CN102718465A - Resource treatment method for sludge and household refuse - Google Patents
Resource treatment method for sludge and household refuse Download PDFInfo
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- CN102718465A CN102718465A CN2012101671894A CN201210167189A CN102718465A CN 102718465 A CN102718465 A CN 102718465A CN 2012101671894 A CN2012101671894 A CN 2012101671894A CN 201210167189 A CN201210167189 A CN 201210167189A CN 102718465 A CN102718465 A CN 102718465A
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- domestic refuse
- recycling processing
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention discloses a resource treatment method for preparing sintered bricks by taking sludge and household refuse as raw materials. The method comprises the following steps of: (1) feeding sludge in a sewage treatment plant into a fermentation bin for fermentation, and fermenting in a main anaerobic mode; (2) sorting construction wastes from the household refuse, crushing the construction wastes, mixing the construction waste granules, the sludge treated in the step (1) and shale according to a weight ratio of 60:10:30, ageing the materials in a material plant, feeding the aged materials into a feeder for stirring, and rolling, cutting and roasting to manufacture the finished bricks. The sludge in a sewage plant and municipal solid waste are subjected to resource treatment, and the sludge and household refuse are changed into valuable things and can be recycled.
Description
Technical field
The invention belongs to the treatment process technical field of solid waste, relate to the treatment process of a kind of mud and domestic refuse, being specifically related to mud and domestic refuse is the recycling processing method of feedstock production vitrified brick.
Background technology
Reform and open up to the outside world over more than 20 year; China's economy gets into the quick rise period, and along with the people's material and cultural life level constantly improves, city size and quantity sharply expand; Thereby the generation that causes China's municipal wastes is the trend that increases year by year; And annual speed with 8%～10% increases, but the rubbish processing to be harmless rate of China does not reach 2% as yet, has 2/3 city to be absorbed in the encirclement of rubbish approximately; The urban refuse pollution problem becomes increasingly conspicuous, and its management and control have become one of outstanding problem of field of environment protection.Therefore, municipal wastes presses for the processing of innoxious, minimizing, resource utilization.
In recent years, along with expanding economy and growth in the living standard, not only refuse production changes, and also great changes will take place for the composition of rubbish, changes like the formation of family's fuel to have caused that inorganic ashes ratio greatly reduces in the rubbish; Frozen product, prefabricated finished product and work in-process food and clean vegetables listing, the food waste product obviously reduces; The reform of packing technique and material, reclaimable waste ratios such as paper, plastics, glass increase greatly; The variation of consumption idea impels the waste and old household industry consumer's goods in rubbish, to increase considerably; Infrastructure construction high speed development, town building rubbish 10% are increased considerably more than 40% by what accounted for municipal wastes originally till now.With abroad compare; The municipal wastes of China has self characteristics, because China's separate waste collection popularity rate is lower, municipal wastes all is to mix crude waste mostly; The municipal wastes organic content of next China is several times of developed country, and water cut is higher.
At present, the rubbish of middle samll cities and towns is many to be handled with land-fill method, and few part is directly abandoned stacking, and near the mosquito of every place where the garage is piled up in summer, fly multiply, and foul smell causes very big pollution for the environment of periphery wantonly.And percolate polluted underground water matter directly influences peripheral resident's living safety.Treatment of urban garbage and resource technology mainly are technological methods such as sanitary landfill, compost, burning and Harmless and Comprehensive Disposal.The sanitary landfill of rubbish is handled has advantages such as easy and simple to handle, that investment is less, expense is low, instant effect, treatment capacity are big.See have 70% rubbish to obtain processing approximately from processing mode.But what really obtain harmless treatment only accounts for 13%, and simultaneously land-fill method exists and permanently take a large amount of soils, produces biogas and to problems such as topsoil are serious.If or else note geologic condition, also can cause the secondary pollution of soil underground water and surrounding environment.In addition, the investment of the processing mode of burning electricity generation is huge, and a day processing 1000T rubbish construction investment needs about 500,000,000 yuan, and burns carcinogenic substances such as being prone to produce Dioxins.The moisture height of domestic refuse, the combustion-supporting mass energy that need to consume of rubbish, the surface sees it is the incineration firing utilization, and actual is that a large amount of combustion-supporting energy are idle and fire, and cost of electricity-generating is high.
Summary of the invention
In view of the deficiency of prior art, the object of the present invention is to provide the treatment process of a kind of mud and domestic refuse, providing a kind of especially is the recycling processing method of feedstock production vitrified brick with mud and domestic refuse.
The objective of the invention is to realize like this:
The recycling processing method of a kind of mud and domestic refuse comprises the steps:
(1) mud pre-treatment: sludge of sewage treatment plants is sent into the fermentation cabin fermentation, is main the fermentation with the anaerobism, kills various bacteriophagees and deodorizing, the organic substance in the degraded mud;
(2) preparation of vitrified brick: separating domestic garbage is gone out building waste; Pulverize; Mud after then building waste particle, step (1) being handled and shale mix the ageing of laggard pan feeding factory by the weight ratio of 60:10:30; The material that ageing is good is sent into feeding machine and is stirred, and rolls, slitting, roasting, thereby processes finished bricks.
The recycling processing method of said mud and domestic refuse; Wherein the described anaerobically fermenting time of step (1) is 5-10 days, and to keep fermented feed liquid pH value be 6.8～7.5, and temperature is 8～65 ℃; C/N ratio is 20～30:1 in the fermented feed liquid, and the carbon N/P ratio is 10:4:0.8.
The recycling processing method of said mud and domestic refuse, wherein keeping the temperature of fermented feed liquid during anaerobically fermenting is 53～55 ℃.
The recycling processing method of said mud and domestic refuse, wherein the fermented feed liquid concentration of step (1) is 5%-10%.
The recycling processing method of said mud and domestic refuse, wherein the equipment of the described separating domestic garbage operation employing of step (2) is the centrifugal high effective sorter.
The recycling processing method of said mud and domestic refuse; Wherein the used equipment of baking bricks of step (2) preparation vitrified brick is high-temperature electric resistance furnace; Sintering temperature is 1000～1100 ℃; Mould firmly with vacuum and to extrude the brick machine raw material is pushed, extrude electric current at 180～200A, extrusion pressure is 0.8～1.0Mpa.
Compared with prior art, the mud that the present invention relates to and the recycling processing method of domestic refuse have following advantage and obvious improvement:
(1) realizes that mud and domestic refuse turn waste into wealth recycle.The present invention is with the building waste that sorts out in the domestic refuse, the mud that Sewage Plant is seen off; Mix according to certain weight ratio with shale; Carry out comprehensive deep processing then and prepared vitrified brick; Thereby reach mud and domestic waste recycling treatment, rubbish is eliminated basically reached the energy regeneration purpose Sewage Plant.
(2) the vitrified brick quality of preparation is good.Be in particular in: moulding adobe smooth surface, end face, bar face irregularity degree be less than 2mm, four jiaos of full no residual traces; Finished bricks ultimate compression strength>=the 10MPa that fires, the level≤600kg/m of density system
3, hole ratio>=30%, water-intake rate≤16%, weathering resistance performance≤0.74.
Description of drawings
Fig. 1 is a process route chart of the present invention.
Embodiment
Below through the embodiment form foregoing of the present invention is remake further detailed description; But should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology that realizes based on foregoing of the present invention all belong to scope of the present invention.
Embodiment 1
1, mud pre-treatment.Sludge of sewage treatment plants is got into fermentation cabin elder generation anaerobism, is main the fermentation with the anaerobism, can accelerate to kill various bacterium viruses and deodorizing, the organic substance in the degraded mud.The anaerobically fermenting time was 1 week, and to keep fermented feed liquid pH value be 6.8～7.5, and temperature is 53～55 ℃, and C/N ratio is 25:1 in the fermented feed liquid, and the carbon N/P ratio is 10:4:0.8.Fermented feed liquid concentration is different with season, requires summer concentration about 6%, and be about 8% winter.
2, garbage sorting.Utilization centrifugal high effective sorter carries out the mechanize letter sorting, and rubbish is divided into organic and plastic waste, iron and steel scrap, building waste three major types, is convenient to the deep processing processing.Isolated building waste is ground into particle.
3, the preparation of vitrified brick: the mud after building waste particle, the pre-treatment and shale particle are mixed the ageing of laggard pan feeding factory by the weight ratio of 60:10:30; The mass transport that ageing is good is gone into feeding machine and is stirred; Roll, slitting, roasting, thereby process finished bricks.The brickmaking technology idiographic flow is following:
(1) shale, construction waste, → (2) Feeder → (3)? A crushing → (4) two smash → (5) Filter → (6) → proportionally adding sludge (6) pairs shaft mixer → (7) aging Library → (8) Multi-bucket conveyor → (9) rolling → (10) box-type feeder → (11) mixing, squeezing machine → (12) two-stage vacuum extruder → (13) cutting machine → (14) billet machine → (15) artificial code blank → (16) car ferry → (17) pushing machine → (18) Drying tunnel kiln → (19) car ferry → (20 ) Item car machine → (21) tunnel kiln firing → (22) tractor → (23) finished unloading the kiln → (24) kiln car transport line.
Through the moulding adobe smooth surface of above-mentioned prepared, end face, bar face irregularity degree be less than 2mm, four jiaos of full no residual traces; Finished bricks ultimate compression strength>=the 10MPa that fires, the level≤600kg/m of density system
3, hole ratio>=30%, water-intake rate≤16%, weathering resistance performance≤0.74.
Claims (6)
1. the recycling processing method of mud and domestic refuse is characterized in that comprising the steps:
(1) mud pre-treatment: sludge of sewage treatment plants is sent into the fermentation cabin fermentation, is main the fermentation with the anaerobism, kills various bacteriophagees and deodorizing, the organic substance in the degraded mud;
(2) preparation of vitrified brick: separating domestic garbage is gone out building waste; Pulverize; Mud after then building waste particle, step (1) being handled and shale mix the ageing of laggard pan feeding factory by the weight ratio of 60:10:30; The material that ageing is good is sent into feeding machine and is stirred, and rolls, slitting, roasting, thereby processes finished bricks.
2. according to the recycling processing method of said mud of claim 1 and domestic refuse; It is characterized in that: the described anaerobically fermenting time of step (1) is 5-10 days; And keeping fermented feed liquid pH value is 6.8～7.5; Temperature is 8～65 ℃, and C/N ratio is 20～30:1 in the fermented feed liquid, and the carbon N/P ratio is 10:4:0.8.
3. according to the recycling processing method of said mud of claim 2 and domestic refuse, it is characterized in that: keeping the temperature of fermented feed liquid during anaerobically fermenting is 53～55 ℃.
4. according to the recycling processing method of each said mud of claim 1～3 and domestic refuse, it is characterized in that: the fermented feed liquid concentration of step (1) is 5%-10%.
5. according to the recycling processing method of said mud of claim 1 and domestic refuse, it is characterized in that: the equipment that the described separating domestic garbage operation of step (2) adopts is the centrifugal high effective sorter.
6. according to the recycling processing method of said mud of claim 1 and domestic refuse; It is characterized in that: the used equipment of baking bricks of step (2) preparation vitrified brick is high-temperature electric resistance furnace; Sintering temperature is 1000～1100 ℃; Mould firmly with vacuum and to extrude the brick machine raw material is pushed, extrude electric current at 180～200A, extrusion pressure is 0.8～1.0Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101671894A CN102718465A (en) | 2012-05-28 | 2012-05-28 | Resource treatment method for sludge and household refuse |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101671894A CN102718465A (en) | 2012-05-28 | 2012-05-28 | Resource treatment method for sludge and household refuse |
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| CN102718465A true CN102718465A (en) | 2012-10-10 |
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| CN2012101671894A Pending CN102718465A (en) | 2012-05-28 | 2012-05-28 | Resource treatment method for sludge and household refuse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613403A (en) * | 2013-12-06 | 2014-03-05 | 杭州金享佳环保科技有限公司 | Process for making bricks by sludge |
| CN104843962A (en) * | 2015-05-18 | 2015-08-19 | 东江环保股份有限公司 | Method for preparing marsh gas and producing sintered bricks by using municipal sludge |
| CN110637698A (en) * | 2019-08-29 | 2020-01-03 | 广东清大同科环保技术有限公司 | Organic garden soil prepared from construction waste and municipal sludge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227207A (en) * | 1999-01-22 | 1999-09-01 | 昆明理工大学 | Technical process for producing light haydite |
| CN101234886A (en) * | 2008-03-06 | 2008-08-06 | 刘远蓉 | Method for sintering microporous ecological brick by one-step method and comprehensive utilization of garbage |
| CN101570429A (en) * | 2008-04-30 | 2009-11-04 | 王明根 | Processing method for making bricks by using municipal domestic sludge |
| CN101973683A (en) * | 2010-10-29 | 2011-02-16 | 同济大学 | Method for recycling sludge |
-
2012
- 2012-05-28 CN CN2012101671894A patent/CN102718465A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227207A (en) * | 1999-01-22 | 1999-09-01 | 昆明理工大学 | Technical process for producing light haydite |
| CN101234886A (en) * | 2008-03-06 | 2008-08-06 | 刘远蓉 | Method for sintering microporous ecological brick by one-step method and comprehensive utilization of garbage |
| CN101570429A (en) * | 2008-04-30 | 2009-11-04 | 王明根 | Processing method for making bricks by using municipal domestic sludge |
| CN101973683A (en) * | 2010-10-29 | 2011-02-16 | 同济大学 | Method for recycling sludge |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613403A (en) * | 2013-12-06 | 2014-03-05 | 杭州金享佳环保科技有限公司 | Process for making bricks by sludge |
| CN104843962A (en) * | 2015-05-18 | 2015-08-19 | 东江环保股份有限公司 | Method for preparing marsh gas and producing sintered bricks by using municipal sludge |
| CN110637698A (en) * | 2019-08-29 | 2020-01-03 | 广东清大同科环保技术有限公司 | Organic garden soil prepared from construction waste and municipal sludge |
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Application publication date: 20121010 |