CN102649616A - Comprehensive treatment method for garbage leachate - Google Patents
Comprehensive treatment method for garbage leachate Download PDFInfo
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- CN102649616A CN102649616A CN2012101415987A CN201210141598A CN102649616A CN 102649616 A CN102649616 A CN 102649616A CN 2012101415987 A CN2012101415987 A CN 2012101415987A CN 201210141598 A CN201210141598 A CN 201210141598A CN 102649616 A CN102649616 A CN 102649616A
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Abstract
The invention relates to a comprehensive treatment method for garbage leachate. The comprehensive treatment method for the garbage leachate comprises the following steps: (1) performing foam separation pretreatment; (2) performing coagulation sedimentation pretreatment; (3) performing microfiltration and ultrafiltration treatment; (4) performing gaseous film separation treatment; and (5) performing biochemical treatment. The garbage leachate is subjected to coagulation sedimentation and foam separation pretreatment, so that most of metal ions, floating oil, surfactants and part of organic matters are removed from the garbage leachate and the chemical oxygen demand (COD) and the chromaticity of the garbage leachate are reduced; suspended matters, macromolecular matters and the like are removed from the leachate through the microfiltration and ultrafiltration after pretreatment, so the liquid is clear, the gaseous film is difficult to block and pollute, and long-term operating stability of the gaseous film in the subsequence process is guaranteed; and ammonia nitrogen is efficiently removed from the leachate in the gaseous film stabilizing process and the ammonia nitrogen removal rate can be adjusted as required, so that the waste water has the best nitrogen carbon ratio and the successful operation of the subsequence biochemical system is guaranteed.
Description
Technical field
The invention belongs to environmental technology field, relate to percolate, especially a kind of integrated conduct method of percolate.
Background technology
Percolate is in garbage loading embeading and the stacking process, soaks generation down because the liquid that organic substance decompose to produce in the rubbish dashes in the pouring of external moisture (comprising Atmospheric precipitation, surface water, underground water).Percolate is a kind of high-concentration waste water of complicated component; Contain materials such as large amount of organic, holophytic nutrition thing (nitrogenous is main), mineral ion and heavy metal ion, have that colourity is dark, organic content is high, ammonia-nitrogen content is high, water quality is complicated, water quality is with characteristics such as field variations in age.The water quality of percolate can be divided into two types usually according to " age " of landfill yard: one type is the percolate of " youth " landfill yard (below 5 years), is characterized in that ammonia nitrogen concentration is high, generally about 1000mgL; COD and BOD
5Concentration is high, the about 20000 ~ 30000mg/L of COD, BOD
5About 10000 ~ 20000mg/L, BOD
5/ COD ratio is generally 0.5～0.7, and C/N is higher, and biodegradability is good; Voltaile fatty acid (VFA), metal content are higher; The another kind of percolate that is the landfill time in the refuse landfill generation of the comparison more than 5 years " old " is characterized in the rising of pH value and is tending towards weakly alkaline, BOD
5, COD is relatively low, the about 10000 ~ 15000mgL of COD, BOD
5About 1000 ~ 2000mgL, BOD
5/ COD value is generally below 0.1, and ammonia nitrogen concentration is high, about 2000 ~ 3000mg/L.The ammonia nitrogen of high density has reduced microbic activity, has not only increased the load of percolate biology treatment system, also severe inhibition, destroy its oxygenizement; And prolongation along with the landfill time; COD in the percolate is on a declining curve, behind the certain hour, C/N can occur less than 3 situation; Cause the microbial nutrition serious disproportion, have a strong impact on the normal operation of subsequent biological treatment system.
The conventional biochemical treatment of percolate comprises that aerobic treatment, anaerobic treatment or both combine the method for handling; Connect A/O (anoxic/aerobic) technology behind the complete bio anaerobic commonly used; It has advantages such as treatment effect is good, nitric efficiency is high, running cost is low; Be with the most use at present, also effective treatment process.But biochemical influent ammonium concentration can not be too high, and the ammonia nitrogen concentration in the sewage is high more, and is just strong more to the restraining effect of microorganism active.Existing data shows, being 15 ℃ in temperature is under 8 the condition with pH value, and when total ammonia nitrogen concentration during above 200mgL, it is NH that 6% ammonia nitrogen is wherein arranged
3Form, this moment ammonia nitrogen with the oxygenizement of destroy microorganisms, microorganism active is suppressed.Relevant test shows: when ammonia nitrogen concentration was 1600mg/L, the relative reactivity of anaerobic sludge had only 59%, and sludge activity receives moderate to be suppressed.When influent ammonium concentration during greater than 3000mg/L, sludge activity severe occurs and suppresses, and does not almost have biological activity, this shows the too high safe operation that will threaten biosystem of ammonia nitrogen.So, for the percolate that contains ammonia nitrogen in high density, before carrying out a biological disposal upon, be necessary to carry out pre-treatment and remove ammonia, to guarantee the normal operation of follow-up biochemical treatment, guarantee that final treat effluent is up to standard.
Through retrieval, find following four pieces of publication documents relevant with present patent application:
1, a kind of garbage filter liquid processing method (CN101428938) successively comprises flocculation precipitation pretreatment, the preparatory acidification of hydrolysis, anaerobic treatment, includes short-cut nitrification and denitrification and nitrated aerobic treatment, membrane sepn processing and the oxidizing, flocculating processing of secondary denitrification.
2, a kind of garbage leachate treatment process (CN101671095), percolate gets into coagulative precipitation tank then after equalizing tank homogenizing water quality; Add the alkali deamination then, be promoted to the UASB+AF pond through pump again, remove large amount of organic; Water outlet again with raw waste water factory and office reasons after sewage get into material filling type A/O pond jointly, remove the organism and the ammonia nitrogen of difficult degradation, after flow through and get into the advanced oxidation system again after the second pond water outlet; Carry out deep oxidation; Get into BAF then, after the sand filtration system handles, get into film processing system again, guarantee that finally stable effluent quality is up to standard.
3, a kind of equipment of Membrane Bioreactor for Wastewater Treatment percolate (CN2878369); Comprise membrane bioreactor; Membrane bioreactor comprise suspension growth thing reaction chamber, with the membrane sepn treating chamber of suspension growth thing reaction chamber adjacency and the water outlet water pump that links to each other with the membrane sepn treating chamber through pipeline; The chamber wall of suspension growth thing reaction chamber is provided with water-in, is provided with aerating system and feedwater water pump in the suspension growth thing reaction chamber, and the pipeline that links to each other with the feedwater water pump extends in the membrane sepn treating chamber; Be provided with the microfiltration membrane group in the membrane sepn treating chamber, the microfiltration membrane group links to each other with the outer water outlet water pump of membrane sepn treating chamber through pipeline.
4, a kind of percolate advanced treatment process method (CN102086075A) is intake and is the water outlet after the biochemical treatment of percolate process; Method mainly comprises coagulative precipitation tank, oxidation pond, anaerobic biofilter, film treatment facility; Process step: (1) removes partial organic substances through coagulating sedimentation, reduces colourity; (2) further remove organism difficult degradation, can not be biochemical through the oxygenant of compositions such as ozone, and improve the biodegradability of water outlet; (3) remove SS, organism and nitre nitrogen in the percolate through anaerobic filter; (4) guarantee the stability of whole system water outlet and reach emission standard through membrane separation technique, but reuse.
Through the technical characterictic contrast, above-mentioned four pieces of publication documents have the different of essence with present patent application, and the membrane sepn that above-mentioned patent is sayed is handled and referred to reverse osmosis process treating refuse percolate, remains the further handling problem at reverse osmosis concentrated liquid.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art, a kind of integrated conduct method of percolate is provided, this method can effectively be removed heavy metal ion, ammonia nitrogen and the COD in the garbage filter, finally realizes the qualified discharge of percolate.
The present invention realizes that the technical scheme of purpose is:
A kind of integrated conduct method of percolate, step is:
⑴ foam separation pre-treatment:
Carry out at foam separating tower, the former water of percolate gets into from the foam separation top of tower, from the water outlet of foam separation tower bottom; Gas is from the ventilation of foam separator bottom, and the top goes out foam, and the flow-ratio control of gas flow and waste water is 12: 1-8: between 1;
⑵ coagulating sedimentation pre-treatment:
Carry out at coagulative precipitation tank, adopting quicklime or calcium hydroxide is coagulating agent, and consumption is the former water of 10-25kg/ ton percolate, and the coagulation stage need stir 5-15 minute, leaves standstill 1-4 hour;
⑶ micro-filtration, uf processing:
In micro-filtration, ultra-fine filter, carry out;
⑷ gaseous film separating treatment:
On the gaseous film tripping device, carry out deamination with sour absorption liquid and handle, the gaseous film tripping device comprises shell pipe type membrane module that shell pipe type membrane module that the tubular fibre microporous hydrophobic membrane makes, shell pipe type membrane module that the superpower hydrophobic membrane of tubular fibre micropore makes, the tubular fibre microporous hydrophobic membrane that has microthin coating make and the novel pipe shell type membrane modules that contain two cover tubular fibre microporous hydrophobic membranes;
⑸ biochemical treatment:
Percolate behind the employing aerobic/anaerobic SBR biochemistry pool biochemical treatment deamination.
And said step ⑴ also adopts the air supporting mode to carry out pre-treatment.
And the coagulating sedimentation pre-treatment of said step ⑵ adopts electric flocculation technique to handle, but before stablizing gaseous state embrane method ammonia nitrogen removal, need be increased to more than 11.5 with quicklime, calcium hydroxide or the sodium hydroxide pH value with percolate.
And < 2, said acid is any one or its mixture in sulfuric acid, phosphoric acid, hydrochloric acid, the nitric acid to the pH of the used sour absorption liquid of deamination among the said step ⑷.
And the shell pipe type membrane module that stable state air film method deamination process is used among the said step ⑷ is the shell pipe type membrane module that has the pipe core liquid distributor in the assembly.
And the used tubular fibre microporous hydrophobic membrane of said shell pipe type membrane module comprises two kinds of patterns, and a kind of is filling film silk in bulk in the housing; Another kind is the film silk of filling braiding in the housing.
And; Stablize the used film of gaseous state embrane method deamination among the said step ⑷ and be micropore, hydrophobic or super-hydrophobic hollow-fibre membrane; Mould material is one or several a mixture of Vestolen PP 7052, Vilaterm, pvdf, tetrafluoroethylene, or with the mixture of other macromolecular compound stronger than PTFE hydrophobicity.
And the material of said tubular fibre microporous hydrophobic membrane is the polymer non-polar material, and macromolecular material is one or more the mixture among PP, PE, PVDF or the PTFE, or with the mixture of super-hydrophobic macromolecular compound.
Advantage of the present invention and positively effect are:
1, the present invention adopts coagulating sedimentation and foam separation pre-treatment to percolate, makes that most of metals ion, oil slick, tensio-active agent and partial organic substances are removed in the percolate, has reduced COD and the colourity in the percolate simultaneously; Micro-filtration, ultra-filtration process are removed the suspended substance in the percolate, macromolecular substance etc. after the pre-treatment, and feed clarification is difficult for stopping up, pollutes and stablize gaseous film, has ensured that the prolonged operation of stablizing gaseous film in the subsequent technique is stable; Stablize the gaseous film process and efficiently remove the ammonia nitrogen in the percolate, and can make waste water have best carbon-nitrogen ratio, guarantee the trouble-free operation of follow-up biochemical system according to feed liquid needs adjustment ammonia-nitrogen removal rate.
2, the present invention had increased stable gaseous state embrane method ammonia nitrogen removal process before biological process; This process can effectively be removed the ammonia nitrogen of percolate middle and high concentration; And do not receive the percolate influence at " age ", ammonia nitrogen removal frank can reach 90～99%, and environment is not had secondary pollution.
3, the present invention is suitable for the percolate of all age group of refuse landfill and handles, and all can realize qualified discharge, and energy consumption is low, and process cost is few, and non-secondary pollution has tangible economic benefit, environmental benefit and social benefit.
Embodiment
Be described in detail embodiments of the invention below, need to prove, present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
A kind of integrated conduct method of percolate, step is:
⑴ the foam separation pre-treatment of the former water of percolate:
Carry out at foam separating tower, the former water of percolate gets into from the foam separation top of tower, from the water outlet of foam separation tower bottom; Gas is from the ventilation of foam separator bottom, and the top goes out foam, and the throughput ratio of gas flow and waste water can be controlled between 12: 1～8: 1.The processing power of foam separating tower can require to design according to treatment scale, and treatment capacity is changeable.
Perhaps also available air supporting mode is removed the oil slick in the percolate.
Effect: remove protein and the oil slick of surfactant in the percolate, small molecular weight etc. with the foam separation mode, improve the surface tension of percolate, also reduced the COD of percolate simultaneously.
⑵ the coagulating sedimentation pre-treatment of the former water of percolate:
Carry out at coagulative precipitation tank, adopting quicklime or calcium hydroxide is coagulating agent, and according to the percolate difference at " age ", the consumption of coagulating agent is also different.When making coagulating agent with the white lime of market sale, consumption is the former water of 10-25kg/ ton percolate, and the coagulation stage need stir 5-15 minute, leaves standstill 1-4 hour.When the equipment of coarse filtration is arranged behind the coagulating sedimentation, can reduce the time that staticly settles, need not add other auxiliary flocculation agent in the process of coagulating sedimentation.
When adopting electric flocculation technique to handle, before stablizing gaseous state embrane method ammonia nitrogen removal, need to be increased to more than 11.5 with quicklime, calcium hydroxide (white lime) or sodium hydroxide pH value with percolate; When adopting quicklime or calcium hydroxide is coagulating agent when handling, and before stablizing gaseous state embrane method ammonia nitrogen removal, need not improve the pH value of percolate.
Effect: coagulating sedimentation is removed most heavy metal ion in the percolate; And change into volatile free ammonia molecule to most ammonium radical ions; Effectively reduce organic concentration, and then reduce the colourity and the COD of percolate, and improve percolate the pH value.
⑶ micro-filtration, uf processing:
Little uf processing is in micro-filtration, ultra-fine filter, to carry out, and is prior art, can design according to waste water actual treatment amount.
Effect: the suspended substance that possibly exist in the filtering percolate, colloid, macromolecule material etc., make to get into again after the feed clarification and stablize the gaseous film process, help to prevent stablize the pollution of gaseous film, it is stable that the prolonged operation of gaseous film assembly is stablized in guarantee.
⑷ gaseous film separating treatment:
Adopt and stablize gaseous film (model specification: < 2, acid can be any one or its mixture in sulfuric acid, phosphoric acid, hydrochloric acid, the nitric acid to SQM-PP-Φ 90 * 1100mm) methods with the sour pH that removes the used acid solution of ammonia nitrogen in high density deamination in the percolate; Treatment capacity is changeable, can design according to the actual treatment amount.Stablize gaseous state embrane method deamination process and operate at normal temperatures and pressures, directly do impellent with acid-alkali neutral chemical potential, and because the concentration of the free ammonia of the absorption side of film is zero; This provides the maximum impetus of deamination process; Thereby make this deamination process need not heat rejection, and need not the electric power of air cycle, only need consume low amounts of power to make waste water and sour absorption liquid flow through membrane module; Process cost is low, and sub product is valuable ammonium salt.
The multiple film device configuration that stable state air film method deamination process is used comprises the shell pipe type membrane module that the tubular fibre microporous hydrophobic membrane makes; The shell pipe type membrane module that the superpower hydrophobic membrane of tubular fibre micropore makes; Have shell pipe type membrane module that the tubular fibre microporous hydrophobic membrane of microthin coating makes and the novel pipe shell type membrane modules that contain two cover tubular fibre microporous hydrophobic membranes.
The shell pipe type membrane module that stable state air film method deamination process is used comprises two kinds of patterns, and is a kind of for having the shell pipe type membrane module of pipe core liquid distributor in the assembly; Another kind is the coventional type shell pipe type membrane module that does not have the pipe core liquid distributor in the assembly.
The used tubular fibre microporous hydrophobic membrane of shell pipe type membrane module comprises two kinds of patterns, and a kind of is filling film silk in bulk in the housing; Another kind is the film silk of filling braiding in the housing.
Stablize the used film of gaseous state embrane method deamination and be micropore, hydrophobic or super-hydrophobic hollow-fibre membrane; Mould material is the polymer non-polar material; Can be one or several mixture of Vestolen PP 7052, Vilaterm, pvdf, tetrafluoroethylene etc., or with the mixture of other macromolecular compound stronger than PTFE hydrophobicity.
The material that removes the used hollow fiber microporous membrane of ammonia nitrogen in the percolate is the polymer non-polar material; Macromolecular material can be one or more the mixture among PP (Vestolen PP 7052), PE (Vilaterm), PVDF (pvdf) or the PTFE (tetrafluoroethylene), or with the mixture of the macromolecular compound of super-hydrophobic (stronger) than PTFE hydrophobicity.
Adopt and stablize the ammonia nitrogen in high density in the gaseous state film method for removing percolate, ammonia-nitrogen removal rate is 90～99%.
Effect: remove the ammonia nitrogen of percolate middle and high concentration, clearance can reach 90～99%, and environment is not had secondary pollution, and by product is valuable ammonium salt.Can make waste water have best carbon-nitrogen ratio through the percolate behind the ammonia nitrogen removal, guarantee the trouble-free operation of follow-up biochemical system
⑸ biochemical treatment:
Percolate adopts aerobic/anaerobic SBR biochemical treatment.Percolate behind the aerobic/anaerobic SBR method biochemical treatment deamination, this method strong shock resistance can reach the optimization of processing according to the variation of water quality working time in each stage of adjustment, makes the final national grade one discharge standard up to standard of water outlet.
Ammonia nitrogen through in the percolate behind foam separation and the coagulating sedimentation is reduced to below the 100ppm, and it is original about 1/2 that the COD value also drops to, and is about about 3000mg/L.
Effect: further remove remaining organism and total nitrogen etc. in the water, make bio-chemical effluent reach discharging standards, can make the COD in the waste water reduce to 100mg/L once through test, total nitrogen is reduced to below the 50mg/L.
Come further to confirm advance of the present invention through specific examples below.
Instance 1:
Certain refuse tip percolate, black, little turbid, water quality is COD Cr5284mgL, ammonia nitrogen 2610mgL, surface tension is 42mN/m.After earlier percolate being handled through foam separation equipment, the more former water of percolate is added The addition of C a (OH) 2 and regulate pH to 11.5, the metals ion in the flocculation sediment percolate is got supernatant after staticly settling, and its color is light brown.After this two step pre-treatment, the water quality of percolate is CODCr3128mgL, ammonia nitrogen 2179mg/L, and surface tension is 65mN/m.
Pretreated percolate gets into after little ultrafiltration and stablize the gaseous film assembly and removes ammonia nitrogen wherein, and the dilute sulphuric acid with 25% is as absorption agent, film import ammonia nitrogen 2179mg/L, and film exports ammonia nitrogen 70.1mgL, and ammonia-nitrogen removal rate is 96.78%.By product is the ammonium sulfate of 15-30%, further can be used for doing fertilizer behind the condensing crystal.
It is yellow that percolate behind the deamination is; Behind sulfuric acid adjusting pH to 7; Get into aerobic/anaerobic SBR method biochemical treatment system; Be colourless after the processing, clarification, CODCr, BOD, ammonia nitrogen, total nitrogen, total phosphorus, metal ion content etc. reach " household refuse landfill sites pollution control criterion " emission standard (GB16889-2008).
Instance 2:
Certain refuse tip percolate, black, little turbid, water quality is CODCr5314mg/L, ammonia nitrogen 3159mgL, surface tension is 42mN/m.After earlier percolate being handled through foam separation equipment, the more former water of percolate is added The addition of C a (OH) 2 and regulate pH to 11.0, the metals ion in the flocculation sediment percolate is got supernatant after staticly settling, and its color is light brown.Through after the pre-treatment, water quality is CODCr3042mg/L, ammonia nitrogen 2569mgL, and surface tension is 63mN/m.
Pretreated percolate gets into after little ultrafiltration and stablize the gaseous film assembly and removes ammonia nitrogen wherein, and the dilute sulphuric acid with 25% is as absorption agent, film import ammonia nitrogen 2569mg/L, and film exports ammonia nitrogen 35.43mg/L, and ammonia-nitrogen removal rate is 98.62%.By product is the ammonium sulfate of 15-30%, further can be used for doing fertilizer behind the condensing crystal.
Percolate behind the deamination is faint yellow; Behind sulfuric acid adjusting pH to 7; Get into aerobic/anaerobic SBR method biochemical treatment system; Be colourless after the processing, clarification, CODCr, BOD, ammonia nitrogen, total nitrogen, total phosphorus, metal ion content etc. reach " household refuse landfill sites pollution control criterion " emission standard (GB16889-2008).
Instance 3:
Certain refuse tip percolate, black, little turbid, water quality is CODCr5358mg/L, ammonia nitrogen 3156mg/L, surface tension is 40mN/m.After earlier percolate being handled through foam separation equipment, again with the former hydromining electricity consumption of this percolate flocculence electrolytic flocculation after 60 minutes, its color is light brown, and the pH value of percolate is risen between the 12-13.Through pretreated percolate water quality is CODCr2988mg/L, ammonia nitrogen 2689mg/L, and surface tension is 67mN/m.
Percolate gets into after little ultrafiltration to be stablized the gaseous film assembly and removes ammonia nitrogen wherein, and the dilute sulphuric acid with 25% is as absorption agent, film import ammonia nitrogen 2689mg/L, and film outlet ammonia nitrogen 46.98mg/L, ammonia-nitrogen removal rate is 98.25%.By product is the ammonium sulfate of 15-30%, further can be used for doing fertilizer behind the condensing crystal.
Percolate behind the deamination is faint yellow; Behind sulfuric acid adjusting pH to 7; Get into aerobic/anaerobic SBR method biochemical treatment system; Be colourless after the processing, clarification, CODCr, BOD, ammonia nitrogen, total nitrogen, total phosphorus, metal ion content etc. reach " household refuse landfill sites pollution control criterion " emission standard (GB16889-2008).
Claims (8)
1. the integrated conduct method of a percolate, it is characterized in that: step is:
⑴ foam separation pre-treatment:
Carry out at foam separating tower, the former water of percolate gets into from the foam separation top of tower, from the water outlet of foam separation tower bottom; Gas is from the ventilation of foam separator bottom, and the top goes out foam, and the flow-ratio control of gas flow and waste water is 12: 1-8: between 1;
⑵ coagulating sedimentation pre-treatment:
Carry out at coagulative precipitation tank, adopting quicklime or calcium hydroxide is coagulating agent, and consumption is the former water of 10-25kg/ ton percolate, and the coagulation stage need stir 5-15 minute, leaves standstill 1-4 hour;
⑶ micro-filtration, uf processing:
In micro-filtration, ultra-fine filter, carry out;
⑷ gaseous film separating treatment:
On the gaseous film tripping device, carry out deamination with sour absorption liquid and handle, the gaseous film tripping device comprises shell pipe type membrane module that shell pipe type membrane module that the tubular fibre microporous hydrophobic membrane makes, shell pipe type membrane module that the superpower hydrophobic membrane of tubular fibre micropore makes, the tubular fibre microporous hydrophobic membrane that has microthin coating make and the novel pipe shell type membrane modules that contain two cover tubular fibre microporous hydrophobic membranes;
⑸ biochemical treatment:
Percolate behind the employing aerobic/anaerobic SBR biochemistry pool biochemical treatment deamination.
2. the integrated conduct method of percolate according to claim 1, it is characterized in that: said step ⑴ also adopts the air supporting mode to carry out pre-treatment.
3. the integrated conduct method of percolate according to claim 1; It is characterized in that: the coagulating sedimentation pre-treatment of said step ⑵ adopts electric flocculation technique to handle; But before stablizing gaseous state embrane method ammonia nitrogen removal, need be increased to more than 11.5 with quicklime, calcium hydroxide or sodium hydroxide pH value with percolate.
4. the integrated conduct method of percolate according to claim 1 is characterized in that: < 2, said acid is any one or its mixture in sulfuric acid, phosphoric acid, hydrochloric acid, the nitric acid to the pH of the used sour absorption liquid of deamination among the said step ⑷.
5. the integrated conduct method of percolate according to claim 1, it is characterized in that: the shell pipe type membrane module that stable state air film method deamination process is used among the said step ⑷ is the shell pipe type membrane module that has the pipe core liquid distributor in the assembly.
6. according to the integrated conduct method of claim 1 or 5 described percolates, it is characterized in that: the used tubular fibre microporous hydrophobic membrane of said shell pipe type membrane module comprises two kinds of patterns, and a kind of is filling film silk in bulk in the housing; Another kind is the film silk of filling braiding in the housing.
7. the integrated conduct method of percolate according to claim 1; It is characterized in that: stablize the used film of gaseous state embrane method deamination among the said step ⑷ and be micropore, hydrophobic or super-hydrophobic hollow-fibre membrane; Mould material is one or several a mixture of Vestolen PP 7052, Vilaterm, pvdf, tetrafluoroethylene, or with the mixture of other macromolecular compound stronger than PTFE hydrophobicity.
8. the integrated conduct method of percolate according to claim 1; It is characterized in that: the material of said tubular fibre microporous hydrophobic membrane is the polymer non-polar material; Macromolecular material is one or more the mixture among PP, PE, PVDF or the PTFE, or with the mixture of super-hydrophobic macromolecular compound.
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