CN104556628A - Landfill sludge solidifying apparatus and method - Google Patents
Landfill sludge solidifying apparatus and method Download PDFInfo
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- CN104556628A CN104556628A CN201510028180.9A CN201510028180A CN104556628A CN 104556628 A CN104556628 A CN 104556628A CN 201510028180 A CN201510028180 A CN 201510028180A CN 104556628 A CN104556628 A CN 104556628A
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- sludge
- landfill
- solidifying agent
- mud
- filler bag
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention relates to a landfill sludge solidifying apparatus and method. A filler bag containing a sludge solidifying agent is arranged in the sludge site in situ through a spile machine; and the sludge solidifying agent can react with the high-water-content sludge to remove pollutants in the sludge, the reaction can absorb moisture, and meanwhile, heat released by the reaction can accelerate the drying of the sludge. The filler bag containing the sludge solidifying agent is arranged in the sludge site in situ through the spile machine and connected with a tail gas purification device, so excess heat and gas generated by the reaction can be eliminated. In addition, the plant-derived landfill sludge site is adopted to continue improving the soil quality.
Description
Technical field
The invention belongs to sludge treatment and technical field of soil remediation, be specifically related to the method that ecosystem revivification system is repaired in the solidification of a kind of landfill sludge in-situ.
Background technology
Mud is the semi-solid state or solid matter that produce in sewage treatment process.The mud that produces in sewage work's production process (sewage becomes muddy water, dewaters and the mud cake that obtain through flocculation mud again) middle water ratio is up to 70% ~ 90%.Sewage work often processes 10,000 tons of sewage will produce mud 6-10 ton.Mud is water pollutant, and as it thoroughly not processed, pollution can exist always.Therefore, sludge treatment is the steps necessary realizing sewage disposal.Mud shape is grey black, vesicle-containing body, wherein containing a large amount of protein organism, various bacterial classification pathogenic agent.Mud is shelved for a long time and can be caused rotten smelly, produces the poison gas such as methane, hydrogen sulfide, and breed bacteria, mosquitos and flies, spread disease, life threatening.Also containing heavy metal, chemical in industrial sludge, pollute water and soil, harm environment.
Early stage sludge disposal is all to stack both at home and abroad, is poured into by mud in rubber ground, vegetable plot, green land, hillside.The method ignores pollution hidden trouble, serious threat environmental quality.The process of mud afterwards transfers underground landfill by storing up on the ground, and the floor space needed due to underground landfill is large, develops again other method for sludge treatment, as burned etc.Landfill mud was once the process approach of domestic sewage work lignin-sludge, and most of producer is once with the mode lignin-sludge of landfill.Sludge landfill place multiselect in the depression, field of this area, watershed, resident family is rare, and natural, ecological is local preferably.After landfill mud, Sludge landfill place messenger is rare gradually.But along with the expansion of people's scope of activity, the filthy environment that the stink damp that landfill mud sends, mosquitos and flies are many etc. causes makes people unhappy, causes Sludge landfill place nearby residents and complains problem of environmental pollution to government.Therefore, area that are fairly developed economically, government pays much attention to and has set about research lignin-sludge landfill yard problem.
There is following methods at present in the process of landfill mud:
1) burn: burning sludge is negative energy, and side effect is very large.Burning sludge is generally come by the power plant in each place.Mainly because chimney of electric plant is high, pollute dilution, not easily cause nearby residents to dislike mood.But because the corrodibility of mud is strong, cause electric power factory equipment to lose large, depreciation is rapid.Meanwhile, because producing serious secondary pollution in burning process process, wherein the most well known is exactly dioxin harm, year in and year out, easily causes genovariation, brings permanent disaster to resident's life and health of this area.On the other hand, power plant often burns 1 ton of mud, will produce the cigarette ash of about 186 kilograms in flue, non-activity, can not utilize, if wherein dioxin, heavy metal exceed standard, be Hazardous wastes, need the sanitary landfill expense (1200-2000 yuan/ton) of at substantial;
2) mummification burning: dewatered sludge calorific value have 3000 kilocalories/kilogram, with coal mixing incendivity, burn positive energy, do not produce dioxin.Because slag has activity, recycling is disposed, and can thoroughly process mud.Through investigating, existing mummification cost 427 yuan/ton, does not comprise equipment amortization; Drying equipment price individual event 500,000 yuan/ton, 300 tons of/day sludge drying project quotations 1.75 hundred million yuans.If do not have power plant, the mud after mummification does not have solution route, can not survive alone.If power plant burns charge, estimated cost can reach 260-480 yuan/ton, and add up to processing costs up to 687-907 yuan/ton of mud, ordinary enterprises is difficult to bear.
Existing method is all extracted out by landfill mud, then processes.Landfill sludge quantity is large, point is many, wide, pollutes large, and it is difficult to administer, and is difficult to up to now carry out original position improvement.Major cause is that landfill sludge in-situ is administered and there is many difficult problems:
1) swampland construction difficult problem: on the one hand, people can not enter (mud bearing capacity is little, is easily absorbed in threat to life), and mechanical means is more difficult to enter construction.On the other hand, the good leveling property of mud, large-area construction can not the end clearly, and shifting processing, displacement backfill cost are high, even do not have condition to continue operation and construction;
2) control of stink damp when constructing: landfill mud digs out once stirring, and the quantity discharged of stink damp is wherein by the increase of hundreds of times: on the one hand, operating personnel has toxic hazard, threatens its life security; On the other hand, contaminate environment is serious, and the life of harm nearby residents is with healthy.Mud not only produces foul smell through long-term landfill, also have the incendivity such as methane, hydrogen sulfide poison gas, if adopt traditional method that mud is dug out process, mining process can increase several times stink damp contaminate environment, affect staff and nearby residents is healthy, and then cause engineering to be difficult to carry out;
3) control expense problem: landfill mud is different from online new mud, processes 4-5 times that its difficulty, labor intensive and complicacy are all other operations.Treatment cost will reach more than 910 yuan/ton, and treatment cost is high;
4) risk: up to the present, does not find that original position administers the successful case of landfill mud.
Contriver is devoted to existing 7 years of field of sludge treatment, have developed sludge at low temperature carbonization cycle with suiting measures to local conditions utilizes disposal technology, store up mud dystopy and dispose resource technology, and successfully by Technology application to several engineering project.Wherein, the sludge at low temperature carbonization cycle being lived the portion's of building evaluation by state utilizes disposal technology in first phase of construction of Suzhou High-Tech Zone Sewage Plant certainly by checking and accepting successful operation 4 years, treatment capacity can reach 100 ton per days, nearly more than the 10 ten thousand tons of mud of accumulative process, now build the second stage of the project, treatment capacity can reach 130 ton per days.
Contriver investigates the original position improvement of rear discovery landfill mud, site remediation, reduction soil technology technology also not relevant at present and measure.
Summary of the invention
The object of this invention is to provide the apparatus and method for that a kind of original position administers solidification sludge.
In order to realize foregoing invention object, the technical solution used in the present invention is: a kind of curing apparatus of landfill mud, described curing apparatus comprises: at least two filler bags, wherein, in at least one filler bag, sludge solidifying agent is housed, in at least one filler bag, solid fraction particle is housed, described filler bag is selected from the one of non-woven fabrics or gauze.
In technique scheme, described sludge solidifying agent is selected from: one or more the mixture in lime powder, silty clay, flyash or cement.
In technique scheme, described solid fraction particle is selected from: one or both the mixture in clean sand or gac.
In technique scheme, the curing apparatus of described landfill mud further comprises one and above-mentioned filler bagging is located at board-plugging device in landfill mud, described board-plugging device comprises chassis, body frame, vibration hammer, intubate, plug, the front end of intubate is located at by described plug, and described plug is globular model plug.Described board-plugging device is arranged on floating dock or ground.
In technique scheme, the curing apparatus of described landfill mud also comprises one for the filling apparatus to filling sludge solidifying agent in filler bag or solid fraction particle, and at least one is for storing the storage tank of sludge solidifying agent or solid fraction particle.
In technique scheme, the curing apparatus of described landfill mud, also comprises an exhaust gas processing device, and described exhaust gas processing device connects the filler bag that solid fraction particle is housed; Described exhaust gas processing device is selected from: spray column or plasma cleaning equipment.
The invention also discloses a kind of curing of landfill mud, comprise the following steps:
(1) the filler bag that at least one is equipped with sludge solidifying agent is set in Sludge landfill district; When Sludge landfill district is outwards vented or dispels the heat, the filler bag that at least one is equipped with solid fraction particle is set in Sludge landfill district;
(2) after mud and sludge solidifying agent react, solid phase earth and the layering gradually of liquid phase sewage, the sewage transport of getting upper strata processes to Sewage Plant, lower floor's earth continues to react with sludge solidifying agent, the heat that simultaneous reactions produces and gas are discharged by the filler bag that solid fraction particle is housed, and then enter exhaust gas processing device;
(3) repeating step (1) and step (2) are until the earth rear conformance with standard after testing in Sludge landfill district, and region serike after treatment continues to optimize soil quality.
In technique scheme, described in be equipped with in the filler bag of sludge solidifying agent at least containing lime powder.
In technique scheme, when landfill mud district needs to strengthen, first the filler bag that at least one is equipped with cement is set in Sludge landfill district.
Due to the application of technique scheme, compared to the prior art, the present invention has the following advantages:
(1) the present invention by arranging the filler bag containing sludge solidifying agent by board-plugging device original position in landfill mud place, sludge solidifying agent on the one hand can remove pollutent in mud by the sludge reaction high with water ratio, reaction itself also absorbs moisture on the other hand, and the heat of simultaneous reactions release also can promote the drying of mud; The present invention arranges the filler bag containing solid fraction particle by board-plugging device original position simultaneously in landfill mud place, and connects exhaust gas processing device, and the waste heat that reaction can be produced, gas processing are fallen.In addition, the present invention also adopts plant also to continue to optimize soil quality in green former landfill mud place;
(2) the present invention according to actual needs, such as, near dykes and dams near landfill mud place, then can arrange concrete fill bag in advance in the venue, reinforces landfill mud field and prevents from jeopardizing dykes and dams.
Accompanying drawing explanation
Fig. 1 is non-woven carrier bag schematic diagram in embodiment.
Fig. 2 is the board-plugging device schematic diagram in embodiment.
Wherein 1 is filler bag, and 2 is board-plugging device.
Embodiment
Embodiment 1
(1) landfill mud place is characterized, analyze wherein principal pollutant contamination, water ratio, the degree of depth etc. of Sludge landfill, and select corresponding sludge solidifying agent and the consumption of the required solidifying agent of calculating; Landfill mud in this enforcement from domestic sewage factory, landfill depth average out to 3.5m, water ratio average out to 85%;
Heat-sealing machine is adopted to make the cylindric non-woven fabrics sack (as shown in Figure 1) of the long 3.5m of diameter 15cm, powdered lime, clean sand are respectively charged into above-mentioned non-woven fabrics sack, and the filler bag 1 obtaining being equipped with sludge solidifying agent powdered lime is some for subsequent use with the filler bag 2 that the clean sand of solid fraction particle is housed;
(2) as shown in Figure 2, in landfill mud place, the filler bag 1 that sludge solidifying agent powdered lime is housed is plugged by board-plugging device, the filler bag 2 of the clean sand of solid fraction particle is housed, and the spacing that the filler bag 1 of sludge solidifying agent powdered lime is wherein housed is 50cm, and plugging the degree of depth is 3.5m;
When Sludge landfill district is outwards vented or dispels the heat, arrange the filler bag 2 that the clean sand of solid fraction particle is housed in Sludge landfill district, filler bag 2 is plugged in the centre of every four filler bags 1, and plugging the degree of depth is also 3.5m; And the top of filler bag 2 is connected with exhaust gas processing device;
After mud and sludge solidifying agent react, solid phase earth and the layering gradually of liquid phase sewage, the sewage transport of getting upper strata processes to Sewage Plant, lower floor's earth continues to react with sludge solidifying agent, the heat that simultaneous reactions produces and gas are discharged by the filler bag that solid fraction particle is housed, and then enter exhaust gas processing device;
(3) repeating step (2) is until the earth rear conformance with standard after testing in Sludge landfill district, and region serike after treatment continues to optimize soil quality.
Embodiment 2
(1) landfill mud place is characterized, analyze wherein principal pollutant contamination, water ratio, the degree of depth etc. of Sludge landfill, and select corresponding sludge solidifying agent and the consumption of the required solidifying agent of calculating; Landfill mud in this enforcement from domestic sewage factory, landfill depth average out to 5m, water ratio average out to 80%;
Adopt heat-sealing machine to make the cylindric non-woven fabrics sack of the long 5m of diameter 10cm, powdered lime and flyash are loaded above-mentioned non-woven fabrics sack according to the ratio of mass ratio 85 to 15, and the filler bag 1 obtaining being equipped with sludge solidifying agent is some for subsequent use; Clean for solid fraction particle sand and gac are loaded above-mentioned non-woven fabrics sack according to the ratio of mass ratio 90 to 10, and the filler bag 2 obtaining being equipped with solid fraction particle is some for subsequent use;
(2) in landfill mud place, plugged the filler bag 1 that sludge solidifying agent is housed by board-plugging device, the filler bag 2 of solid fraction particle is housed, the spacing that the filler bag 1 of sludge solidifying agent powdered lime is wherein housed is 30cm, and plugging the degree of depth is 5m;
When Sludge landfill district is outwards vented or dispels the heat, arrange the filler bag 2 that the clean sand of solid fraction particle is housed in Sludge landfill district, filler bag 2 is plugged in the centre of every four filler bags 1, and plugging the degree of depth is also 5m; And the top of filler bag 2 is connected with exhaust gas processing device;
After mud and sludge solidifying agent react, solid phase earth and the layering gradually of liquid phase sewage, the sewage transport of getting upper strata processes to Sewage Plant, lower floor's earth continues to react with sludge solidifying agent, the heat that simultaneous reactions produces and gas are discharged by the filler bag that solid fraction particle is housed, and then enter exhaust gas processing device;
(3) repeating step (2) is until the earth rear conformance with standard after testing in Sludge landfill district, and region serike after treatment continues to optimize soil quality.
Embodiment 3
(1) landfill mud place is characterized, analyze wherein principal pollutant contamination, water ratio, the degree of depth etc. of Sludge landfill, and select corresponding sludge solidifying agent and the consumption of the required solidifying agent of calculating; Landfill mud in this enforcement from domestic sewage factory, landfill depth average out to 12m, water ratio average out to 78%;
Adopt heat-sealing machine to make the cylindric non-woven fabrics sack of the long 12m of diameter 10cm, powdered lime and flyash are loaded above-mentioned non-woven fabrics sack according to the ratio of mass ratio 80 to 20, and the filler bag 1 obtaining being equipped with sludge solidifying agent is some for subsequent use; Clean for solid fraction particle sand and gac are loaded above-mentioned non-woven fabrics sack according to the ratio of mass ratio 95 to 5, and the filler bag 2 obtaining being equipped with solid fraction particle is some for subsequent use;
(2) in landfill mud place, plugged the filler bag 1 that sludge solidifying agent is housed by board-plugging device, the filler bag 2 of solid fraction particle is housed, the spacing that the filler bag 1 of sludge solidifying agent powdered lime is wherein housed is 30cm, and plugging the degree of depth is 12m;
When Sludge landfill district is outwards vented or dispels the heat, arrange the filler bag 2 that the clean sand of solid fraction particle is housed in Sludge landfill district, filler bag 2 is plugged in the centre of every four filler bags 1, and plugging the degree of depth is also 12m; And the top of filler bag 2 is connected with exhaust gas processing device;
After mud and sludge solidifying agent react, solid phase earth and the layering gradually of liquid phase sewage, the sewage transport of getting upper strata processes to Sewage Plant, lower floor's earth continues to react with sludge solidifying agent, the heat that simultaneous reactions produces and gas are discharged by the filler bag that solid fraction particle is housed, and then enter exhaust gas processing device;
(3) repeating step (2) is until the earth rear conformance with standard after testing in Sludge landfill district, and region serike after treatment continues to optimize soil quality.
Claims (10)
1. a curing apparatus for landfill mud, is characterized in that, described curing apparatus comprises: at least two filler bags, wherein, in at least one filler bag, sludge solidifying agent is housed, at least one filler bag, solid fraction particle is housed, described filler bag is selected from the one of non-woven fabrics or gauze.
2. the curing apparatus of landfill mud according to claim 1, is characterized in that, described sludge solidifying agent is selected from: one or more the mixture in lime powder, silty clay, flyash or cement.
3. the curing apparatus of landfill mud according to claim 1, is characterized in that, described solid fraction particle is selected from: one or both the mixture in clean sand or gac.
4. the curing apparatus of landfill mud according to claim 1, it is characterized in that, also comprise one and above-mentioned filler bagging is located at board-plugging device in landfill mud, described board-plugging device comprises chassis, body frame, vibration hammer, intubate, plug, the front end of intubate is located at by described plug, and described plug is globular model plug.
5. the curing apparatus of landfill mud according to claim 4, is characterized in that, described board-plugging device is arranged on floating dock or ground.
6. the curing apparatus of landfill mud according to claim 1, is characterized in that, also comprise one for the filling apparatus to filling sludge solidifying agent in filler bag or solid fraction particle, and at least one is for storing the storage tank of sludge solidifying agent or solid fraction particle.
7. the curing apparatus of landfill mud according to claim 1, is characterized in that, also comprises an exhaust gas processing device, and described exhaust gas processing device connects the filler bag that solid fraction particle is housed; Described exhaust gas processing device is selected from: spray column or plasma cleaning equipment.
8. a curing for landfill mud, is characterized in that, comprises the following steps:
(1) the filler bag that at least one is equipped with sludge solidifying agent is set in Sludge landfill district; When Sludge landfill district is outwards vented or dispels the heat, the filler bag that at least one is equipped with solid fraction particle is set in Sludge landfill district;
(2) after mud and sludge solidifying agent react, solid phase earth and the layering gradually of liquid phase sewage, the sewage transport of getting upper strata processes to Sewage Plant, lower floor's earth continues to react with sludge solidifying agent, the heat that simultaneous reactions produces and gas are discharged by the filler bag that solid fraction particle is housed, and then enter exhaust gas processing device;
(3) repeating step (1) and step (2) are until the earth rear conformance with standard after testing in Sludge landfill district, and region serike after treatment continues to optimize soil quality.
9. the curing of landfill mud according to claim 8, is characterized in that: described in be equipped with in the filler bag of sludge solidifying agent at least containing lime powder.
10. the curing of landfill mud according to claim 8, is characterized in that: when landfill mud district needs to strengthen, first arrange the filler bag that at least one is equipped with cement in Sludge landfill district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028180.9A CN104556628A (en) | 2015-01-20 | 2015-01-20 | Landfill sludge solidifying apparatus and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028180.9A CN104556628A (en) | 2015-01-20 | 2015-01-20 | Landfill sludge solidifying apparatus and method |
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| CN104556628A true CN104556628A (en) | 2015-04-29 |
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| CN201510028180.9A Pending CN104556628A (en) | 2015-01-20 | 2015-01-20 | Landfill sludge solidifying apparatus and method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387371A (en) * | 2013-06-26 | 2013-11-13 | 湖北加德科技股份有限公司 | Composite curing agent for city sludge solidification/stabilization and application thereof |
| CN103495601A (en) * | 2013-09-30 | 2014-01-08 | 苏州绿地土壤修复科技有限公司 | In-situ chemical remediation method of soil |
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- 2015-01-20 CN CN201510028180.9A patent/CN104556628A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387371A (en) * | 2013-06-26 | 2013-11-13 | 湖北加德科技股份有限公司 | Composite curing agent for city sludge solidification/stabilization and application thereof |
| CN103495601A (en) * | 2013-09-30 | 2014-01-08 | 苏州绿地土壤修复科技有限公司 | In-situ chemical remediation method of soil |
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Application publication date: 20150429 |