CN104891776B - Compound sludge dewatering conditioner adaptable to incineration treatment technology of excess sludge as well as preparation method and application of conditioner - Google Patents
Compound sludge dewatering conditioner adaptable to incineration treatment technology of excess sludge as well as preparation method and application of conditioner Download PDFInfo
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- CN104891776B CN104891776B CN201510339054.5A CN201510339054A CN104891776B CN 104891776 B CN104891776 B CN 104891776B CN 201510339054 A CN201510339054 A CN 201510339054A CN 104891776 B CN104891776 B CN 104891776B
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Abstract
The invention relates to a compound sludge dewatering conditioner adaptable to an incineration treatment technology of excess sludge as well as a preparation method and an application of the conditioner. The conditioner comprises components as follows: 10%-20% of SiO2, 5%-10% of Al2O3, 1%-10% of Fe2O3, 0.5%-10% of CaO and 15%-60% of C. The preparation method comprises steps as follows: fly ash, urban garbage with chlorine-containing plastic removed, sludge, biomass, excess sludge which contains 97% of moisture and is produced by anaerobic water treatment and landfill leachate are evenly mixed in proportion, subjected to anaerobic fermentation for 3-5 days, pressed, dewatered and ventilated for 5-20 days, so that the conditioner is obtained. The compound sludge dewatering conditioner dewaters the sludge with a lysis technology, is non-toxic and harmless and cannot cause secondary pollution to the environment, and the dewatering cost is low; when the conditioner is applied to deep sludge dewatering, the method is simple, the moisture content can be decreased to 5-30%, preparation of sludge boiler fuel rods is facilitated, and the sludge incineration cost is reduced.
Description
Technical field
The invention belongs to sludge-dewatering compound conditioning agent and its preparation and application, adapt to remaining dirt particularly to a kind of
Mud carries out sludge-dewatering compound conditioning agent of incineration treatment technology and its preparation method and application.
Background technology
Mud is a kind of sticky mass producing in sewage disposal process, based on aerobic, anaerobe, organic
Matter content is higher, tightr with the combination of water.The moisture content of general Sewage Plant second pond mud is 97%～99%, its intermediate gap
Water accounts for 70%, and capillary water accounts for 20% about, and absorption water is about 7%, and intracellular water is about 3%.Sewage plant sludge is through precipitation at present
And after filter-press dehydration, moisture content is 75%～85%, now the water morphology in mud is mainly and adsorbs water and intracellular water.
Common pressure filter and centrifugal dehydrator cannot carry out deep dehydration and be less than less than 50% to this mud.80% about contains
The sludge volume of water rate is larger, easily corrupt it is difficult to transport and subsequent treatment, to subsequent treatment and disposal bring high cost, two
The problems such as secondary pollution.Technology for deeply dehydrating sludge predominantly adds conditioner, heat dehydration, microwave dehydration and raising
Pressure filter squeeze pressure or take several aspects such as several technology coupling.
Improve squeeze pressure increase investment, and dehydrated sludge cake aqueous be difficult to be less than 60%.Heat dehydration can reach very high
Dewatering efficiency, but it is also easy to produce secondary pollution, dehydration is costly.Usually take the method pair adding dehydrant and coupling pressure filter
Mud is dehydrated.Common dehydrant has polymeric iron, polymeric aluminum, calcium oxide (quick lime), polyacrylamide, flyash etc..
Their dewatering Principle is to rely on to increase neutralising capacity, bridging ability and penetration, mainly removing Interstitial Water and a small amount of capillary
Water, is difficult to the intracellular water of removing.Prior art Chinese medicine addition is larger, cannot act on cell interior water, opsonic action
Not notable, conditioner is urgently to be resolved hurrily the problems such as adding the comprehensive utilization that have impact on follow-up mud.
Content of the invention
The technical problem to be solved is the mud providing a kind of adaptation excess sludge to carry out incineration treatment technology
Dehydration composite conditioner and its preparation method and application, the conditioner in the present invention has using the dehydration of lysis technology, nontoxic nothing
Do harm to, environment will not be caused with secondary pollution, the low advantage of dehydration expense, and on the basis of positioning sludge incineration, targetedly
Design conditioner, that is, conditioner have dehydrations, have again can as mud as boiler oil important component part.
A kind of adaptation excess sludge of the present invention carries out the sludge-dewatering compound conditioning agent of incineration treatment technology, described mud
It is dehydrated the component of composite conditioner by mass percentage, including：SiO210-20%, Al2O35-10%, Fe2O31-10%,
CaO 0.5-10% and carbon C 15-60%.
Described SiO2、Al2O3、Fe2O3, CaO and C carry out authigenic material, remove the municipal refuse of plastic containing chlorine, flyash, dirt
Mud and anaerobism water process produce at least one in aqueous 97% excess sludge and percolate.
A kind of adaptation excess sludge carries out the preparation method of the sludge-dewatering compound conditioning agent of incineration treatment technology, including：
The municipal refuse, mud, biomass and the anaerobism water process that by flyash, remove plastic containing chlorine produce aqueous 97% and remain
Remaining mud and percolate are according to mass percent SiO210-20%, Al2O35-10%, Fe2O31-10%, CaO 0.5-
10% and C 15-60% even blend, wherein, spreads one layer after mud, biomass and municipal refuse are uniformly mixed in the above
Flyash, then sprays one or more percolate, aqueous 97% anaerobism water process and produces excess sludge or riverway sludge
Account for the 5-10% of gross weight, total height in 1-3 rice, the then heap second layer again, by that analogy, after heap, carry out anaerobic fermentation 3-5 days,
Press dewatering, divulges information 5-20 days, obtains sludge-dewatering compound conditioning agent.
A kind of adaptation excess sludge carries out the application of the sludge-dewatering compound conditioning agent of incineration treatment technology, and described mud takes off
Water composite conditioner is used for the deep dehydration of mud.
The method of the deep dehydration of described mud includes：Sludge conditioner is added in mud, sludge conditioner adds
The weight/mass percentage composition that amount accounts for mud dry weight is 10～60%, and even blend ferments 3-5 days, press dewatering, after fermentation filter pressing
Mixture is divulged information 5-20 days, and mud is dehydrated through biological drying.
Described mud is the mud or Industrial Waste Water Treatments mud obtained by Municipal sewage disposal.
Described draft type purges for aerator, and the position of purging is in heap body bottom, even distributing wind.
Moisture content of the cake 5-30% after described sludge dewatering.
It is an object of the invention to provide a kind of coupling sludge incineration processes the sludge dewatering combined cooker of disposing technique feature
The preparation method of agent, this conditioner have using the dehydration of lysis technology, nontoxic, environment will not be caused with secondary pollution, de-
The low advantage of water rate, and on the basis of positioning sludge incineration, targetedly design conditioner, that is, conditioner has dehydration to make
With, have again can as mud as boiler oil important component part.It is a further object to provide one kind makes
With the deep dehydration method of above-mentioned sludge conditioner, the method is simple, aqueous can be down to 5%～30%, be conducive to preparing again
Mud boiler oil rod, reduces sludge incineration expense.Mud after the dehydration obtaining in the present invention is organic to be improved, and is not tradition
Plus inanimate matter reduces calorific value.
Beneficial effect
(1) sludge-dewatering compound conditioning agent in the present invention using lysis technology dehydration, nontoxic, environment will not be made
Become secondary pollution, and it is low to be dehydrated expense；
(2), when for deeply dehydrating sludge, method is simple, and water content can for the sludge-dewatering compound conditioning agent in the present invention
It is down to 5%-30%, be conducive to preparing mud boiler oil rod, reduce sludge incineration expense.
Brief description
Fig. 1 is the sludge conditioner preparation process of sludge incineration technique in the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1
By mud, biomass, the municipal refuse removing plastic containing chlorine and flyash according to SiO2(10%):Al2O3(5%):
Fe2O3(1%):CaO (10%)：C (60%) mass ratio mixes, and other non-heavy metal constituent contents do not limit, hybrid mode：Dirty
Mud, biomass and municipal refuse spread one layer of flyash after uniformly mixing in the above, then spray a kind of percolate, account for total
Weight 10%, total height at 1 meter, the then heap second layer again, by that analogy, carry out anaerobic fermentation after heap 10 days, fermenting mixture
Ventilation 20 days, stacks finished product and can do sludge dehydration conditioner.
Sludge conditioner is added in mud, the weight/mass percentage composition that sludge conditioner addition accounts for mud dry weight is
60%, stir, anaerobic fermentation 5 days, divulge information 20 days to mixture after fermentation filter pressing, mud is dehydrated through biological drying, institute
After the sludge dewatering stated, moisture content of the cake is less than 5%.
Embodiment 2
By mud, biomass, the municipal refuse removing plastic containing chlorine and flyash according to SiO2(20%):Al2O3(8%):
Fe2O3(5%):CaO (6%)：C (50%), (other non-heavy metal constituent contents do not limit) mass ratio mixes, hybrid mode：Dirty
Mud, biomass and municipal refuse spread one layer of flyash after uniformly mixing in the above, then spray aqueous 97% anaerobism water process
Produce excess sludge or riverway sludge and account for gross weight (7%), at 3 meters, the then heap second layer again, by that analogy, after heap for total height
Carry out anaerobic fermentation 5 days, stack finished product and divulge information 15 days, sludge dehydration conditioner can be done.
Sludge conditioner is added in mud, the weight/mass percentage composition that sludge conditioner addition accounts for mud dry weight is
40%, stir, anaerobic fermentation 3 days, press dewatering, divulge information 15 days to mixture after fermentation filter pressing, mud is through biological dry
Dry dehydration, after described sludge dewatering, moisture content of the cake is less than 15%.
Embodiment 3
By mud, biomass, the municipal refuse removing plastic containing chlorine and flyash according to SiO2(15%):Al2O3
(10%):Fe2O3(10%):CaO (0.5%)：C (50%) (other non-heavy metal constituent contents do not limit) mass ratio mixes, and mixes
Conjunction mode：Mud, biomass and municipal refuse spread one layer of flyash after uniformly mixing in the above, then spray riverway sludge and account for
Gross weight (5%), total height at 2 meters, the then heap second layer again, by that analogy, carry out anaerobic fermentation after heap 4 days, stack finished product
Ventilation 5 days, can do sludge dehydration conditioner.
Sludge conditioner is added in mud, the weight/mass percentage composition that sludge conditioner addition accounts for mud dry weight is
10%, stir, anaerobic fermentation 3 days, divulge information 5 days to mixture after fermentation filter pressing, mud is dehydrated through biological drying, described
Sludge dewatering after moisture content of the cake be less than 30%.
Embodiment 4
By mud, biomass, the municipal refuse removing plastic containing chlorine and flyash according to SiO2(20%):Al2O3(9%):
Fe2O3(10%):CaO (10%)：C (15%) (other non-heavy metal constituent contents do not limit) mass ratio mixes, hybrid mode：
Mud, biomass and municipal refuse spread one layer of flyash after uniformly mixing in the above, then spray at aqueous 97% anaerobism water
Reason produces excess sludge (1%), total height at 2 meters, the then heap second layer again, by that analogy, carry out anaerobic fermentation after heap 5 days,
Stack finished product to divulge information 10 days, sludge dehydration conditioner can be done.
Sludge conditioner is added in mud, the weight/mass percentage composition that sludge conditioner addition accounts for mud dry weight is
30%, stir, anaerobic fermentation 5 days, divulge information 13 days to mixture after fermentation filter pressing, mud is dehydrated through biological drying, institute
After the sludge dewatering stated, moisture content of the cake is less than 20%.
Claims (8)
1. a kind of excess sludge that adapts to carries out the sludge-dewatering compound conditioning agent of incineration treatment technology it is characterised in that described dirt
Mud is dehydrated the component of composite conditioner by mass percentage, including：SiO210-20%, Al2O35-10%, Fe2O31-10%,
CaO 0.5-10% and carbon C 15-60%.
2. a kind of adaptation excess sludge according to claim 1 carries out the sludge dewatering combined cooker of incineration treatment technology
Agent is it is characterised in that described SiO2、Al2O3、Fe2O3, CaO and C carry out authigenic material, remove the municipal refuse of plastic containing chlorine, fine coal
Ash, mud and anaerobism water process produce at least one in aqueous 97% excess sludge and percolate.
3. a kind of adaptation excess sludge carries out the preparation method of the sludge-dewatering compound conditioning agent of incineration treatment technology, including：
It is remaining dirty that municipal refuse, mud, biomass and the anaerobism water process by flyash, removing plastic containing chlorine produces aqueous 97%
Mud and percolate are according to mass percent SiO210-20%, Al2O35-10%, Fe2O31-10%, CaO 0.5-10%
With C 15-60% even blend, wherein, after mud, biomass and municipal refuse are uniformly mixed, spread one layer of fine coal in the above
Ash, then sprays one or more percolate, aqueous 97% anaerobism water process produces excess sludge or riverway sludge accounts for always
The 5-10% of weight, total height in 1-3 rice, the then heap second layer again, by that analogy, after heap, carry out anaerobic fermentation 3-5 days, squeezing
Dehydration, divulges information 5-20 days, obtains sludge-dewatering compound conditioning agent.
4. a kind of adaptation excess sludge as claimed in claim 1 carries out the sludge-dewatering compound conditioning agent of incineration treatment technology
Application is it is characterised in that described sludge-dewatering compound conditioning agent is used for the deep dehydration of mud.
5. a kind of adaptation excess sludge according to claim 4 carries out the sludge-dewatering compound conditioning agent of incineration treatment technology
Application it is characterised in that the method for the deep dehydration of described mud includes：Sludge conditioner is added in mud, mud
The weight/mass percentage composition that conditioner addition accounts for mud dry weight is 10～60%, and even blend ferments 3-5 days, press dewatering, gives
After fermentation filter pressing, mixture is divulged information 5-20 days, and mud is dehydrated through biological drying.
6. a kind of adaptation excess sludge according to claim 5 carries out the sludge-dewatering compound conditioning agent of incineration treatment technology
Application it is characterised in that described mud be Municipal sewage disposal obtained by mud or Industrial Waste Water Treatments mud.
7. a kind of adaptation excess sludge according to claim 5 carries out the sludge-dewatering compound conditioning agent of incineration treatment technology
Application it is characterised in that described draft type be aerator purging, the position of purging is in heap body bottom, even distributing wind.
8. a kind of adaptation excess sludge according to claim 5 carries out the sludge-dewatering compound conditioning agent of incineration treatment technology
Application it is characterised in that moisture content of the cake 5-30% after described sludge dewatering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339054.5A CN104891776B (en) | 2015-06-17 | 2015-06-17 | Compound sludge dewatering conditioner adaptable to incineration treatment technology of excess sludge as well as preparation method and application of conditioner |
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| CN201510339054.5A CN104891776B (en) | 2015-06-17 | 2015-06-17 | Compound sludge dewatering conditioner adaptable to incineration treatment technology of excess sludge as well as preparation method and application of conditioner |
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| CN104891776A CN104891776A (en) | 2015-09-09 |
| CN104891776B true CN104891776B (en) | 2017-02-22 |
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| CN108017258A (en) * | 2017-12-13 | 2018-05-11 | 江苏和合环保集团有限公司 | A kind of industrial residue sludge drying agent and its application method |
| CN110272173A (en) * | 2019-06-25 | 2019-09-24 | 安徽理工大学 | A kind of processing method of sludge |
| CN114230134A (en) * | 2021-12-01 | 2022-03-25 | 山东尚科环境工程有限公司 | Inorganic conditioner for municipal sludge drying treatment and preparation method thereof |
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