CN217921728U - TMF concentration and filtration system applied to sewage pretreatment - Google Patents
TMF concentration and filtration system applied to sewage pretreatment Download PDFInfo
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- CN217921728U CN217921728U CN202222276401.2U CN202222276401U CN217921728U CN 217921728 U CN217921728 U CN 217921728U CN 202222276401 U CN202222276401 U CN 202222276401U CN 217921728 U CN217921728 U CN 217921728U
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Abstract
The utility model provides a be applied to concentrated filtration system of TMF in sewage preliminary treatment, belong to sewage treatment technical field, this be applied to concentrated filtration system of TMF in sewage preliminary treatment includes the sewage collecting pit, sewage passes through the sewage pump in the sewage collecting pit and transmits to the reaction zone, be provided with medicine mechanism in the reaction zone, the reaction zone is connected with concentrated district, the mixed liquid of sewage and medicament in the concentrated district is connected to TMF filtration membrane through the filter pump, the clear water of output is connected to in the middlebox in the TMF filtration membrane, dense water backward flows to concentrated district in the TMF filtration membrane, TMF filtration membrane connection has backwash mechanism, this be applied to concentrated filtration system of TMF in sewage preliminary treatment adopts novel processing technology, and is with low costs, equipment is little, secondary pollution is few, and whole control adopts the automated control mode, technology operation mode and technology operation flow, manpower is saved, and be the novel utilization of TMF membrane, wide processing range, high efficiency.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to be applied to concentrated filtration system of TMF among sewage pretreatment.
Background
At present, a dosing reaction precipitation method is commonly used for sewage pretreatment, dilute acid/alkali solution is usually added into wastewater to adjust the pH value to 7-8, stirring is started simultaneously, pollutants in the wastewater react with the alkali solution to form hydroxide precipitate or flocculation precipitate, PAC and PAM are continuously added into liquid through a reaction tank for coagulation reaction and precipitation, the supernatant is further removed by a sand carbon filter tank to remove residual small suspended matters, organic substances and the like in the wastewater, and finally, the supernatant enters a UF system and an RO reverse osmosis system, and clear water reaches the standard and is recycled in a workshop.
Coagulating sedimentation tank mud is regularly arranged to the sludge thickening pond, opens pneumatic diaphragm pump and presses the sludge to the pressure filter and dewaters, presses full back, utilizes compressed air to weather sludge, and the artifical clearance bagging-off of mud cake after weathering is transported to the appointed place and is stacked to handing over by professional company that has the matter to be good at. The traditional process has high investment cost, high running cost, large occupied area and low automation degree.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a TMF concentration filtration system applied to sewage pretreatment, namely TMF membrane forced filtration is carried out after sewage is coagulated through a small amount of medicament, the energy consumption is low, the operation is simple, the automation degree is high, the investment and the operation cost are saved, and the system aims at solving the problems of large investment, large occupied area and high operation cost of the traditional process equipment for sewage pretreatment in the prior art; the use amount of the medicament is large, so that large secondary pollution is caused; the automation degree is low, the impurity purification rate is low, and the purification effect is poor; more devices are needed when the subsequent deep treatment is carried out; after the equipment is molded, the operation processing capacity cannot be adjusted; the replacement period of vulnerable materials such as sand filtration and carbon filtration filler is short, and the treatment is troublesome.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a be applied to concentrated filtration system of TMF in sewage preliminary treatment includes the sewage collecting pit, the sewage collecting pit is connected with the reaction district through the sewage pump, be provided with medicine mechanism in the reaction district, the reaction district is connected with concentrated district, be connected with TMF filtration membrane through the filter pump in the clear water part in the concentrated district, the clear water of output in the TMF filtration membrane is connected to the intermediate tank in, the concentrated water backward flow is to concentrated district in the TMF filtration membrane, TMF filtration membrane connection has backwash mechanism.
Preferably, a filter press is connected to the concentration area in a pumping mode, a filtrate return pipe is connected to the filter press and communicated with the sewage collection tank, and mud cakes in the filter press are treated through external equipment.
Preferably, the intermediate box is connected with a resin tower, the resin tower is connected with a reverse osmosis system, produced water in the reverse osmosis system is discharged through a produced water return pipe, and concentrated water in the reverse osmosis system is discharged to the evaporator through a concentrated water pipe.
Preferably, the evaporator is internally connected with an external concentrated solution disposal device through a concentrated solution external drainage pipe.
Preferably, the dosing mechanism comprises two reagent boxes and an acid-base box, and the two reagent boxes and the acid-base box are communicated with the reaction area through a dosing pump.
Preferably, the reaction zone consists of three reaction tanks, and the three reaction tanks are respectively used for adjusting the pH of the sewage, adsorbing the carbon powder and flocculating the polyaluminium chloride.
Preferably, the backwashing mechanism comprises a backwashing tank which is communicated with the TMF filter membrane through a backwashing pump.
Preferably, three reaction chambers, two reagent boxes, acid-base box and backwash box in the reaction zone are all connected with a mixing component, the mixing component comprises an air blower, and an air outlet of the air blower is respectively communicated with the bottoms of the three reaction chambers, the two reagent boxes, the acid-base box and the backwash box in the reaction zone through a plurality of pipelines.
A TMF concentration and filtration method applied to sewage pretreatment comprises the following steps:
s1: firstly, pumping sewage in a sewage collection tank into one reaction tank in a reaction area through a sewage pump, respectively adding medicines into three reaction tanks in the reaction area by using a connected medicine adding mechanism, and performing operations of pH adjustment, carbon powder adsorption and polyaluminium chloride flocculation on the sewage flowing through the three reaction tanks one by one;
s2: the dosing mechanism respectively feeds the medicaments in the medicament box and the acid-base box into the three reaction boxes through three dosing pumps, and improves the mixing and stirring effects of the medicaments in the two medicament boxes and the acid-base box by using wind power generated by a blower;
s3: after the reaction of the sewage, the sewage enters a concentration tank in a concentration area, and a filter pump can pump the mixed liquid of the sewage and the medicament in the concentration tank to a TMF filter membrane for filtering;
s4: after the sewage is filtered by the TMF filtering membrane in the step S3, clear water is produced into the middle box, concentrated water flows back to the concentration area, so that a filtering cycle is completed, the cycle is repeated, and the operation of the filtering pump can be stopped until the water yield is reduced or the cycle fluid is viscous;
s5: concentrated solution in a concentration box in the concentration zone can be pumped into a filter press through a pump for solid-liquid separation, mud cakes are packed and disposed outside, and filtrate flows back to a sewage collection tank through a filtrate return pipe to form circulation;
s6: after the clear liquid in the middle box is adsorbed by the resin tower, the clear liquid can be directly introduced into a reverse osmosis system, and the filtered water is discharged through a water production return pipe;
s7: the concentrated water adsorbed in the reverse osmosis system is guided into the evaporator through a concentrated water pipe and is discharged to external concentrated solution treatment equipment for treatment through a concentrated solution discharge pipe;
s8: TMF filtration membrane is after a period of time operation, and the water yield can descend, need carry out the membrane washing, through adding acid or alkali at the backwash box, through linkage electric valve experiment pipeline switching, the backwash pump is squeezed into the TMF filtration membrane with the backwash medicament to go out the water reflux to the backwash box, the circulation 30 minutes is a cleaning cycle.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the scheme, the whole TMF concentration and filtration system applied to sewage pretreatment adopts a novel treatment process, has low cost, small equipment and less secondary pollution, adopts an automatic control mode, a process operation mode and a process operation flow in the whole control, saves manpower, is novel utilization of the TMF membrane, has wide treatment range and high benefit, forcibly filters the sewage through the TMF membrane after coagulation of a small amount of medicament, has low energy consumption, simple operation and high automation degree, saves investment and operation cost,
2. in the scheme, TMF is adopted for absolute membrane filtration, so that the water outlet effect is good and stable; a reaction tank is adopted for direct circulation concentration, so that the medicine feeding is reduced, the equipment is small, and a gravity sedimentation tank or an inclined plate sedimentation tank is omitted; the full-automatic operation is realized, and the effluent quality is good; the use of a large amount of vulnerable materials is reduced; can replace an ultrafiltration system, and the produced water can directly enter a reverse osmosis system.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of the system structure of the present invention.
In the figure: 1. a sewage collection tank; 2. a sewage pump; 3. a reaction zone; 4. a kit; 5. an acid-base box; 6. a blower; 7. a concentration tank; 8. a filter pump; 9. a TMF filtration membrane; 10. an intermediate box; 11. a filter press; 12. a filtrate return pipe; 13. a resin tower; 14. a reverse osmosis system; 15. returning produced water; 16. a concentrated water pipe; 17. an evaporator; 18. the concentrated solution is discharged from the tube; 19. a backwash pump; 20. a dosing pump; 21. a backwash box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a be applied to concentrated filtration system of TMF in sewage preliminary treatment includes sewage collecting pit 1, sewage collecting pit 1 is connected with reaction zone 3 through sewage pump 2, be provided with medicine mechanism in the reaction zone 3, reaction zone 3 is connected with concentrated district, the mixed liquid of sewage and medicament in the concentrated district is connected to TMF filtration membrane 9 through filter pump 8, the clear water of output is connected to in the intermediate tank 10 in the TMF filtration membrane 9, the concentrated water backward flow is to concentrated district in the TMF filtration membrane 9, TMF filtration membrane 9 is connected with the backwash mechanism.
Specifically, a pressure filter 11 is connected in the concentration area in a pumping mode, a filtrate return pipe 12 is connected to the pressure filter 11, the filtrate return pipe 12 is communicated with the sewage collecting tank 1, and mud cakes in the pressure filter 11 are treated by external equipment.
Specifically, the intermediate box 10 is connected with a resin tower 13, the resin tower 13 is connected with a reverse osmosis system 14, produced water in the reverse osmosis system 14 is discharged through a produced water return pipe 15, and concentrated water in the reverse osmosis system 14 is discharged to an evaporator 17 through a concentrated water pipe 16.
Specifically, the evaporator 17 is connected to an external concentrate disposal device via a concentrate discharge pipe 18.
Specifically, add medicine mechanism includes two chemical tanks 4 and acid-base case 5, and two chemical tanks 4 and acid-base case 5 all communicate with reaction zone 3 through adding medicine pump 20.
Specifically, the reaction zone 3 is composed of three reaction tanks, and the three reaction tanks are respectively used for adjusting the pH of the sewage, adsorbing the carbon powder and flocculating the polyaluminium chloride.
Specifically, the backwashing mechanism comprises a backwashing tank 21, and the backwashing tank 21 is communicated with the TMF filter membrane 9 through a backwashing pump 19.
Specifically, three reaction box, two chemical tanks 4, acid-base case 5 and backwash case 21 all are connected with the compounding subassembly in the reaction zone 3, and the compounding subassembly comprises air-blower 6, and air exit of air-blower 6 communicates through the bottom of a plurality of pipelines respectively with three reaction box, two chemical tanks 4, acid-base case 5 and backwash case 21 in the reaction zone 3.
The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, sewage in the sewage collecting pool 1 is pumped into one reaction box in the reaction area 3 through the sewage pump 2, three reaction boxes in the reaction area 3 are respectively added with medicine by utilizing the connected medicine adding mechanism, and the operations of pH adjustment, carbon powder adsorption and polyaluminium chloride flocculation are carried out on the sewage circulating through the three reaction boxes one by one; the dosing mechanism respectively feeds the medicaments in the medicament boxes 4 and the acid-base boxes 5 into the three reaction boxes through the three dosing pumps 20, and improves the mixing and stirring effects of the medicaments in the two medicament boxes 4 and the acid-base boxes 5 by using wind power generated by the air blower 6; after the reaction of the sewage, the sewage enters a concentration tank 7 in a concentration area, and a filter pump 8 pumps a mixed solution of the sewage and the medicament in the concentration tank 7 to a TMF filter membrane 9 for filtering; after the sewage is filtered by the TMF filtering membrane 9 in the step S3, clear water is produced into the intermediate box 10, and concentrated water flows back to the reaction zone 3, so that a filtering cycle is completed, and the cycle is repeated, and the operation of the filtering pump 8 can be stopped until the water yield is reduced or the cycle liquid is viscous; concentrated solution in a concentration tank 7 in the concentration area can be pumped into a filter press 11 by a pump for solid-liquid separation, mud cakes are packed and disposed outside, and filtrate flows back into a sewage collection pool 1 through a filtrate return pipe 12 to form circulation; after the clear liquid in the middle box 10 is adsorbed by the resin tower 13, the clear liquid can be directly introduced into a reverse osmosis system 14, and the filtered water is discharged through a water production return pipe 15; the concentrated water adsorbed in the reverse osmosis system 14 is introduced into an evaporator 17 through a concentrated water pipe 16 and is discharged to an external concentrated liquid treatment device for treatment through a concentrated liquid external discharge pipe 18; after the TMF filtering membrane 9 is operated for a period of time, the water yield is reduced, membrane cleaning is needed, acid or alkali is added into the backwashing tank 21, the pipeline is switched through a linkage electric valve experiment, a backwashing agent is pumped into the TMF filtering membrane 9 by the backwashing pump 19, effluent flows back to the backwashing tank 21, and the circulation time is 30 minutes, namely, a cleaning period.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a TMF concentration filtration system for in sewage preliminary treatment which characterized in that: including sewage collecting pit (1), sewage collecting pit (1) is connected reaction zone (3) through sewage pump (2), be provided with medicine mechanism in reaction zone (3), reaction zone (3) are connected with concentrated district, the mixed liquid of sewage and medicament passes through filter pump (8) and is connected to TMF filtration membrane (9) in the concentrated district, the clear water of output is connected to in middle box (10) in TMF filtration membrane (9), dense water backward flow to concentrated district in TMF filtration membrane (9), TMF filtration membrane (9) are connected with backwash mechanism.
2. The TMF concentration and filtration system applied to sewage pretreatment of claim 1, wherein: the filter press is characterized in that a filter press (11) is connected to the concentration area in a pumping mode, a filtrate return pipe (12) is connected to the filter press (11), the filtrate return pipe (12) is communicated with the sewage collecting tank (1), and mud cakes in the filter press (11) are processed through external equipment.
3. The TMF concentration and filtration system applied to sewage pretreatment of claim 2, wherein: the middle box (10) is connected with a resin tower (13), the resin tower (13) is connected with a reverse osmosis system (14), produced water in the reverse osmosis system (14) is discharged through a produced water return pipe (15), and concentrated water in the reverse osmosis system (14) is discharged into an evaporator (17) through a concentrated water pipe (16).
4. The TMF concentration and filtration system applied to sewage pretreatment of claim 3, wherein: the evaporator (17) is internally connected with external concentrated solution treatment equipment through a concentrated solution external discharge pipe (18).
5. The TMF concentration and filtration system applied to sewage pretreatment of claim 4, wherein: the medicine adding mechanism comprises two medicine boxes (4) and an acid-base box (5), and the two medicine boxes (4) and the acid-base box (5) are communicated with the reaction area (3) through a medicine adding pump (20).
6. The TMF concentration and filtration system applied to sewage pretreatment of claim 5, wherein: the reaction zone (3) consists of three reaction tanks, and the three reaction tanks are respectively used for adjusting the pH value of sewage, adsorbing carbon powder and flocculating polyaluminium chloride.
7. The TMF concentration and filtration system applied to sewage pretreatment of claim 6, wherein: the backwashing mechanism comprises a backwashing tank (21), and the backwashing tank (21) is communicated with the TMF filtering membrane (9) through a backwashing pump (19).
8. The TMF concentration and filtration system applied to sewage pretreatment of claim 7, wherein: three reaction tanks, two chemical tanks (4), acid-base tank (5) and backwash tank (21) in reaction zone (3) all are connected with the compounding subassembly, the compounding subassembly comprises air-blower (6), the air exit of air-blower (6) through a plurality of pipelines respectively with the bottom intercommunication of three reaction tanks, two chemical tanks (4), acid-base tank (5) and backwash tank (21) in reaction zone (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276401.2U CN217921728U (en) | 2022-08-29 | 2022-08-29 | TMF concentration and filtration system applied to sewage pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276401.2U CN217921728U (en) | 2022-08-29 | 2022-08-29 | TMF concentration and filtration system applied to sewage pretreatment |
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| CN217921728U true CN217921728U (en) | 2022-11-29 |
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| CN202222276401.2U Active CN217921728U (en) | 2022-08-29 | 2022-08-29 | TMF concentration and filtration system applied to sewage pretreatment |
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- 2022-08-29 CN CN202222276401.2U patent/CN217921728U/en active Active
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