * | 2018-09-30 | 2018-12-25 | 上海集熠节能环保技术有限公司 | The production method and energy fertilizer finished product of kitchen garbage production small molecule organic energy fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101863689B (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101234841B (en) | Sludge concentration dehydration method | |
| KR101304396B1 (en) | Waste activated sludge phosphorus and magnesium stripping process and struvite production system | |
| CN102531295B (en) | Method for jointly treating different garbage | |
| KR100978125B1 (en) | Wastewater treatment appliance capable of producing biogas and liquid fertilizer with high quality and improving water qulaity on discharging | |
| CN104803544A (en) | Treatment method of livestock waste water and device thereof | |
| CN203173939U (en) | Breeding wastewater treatment system | |
| CN103172244A (en) | Recycling treatment method of water-submerged manure in breeding industry | |
| CN104801528B (en) | Domestic waste organic treatment method | |
| CN111187708A (en) | Kitchen waste and sludge combined anaerobic fermentation biogas preparation comprehensive utilization system | |
| CN102351386B (en) | Potato type ethanol wastewater treatment method and system | |
| CN204454832U (en) | Cultivating wastewater purification reclaiming system | |
| CN113664023A (en) | System and process for purifying sewage by using kitchen waste hydrolysis as denitrification carbon source | |
| CN104118973A (en) | Technique for processing reverse osmosis concentrated water | |
| JP2016511693A (en) | Wastewater treatment process and system | |
| CN112808738A (en) | Method for preparing carbon source by utilizing kitchen waste | |
| CN106747706A (en) | A kind of biogas slurry film concentrating and separating prepares biogas slurry fertilizer cycle production process | |
| WO2011108474A1 (en) | Sludge treatment method, organic waste treatment method, and method of use for water treatment sludge carbide in liquid phase | |
| CN101863689B (en) | Method for comprehensively treating grating garbage and activated sludge in sewage plant | |
| JP3835927B2 (en) | Organic waste treatment methods | |
| CN107162352A (en) | Percolate MBR+NF concentration liquid membrane extractions contain UF in humic acid water-soluble fertilizer and pass through liquid processing method | |
| CN207713594U (en) | A kind of Industrial sewage treatment system | |
| US20220112109A1 (en) | Organic waste treatment process | |
| CN209759179U (en) | Biogas slurry advanced treatment system | |
| JPH11197639A (en) | Treatment of organic waste | |
| KR20150066055A (en) | System for Anaerobic Digestion of High Concentration Organic Wastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI MULIANG INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: SONG HUI Effective date: 20131128 Free format text: FORMER OWNER: WANG LIRONG LIU WENZHI LIU YONG Effective date: 20131128 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201620 SONGJIANG, SHANGHAI TO: 201501 JINSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131128 Address after: Jinshan District Fengjing town Shanghai city 201501 No. 1 Bridge northbound side of No. 2 hall No. 14 room 18 Patentee after: Shanghai Muliang Industrial Co., Ltd. Address before: 201620, room 200, No. 2218, Lane 402, new Songjiang Road, Shanghai, Songjiang District Patentee before: Song Hui Patentee before: Wang Lirong Patentee before: Liu Wenzhi Patentee before: Liu Yong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20210416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |