The film separates the technique and resources of waters to make use of again

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The film separates the technique and resources of waters to make use of again provenance:China Mineral WaterDate Added:2005-11-12 1. Foreword The water is a life spring, is the natural resources that the mankind are precious and can't act for, is also the life vein of the social and economic development.The short of and increasingly serious water pollution of the resources of water has become the bottleneck of the check and supervision society progress and economic development, solving this hard nut to crack, can keep on to the our country develop is very urgent of and very and important.In addition to the science management of the resources of water and excellent turn to install outside, full exertive high new science and technology means is in water again make use of function also very key. The film separates to be a high new the technique is being close to 40 in the last yearses quick the development turns into the industry of economize on energy the separation process efficiently.40 in the last yearses, the electricity , anti- permeate, tiny , super, permeate the vaporization, the film contact and films to respond the etc., the process one after another develops, in the energy, electronics, petrochemical, medicine hygiene, heavy work, light work, food, the beverage profession and realms such as people's daily life and environmental protection etc.s all acquire the extensive application, producing to show economic and social performance of the.The need of the society makes the film technique promise and livings, is also a social need to urge the quick development of the film technique, make the film technique continuously creative, progress, perfect, become the unit operation, become gather key in the process.Underneath the film technique is in water again make use of the function is as follows, JIAN3 SHU4 includes the sea water and bitter salt waters to downplay, drinking water decontamination, the groundwater is remediable, the waste water depth handles back to use with recycling, the traditional craft reforms to sweep to produce the etc. with realization, these have become society of consensus, and develop the potential very greatly, the foreground is captivating. 2.The water resources development, protection and drinking water decontamination 2.1 sea waters and bitter salt waters downplay[1,2,3,4,5,6] The 50's put forward anti- the purpose of development that permeate( RO) downplays for the sake of the sea water, anti- permeate to have become the sea water and bitter salt waters to downplay to make to take the most economic means of drinking water now, anti- in the world the water the yield of day that permeate to downplay amounts to one ten million ton, is middle east, desert region, alongside the sea and the Life Line of social and economic development in the group of islands region.Parts of islands of our country, the warship ship, the alongside the sea power station, numerous bitter salt water regions, include western region region, also use to downplay the water to solve the drinking water and industries to need urgently, can expect, near future, the northern and alongside the sea city will downplay sea water conduct and actions meet an emergency use water and complement use water. In the last few years, in international sea water downplay invite bids, the SWRO is lowest with the investment, can consume most province, the cost is lowest, constructing the period short etc. advantage but repeatedly in mark.Take the most economic method of drinking water from the sea water system, the general electricity consumes 45 kWhs/ m3 fresh waters of £s.Be use the second class RO production salinity small in the 20 mgs/ L of water, combine with ion exchange to produce the pure water, its economy also can compete with other methods of.SWRO so the ability is such successful, expand with it in the innovation of the film, a machine, equipments and craft etc. is an inseparable. At anti- permeate the film to develop the aspect, the dissymmetry film and the compound films are creative two exampleses;Anti- permeate an innovation with technical machine of film, can make the function of the film developped well, the more fundamental and hollow fiber of here is anti- to permeate the machine and a types anti- permeate the component;At the same time, the film takes off the key equipments that salt use, if the high pressure pump and energies recover to equip to also get the fast development, especially the third generation energy recovery product- pressure exchanger, it directly pass pressure from the thick sea water new sea water, the efficiency is is big in 90%, thus anti- permeate the essence that sea water downplay to consume the electricity to decline the 3 kWhs/ m3 the following;According to anti- permeate the film and a progress with technical machines, the craft of SWRO also develops constantly, in addition to a the class sea water of 80's in last century downplaying the craft, putting forward two new crafts again in recent years- The high pressure a the class sea water downplays the craft and efficiently the two pieces method craft, the further exaltation recovery rate amounts to 60%, thus the sea water prepared to handle the province, trying a dosage little, can consume much lower. 2.2 The drinking water decontamination[1,2] The pollution of the environment affects the quantity of the drinking water, the quantity of the drinking water the health of the direct influence people, but the exaltation that people live the level, to the drinking water fluid matter request more and more high, international community all at improve the drinking water system continuously fully technique, such as the MAC-21 and the new MAC-21 planses of Japan to tiny ( MF), super ( UF) and the( NF) at in addition to the germ, go to muddy, go to big member gum body, TXM, agrochemical, strange smell and parts of SO42ses-, NO3-, F-, As etc. of function carried on the thorough development and affirmations;Anti- permeate and almost can remove various miscellaneous quality ¡¡ household-use MF, UF, NF and ROs clean machine of water and bottles to pack, the bucket packs the purified water and the mineral spring etc., already very widespread in the domestic.Moreover, the electricity can take off the salt and in addition to fluorine, the electricity turn the film process and can disinfect to the water and can produce the acidity water and alkaline waters, the film contact machine( MC) can do away with the harmful material of volatility in water.So, turn the progress along with the city quickly, the film technique is the drinking water to prepare the processing and the depth processings, its function also shows the more and more, will become one of the optimization techniques of this century drinking water decontamination. 2.3 The groundwater is remediable[1] Northern region even the main city groundwater of Su, region ofis super to adopt very and seriously, result in the underground water level descend, present the funnel form to distribute, the earth crust descend, the ground falls to sink, the sea water invades to pollute the etc. with groundwater, only depend natural decline the water hard make up it lack, in addition to control mine quantity, returning dirty water or waste waters after carry on the deluxe processing to infuse is one good plan, American California waits the fulfillment enunciation of the ground, this measure is very valid.The our country is is essential and conditioned region, also should consider this problem as early as possible. 3 reform the traditional craft and carry out to sweep the production Compared with the foreign craft, many traditional industries of our country are to consume the big door of water, is also a dirty water to exhaust the big door.Use high new the technique reforms the traditional craft, lower can consume to consume with water, carrying out to sweep to produce power at go necessarily.Replace the traditional mercury cathode method and the asbestos diaphragm methods to have the NaOH and chlorine gases from the aqueous solution of NaCl system with the whole fluorine sour sour ion film electrolysis, the craft's electric current efficiency is high, can consume low, the conversion rate is high, the raw material province, the pure degree is high, free from pollution and the investment is little.Use the RO, the electricity ( ED) and electricities to replace the ion exchange in addition to the ion technique( EDI), can reduce to even remove to discard consumedly sour, the alkali exhausts and economizes a great deal of rinse, rebirth to use the water.Act for with the super and the technique of or the part act for to sink to decline and leave the heart craft traditionally, carrying on the egg white, , dyestuff, many sugar and medicines in the center body etc. purely turn concentrated, and the clearness of the juice, the tea juice and concentrated etc..Act for by permeating the vaporization( PV) or the part act for to distil traditionally, carrying on dehydrating and removing the stanza water that the jot vaporizes a ¡¡s to all show the and declining to consume the result.These technical expansion, necessarily will exertive more important function in reform traditional craft and the stanza waters reduce dirtily. 4 dirty waters, the waste water depths processings return to use with the recycling[1,7] In recent years, the our country exhausts the dirty water quantity annually about 400-50,000,000,000 m3s, through only 15-25% that the processing rear row put or so, because of the dirty water everywhere crosscurrent, make each flood of our country the departments all produce the pollution of different degree, the water environment severity depravation, so, strengthen the dirty water to manage, make it not only reached mark to exhaust, but also canned return to use in great quantities, very necessary, this pollutes to the cancellation, the improvement water environment, alleviate the shortage of the resources of water, economize the precious resources of water, and promote the development of the environmental protection industry etc.s are all very important;At the same time the economic and social performance that dirty water returns to use, and then turn over to promote and arouse the further development that the dirty water use again, thus since carried out the recycling of the dirty water, and then pushed to sweep the production. The dirty water of city mainly is constitute by the living dirty water and industrial waste water, the big body is each to have the half.Main use the concentrated living creature method( the normal regulations live and dirty mire method, A- B method, A2/0, the water solve on oxidize, SBR, oxidize the ditch etc.) processing now, make it reach the mark to exhaust.For carrying out the dirty recycling of water and sweeping the production, in addition to making the good concentration processing to exhaust the dirty water of returning to use, the dirty water of a little bit some pollution sources manages and returns to use also very important, order to pollute the source to manage since can ease concentrated burden of the processing, and then can guarantee the fluid matter of the concentration processing, sometimes can also carry out to sweep the production.Gather with the traditional craft and the film techniques, can change into dirty water or waste waters different fluid matter standard of use again the water, or make it returned to use circularly, thus since alleviated the supply antinomy, and then reduced the pollution, still promoted the environmental protection industry develop.Currently the dirty water returns to use to already work a great deal of fulfillment that industry cooling water, irrigation water and the city use the water, the economic society and the environment performances show the. Immerse to have no the type film bioreactor to life, the processing of the food and the medicine industry dirty water, make it return use;The super carries out to draw to pack the profession( especially the automobile industry and aluminums process the industry) electricity paint and pour the recovery of wash the water;Use the super processing textile industry and print to dye the industry in of back the syrup to discard the liquid and print to dye the waste water to make it return respectively up strach the system and print to dye the system to use again, the result shows the , is a more ideal processing technique;Anti- permeate to make electroplate the waste water( plate the , plate the chrome, plate the and plate with gold etc.) to carry out the to wash the water with the in valuable electroplate the medicine back to use, and the wash the water back to use, basic can carry out zero the closed circuit that exhaust circulation[9,10];The recovers the metallurgy, chemical engineering, mine for minerals etc. the profession discard sour, the alkali makes it use again, reducing the pollution biggest;Contain the greasy dirt water with the super processing, if the oil-field returns to note the water, dirty water of crude oil, emulsify the oil waste water and match a waste water of the oil...etc., is also a craft worthy of expanding strongly[8]. The dirty water comprehensive depth processing aspect[11,12,13], the dirty water processing use the film technique and can remove to suspend the particle, the cause germ, various organic, inorganic matter etc., anti- permeate the second class dirty water comprehensive depth processing, gain of different grade of reborn water can used for respectively miscellaneous use the water( fire fight, wash the car, road to face to sprinkle water the ¡¡ ), irrigation water, the building use the water, the industry cool off the water, the groundwater return to note, to go to the boiler with the water.These are on the technique and economy up is all viable.The economy, the environment performance shows the .The groundwater returns to note, since impeded the sea water to invade, and then added the underground headwaters, improving the river valley fluid matter, The dirty water of city returns to use the possibility to alleviate the city water supply shortage, the economical precious resources of water, the function that eases the water pollution and improve the environment of water shows the very much, a great deal of fulfillment proved that the dirty water returns to use and economies, the to build up of the environment consciousness and the exaltation of the living levels along with the people, return to use to request and also would be more and more high to the dirty water, because of the technical characteristics of film, progress unremittingly and handle the cost technically to descend continuously, the film technique is in the dirty water the ground that return to use the realm to even will greatly use violence from now on, exertive larger function. 5 conclusions As early as 50's, in order to solve" the crisis of the water", put forward the film to separate the technique, progress unremittingly technically along with the film is short of with resources of water increasingly serious, the film technique conduct and actions can keep on the key of the development total one of sex techniques, will be doubly value necessarily, and continue to develop and protect in the water resources, drinking water decontamination, reform the traditional industry and propulsions to sweep the production etc. aspect exertive larger function.

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