CN203833777U - Treatment device for ozone oxidation treatment leachate nanofiltration concentrated solution - Google Patents
Treatment device for ozone oxidation treatment leachate nanofiltration concentrated solution Download PDFInfo
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- CN203833777U CN203833777U CN201420278660.1U CN201420278660U CN203833777U CN 203833777 U CN203833777 U CN 203833777U CN 201420278660 U CN201420278660 U CN 201420278660U CN 203833777 U CN203833777 U CN 203833777U
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Abstract
The utility model relates to a treatment device for ozone oxidation treatment leachate nanofiltration concentrated solution. A coagulation sedimentation mechanism comprises a stirring tank, a sedimentation tank and a clear liquid collecting tank, wherein the stirring tank is provided with a stirrer. An ozone oxidation mechanism comprises an ozone generator, an ozone reaction towel, a lifting pump and a circulating pump. A liquid outlet of the clear liquid collecting tank is communicated with a liquid inlet arranged at the top of the ozone reaction towel through the lifting pump and a lifting pipe, a plurality of spraying pipes arranged in the ozone reaction towel are connected with the liquid inlet of the ozone reaction towel, the ozone generator is connected with a plurality of air spraying heads arranged on the lower portion of the ozone reaction towel through an air pipe, and a three-way valve is installed on a liquid outlet pipe at the bottom of the ozone reaction towel. A membrane biological reaction mechanism comprises a denitrification tank, a nitrification tank and an ultrafiltration membrane module which are connected, a sewage draining port of the ultrafiltration membrane module is communicated with the denitrification tank, and a water outlet is connected with a drain pipe. The treatment device is simple in process route, reduces treatment cost and is free of secondary pollution.
Description
Technical field
The utility model relates to a kind for the treatment of unit of ozone Oxidation Treatment percolate nanofiltration concentrated solution, belongs to percolate nanofiltration concentrated solution processing technology field.
Background technology
The percolate that domestic waste produces in landfill process has that organic contamination substrate concentration is high, ammonia nitrogen concentration is high, concentration of heavy metal ion high, and intractability is very large.Processing for percolate both at home and abroad has the methods such as traditional biological process, membrane sepn and combination thereof, and wherein film biochemical reactor and disc tube reverse osmosis (dt-ro) are the treatment process of current main flow.For reaching special limit value emission request in GB16889-2008 new standard, in percolate treating processes, conventionally adopt the technique of " biochemistry+film ", in membrane sepn, nanofiltration or reverse osmosis, as advanced treatment process unit, produce the nanofiltration concentrated solution that accounts for treatment scale 15%～25% when its clear liquid is up to standard.But the organic pollutant in nanofiltration concentrated solution is mainly the form with hardly degraded organic substance to be existed, and take fulvo acid class material as main, its molecular weight is substantially below 20000 atomic mass units, take again molecular weight at the material of 1000-3000 atomic mass unit as main, conventionally water quality is as follows: organic cod is 6000-8000mg/L, BOD is 0-50mg/L, TN is 500-750mg/L, NH4-N is 0-5mg/L, pH is 6-8, specific conductivity is 20-40ms/cm, total hardness TDS is 1000-1500mg/L, exist the nanofiltration concentrated solution of macromolecular chain to compare with percolate stoste, there is biodegradability poorer, salinity is higher, process more difficult feature.
The at present both at home and abroad processing for percolate concentrated solution mainly contains back equalizing tank, recharges landfill, coagulation sinks the methods such as method and resin absorption combination, charcoal absorption, evaporation dry method and burning.Percolate concentrated solution returns after equalizing tank, along with the increase of concentrated solution, causes the film pressure for the treatment of system to increase, and causes treatment system Disposal quality to decline, and even can make treatment system collapse.And it is fewer to recharge method landfill requirement leachate generation, can only be for small-sized refuse treatment place, but recharge landfill because salt accumulates, the rising of specific conductivity, causes the deterioration for the treatment of system, therefore uses and has limitation.And that the heavy method of coagulation and resin absorption combination, charcoal absorption etc. need to add pharmaceutical quantities is large, the sludge quantity of generation is many, and processing costs is very expensive.And evaporation dry method and burning cannot all can exist secondary pollution, locate understanding effect bad.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of operational path, reduces processing cost, without the treatment unit of the ozone Oxidation Treatment percolate nanofiltration concentrated solution of the dirty beam of secondary.
The utility model is that the technical scheme achieving the above object is: a kind for the treatment of unit of ozone Oxidation Treatment percolate nanofiltration concentrated solution, it is characterized in that: comprise coagulating sedimentation mechanism, ozone oxidation mechanism and membrane biological reaction mechanism, described coagulating sedimentation mechanism comprises the steel basin that is provided with agitator, settling tank and clear liquid receiving tank, steel basin top is provided with the fluid inlet for percolate nanofiltration concentrated solution is introduced and adds the dosing mouth of flocculation agent, steel basin communicates with the settling banker in settling tank by pipeline, clear liquid storehouse in settling tank communicates with clear liquid receiving tank by pipeline, described ozone oxidation mechanism comprises ozonizer, ozone reaction tower and lift pump and recycle pump, the liquid outlet of clear liquid receiving tank communicates with the fluid inlet that is arranged on ozone reaction top of tower through lift pump and riser tube, being arranged on a plurality of showers in ozone reaction tower is connected and communicates with its fluid inlet, ozonizer by tracheae be arranged on ozone reaction tower in a plurality of jet thrusts of bottom be connected and communicate, the drain pipe of ozone reaction tower bottom is provided with T-valve, one end of T-valve communicates with fluid inlet in ozone reaction tower by recycle pump and circulation tube, the other end is connected and communicates with the water-in of middle tank by pipeline, described membrane biological reaction mechanism comprises denitrification tank, nitrating pot and hyperfiltration membrane assembly, the water outlet of middle tank communicates with denitrification tank water-in through intake pump, the water outlet of denitrification tank connects the water-in of nitrating pot, the air outlet of gas blower is connected and communicates with the aerating pipe that is arranged on nitrating pot bottom, the water outlet of nitrating pot communicates with the water-in of hyperfiltration membrane assembly through transferpump, the sewage draining exit of hyperfiltration membrane assembly through blow-off pipe communicate with denitrification tank, water port is connected with water shoot.
The utility model adopts coagulating sedimentation mechanism, the processing to percolate nanofiltration concentrated solution of ozone oxidation mechanism and membrane biological reaction mechanism, percolate nanofiltration concentrated solution and coagulating agent are uniformly mixed in steel basin and there is coagulating after be added to settling tank and precipitate, by coagulating sedimentation mechanism, percolate nanofiltration concentrated solution is carried out to coagulating sedimentation processing, to the organic cod clearance in percolate nanofiltration concentrated solution at 50%-60, so can lower the load of pollutent, alleviate the difficulty of ozone Oxidation Treatment, effectively improve the utilization ratio of ozone, reduce ozone process processing cost.The utility model waste water first carries out ozone Oxidation Treatment, carry out again membrane biological reaction processing, at ozone reaction tower, waste water is added from its top, and sending out of ozone device is connected with the escape pipe of ozone reaction tower bottom, waste water is fully contacted with ozone gas adverse current, and on the rising pipe of ozone reaction tower bottom, T-valve is installed, can make waste water circulate in ozone reaction tower, to improve the ozone concn that is dissolved in waste water, be conducive to the generation of hydroxyl radical free radical in waste water, it by the part difficult degradation larger molecular organics oxidized " key point " in nanofiltration concentrated solution, is the small organic molecule of easily degrading, strengthen organic biodegradability in waste water, also facilitate the waste water after oxidation is drained in middle tank.The biochemical treatment of membrane biological reaction mechanism's employing preposition, nitrated postposition of denitrification of the present utility model and hyperfiltration membrane assembly, organic pollutant in effective degrading waste water, simultaneously the waste water after ozone Oxidation Treatment also reduces in nitrating pot for the required oxygen amount of degradable organic pollutant, and the organic cod clearance in percolate nanofiltration concentrated solution is reached more than 90%.Operational path of the present utility model is simple, processing costs cost performance is high, and material that can decomposing organism difficult degradation by ozone oxidation, owing to becoming oxygen after ozone decomposed, environment is not had to secondary pollution, be conducive to eliminate secondary pollution and realize minimizing with the combination of biochemical process.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of the treatment unit of the utility model ozone Oxidation Treatment percolate nanofiltration concentrated solution.
Wherein: 1-steel basin, 2-settling tank, 3-clear liquid receiving tank, 4-lift pump, 5-recycle pump, 6-ozone reaction tower, 7-T-valve, 8-middle tank, 9-intake pump, 10-denitrification tank, 11-nitrating pot, 12-transferpump, 13-coagulating agent groove, 14-riser tube, 15-circulation tube, 16-ozonizer, 17-blow-off pipe, 18-gas blower, 19-hyperfiltration membrane assembly.
Embodiment
As shown in Figure 1, the treatment unit of the utility model ozone Oxidation Treatment percolate nanofiltration concentrated solution, comprises coagulating sedimentation mechanism, ozone oxidation mechanism and membrane biological reaction mechanism.
As shown in Figure 1, coagulating sedimentation of the present utility model mechanism comprises the steel basin 1 that is provided with agitator, settling tank 2 and clear liquid receiving tank 3, steel basin 1 top is provided with the fluid inlet for percolate nanofiltration concentrated solution is introduced and adds the dosing mouth of flocculation agent, steel basin 1 communicates with the settling banker in settling tank 2 by pipeline, clear liquid storehouse in settling tank 2 communicates with clear liquid receiving tank 3 by pipeline, the utlity model has coagulating agent groove 13, coagulating agent groove 13 is connected and communicates with the dosing mouth of steel basin 1 by pipeline, the coagulating agent of iron trichloride and polyacrylamide can be added in steel basin 1, or iron trichloride and polyacrylamide after dissolving, coagulating agent groove 13 are added in steel basin 1, by agitator, iron trichloride and polyacrylamide are fully mixed with percolate nanofiltration concentrated solution steel basin 1 is interior, there is coagulating in the reaction zone of steel basin 1 after, be added to settling tank 2, the supernatant liquor of settling tank 2 is flowed in clear liquid receiving tank 3, the utility model settling tank 2 bottoms are provided with mud relief outlet, mud relief outlet place is provided with check valve, by controlling check valve, the mud in settling tank 2 is regularly discharged, after coagulating sedimentation is processed, the clearance of organic cod in percolate nanofiltration concentrated solution can be reached to 50%-60.
As shown in Figure 1, ozone oxidation of the present utility model mechanism comprises ozonizer 16, ozone reaction tower 6 and lift pump 4 and recycle pump 5, the liquid outlet of clear liquid receiving tank 3 communicates with the fluid inlet that is arranged on ozone reaction tower 6 tops through lift pump 4 and riser tube 14, being arranged on the interior a plurality of showers of ozone reaction tower 6 is connected and communicates with its fluid inlet, ozonizer 16 is connected and communicates with a plurality of jet thrusts that are arranged on ozone reaction tower 6 interior bottoms by tracheae, the drain pipe of ozone reaction tower 6 bottoms is provided with T-valve 7, one end of T-valve 7 communicates with the interior fluid inlet of ozone reaction tower 6 by recycle pump 5 and circulation tube 15, the other end is connected and communicates with the water-in of middle tank 8 by pipeline, supernatant liquor in clear liquid receiving tank 3 is added to the top of ozone reaction tower 6 by lift pump 4, the ozone gas that ozonizer 16 produces is delivered to ozone reaction tower 6 bottoms, supernatant liquor in ozone reaction tower 6 contacts with ozone gas and carries out oxidizing reaction, flow into ozone reaction tower 6 bottom supernatant liquors contacts with ozone gas in reflux pump enters ozone reaction tower 6 with circulation tube 15 again, supernatant liquor can fully be contacted with ozone gas and improve the ozone concn that is dissolved in supernatant liquor, the structure of larger molecular organics in supernatant liquor is made it to change into small organic molecule, by the part fracture of refractory organic ring molecule or long chain molecule, strengthen organic biodegradability in supernatant liquor, the interior storage of tank 8 in the middle of waste water after oxidation is expelled to.
As shown in Figure 1, the utility model membrane biological reaction mechanism comprises denitrification tank 10, nitrating pot 11 and hyperfiltration membrane assembly 19, the water outlet of middle tank 8 communicates with denitrification tank 10 water-ins through intake pump 9, by intake pump 9, the waste water in middle tank 8 is delivered in denitrification tank 10, the interior continuous plug-flow aeration of denitrification tank 10, carries out anti-nitration reaction and organic pollutant in degrading waste water to waste water.The water outlet of the utility model denitrification tank 10 connects the water-in of nitrating pot 11, the air outlet of gas blower 18 is connected and communicates with the aerating pipe that is arranged on nitrating pot 11 bottoms, through blast aeration, the organic pollutant of the waste water in nitrating pot 11 is degraded, the water outlet of nitrating pot 11 communicates with the water-in of hyperfiltration membrane assembly 19 through transferpump 12, the sewage draining exit of hyperfiltration membrane assembly 19 communicates through blow-off pipe 17 also denitrification tank 10, water port is connected with water shoot, waste water after nitration reaction is carried out to solid-liquid separation through transferpump 12 by being delivered to hyperfiltration membrane assembly 19 after lifting, ultrafiltration dope after processing is back in denitrification tank 10, realize activity sludge reflux, kept the stability of active sludge in biochemical system, clear liquid water outlet discharge.
Claims (3)
1. the treatment unit of an ozone Oxidation Treatment percolate nanofiltration concentrated solution, it is characterized in that: comprise coagulating sedimentation mechanism, ozone oxidation mechanism and membrane biological reaction mechanism, described coagulating sedimentation mechanism comprises steel basin (1), settling tank (2) and the clear liquid receiving tank (3) that is provided with agitator, steel basin (1) top is provided with the fluid inlet for percolate nanofiltration concentrated solution is introduced and adds the dosing mouth of flocculation agent, steel basin (1) communicates with the settling banker in settling tank (2) by pipeline, and the clear liquid storehouse in settling tank (2) communicates with clear liquid receiving tank (3) by pipeline, described ozone oxidation mechanism comprises ozonizer (16), ozone reaction tower (6) and lift pump (4) and recycle pump (5), the liquid outlet of clear liquid receiving tank (3) communicates with the fluid inlet that is arranged on ozone reaction tower (6) top through lift pump (4) and riser tube (14), being arranged on a plurality of showers in ozone reaction tower (6) is connected and communicates with its fluid inlet, ozonizer (16) is connected and communicates with a plurality of jet thrusts that are arranged on the interior bottom of ozone reaction tower (6) by tracheae, the drain pipe of ozone reaction tower (6) bottom is provided with T-valve (7), one end of T-valve (7) communicates with the interior fluid inlet of ozone reaction tower (6) by recycle pump (5) and circulation tube (15), the other end is connected and communicates with the water-in of middle tank (8) by pipeline, described membrane biological reaction mechanism comprises denitrification tank (10), nitrating pot (11) and hyperfiltration membrane assembly (19), the water outlet of middle tank (8) communicates with denitrification tank (10) water-in through intake pump (9), the water outlet of denitrification tank (10) connects the water-in of nitrating pot (11), the air outlet of gas blower (18) is connected and communicates with the aerating pipe that is arranged on nitrating pot (11) bottom, the water outlet of nitrating pot (11) communicates with the water-in of hyperfiltration membrane assembly (19) through transferpump (12), the sewage draining exit of hyperfiltration membrane assembly (19) communicates with denitrification tank (10) through blow-off pipe (17), water port is connected with water shoot.
2. the treatment unit of ozone Oxidation Treatment percolate nanofiltration concentrated solution according to claim 1, is characterized in that: also have coagulating agent groove (13), coagulating agent groove (13) is connected and communicates with the dosing mouth of steel basin (1) by pipeline.
3. the treatment unit of ozone Oxidation Treatment percolate nanofiltration concentrated solution according to claim 1, is characterized in that: described settling tank (2) bottom is provided with mud relief outlet, and mud relief outlet place is provided with check valve.
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| CN201420278660.1U CN203833777U (en) | 2014-05-28 | 2014-05-28 | Treatment device for ozone oxidation treatment leachate nanofiltration concentrated solution |
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| CN201420278660.1U CN203833777U (en) | 2014-05-28 | 2014-05-28 | Treatment device for ozone oxidation treatment leachate nanofiltration concentrated solution |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104829068A (en) * | 2015-05-29 | 2015-08-12 | 重庆大学 | Treatment method of high-concentration recalcitrant wastewater |
| CN105645662A (en) * | 2014-11-14 | 2016-06-08 | 中国石油天然气股份有限公司 | A device and a method for removing degradation-resistant organic matters in a membrane filtration concentrate liquid |
| CN105693029A (en) * | 2016-03-21 | 2016-06-22 | 珠海市海宜环境投资有限公司 | Landfill leachate treatment process |
| CN109534560A (en) * | 2019-01-31 | 2019-03-29 | 艾西姆(辽宁)环境技术有限公司 | A kind of landfill leachate nanofiltration concentrate pretreatment process method |
| CN109650599A (en) * | 2019-01-31 | 2019-04-19 | 艾西姆(辽宁)环境技术有限公司 | A kind of non-embrane method landfill leachate nanofiltration concentrate processing method |
| CN110743631A (en) * | 2019-09-29 | 2020-02-04 | 华电国际电力股份有限公司技术服务分公司 | Solid waste leachate collection and experiment simulation system |
-
2014
- 2014-05-28 CN CN201420278660.1U patent/CN203833777U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645662A (en) * | 2014-11-14 | 2016-06-08 | 中国石油天然气股份有限公司 | A device and a method for removing degradation-resistant organic matters in a membrane filtration concentrate liquid |
| CN104829068A (en) * | 2015-05-29 | 2015-08-12 | 重庆大学 | Treatment method of high-concentration recalcitrant wastewater |
| CN105693029A (en) * | 2016-03-21 | 2016-06-22 | 珠海市海宜环境投资有限公司 | Landfill leachate treatment process |
| CN109534560A (en) * | 2019-01-31 | 2019-03-29 | 艾西姆(辽宁)环境技术有限公司 | A kind of landfill leachate nanofiltration concentrate pretreatment process method |
| CN109650599A (en) * | 2019-01-31 | 2019-04-19 | 艾西姆(辽宁)环境技术有限公司 | A kind of non-embrane method landfill leachate nanofiltration concentrate processing method |
| CN110743631A (en) * | 2019-09-29 | 2020-02-04 | 华电国际电力股份有限公司技术服务分公司 | Solid waste leachate collection and experiment simulation system |
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| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: 213025 No. 156 Hanjiang Road, Changzhou City, Jiangsu Province Patentee after: Welly Environmental Technology Group Co., Ltd. Address before: 213125 Hanjiang Road, Xinbei District, Jiangsu, Changzhou, China, No. 156 Patentee before: Jiangsu Welle Environmental Protection Technology Co., Ltd. |
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