CN103570157A - Method for processing percolate membrane treatment concentrated solution of refuse landfill - Google Patents
Method for processing percolate membrane treatment concentrated solution of refuse landfill Download PDFInfo
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- CN103570157A CN103570157A CN201310511182.4A CN201310511182A CN103570157A CN 103570157 A CN103570157 A CN 103570157A CN 201310511182 A CN201310511182 A CN 201310511182A CN 103570157 A CN103570157 A CN 103570157A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000012528 membrane Substances 0.000 title abstract description 32
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 31
- 239000003513 alkali Substances 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000002244 precipitate Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 53
- 239000000243 solution Substances 0.000 claims description 49
- 239000012530 fluid Substances 0.000 claims description 12
- 239000010813 municipal solid waste Substances 0.000 claims description 12
- 238000001471 micro-filtration Methods 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000005611 electricity Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000001728 nano-filtration Methods 0.000 description 5
- 238000005325 percolation Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000001694 spray drying Methods 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 238000009285 membrane fouling Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The invention discloses a method for processing a percolate membrane treatment concentrated solution of a refuse landfill. The method comprises steps of adding an alkali into the percolate membrane treatment concentrated solution of a refuse landfill, and reacting to obtain a mixed liquor containing precipitate; micro-filtering the mixed liquor to obtain a first permeating liquor and a closure liquor; press-filtering for dehydrating the closure liquor through a plate frame so as to obtain a second permeating liquor and mud cakes, returning the second permeating liquor to the alkali adding step for recycling, and solidifying the mud cakes; adding an acid into the first permeating liquor, regulating the pH to be 6-9, and then concentrating the first permeating liquor through reverse osmosis to obtain a third permeating liquor and a concentrated liquor; discharging the third permeating liquor directly, and drying and solidifying the concentrated liquor. The method is simple, can improve the recovery rate of the percolate membrane treatment concentrated solution, and reduces damage to the reverse osmosis membranes; the quality of the effluent is stable and reaches the standard.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to a kind of method that treating refuse landfill percolate film is processed concentrated solution.
Background technology
Sanitary landfill is at present the major way that China processes domestic waste, in landfill process, because anaerobically fermenting, organic substance decomposing, rainwater shower, underground water immersion etc. produce multiple metabolic substd and moisture, forms percolate.This is that a kind of change of water quality is large, complicated component, organic concentration is high, ammonia-nitrogen content is high, saltiness is high, soil ulmin concentration is high waste water, and intractability is very large.
The processing mode of percolate mainly contains the method for recharging, physico-chemical process, biochemical process etc.Raising along with national requirements for environmental protection, the percolate treatment facility of current domestic built employing conventional treatment process, it processes rear water outlet all can not meet the requirement that < < GB16889-2008 household refuse landfill sites pollutes control criterion > >.
Along with the progress of biotechnology and membrane technology, biochemical process+embrane method combination process is processed Technology of Landfill Leachate and is developed rapidly, becomes gradually the mainstream technology that percolate is processed.The Persistent organic pollutants major part of bio-chemical effluent can be held back by nano-filtration unit, and nanofiltration water outlet, through reverse-osmosis treated, almost can guarantee that all contamination indexs all can reach emission standard.But the performance characteristics due to nanofiltration membrane/reverse osmosis membrane, membrane process craft has just been realized holding back of pollutent, in film treating processes, inevitably produced a large amount of membrane concentration liquid, this partial concentration liquid has higher salinity and high-concentration hardly-degradable organism, and biodegradability is poor.For this partial concentration liquid, mostly there is the problems such as processing cost is high, energy consumption is too high, treatment effect is unstable in existing membrane concentration liquid treatment technology, current most percolate from garbage filling field is processed project film is processed to Concentrated liquid recharge to refuse landfill, cause salt and non-degradable pollutant accumulation, to later stage garbage percolation liquid treating system cannot be moved.Therefore, percolate concentrated solution is processed the treatment technology application that there is no at present mature and reliable, is the biggest problem in membrane separation process.
The Chinese patent literature that is CN101264997A as publication number discloses the film filtration concentrated treatment process of one way of life percolate in processing, and comprises as follows: (1) adds potassium permanganate in described concentrated solution, to carry out pre-treatment; (2) clorox and dioxide peroxide are added successively in the pretreated concentrated solution of described step (1) and stirred, the two timed interval adding is at least 1 hour; (3) PH of the concentrated solution after described step (2) processing is adjusted to 11, adds coagulating agent and flocculation agent to process; (4) by the liquid filtering after described step (3) processing.Only pass through flocculation sediment, the organism of removing is limited, poor removal effect to salinity, and in the method, effluent quality place one's entire reliance upon input kind and the consumption of oxygenant, coagulating agent and flocculation agent, there is fluctuation in the film filtration concentrated composition of processing due to different batches, therefore controlling suitable medicament has certain difficulty, causes effluent quality unstable.
And for example publication number is the treatment process that CN102060405A discloses one way of life rubbish percolation liquid membrane concentrated solution, comprise: (1) dish tubular membrane filtration step: described rubbish percolation liquid membrane concentrated solution, first by dish tubular filter film, obtains seeing through for the first time liquid and containing organism trapped fluid; (2) dish tubular membrane enrichment step: will see through for the first time liquid by the concentrated film of dish tubular type, and obtain seeing through for the second time liquid and trapped fluid; (3) hot enrichment step: above-mentioned trapped fluid is carried out to the concentrated high power concentrated solution that obtains of heat with thickener; (4) drying step: above-mentioned high power concentrated solution is dried to pressed powder.By the concentrated organism and take inorganic salt as main total dissolved solid of effectively going out to a certain extent in concentrated solution of dish tubular filter, but because the Pollutant levels of membrane concentration liquid are high, directly it is carried out to film processing, easily cause dish tubular filter film or reverse osmosis membrane fouling, affect its work-ing life and water treatment effect.
Summary of the invention
The invention provides a kind for the treatment of refuse landfill percolate film and process the method for concentrated solution, technique is simple, can improve the rate of recovery of percolation liquid membrane process concentrated liquid, reduce the infringement of reverse osmosis membrane and pollution, and stable effluent quality is up to standard.
Treating refuse landfill percolate film is processed a method for concentrated solution, it is characterized in that, comprising:
(1) alkali is added percolate from garbage filling field film process in concentrated solution and react, obtain the mixed solution containing precipitation;
(2) described mixed solution is carried out to micro-filtration, obtain first and see through liquid and the liquid that dams;
(3) described trapped fluid is carried out to filter press dehydration, obtain second and see through liquid and mud cake, described second returns to step (1) through liquid carries out circular treatment, and described mud is cured;
(4) see through acid adding in liquid toward described first, regulate pH to 6-9, then by reverse osmosis, to first, see through liquid and concentrate, obtain the 3rd and see through liquid and concentrated solution;
(5) the described the 3rd through liquid, directly discharge, described concentrated solution carries out dry solidification.
Alkali can generate precipitation with calcium, magnesium, heavy metal plasma reaction that percolate from garbage filling field film is processed in concentrated solution (processing concentrated solution hereinafter referred to as film), reduce film and process the total hardness of concentrated solution, and suitable pH is not only conducive to fully carrying out of reaction, also can guarantee the stable of precipitation simultaneously, reach preferably sedimentation effect, add after alkali, the pH of system is 10.5-12.0.Preferably, add after alkali, the pH of system is 10-11.5, and preferred pH is 11.5.
Described alkali is sodium hydroxide, calcium hydroxide or sodium carbonate.Above-mentioned alkali source is wide, and cheap.
Micro-filtration is held back the throw out in described mixed solution, suspended particle, colloid, macromole organic pollutant etc., and avoid it when follow-up reverse osmosis, to stop up, pollute reverse osmosis membrane, in step (2), during filtration, adopt tube type filter membrance to carry out micro-filtration to described mixed solution.Tube type filter membrance is insensitive to stopping up, and be easy to clean, and the pressure-losses in membrane module is less, is applicable to containing higher how sedimentary filtration.
The aperture of described tube type filter membrance is 0.05-0.2 μ m, is preferably 0.1 μ m.The aperture of tube type filter membrance is too small, easily stops up, and aperture is excessive can not effectively catching pollutent, affects filter effect.
The operating pressure of described tube type filter membrance is 0.07-0.7MPa, is preferably 0.1-0.4MPa, more preferably 0.3-0.4MPa.Can guarantee the filtration efficiency that having of tube type filter membrance is higher.
For avoiding affecting micro-filtration, when the throw out in trapped fluid runs up to a certain degree, need process in time, conventionally, when being 2.5-3.5%, the contents of precipitate damming in liquid carries out filter press.
To seeing through in liquid and add after acid for the first time, regulate pH to 6-9, preferred, regulate pH to 6.0 – 8.0, preferred, regulate pH to 6.0-6.5.Reverse-osmosis membrane element operation pH scope is at 6-9, better protective membrane element within the scope of this, the work-ing life of prolongation membrane element.
The first various mineral ions, colloidalmaterial and macromole solute seeing through in liquid can be further held back in reverse osmosis, during reverse osmosis, adopts disc tube reverse osmosis (dt-ro) film to carry out concentration to seeing through for the first time liquid.The contamination resistance of disc tube reverse osmosis (dt-ro) film is strong, and treatment effect is good and own loss is little.
The ratio of desalinization of described disc tube reverse osmosis (dt-ro) film is 99.0-99.8%, is preferably 99.5%, adopts the disc tube reverse osmosis (dt-ro) film of above-mentioned ratio of desalinization can reach better treatment effect.
For guaranteeing higher reverse osmosis efficiency, the operating pressure of described disc tube reverse osmosis (dt-ro) film is 0.5-7.0MPa, is preferably 4.0-6.0MPa, more preferably 4.0-5.5MPa.
In step (5), described dry solidification is dry for spraying, and inlet temperature is controlled at 90-130 ℃, is preferably 100-120 ℃.
Compared with prior art, beneficial effect of the present invention is:
Treating refuse landfill percolate film of the present invention is processed the method for concentrated solution, first by adding alkali, remove calcium, magnesium, heavy metal plasma in film processing concentrated solution, by micro-filtration, carry out preliminary treatment again, reduce film and processed the total hardness of concentrated solution and the material that affects reverse osmosis membrane fouling, through reverse osmosis, carry out advanced treatment again, technique is simple.
The present invention is directed to percolate from garbage filling field film and process concentrated solution, select suitable treatment process, operation, can reach good treatment effect, process water outlet up to standard.
Method of the present invention has improved the rate of recovery (can reach 90%) of rubbish percolation liquid membrane concentrated solution, has reduced the dense water yield of film processing system.
Method operation of the present invention arranges rationally, by micro-filtration, reverse osmosis, removes gradually pollutent, and not only treatment effect is good, also can reduce the loss to equipment.
Technique of the present invention is simple, easy and simple to handle, practical, and treatment effect is good, and it can finely make up the deficiency of conventional garbage landfill percolate treatment technology as a kind of advanced treatment technology.
Accompanying drawing explanation
Fig. 1 is the process flow sheet that treating refuse landfill percolate film of the present invention is processed the method for concentrated solution.
Embodiment
Below in conjunction with specific embodiment, the present invention is further explained.
Embodiment 1
Adopt combination process disclosed by the invention to process certain percolate from garbage filling field film and process concentrated solution.
First this refuse landfill adopts denitrification, nitration processes to process, and then adopts external membrane bioreactor to carry out mud-water separation, and water outlet is through nanofiltration membrane treatment, and nanofiltration membrane water outlet is at water outlet qualified discharge after reverse osmosis membrane processing.It is 1500mg/L that film is processed rear concentrated solution CODcr concentration, and total hardness content is 1800mg/L, and it is 5600 μ s/cm that electricity is led, and pH is 7.2.
(1) get 5 tons of films and process concentrated solutions, to film, process concentrated solution and add technical grade sheet alkali to regulate its pH be 11.5, now, after the heavy metal ion in concentrated solution and calcium, magnesium ion etc. and sheet alkali reaction, generate a large amount of precipitations;
(2) the above-mentioned mixed solution containing precipitating is filtered by tube type filter membrance, it is 0.1 μ m that tube type filter membrance filters microfiltration membrane aperture, and operating pressure is 0.3Mpa, obtains first and contain sedimentary trapped fluid through 4.9 tons of liquid and 100L after filtration; Wherein, the first CODcr concentration that sees through liquid is 1240mg/L, and total hardness content is 160mg/L, and it is 5800 μ s/cm that electricity is led, and pH is 11.5; In trapped fluid, sedimentary weight content is 3.0%.
(3) containing sedimentary trapped fluid, go filter press dehydration, obtain second and see through liquid and mud cake, second is back to step (1) through liquid continues to process, and mud cake is directly cured processing;
(4) regulate the first pH through liquid, while regulating pH, select acid for technical-grade hydrochloric acid, after acid adding, pH is 6.5, regulated after pH, first sees through liquid obtains the 3rd through 4.4 tons of liquid and concentrated solution after disc tube reverse osmosis (dt-ro) membrane concentration, the ratio of desalinization of disc tube reverse osmosis (dt-ro) film is 99.5%, and operating pressure is 4MPa.After testing, the 3rd CODcr concentration that sees through liquid is 32mg/L, and total hardness content is 20mg/L, and it is 130 μ s/cm that electricity is led, and pH is 6.0, qualified discharge;
(5) concentrated solution is 0.5 ton, and after testing, the CODcr concentration of concentrated solution is 8600mg/L, and total hardness content is 1500mg/L, and it is 46400 μ s/cm that electricity is led, and pH is 6.8; Adopt spray drying unit to be dried concentrated solution, spray drying unit is controlled inlet temperature at 115-120 ℃, 0.5 ton of last powder 20kg that obtains of concentrated solution, and powder is cured processing.
Embodiment 2
This exemplary application combination process disclosed by the invention is processed certain percolate from garbage filling field film and is processed concentrated solution, and this landfill yard adopts the described percolate treating process of example 1.It is 3200mg/L that film is processed rear concentrated solution CODcr concentration, and total hardness content is 3100mg/L, and it is 8200 μ s/cm that electricity is led, and pH is 7.3.
(1) get 5 tons of films and process concentrated solutions, to film, process concentrated solution and add technical grade sheet alkali to regulate its pH be 11.5, now, after the heavy metal ion in concentrated solution and calcium, magnesium ion etc. and sheet alkali reaction, generate a large amount of precipitations;
(2) the above-mentioned mixed solution that contains precipitation is filtered by tube type filter membrance, tubular membrane aperture is 0.1 μ m, and operating pressure is 0.4Mpa, obtains first and contain sedimentary trapped fluid through 4.8 tons of liquid and 200L after filtration; Wherein, the first CODcr concentration that sees through liquid is 2600mg/L, and total hardness content is 280mg/L, and it is 8400 μ s/cm that electricity is led, and pH is 11.5; In trapped fluid, sedimentary weight content is 3.5%.
(3) containing sedimentary trapped fluid, go filter press dehydration, obtain second and see through liquid and mud cake, second is back to step (1) through liquid continues to process, and mud cake is directly cured processing;
(4) regulate the first pH through liquid, regulate its pH to select acid for technical-grade hydrochloric acid, after acid adding, pH is 7.0, has regulated after pH, and first sees through liquid obtains the 3rd through 3.8 tons of liquid and concentrated solution after disc tube reverse osmosis (dt-ro) membrane concentration.Wherein, the ratio of desalinization of disc tube reverse osmosis (dt-ro) film is 99.5%, and the operating pressure of disc tube reverse osmosis (dt-ro) film is 5.5MPa; After testing, the 3rd CODcr concentration that sees through liquid is 32mg/L, and total hardness content is 20mg/L, and it is 620 μ s/cm that electricity is led, and pH is 5.8, qualified discharge;
(5) concentrated solution is 1 ton, and after testing, the CODcr concentration of concentrated solution is 16200mg/L, and total hardness content is 2100mg/L, and it is 39000 μ s/cm that electricity is led, and pH is 6.5; Adopt spray drying unit to be dried concentrated solution, spray drying unit is controlled inlet temperature at 115-120 ℃, 1 ton of last powder 60kg that obtains of concentrated solution, and powder is cured processing.
Claims (10)
1. treating refuse landfill percolate film is processed a method for concentrated solution, it is characterized in that, comprising:
(1) alkali is added percolate from garbage filling field film process in concentrated solution and react, obtain the mixed solution containing precipitation;
(2) described mixed solution is carried out to micro-filtration, obtain first and see through liquid and the liquid that dams;
(3) described trapped fluid is carried out to filter press dehydration, obtain second and see through liquid and mud cake, described second returns to step (1) through liquid carries out circular treatment, and described mud is cured;
(4) see through acid adding in liquid toward described first, regulate pH to 6-9, then by reverse osmosis, to first, see through liquid and concentrate, obtain the 3rd and see through liquid and concentrated solution;
(5) the described the 3rd through liquid, directly discharge, described concentrated solution carries out dry solidification.
2. the method for claim 1, is characterized in that, in step (1), adds after alkali, and the pH of system is 10.5-12.0.
3. the method for claim 1, is characterized in that, described alkali is sodium hydroxide, calcium hydroxide or sodium carbonate.
4. the method for claim 1, is characterized in that, in step (2), adopts tube type filter membrance to carry out micro-filtration.
5. method as claimed in claim 4, is characterized in that, the aperture of described tube type filter membrance is 0.05-0.2 micron.
6. the method for claim 1, is characterized in that, described in the contents of precipitate that dams in liquid carry out filter press while reaching 2-5%.
7. the method for claim 1, is characterized in that, in step (4), regulates pH to 6.0-8.
8. the method for claim 1, is characterized in that, in step (5), adopts disc tube reverse osmosis (dt-ro) film to carry out concentration.
9. method as claimed in claim 8, is characterized in that, the operating pressure of described disc tube reverse osmosis (dt-ro) film is 0.5-7.0MPa.
10. method as claimed in claim 8, is characterized in that, described disc tube reverse osmosis (dt-ro) film ratio of desalinization be 99.0-99.8%.
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| CN103964609A (en) * | 2014-05-16 | 2014-08-06 | 天津海普尔膜科技有限公司 | Membrane treatment method of landfill leachate concentrate |
| CN104355451A (en) * | 2014-11-14 | 2015-02-18 | 重庆理工大学 | Process for recycling biochemical effluent of landfill leachate |
| CN104591432A (en) * | 2014-12-31 | 2015-05-06 | 浙江博世华环保科技有限公司 | Processing method of landfill leachate film concentrated solution |
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| CN105217751A (en) * | 2014-06-19 | 2016-01-06 | 胡明成 | The multiple precipitator method are removed city refuse landfill and are concentrated liquid calcium, magnesium ion |
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| CN110255758A (en) * | 2019-06-05 | 2019-09-20 | 厦门嘉戎技术股份有限公司 | A kind of high alkalinity method for treating garbage percolation liquid and device |
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| CN103964609A (en) * | 2014-05-16 | 2014-08-06 | 天津海普尔膜科技有限公司 | Membrane treatment method of landfill leachate concentrate |
| CN105217751A (en) * | 2014-06-19 | 2016-01-06 | 胡明成 | The multiple precipitator method are removed city refuse landfill and are concentrated liquid calcium, magnesium ion |
| CN104355451A (en) * | 2014-11-14 | 2015-02-18 | 重庆理工大学 | Process for recycling biochemical effluent of landfill leachate |
| CN104355451B (en) * | 2014-11-14 | 2016-08-24 | 重庆理工大学 | The technique of percolate bio-chemical effluent recycling |
| CN104591432A (en) * | 2014-12-31 | 2015-05-06 | 浙江博世华环保科技有限公司 | Processing method of landfill leachate film concentrated solution |
| CN104787929A (en) * | 2015-04-22 | 2015-07-22 | 光大环保技术研究院（深圳）有限公司 | Treatment method and device of landfill leachate concentrate |
| CN106745386A (en) * | 2016-12-26 | 2017-05-31 | 成都美富特膜科技有限公司 | The processing method and processing equipment of high metal ion content waste water |
| CN106745386B (en) * | 2016-12-26 | 2021-02-12 | 成都美富特环保产业集团有限公司 | Treatment method and treatment equipment for high-metal ion content wastewater |
| CN107840533A (en) * | 2017-10-19 | 2018-03-27 | 浙江博世华环保科技有限公司 | A kind of processing method of garbage burning factory percolate |
| CN109205900A (en) * | 2018-08-27 | 2019-01-15 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse-burning plant percolation liquid treating system |
| CN110255758A (en) * | 2019-06-05 | 2019-09-20 | 厦门嘉戎技术股份有限公司 | A kind of high alkalinity method for treating garbage percolation liquid and device |
| CN112093957A (en) * | 2020-08-20 | 2020-12-18 | 山东达源环保工程有限公司 | Treatment method of household garbage concentrated solution |
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