CN103723795B - Concentrating and recovering device for copolymerization resin waste water and recovery method thereof - Google Patents
Concentrating and recovering device for copolymerization resin waste water and recovery method thereof Download PDFInfo
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- CN103723795B CN103723795B CN201310647678.4A CN201310647678A CN103723795B CN 103723795 B CN103723795 B CN 103723795B CN 201310647678 A CN201310647678 A CN 201310647678A CN 103723795 B CN103723795 B CN 103723795B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title abstract description 12
- 229920005989 resin Polymers 0.000 title abstract description 4
- 239000011347 resin Substances 0.000 title abstract description 4
- 238000007334 copolymerization reaction Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000005406 washing Methods 0.000 claims abstract description 26
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 229920006026 co-polymeric resin Polymers 0.000 claims description 20
- 239000012466 permeate Substances 0.000 claims description 15
- 235000012489 doughnuts Nutrition 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005273 aeration Methods 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000012510 hollow fiber Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 14
- 239000002245 particle Substances 0.000 description 8
- 239000012452 mother liquor Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a concentrating and recovering device for copolymerization resin waste water and a recovery method thereof, and belongs to the technical field of recovery. The device comprises a film shell, wherein a permeation cavity is formed in the film shell; a plurality of hollow tube-shaped hollow fibers are arranged inside the permeation cavity; an A interface is formed in the bottom end of the film shell; a D interface is formed in the top end of the film shell; a C interface is formed in the upper end of the side face of the film shell; a B interface is formed in the lower end of the side face of the film shell. The operation manner of the device is the continuation of operation, back washing and front washing; the operation manner of gas-water mixing of 'high cross flow full-time aeration, polluting while washing' is adopted; the operation is stable, the possibility of blockage caused by dirt is low, and the technological process is short; after the waste water enters the device, separation and reusing are conducted simultaneously, and 95% of the waste water is recycled, so that the manufacturing cost is saved, and zero emission is achieved; therefore, green manufacturing is really achieved; the device is less, the size is small, and the occupied area is small; the operation is full-automatic, the power consumption is saved, the total operation cost is low, and the treatment cost is low.
Description
Technical field
The present invention relates to a kind of copolymer resins Waste water concentrating retracting device and recovery method thereof, specifically a kind of copolymer resins mother liquor concentrations for vinyl chloride and vinyl acetate copolymer resins filters reclamation set and recovery method thereof, belongs to recovery technology field.
Background technology
In the prior art, the mother liquor waste water process produced in vinyl chloride and vinyl acetate copolymer resins production process, adopts following method usually:
(1) in waste water, add special precipitating reagent, be separated by the solid in emulsion with liquid, get supernatant liquid again through biochemical treatment, the clarified solution after process directly discharges, and solid sediment is then transported outward and entrusted other processed in units.
The defect of this processing mode is: processing cost is higher, and the harmful substance transfer in solid, liquid, unfavorable to environment, production cost is strengthened, does not reach the requirement of cleaner production.
(2) utility patent CN 201678490 U " the copolymer resins Waste water concentrating retracting device " announced is for resin disposing mother liquor, can the deficiency of ameliorative way (1), but this device belongs to inner pressed doughnut membrane filtration processes, run stable not for this waste liquid of process, and gas does not clean process, very easily dirty stifled, really cannot realize mother liquor reuse target.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, there is provided a kind of can the recovery resin mother liquor of reliability service, the vinyl chloride of contaminated environment and vinyl acetate copolymer resins Waste water concentrating retracting device and recovery method thereof can be avoided simultaneously, this method greatly reduces the discharge capacity of waste water, alleviate the load of sewage disposal system, production practical application is feasible, and this device has put into operation the continuous several months, operate steadily reliable, reach design object.
According to technical scheme provided by the invention, a kind of copolymer resins Waste water concentrating retracting device, comprises putamina, arranges through chamber, through being provided with some hollow tubular doughnuts in chamber in putamina;
Described putamina bottom is provided with A interface, and top is provided with D interface, and upper end, side arranges C interface, and lower end, side arranges B interface.
Described hollow tubular doughnut quantity is hundreds of to tens thousand of, and its external diameter is 1-2mm.Described hollow tubular doughnut top is fixed on through in chamber, other end plug-hole, and does not fix.Described hollow tubular doughnut can only through Small molecular particle impervious macromolecular particle; Described Small molecular particle is thousands of materials to tens thousand of molecular weight, and described macromolecular particle is hundreds thousand of materials to millions of molecular weight.
Described A interface is waste water inlet, flushing water is imported and exported or compressed air is imported and exported; B interface is waste water inlet, flushing water outlet or compressed air import and export; C interface is dense water out, flushing water is imported and exported or compressed air is imported and exported; D interface is that permeate outlet or compressed air are imported and exported.
The wastewater flow of described waste water inlet is 100-300L/m
2h; Pressure 0.02-0.15Mpa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0.1-0.12Mpa; Be 10-25L/m through discharge
2h; Wastewater pH is 2.0-13.0.
Described copolymer resins Waste water concentrating retracting device reclaims the method for waste water, and step is as follows:
(1) run: A interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; Normally run after rinsing 60s;
(2) secondary runs: A interface enters waste water and compressed air, and wastewater flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air inlet flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; D interface is closed; Normally run after rinsing 60s;
Run for (3) three times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s;
Run for (4) four times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; A interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; B interface is closed, backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s.
Beneficial effect of the present invention: the method for operation of device of the present invention is operation, backwash, just rinse successional, and adopt the method for operation of mixing wastewater with air " the full-time aeration of high cross-flow, pollution limit, limit clean ", stable, not easily dirty stifled, technological process is short; The separation limit reuse of waste water access to plant back, reclaims waste water 95%, both saved production cost, and achieved zero-emission again, really reaches green production.And equipment is few, volume is little, and floor space is little; Fully automatic operation, power consumption is economized, and overall running cost is low, and disposal cost is low.
The advantage of apparatus of the present invention is:
(1) mixing wastewater with air pattern: " high cross-flow " improves film silk surface velocity, decreasing pollution thing, to the blocking of film silk micropore, reduces membrane fouling rate; " aeration operation " makes film silk swing by gas-liquid mixed turbulence state, and carries out gas-liquid scouring to film silk surface, and pollution limit, limit is cleaned, and really achieves fouling membrane synchronous with while recovery, effectively controls the pollution on film surface.Therefore, the mode of mixing wastewater with air is run inflow requirement very low.
The reset mode of mixing wastewater with air film to fouling membrane be pollution limit, limit clean, and conventional film be mostly first pollute backwash again.
(2) produce water efficiency high: single head plug-hole, the other end are cast, and external pressure mode runs (see figure 2), film silk is when intaking, and air inlet simultaneously, film silk swings in the turbulent flow liquid of mixing wastewater with air, and pollutant not easily adheres to, and product water efficiency is higher.
(3) contamination resistance is strong, recovery rate is high: film silk is at the double action lower swing of current and air-flow, and high cross-flow runs the probability making pollutant be attached to plug-hole on film silk and greatly reduces, and decreases the adhewsive action of pollutant to film silk.
Aerating in backwash process, carries out gas-liquid mixed cleaning to the attachment impurity thing on film silk surface, and product water fade is more controlled, ensure that the product water efficiency of every root film silk.Flushing employing adds gas flushing, and gas-liquid mixed cleaning and high flow rate rinse and combine, and cleaning is more thorough, recovery rate is higher.
Accompanying drawing explanation
Fig. 1 structural front view of the present invention.
Fig. 2 structure sectional view of the present invention.
Fig. 3 total system process chart of the present invention.
Detailed description of the invention
Embodiment 1
As shown in Figure 1-2, copolymer resins Waste water concentrating retracting device, comprises putamina 1, arranges through chamber 2, through being provided with some hollow tubular doughnuts 3 in chamber in putamina 1;
Described putamina 1 bottom is provided with A interface, and top is provided with D interface, and upper end, side arranges C interface, and lower end, side arranges B interface.
Described hollow tubular doughnut 3 quantity is hundreds of to tens thousand of, and its external diameter is 1-2mm.Described hollow tubular doughnut 3 top is fixed on through in chamber, other end plug-hole, and does not fix.Described hollow tubular doughnut can only through Small molecular particle impervious macromolecular particle; Described Small molecular particle is thousands of materials to tens thousand of molecular weight, and described macromolecular particle is hundreds thousand of materials to millions of molecular weight.
Described A interface is waste water inlet, flushing water is imported and exported or compressed air is imported and exported; B interface is waste water inlet, flushing water outlet or compressed air import and export; C interface is dense water out, flushing water is imported and exported or compressed air is imported and exported; D interface is that permeate outlet or compressed air are imported and exported.
The wastewater flow of described waste water inlet is 100-300L/m
2h; Pressure 0.02-0.15Mpa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0.1-0.12Mpa; Be 10-25L/m through discharge
2h; Wastewater pH is 2.0-13.0.
Embodiment 2
Described copolymer resins Waste water concentrating retracting device reclaims the method for waste water, and step is as follows:
(1) run: A interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; Normally run after rinsing 60s;
(2) secondary runs: A interface enters waste water and compressed air, and wastewater flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air inlet flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; D interface is closed; Normally run after rinsing 60s;
Run for (3) three times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s;
Run for (4) four times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; A interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; B interface is closed, backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s.
The technological process of embodiment 3 total system
As shown in Figure 3, pending waste water is arranged in feed reservoir a, feed reservoir a is connected with feedstock pump b, feedstock pump b extracts raw material waste water from feed reservoir a, successively through the first filter c, the second filter d and the 3rd filter e, then enter in one group of copolymer resins Waste water concentrating retracting device f, copolymer resins Waste water concentrating retracting device f is connected with through liquid pool g, be connected with backwashing pump h through liquid pool g, be also connected with medicine cleaning of evaporator i through liquid pool g;
Feedstock pump b also filter j washed with medicine is connected; Copolymer resins Waste water concentrating retracting device f passes into compressed air h.
During whole system work, as described in Example 2, now, feed reservoir a fluid, collects liquid through liquid pool g to the working method of copolymer resins Waste water concentrating retracting device f, and compressed air h enters in corresponding interface, realizes whole technological process.
Claims (4)
1. copolymer resins Waste water concentrating retracting device reclaims a method for waste water, and described copolymer resins Waste water concentrating retracting device comprises putamina (1), arranges through chamber (2), through being provided with some hollow tubular doughnuts (3) in chamber in putamina (1);
Described putamina (1) bottom is provided with A interface, and top is provided with D interface, and upper end, side arranges C interface, and lower end, side arranges B interface;
It is characterized in that the step of described method is as follows:
(1) run: A interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; B interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; Normally run after rinsing 60s;
(2) secondary runs: A interface enters waste water and compressed air, and wastewater flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, A interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air inlet flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; D interface is closed; Normally run after rinsing 60s;
Run for (3) three times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; Backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s;
Run for (4) four times: A interface enters compressed air, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; B interface enters waste water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; C interface is dense water out; D interface is permeate outlet, and flow is 10-25L/m
2h;
Backwash: after running 1h, D interface enters backwash water, and flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; A interface is compressed air inlet, and flow is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; C interface is washing water outlet; B interface is closed, backwash 60s;
Just rinse: after backwash, C interface enters flushing water and compressed air, and flushing water flow is 100-300L/m
2h, pressure 0. 02-0. 15MPa; Compressed air require is 0.05-0.15Nm
3/ h, pressure 0. 1-0. 12MPa; A interface is washing water outlet; B, D interface are closed, and normally run after rinsing 60s.
2. copolymer resins Waste water concentrating retracting device reclaims the method for waste water as claimed in claim 1, it is characterized in that: described hollow tubular doughnut (3) quantity is hundreds of to tens thousand of, and its external diameter is 1-2mm.
3. copolymer resins Waste water concentrating retracting device reclaims the method for waste water as claimed in claim 1, it is characterized in that: described hollow tubular doughnut (3) top is fixed on through in chamber, other end plug-hole, and does not fix.
4. copolymer resins Waste water concentrating retracting device reclaims the method for waste water as claimed in claim 1, it is characterized in that: described A interface is waste water inlet, flushing water is imported and exported or compressed air is imported and exported; B interface is waste water inlet, flushing water outlet or compressed air import and export; C interface is dense water out, flushing water is imported and exported or compressed air is imported and exported; D interface is that permeate outlet or compressed air are imported and exported.
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| CN201310647678.4A CN103723795B (en) | 2013-12-04 | 2013-12-04 | Concentrating and recovering device for copolymerization resin waste water and recovery method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647678.4A CN103723795B (en) | 2013-12-04 | 2013-12-04 | Concentrating and recovering device for copolymerization resin waste water and recovery method thereof |
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| CN103723795B true CN103723795B (en) | 2015-05-20 |
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