CN204162582U - Townm refuse turnover station percolation liquid treating system - Google Patents
Townm refuse turnover station percolation liquid treating system Download PDFInfo
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- CN204162582U CN204162582U CN201420661510.9U CN201420661510U CN204162582U CN 204162582 U CN204162582 U CN 204162582U CN 201420661510 U CN201420661510 U CN 201420661510U CN 204162582 U CN204162582 U CN 204162582U
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Abstract
A kind of townm refuse turnover station percolation liquid treating system, is characterized in that: comprise micro-nano bubble generator; Described micro-nano bubble generator is connected with advection air flotation pool by pipeline; The middle part of advection air flotation pool is provided with water shoot, and water shoot is connected with MBR membrane bioreactor; Be provided with active sludge in described MBR membrane bioreactor, the inside of MBR membrane bioreactor is provided with hollow-fibre membrane, is provided with aeration head below MBR membrane bioreactor; One end of rising pipe is arranged on the inside of MBR membrane bioreactor through hollow-fibre membrane, the other end connects water-freeing arrangement.The usefulness of this invention is, percolate is through micro-nano bubble generator, form micro-nano bubble therein, fine suspension in water is made to stick on air filled cavity, the water surface is floated to bubble, form scum silica frost, the synergy synergy between significantly reducing because of percolate complex component and antagonistic action and the toxicity that causes, system water outlet biodegradability strengthens.
Description
Technical field
The invention belongs to field of environment engineering technology, relate to a kind of Sewage treatment systems, be specifically related to a kind of townm refuse turnover station percolation liquid treating system.
Background technology
Along with socioeconomic development, the increase of city numbers, urban population and the raising of living standards of the people, the output of domestic waste increases sharply, and domestic waste is polluted becomes a very severe society, environmental problem.City domestic refuse percolation liquid divides landfill, burning electricity generation and transhipment station three kinds, wherein the highest with transhipment station percolate concentration, because only have 1 ~ 2 day from collect-concentrate-transporting the residence time, anaerobism-fermentative degradation shortest time.The garbage transfer station of current majority does not take treatment measures to percolate, majority is all directly drain into sewage network, even directly enters Storm Sewer Network, relatively large on the impact of environment, produce concentration very large, certain impact is produced to municipal sewage plant.In percolate, the contamination index of major control is: COD(BOD) organism, NH3-N ammonia nitrogen, TN total nitrogen, SS suspended substance, pH potential of hydrogen etc.Also to consider heavy metal ion and phosphorus, can the local surface water and groundwater of severe contamination.Percolate metal content is high, containing 10 many kinds of metal ions in percolate, because domestic rubbish passes through strict classification and screening unlike some city external, so concentration of metal ions is variant in domestic and international percolate.Wherein concentration of iron can up to 2050mg/L, plumbous concentration can reach 12.3 mg/L, zinc concentration can reach 130mg/L, the concentration of calcium can reach 4300 mg/L [3], and the ammonia-nitrogen content of percolate is also very high, and high-concentration ammonia-nitrogen is one of important water quality characteristic of city garbage percolate, along with garbage loading embeading year number and increasing, can up to 1700mg/L, the nitrogen in percolate exists mainly with ammonia nitrogen form, accounts for 70% ~ 80% of TN.In sum, although percolate biodegradability is very good, its complicated, not only concentration is high, also has many bio-refractory organism, depends merely on conventional biochemical-physical chemistry method and can not process national grade one discharge standard.Just because of this, many places can not qualified discharge and become a thorny technical problem.
Summary of the invention
The present invention is directed to above problem, provide a kind of easy townm refuse turnover station percolation liquid treating system.
The present invention is achieved by the following technical solutions: a kind of townm refuse turnover station percolation liquid treating system, is characterized in that: comprise micro-nano bubble generator; Described micro-nano bubble generator is connected with advection air flotation pool by pipeline; The middle part of advection air flotation pool is provided with water shoot, and water shoot is connected with MBR membrane bioreactor; Be provided with active sludge in described MBR membrane bioreactor, the below of active sludge is hollow-fibre membrane; One end of rising pipe is arranged on the inside of MBR membrane bioreactor through hollow-fibre membrane, the other end connects water-freeing arrangement.Dividing plate is provided with in described advection air flotation pool; The height of described dividing plate is not less than 2/3rds of advection air flotation pool height.
The usefulness of this invention is, percolate, through micro-nano bubble generator, forms micro-nano bubble therein, makes fine suspension in water stick on air filled cavity, floats to the water surface with bubble, forms scum silica frost.In the middle of air flotation pool, water enters MBR membrane bioreactor, reaches the effect reducing organic content.The present invention can carry out comprehensive treating process to percolate, and treatment effect is good.The main water-quality guideline of water outlet reaches the related request in GB16889-2008 " consumer waste filling and embedding Environmental capacity standard ".Treatment system of the present invention uses physico-chemical process treating refuse percolate, little by water quality, water yield variable effect, and stable effluent quality, reduce the toughness of percolate, obtain significant progress in recent years.Synergy synergy between significantly reducing because of percolate complex component and antagonistic action and the toxicity that causes, system water outlet biodegradability strengthens.The suitable large-scale development for the treatment of system of the present invention uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1 micro-nano bubble generator, 2 pipelines, 3 advection air flotation pools, 4 water shoots, 5MBR membrane bioreactor, 6 aeration heads, 7 hollow-fibre membranes, 8MBR membrane bioreactor rising pipe, 9 water suction pumps, 10 dividing plates.
Embodiment
A kind of townm refuse turnover station percolation liquid treating system, is characterized in that: comprise micro-nano bubble generator 1; Described micro-nano bubble generator 1 is connected with advection air flotation pool 3 by pipeline 2; One middle side part of advection air flotation pool 3 is provided with water shoot 4, and water shoot 4 is connected with MBR membrane bioreactor 5; Active sludge is provided with in described MBR membrane bioreactor 5; The inside of described MBR membrane bioreactor 5 is provided with hollow-fibre membrane 7; The below of described MBR membrane bioreactor 5 is provided with aeration head 6; One end of MBR membrane bioreactor rising pipe 8 is arranged on the inside of MBR membrane bioreactor 5 through hollow-fibre membrane, the other end connects water suction pump 9.Dividing plate 10 is provided with in described advection air flotation pool 3; The height of described dividing plate 10 is not less than 2/3rds of advection air flotation pool 3 height.
Principle of work of the present invention is: percolate is through micro-nano bubble generator 1, form micro-nano bubble therein, and make it discharge bottom advection air flotation pool 3, make fine suspension in water stick on air filled cavity, float to the water surface with bubble, form scum silica frost.The middle water of advection air flotation pool 3 enters MBR membrane bioreactor 5, first the biodegradable organic pollutant of water quality is removed by active sludge, then adopt hollow-fibre membrane 7 that the water after purification and active sludge are carried out solid-liquid separation, thus reach the effect reducing organic content.
The principle of work of the MBR membrane bioreactor in the present invention is, hollow-fibre membrane 7 is connected by MBR film frame, and raw waste water enters film inside through hollow-fibre membrane 7, due to the selective penetrated property of tunica fibrosa, makes raw waste water reach the effect of mud-water separation.Tunica fibrosa inner hollow and film frame internal pipeline are come round, and by vacuum primingpump by water extraction in film out, thus reach the object purified water.Hollow-fibre membrane 7 can be determined according to the water yield, and the tunica fibrosa number of plies of different film manufacturer production is all not quite identical, and in the present embodiment, hollow-fibre membrane 7 is double-deck.
Treatment facility of the present invention is made up of oxidation pond and filtering basin and nanometer aeration equipment, its principle water is mixed with gas height mix, ultrasonic cavitation disperse discharges highdensity, uniform submicron bubble, form the gas liquid mixture of " oyster white ", this mixed gas is then the active oxygen species group with higher-energy, oxygen is after ionization, to tell that eddying motion produces cutting action, and along with high speed eddying motion produce High Pressure, ionization oxygen machining and be compressed into small bubble, and inject in water with high linear velocity, initial motion speed is formed higher in water, there is higher mobile efficiency and the active oxygen species group of mobile efficiency---high energy oxygen.Bubble median size 200nm-4um, bubble inclusion rate 84%-90%, bubble average lift velocity 4mm/s-8mm/s that this device produces.
The bubble produced due to the more common aerator of micro-nano bubble generator is much smaller, therefore increase with the contact area of water, and under the effect of energy, high energy oxygen can be dissolved in rapidly in water becomes high density dissolved oxygen, and therefore the utilization ratio of oxygen significantly improves.This device volume is little.And the generation due to bubble is generated the effect of mixing wastewater with air liquid by ultrasonic wave completely, and therefore energy consumption is little, noise is low.
The above is only the preferred embodiment of the present invention, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made, also above-mentioned technical characteristic can be combined by rights; These improve retouching, change or combination, or the design of invention and technical scheme are directly applied to other occasion without improving, and all should be considered as protection scope of the present invention.
Claims (2)
1. a townm refuse turnover station percolation liquid treating system, is characterized in that: comprise micro-nano bubble generator (1); Described micro-nano bubble generator (1) is connected with advection air flotation pool (3) by pipeline (2); The middle part of advection air flotation pool (3) is provided with water shoot (4), and water shoot (4) is connected with MBR membrane bioreactor (5); Active sludge is provided with in described MBR membrane bioreactor (5); The inside of described MBR membrane bioreactor (5) is provided with hollow-fibre membrane (7); The below of described MBR membrane bioreactor (5) is provided with aeration head (6); One end of MBR membrane bioreactor rising pipe (8) is arranged on the inside of MBR membrane bioreactor (5) through hollow-fibre membrane (6), the other end connects water-freeing arrangement (9).
2. a kind of townm refuse turnover station according to claim 1 percolation liquid treating system, is characterized in that: be provided with dividing plate (10) in described advection air flotation pool (3); The height of described dividing plate (10) is not less than 2/3rds of advection air flotation pool (3) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661510.9U CN204162582U (en) | 2014-11-07 | 2014-11-07 | Townm refuse turnover station percolation liquid treating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661510.9U CN204162582U (en) | 2014-11-07 | 2014-11-07 | Townm refuse turnover station percolation liquid treating system |
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| CN204162582U true CN204162582U (en) | 2015-02-18 |
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| CN201420661510.9U Expired - Fee Related CN204162582U (en) | 2014-11-07 | 2014-11-07 | Townm refuse turnover station percolation liquid treating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355494A (en) * | 2014-11-07 | 2015-02-18 | 青岛力科环保工程有限公司 | Leachate treatment system for town refuse circulation station |
| CN104828998A (en) * | 2015-05-25 | 2015-08-12 | 安徽天健环保股份有限公司 | Split combined intelligent oil-water separator of restaurant waste water and running method thereof |
-
2014
- 2014-11-07 CN CN201420661510.9U patent/CN204162582U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355494A (en) * | 2014-11-07 | 2015-02-18 | 青岛力科环保工程有限公司 | Leachate treatment system for town refuse circulation station |
| CN104828998A (en) * | 2015-05-25 | 2015-08-12 | 安徽天健环保股份有限公司 | Split combined intelligent oil-water separator of restaurant waste water and running method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20151107 |
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| EXPY | Termination of patent right or utility model |