CN203960009U - A kind of biochemical treatment apparatus of percolate - Google Patents
A kind of biochemical treatment apparatus of percolate Download PDFInfo
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- CN203960009U CN203960009U CN201420380776.6U CN201420380776U CN203960009U CN 203960009 U CN203960009 U CN 203960009U CN 201420380776 U CN201420380776 U CN 201420380776U CN 203960009 U CN203960009 U CN 203960009U
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Abstract
The utility model relates to a kind of biochemical treatment apparatus of percolate, anaerobic biofilter, the biochemical oxygen compatibility pool of one-level, anoxic pond, secondary biochemical Aerobic Pond and ceramic membrane cisterna are connected by pipeline successively, percolate water inlet water distributor extend into anaerobic biofilter inside, in anaerobic biofilter, be filled with immobilization biological filler, the biochemical oxygen compatibility pool of one-level and described secondary biochemical Aerobic Pond inside are all filled with fixed cilium shape filler, in anoxic pond, be provided with stirrer, in pottery membrane cisterna, be provided with ceramic film component, percolate rising pipe is communicated with the water outlet of described ceramic film component.The utlity model has good treatment effect, adopt the anaerobism-oxygen-anoxic-aerobic microbial environment of holding concurrently, improve the effect of biochemical treatment percolate, alleviated the pressure of follow-up advanced treatment, reduced investment and the running cost of integrated artistic; Can ensure the qualified discharge of percolate with absorbing process or reverse osmosis technology combination simultaneously.
Description
Technical field
The utility model relates to a kind of biochemical treatment apparatus of percolate, belongs to refuse treatment field, is applied to city domestic refuse percolation liquid processing.
Background technology
Since entering 21 century, China's rapid economic development, city size constantly expands, and urbanization process is constantly accelerated.But Municipal Domestic Garbage Output also sharply increases.According to statistics, at present China's municipal wastes year generation has exceeded 1.4 hundred million tons, and every year with 8%～10% speed increment, produces per capita quantity of refuse daily and exceeded 1.1kg, and the domestic refuse that only big city such as Beijing, Shanghai produces every day just reaches 20,000 tons of left and right.China has become rubbish in the world and has surrounded one of the most serious country in city.
2012,654 the planned city domestic refuse amounts of clearing in the whole nation were 1.57 hundred million tons, and approximately 7,000 ten thousand tons, county town and cities and towns amount to 2.2 hundred million tons of rubbish.The domestic refuse of China 90.5% is processed by the mode of landfill disposal.Percolate be rubbish stack and landfill process in owing to fermenting and leaching, the surface water and groundwater of precipitation soak the sewage leaching.Percolate complicated component, not only contains a large amount of organic substances, also contains ammonia nitrogen and the poisonous and hazardous pollutent of high density.And along with the landfill yard prolongation of working life, the concentration of ammonia nitrogen is more and more higher, what have has even reached 5000mg/L.Too high ammonia nitrogen concentration has not only increased the load of percolate biochemical treatment system, also cause C/N to reduce, carbon source deficiency, the imbalance of microbial nutrition ratio, and the high density free ammonia producing also can be to microorganisms restraining effect, affect that biochemical treatment system is stable effectively to be moved.Percolate hazard ratio is larger, and the pollution of 1 ton of percolate generation is equivalent to the pollution that 100 tons of sanitary sewages produce.According to measuring and calculating, China's domestic refuse will produce serious pollution if be directly discharged in environment to surface water environment, groundwater environment more than can producing percolate 100～1,200,000 ton average every day, threatens resident's drinking water safety simultaneously.
Refuse leachate treatment technology route is generally taked " pre-treatment+biochemical treatment+advanced treatment ".Wherein the main order of pre-treatment is to remove ammonia nitrogen and inorganic impurity, improves the biodegradability of percolate, mainly comprises coagulating sedimentation, stripping, advanced oxidation treatment technology etc.; The main purpose of biochemical treatment is organic pollutant and the ammonia nitrogen of removing in percolate, mainly adopts anaerobism+aerobic treatment process; Advanced treatment technology main purpose is suspended substance, refractory organic and the colloid etc. of removing in percolate, the general method that comprises physics and chemistry that adopts of advanced treatment technology, comprising: the high-level oxidation technologies such as membrane technique, active carbon adsorption technology, Fenton oxidation technology, electrochemical oxidation technology.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of biochemical treatment apparatus of percolate, improves the processing efficiency of biochemical treatment, reduces investment and the operating performance of follow-up advanced treatment.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of biochemical treatment apparatus of percolate, comprise percolate water inlet water distributor, anaerobic biofilter, the biochemical oxygen compatibility pool of one-level, anoxic pond, secondary biochemical Aerobic Pond, pottery membrane cisterna and percolate rising pipe, described anaerobic biofilter, the biochemical oxygen compatibility pool of one-level, anoxic pond, secondary biochemical Aerobic Pond and ceramic membrane cisterna are connected by pipeline successively, described percolate water inlet water distributor extend into described anaerobic biofilter inside, in described anaerobic biofilter, be filled with immobilization biological filler, on described immobilization biological filler, be attached with anaerobion, the biochemical oxygen compatibility pool of described one-level and described secondary biochemical Aerobic Pond inside are all filled with fixed cilium shape filler, on described fixed cilium shape filler, be attached with aerobic microbiological, in described anoxic pond, be provided with stirrer, in described ceramic membrane cisterna, be provided with ceramic film component, described percolate rising pipe is communicated with the water outlet of described ceramic film component.
Refuse leachate treatment technology route in the application is generally taked " pre-treatment+biochemical treatment+advanced treatment ", the utility model is the technical scheme proposing for biochemical treatment, and its pre-treatment and advanced treatment all adopt technique means well known in the art to realize.The rising pipe of the pretreatment technology before described percolate water inlet water distributor is communicated with, described percolate rising pipe is communicated with the water inlet pipe of follow-up advanced treatment.
On the basis of technique scheme, the utility model can also do following improvement.
Further, this device also comprises aeration tube, and the end of described aeration tube extend into respectively the inside of the biochemical oxygen compatibility pool of described one-level, described secondary biochemical Aerobic Pond and described ceramic membrane cisterna.
Further, described ceramic membrane cisterna is also communicated with described anoxic pond by nitrification liquid reflux line, and described nitrification liquid reflux line is provided with nitrification liquid reflux pump.
The beneficial effects of the utility model are:
1. the utility model adopts anaerobic biofilter-two-stage biological cilium shape filler biochemical treatment-ceramic membrane filter combining process to dispose garbage percolate can effectively remove ammonia nitrogen, the total nitrogen in percolate, reduce COD, BOD, in the rear percolate of routine biochemistry processing, COD concentration is at 600～900mg/L, after native system biochemical treatment water outlet, COD concentration is about 300～500mg/L, has greatly reduced construction investment and the running cost of follow-up advanced treatment.
2. fixed cilium shape applying filler can effectively improve the function of biochemical system, fixed cilium shape filler has efficient denitrification effect, in the aerobic microbiological that research shows to adhere to, can comprise a large amount of nitrobacterias on fixed cilium shape filler, wherein in the time that aerobic microbiological is efficient nitrobacteria, can effectively make ammonia nitrogen change nitrate into through nitration reaction, remove the ammonia nitrogen in percolate, immobilization cilium shape filler inside can form anoxic or anaerobic environment simultaneously, easily form synchronous nitration and denitrification, and then further remove the total nitrogen in percolate.And the use of immobilization cilium shape filler can reduce air demand, saving biochemical system running cost.
3. adopt secondary biochemical, add ciliate biologic packing material simultaneously and adopt ceramic film component water outlet can effectively improve the microbial biomass in reactive system, raising system is removed the effect of refractory organic in percolate.
4. the utility model adopts inorganic ceramic film to replace conventional organic membrane assembly, and ceramic membrane has the obstruction of being not easy, and is difficult for the advantages such as film pollutes, and transmembrane pressure is little, long service life occur, and can be suitable for the percolate processing of water quality complexity.
5. the employing dissolved oxygen of oxygen and aerobic unit and the redox potential ORP value held concurrently in biochemical system jointly controls biochemical system to be moved, and the parameter that can optimize the system operation like this reaches the feature of energy efficient.
6. process makes full use Microbiological Principle, in conjunction with the cultivation of dominant bacteria, form the anaerobism-oxygen-anoxic-aerobic different microorganisms living environment of holding concurrently, form different microbial populations, thereby improve the effect of biochemical treatment percolate, reduce investment and the running cost of follow-up physico-chemical process advanced treatment.
7. whole biochemical system management operating is simple, after fixed cilium shape filler one-step installation, does not need back flushing, can not stop up, and can not receive, and does not need work-ing life to change more than 10.
8. anaerobic biofilter can effectively be removed difficult for biological degradation thing in percolate, improves the biodegradability of percolate.
9. biochemical treatment system need not carry out sludge reflux, and surplus sludge volume is few, and mud easily dewaters.
10. system employing anaerobic biofilter, cilium shape biologic packing material have the feature fast, system anti impulsion load that starts.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device.
In accompanying drawing, the list of parts of each label representative is as follows:
1, percolate water inlet water distributor, 2, immobilization biological filler, 3, anaerobic biofilter, 4, the biochemical oxygen compatibility pool of one-level, 5, fixed cilium shape filler, 6, anoxic pond, 7, stirrer, 8, aeration tube, 9, nitrification liquid reflux line, 10, nitrification liquid reflux pump, 11, secondary biochemical Aerobic Pond, 12, ceramic membrane cisterna, 13, percolate rising pipe.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
(in figure, the connecting tube of each reaction tank does not draw as shown in Figure 1, but all adopt pipeline conventional in this area to realize the conveying of liquid), a kind of biochemical treatment apparatus of percolate, comprise percolate water inlet water distributor 1, anaerobic biofilter 3, the biochemical oxygen compatibility pool 4 of one-level, anoxic pond 6, secondary biochemical Aerobic Pond 11, pottery membrane cisterna 12 and percolate rising pipe 13, described anaerobic biofilter 3, the biochemical oxygen compatibility pool 4 of one-level, anoxic pond 6, secondary biochemical Aerobic Pond 11 and ceramic membrane cisterna 12 are connected by pipeline successively, described percolate water inlet water distributor 1 extend into described anaerobic biofilter 3 inside, in described anaerobic biofilter 3, be filled with immobilization biological filler 2, on described immobilization biological filler 2, be attached with anaerobion, the biochemical oxygen compatibility pool 4 of described one-level and described secondary biochemical Aerobic Pond 11 inside are all filled with fixed cilium shape filler 5, on described fixed cilium shape filler 5, be attached with aerobic microbiological, in described anoxic pond 6, be provided with stirrer 7, in described ceramic membrane cisterna 12, be provided with ceramic film component, described percolate rising pipe 13 is communicated with the water outlet of described ceramic film component.
Described percolate water inlet water distributor 1 carries out water distribution uniformity from the bottom of described anaerobic biofilter 3, and water outlet, from the top water outlet of described anaerobic biofilter 3, enters the biochemical oxygen compatibility pool 4 of one-level.
Described fixed cilium shape filler 5 has: easily biofilm, can improve the denitrification ability of system.
This device also comprises aeration tube 8, and the end of described aeration tube 8 extend into respectively the inside of the biochemical oxygen compatibility pool 4 of described one-level, described secondary biochemical Aerobic Pond 11 and described ceramic membrane cisterna 12.Described aeration tube 8 extend into the bottom of the biochemical oxygen compatibility pool 4 of described one-level, described secondary biochemical Aerobic Pond 11 and inner 12 inside of described ceramic membrane cisterna and carries out aeration, the gas being mainly filled with can be very fast the pond of diffusion in liquid in, create good condition to microbial reaction.
Described ceramic membrane cisterna 12 is also communicated with described anoxic pond 6 by nitrification liquid reflux line 9, and described nitrification liquid reflux line 9 is provided with nitrification liquid reflux pump 10.
Refuse leachate treatment technology route in the application is generally taked " pre-treatment+biochemical treatment+advanced treatment ", the utility model is the technical scheme proposing for biochemical treatment, and its pre-treatment and advanced treatment all adopt technique means well known in the art to realize.The rising pipe of the pretreatment technology before described percolate water inlet water distributor 1 is communicated with, described percolate rising pipe 13 is communicated with the water inlet pipe of follow-up advanced treatment.
The concrete use step of biochemical treatment apparatus of percolate of the present utility model is:
(1) will send into anaerobic biofilter 3 through pretreated percolate, organic pollutant in percolate by the anaerobion in anaerobic biofilter 3 hold back, Adsorption and decomposition, refractory organic is become to readily biodegradable organism; Described anaerobic biofilter 3 is the inner bio-reactor that is filled with immobilization biological filler 2, and immobilization biological filler 2 is immersed in water, and anaerobion is attached on immobilization biological filler 2; Percolate flows into anaerobic biofilter, contact with the microorganism of filter material surface, organic pollutant in percolate by anaerobion hold back, Adsorption and decomposition, refractory organic is become to readily biodegradable organism, improve the biodegradability of percolate; Described anaerobic biofilter 3 hydraulic detention times are at 16～24h;
(2) after anaerobic biofilter 3, percolate enters the biochemical oxygen compatibility pool 4 of one-level and carries out the processing of one-level facultative anaerobic biochemical, by carbonization, assimilation, nitrification and denitrification effect, under double oxygen condition, complete the removal of organic degraded and ammonia nitrogen and total nitrogen; The biochemical oxygen compatibility pool 4 of described one-level is the inner bio-reactor that is filled with fixed cilium shape filler 5, fixed cilium shape filler 5 can effectively improve microorganism concn in biochemistry pool, the processing power of raising system, on fixed cilium shape filler 5, can there is synchronous nitration and denitrification effect, improve the nitrogen removal rate of percolate simultaneously; Biochemical oxygen compatibility pool 4 hydraulic detention times of described one-level are at 6～12h, and DO is controlled at 0.5～1.5mg/L;
(3) after one-level facultative anaerobic biochemical is processed, percolate enters anoxic pond 6, mainly carries out denitrification in anoxic pond 6, removes the organism in percolate; Described anoxic pond 6 hydraulic detention times are at 3～6h, and DO is controlled at below 0.5mg/L, and described anoxic pond 6 is supplemented the required carbon source of denitrification by adding methyl alcohol; Diving mixer 7 is set in anoxic pond 6, carries out denitrification processing to the nitrification liquid of returning and from the nitrification liquid in the biochemical oxygen compatibility pool 4 of one-level, thereby remove the total nitrogen in percolate;
(4) after anoxic pond 6, percolate enters secondary biochemical Aerobic Pond 11 and carries out secondary aerobic treatment, further removes the materials such as ammonia nitrogen in percolate, total nitrogen, total phosphorus by carbonization, nitrated and denitrification, reduces COD; Described secondary biochemical Aerobic Pond 11 is the inner bio-reactor that is filled with fixed cilium shape filler 5, and described secondary biochemical Aerobic Pond 11 hydraulic detention times are at 24～36h, and DO is controlled at 0.5～1.5mg/L;
(5), after secondary aerobic treatment, percolate passes through 13 water outlets of percolate rising pipe afterwards by the ceramic membrane cisterna 12 that ceramic film component is housed, and carries out follow-up advanced treatment operation; The DO of described ceramic membrane cisterna 12 is controlled at 3～4mg/L.
Described fixed cilium shape filler 5 and ceramic film component form effective combination of catalytic oxidation and MBR technique, greatly improve the microbial biomass in biochemistry pool, some organism of difficult biological degradation in percolate be can effectively remove, ammonia nitrogen and total nitrogen in percolate further removed.
The nitrate that described secondary biochemical Aerobic Pond 11 aerobic nitrification produce enters after described ceramic membrane cisterna 12, is back in described anoxic pond 6 by nitrification liquid reflux pump 10, carries out denitrification and removes total nitrogen.
After the utility model is processed, COD of waste leachate is at 300～500mg/L, and ammonia nitrogen is at 25mg/L, and total nitrogen is in 50mg/L left and right; The utlity model has good economy, this technological investment cost is at 2～30,000 yuan/t, and running cost is at 15～20 yuan/t; The utlity model has good treatment effect, alleviated the pressure of follow-up advanced treatment, reduced the running cost of advanced treatment; Combine the qualified discharge that can ensure percolate with absorbing process or reverse osmosis technology.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. the biochemical treatment apparatus of a percolate, it is characterized in that, comprise percolate water inlet water distributor (1), anaerobic biofilter (3), the biochemical oxygen compatibility pool of one-level (4), anoxic pond (6), secondary biochemical Aerobic Pond (11), pottery membrane cisterna (12) and percolate rising pipe (13), described anaerobic biofilter (3), the biochemical oxygen compatibility pool of one-level (4), anoxic pond (6), secondary biochemical Aerobic Pond (11) and ceramic membrane cisterna (12) are connected by pipeline successively, described percolate water inlet water distributor (1) extend into described anaerobic biofilter (3) inside, in described anaerobic biofilter (3), be filled with immobilization biological filler (2), on described immobilization biological filler (2), be attached with anaerobion, the biochemical oxygen compatibility pool of described one-level (4) and described secondary biochemical Aerobic Pond (11) inside are all filled with fixed cilium shape filler (5), on described fixed cilium shape filler (5), be attached with aerobic microbiological, in described anoxic pond (6), be provided with stirrer (7), in described ceramic membrane cisterna (12), be provided with ceramic film component, described percolate rising pipe (13) is communicated with the water outlet of described ceramic film component.
2. the biochemical treatment apparatus of percolate according to claim 1, it is characterized in that, also comprise aeration tube (8), the end of described aeration tube (8) extend into respectively the inside of the biochemical oxygen compatibility pool of described one-level (4), described secondary biochemical Aerobic Pond (11) and described ceramic membrane cisterna (12).
3. according to the biochemical treatment apparatus of percolate described in claim 1 or 2, it is characterized in that, described ceramic membrane cisterna (12) is also communicated with described anoxic pond (6) by nitrification liquid reflux line (9), and described nitrification liquid reflux line (9) is provided with nitrification liquid reflux pump (10).
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| CN201420380776.6U CN203960009U (en) | 2014-07-10 | 2014-07-10 | A kind of biochemical treatment apparatus of percolate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118970A (en) * | 2014-07-10 | 2014-10-29 | 北京博力扬环保科技有限公司 | A biochemical treatment method for landfill leachate and a device thereof |
| CN105541041A (en) * | 2016-01-25 | 2016-05-04 | 广西梧州市碧清源环保投资有限公司 | AOOC combined equipment for treating sewage and realizing renewable water and sewage treatment method |
| CN107176752A (en) * | 2017-06-02 | 2017-09-19 | 安徽润道生态环境工程科技有限公司 | A kind of " Chi Zhongchi " or " Tang Zhongtang " method for treating garbage percolation liquid |
| CN109775929A (en) * | 2019-02-18 | 2019-05-21 | 江西盖亚环保科技有限公司 | The processing method of landfill leachate based on GY-4 type filler matrix |
| CN115676972A (en) * | 2022-10-27 | 2023-02-03 | 四川大学 | Garbage leachate purification method |
| CN117263435A (en) * | 2023-10-09 | 2023-12-22 | 广东三川环境工程有限公司 | Biochemical device for landfill leachate |
-
2014
- 2014-07-10 CN CN201420380776.6U patent/CN203960009U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118970A (en) * | 2014-07-10 | 2014-10-29 | 北京博力扬环保科技有限公司 | A biochemical treatment method for landfill leachate and a device thereof |
| CN104118970B (en) * | 2014-07-10 | 2016-10-12 | 北京博力扬环保科技有限公司 | The biochemical processing method of a kind of percolate and device thereof |
| CN105541041A (en) * | 2016-01-25 | 2016-05-04 | 广西梧州市碧清源环保投资有限公司 | AOOC combined equipment for treating sewage and realizing renewable water and sewage treatment method |
| CN107176752A (en) * | 2017-06-02 | 2017-09-19 | 安徽润道生态环境工程科技有限公司 | A kind of " Chi Zhongchi " or " Tang Zhongtang " method for treating garbage percolation liquid |
| CN109775929A (en) * | 2019-02-18 | 2019-05-21 | 江西盖亚环保科技有限公司 | The processing method of landfill leachate based on GY-4 type filler matrix |
| CN115676972A (en) * | 2022-10-27 | 2023-02-03 | 四川大学 | Garbage leachate purification method |
| CN117263435A (en) * | 2023-10-09 | 2023-12-22 | 广东三川环境工程有限公司 | Biochemical device for landfill leachate |
| CN117263435B (en) * | 2023-10-09 | 2024-06-11 | 广东三川环境工程有限公司 | Biochemical device for landfill leachate |
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Granted publication date: 20141126 Effective date of abandoning: 20161012 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |