CN204174028U - One way of life garbage leachate treatment device - Google Patents
One way of life garbage leachate treatment device Download PDFInfo
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- CN204174028U CN204174028U CN201420584237.4U CN201420584237U CN204174028U CN 204174028 U CN204174028 U CN 204174028U CN 201420584237 U CN201420584237 U CN 201420584237U CN 204174028 U CN204174028 U CN 204174028U
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Abstract
The utility model relates to the multiple-stage treatment technical field of water, waste water or sewage, specifically one way of life garbage leachate treatment device.The exit end of grid diafiltration liquid pool connects the inlet end of leachate pretreatment tank, the percolate exit end of leachate pretreatment tank connects the inlet end of deaerating chamber, the exit end of deaerating chamber connects the inlet end of vacuum evaporator, the condensate outlet end of vacuum evaporator connects the inlet end of condensate tank, the exit end of condensate tank connects filtrate clean water basin by reverse osmosis unit, the concentrated solution outlet end of vacuum evaporator is connected to cement kiln inlet end by sewage dosing pump, cement kiln inlet end is also connected with the macrobead thing exit end in grid percolate pond by revolving feeder.The utility model utilizes cement kiln synergic processing percolate concentrated solution that biological organic matter and heavy metal can be made thoroughly to process, and avoids secondary pollution, meanwhile, improves the duration of service of RO reverse osmosis membrane, reduces the running cost of original reverse osmosis technology.
Description
[technical field]
The utility model relates to the multiple-stage treatment technical field of water, waste water or sewage, specifically one way of life garbage leachate treatment device.
[background technology]
Percolate refers to and derives from the moisture that in refuse landfill, rubbish itself contains, the sleet water entering landfill yard and other moisture, the saturation moisture capacity of deduction rubbish, overburden layer, and a kind of high-concentration waste water experiencing waste layer and overburden layer and formed.The water quality of percolate is quite complicated, general containing high-enriched organics, heavy metallic salt, SS and ammonia nitrogen, percolate is contaminated soil and earth surface water source not only, also can pollute underground water, much research is had for the removal of CODCr in percolate, generally adopt Biochemical method, but treatment effect is not but very desirable, and running cost is relatively high more.China's domestic waste rapid development, every year with the speed increment of 6%-8%, after 2003, total amount is stabilized in annual about 1.5 hundred million tons substantially.At present, National urban domestic refuse accumulation volume of cargo in storage has reached 7,000,000,000 tons, takes up an area about more than 80 ten thousand mu, in recent years again with every year on average 4.8% speed sustainable growth.More than 600 city, the whole nation, except county town, the big and medium-sized cities of existing 2/3rds are absorbed among the encirclement of rubbish, and have the city of 1/4th not have good place heap garbage.No matter be landfill disposal, burning disposal, or compost treatment, in treating processes, all can there is oozing out of percolate, percolate complicated component, not only containing organism, also have many poisonous and hazardous heavy metals.According to measuring and calculating, China's domestic refuse produces the percolate of more than about 1,500,000 tons every day, if directly discharged, all can produce severe contamination to surface water, underground water, threaten the domestic water of resident simultaneously.
In currently available technology, can the technology of qualified discharge based on RO reverse osmosis technology, but this technical finesse percolate also has a lot of problem.As when processing percolate, pre-treatment is thorough not, causes reverse osmosis membrane easily to block.In addition, the objectionable impurities in percolate does not also thoroughly process totally by the concentrated solution filtered out, and the material discharged after the prior art process still also exists problem such as harm soil, environment etc.
[utility model content]
The purpose of this utility model is exactly to be difficult to process for during the objectionable impuritiess such as the organic matter in prior art in process percolate and heavy metal and be difficult to process the technical problems such as clean, a kind of novel structure, safe and reliable is provided, consumer waste infiltration liquid can be made thoroughly to realize the consumer waste infiltration liquid treatment unit of harmless treatment, comprise grid diafiltration liquid pool, the gap length≤2mm between the grid grizzly bar in grid diafiltration liquid pool.The exit end of described grid diafiltration liquid pool connects the inlet end of leachate pretreatment tank, the percolate exit end of leachate pretreatment tank connects the inlet end of deaerating chamber, the exit end of deaerating chamber connects the inlet end of vacuum evaporator, the condensate outlet end of vacuum evaporator connects the inlet end of condensate tank, the exit end of condensate tank connects filtrate clean water basin by RO reverse osmosis unit, the concentrated solution outlet end of vacuum evaporator is connected to cement kiln inlet end by sewage dosing pump, cement kiln inlet end is also connected with the macrobead thing exit end in grid percolate pond by revolving feeder.Vacuum evaporator is provided with steam-generating installation, and steam-generating installation exit end connects gas compressor inlet end, and gas compressor exit end connects the steam-in end of vacuum evaporator, and described vacuum evaporator is also provided with vacuum extractor.Leachate pretreatment tank also has a material feeding end, and material feeding end connects sulfuric acid aluminium pot.
Treatment process mainly comprises the following steps:
(1), after being collected by percolate, the grid filtration in grid diafiltration liquid pool falls the large granular impurity in percolate, large granular impurity is added cement kiln process, realizes harmless treatment.
(2) percolate after grid, adds Tai-Ace S 150 pre-treatment; Realize the coagulant precipitation of percolate;
(3) pretreated percolate, sends into vacuum evaporator concentration, makes percolate be divided into concentrated solution and phlegma: this part adopts negative pressure evaporation thickener, percolate is separated, adopt negative pressure, make boiling point lowering, effectively reduce the heat needed for evaporation;
(4) concentrated solution quantitatively squeezes into cement kiln through sump pump, realizes the associated treatment of cement kiln, utilizes high temperature and the alkaline environment of cement kiln, the organic matter effectively in process percolate; Heavy metal in percolate, in the process of clinkersintering, by heavy metals immobilization in grog, exists with the form of chemical combination state, is also not easy to separate out in later stage use procedure.
(5) phlegma is through RO reverse-osmosis treated, makes percolate reach emission standard.Make significantly to reduce through the impurity of RO reverse osmosis membrane through this art breading, make RO reverse osmosis be not easy blocking, the speed that membrane flux reduces declines, and effectively improves the duration of service of RO reverse osmosis membrane, reduces traditional RO reverse osmosis technology running cost.
The utility model compared with the existing technology, its advantage is to use the utility model to utilize cement kiln synergic processing percolate concentrated solution that biological organic matter and heavy metal can be made thoroughly to process, avoid secondary pollution, simultaneously, improve the duration of service of RO reverse osmosis membrane, reduce the running cost of original reverse osmosis technology.After making process, percolate reaches emission standard or supplies routine use.The all indexs of the percolate processed all can meet the discharge index of national consumer waste infiltration liquid process.In addition, input cost of the present utility model is low, and about 5 ~ 60,000 yuan, operation cost is at 30 ~ 40 yuan/t, and non-secondary pollution, utilize the concentrated solution of cement kiln synergic processing percolate, the secondary pollution of percolate can be avoided completely.The utility model utilizes vacuum evaporator concentration percolate, realizes the minimizing process of percolate, goes out salinity water, colloidal content is lower, can reduce RO reverse-osmosis treated link cost, not produce atmosphere pollution burden, corrosion-free to equipment.
[accompanying drawing explanation]
Fig. 1 is the process flow sheet of the utility model embodiment;
Fig. 2 is each parts interface chart of the utility model embodiment;
As shown in the figure, in figure: 1. grid diafiltration liquid pool 2. leachate pretreatment tank 3. sulfuric acid aluminium pot 4. deaerating chamber 5. vacuum evaporator 6. gas compressor 7. sewage dosing pump 8. cement kiln 9. condensate tank 10.RO reverse osmosis unit 11. filtrate clean water basin 12. percolate stoste 13. vacuum extractor 14. steam-generating installation 15. phlegma 16. concentrated solution 17. filtrate 18. macrobead thing;
Fig. 2 is specified to be Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is one way of life garbage leachate treatment device, first by percolate through grid, filter out large granular impurity, in pre-treatment, add Tai-Ace S 150, realize the coagulant precipitation of percolate.Percolate after coagulant precipitation is through vacuum evaporator 5 concentration, can make to isolate more concentrated solution, and heavy metal also can more than 80%, condense in concentrated solution, concentrated solution utilizes high temperature and the alkaline environment of cement kiln, and in cement kiln, process is organic thoroughly destroys Sum decomposition under the high temperature of 1450 DEG C of high temperature.Heavy metal also at high temperature in the process of clinkersintering, organically and clinkersintering to one piece, occur with the form of chemical combination state, in follow-up use, be also not easy precipitation.Phlegma accounts for more than 85% after percolate process, and concentrate through coagulant precipitation and negative pressure evaporation, the impurity contained in phlegma significantly reduces, and can improve the duration of service of RO reverse osmosis membrane, reduces the cost of traditional RO reverse osmosis technology process.Its key step is as follows:
1) after percolate being collected, through the grid of below 2mm, filter out the large granular impurity in percolate, large granular impurity is entered cement kiln 8 decomposing furnace by revolving feeder, utilize cement kiln associated treatment, realize the resource utilization of filter residue, harmless treatment;
2) percolate after grid, adds Tai-Ace S 150 pre-treatment; Realize the coagulant precipitation of percolate; Quantitatively add medicament according to treatment capacity, when pre-treatment coagulating agent reaches 2g/L, coagulant precipitation rate is the highest, and COD clearance also can reach about 80%; PH value is adjusted to 6 ~ 6.5, for follow-up negative pressure evaporation concentration systems treatment system provides favourable condition;
3) pretreated percolate, send into vacuum evaporator concentrating and treating system, percolate is made to be divided into concentrated solution and phlegma: this part adopts negative pressure evaporation to concentrate, and vacuum tightness is more than 0.8MPA, and holding temperature is below 70 DEG C, chlorion can be avoided the corrosion of negative pressure evaporation concentration systems, percolate is separated, adopts negative pressure, make boiling point lowering, effectively reduce the heat needed for evaporation, treatment capacity is maximum can reach 150m
3/ d;
4) concentrated solution through sump pump 7 quantitative squeeze into cement kiln, realize the associated treatment of cement kiln, utilize high temperature and the alkaline environment of cement kiln, organic under the high temperature of cement kiln 1450 DEG C, obtain complete harmless treatment; Heavy metal in percolate is in the process of clinkersintering, and under high temperature action, heavy metals immobilization is by grog, and heavy metal exists with the form of chemical combination state, is also not easy to separate out in later stage use procedure.The problem at heavy metal contamination water source have also been obtained effective solution;
5) phlegma is through RO reverse-osmosis treated, makes percolate reach emission standard.The water of condensation impurity crossed through this art breading significantly reduces, the process of RO low pressure reverse osmosis can be used, pressure maintains 6 ~ 10bar, RO reverse osmosis membrane is made to be not easy blocking, the speed that membrane flux reduces declines, effectively improve the duration of service of RO reverse osmosis membrane, reduce traditional RO reverse osmosis technology running cost.Water of condensation through low pressure RO reverse-osmosis treated can reach the strictest emission standard.RO reverse osmosis membrane can reach about 5 years simultaneously.
By negative pressure evaporation, concentrated and cement kiln combines the utility model patent, makes traditional consumer waste infiltration liquid secondary pollution and processing cost is high obtains effective solution.
Claims (5)
1. one way of life garbage leachate treatment device, comprise grid diafiltration liquid pool, it is characterized in that the exit end of described grid diafiltration liquid pool (1) connects the inlet end of leachate pretreatment tank (2), the percolate exit end of leachate pretreatment tank connects the inlet end of deaerating chamber (4), the exit end of deaerating chamber connects the inlet end of vacuum evaporator (5), the condensate outlet end of vacuum evaporator connects the inlet end of condensate tank (9), the exit end of condensate tank connects filtrate clean water basin by RO reverse osmosis unit, the concentrated solution outlet end of vacuum evaporator is connected to cement kiln (8) inlet end by sewage dosing pump (7), cement kiln inlet end is also connected with grid percolate pond (1) macrobead thing exit end.
2. one way of life garbage leachate treatment device as claimed in claim 1, it is characterized in that described vacuum evaporator is provided with steam-generating installation, steam-generating installation exit end connects gas compressor (6) inlet end, gas compressor exit end connects the steam-in end of vacuum evaporator, and described vacuum evaporator is also provided with vacuum extractor.
3. one way of life garbage leachate treatment device as claimed in claim 1, is characterized in that described leachate pretreatment tank also has a material feeding end, and material feeding end connects sulfuric acid aluminium pot (3).
4. one way of life garbage leachate treatment device as claimed in claim 1, is characterized in that the gap length≤2mm between the grid grizzly bar in described grid diafiltration liquid pool (1).
5. one way of life garbage leachate treatment device as claimed in claim 1, is characterized in that the macrobead thing exit end of described grid diafiltration liquid pool connects cement kiln inlet end by revolving feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584237.4U CN204174028U (en) | 2014-10-10 | 2014-10-10 | One way of life garbage leachate treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420584237.4U CN204174028U (en) | 2014-10-10 | 2014-10-10 | One way of life garbage leachate treatment device |
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| CN204174028U true CN204174028U (en) | 2015-02-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN112028510A (en) * | 2020-08-24 | 2020-12-04 | 郑州英莱机电设备有限公司 | Method and equipment for treating landfill leachate |
-
2014
- 2014-10-10 CN CN201420584237.4U patent/CN204174028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174332A (en) * | 2015-07-16 | 2015-12-23 | 浙江大学 | Method for processing garbage leachate and device thereof |
| CN112028510A (en) * | 2020-08-24 | 2020-12-04 | 郑州英莱机电设备有限公司 | Method and equipment for treating landfill leachate |
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