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 Wysłany: Pon 0:33, 20 Gru 2010 Temat postu: air jordans Ultrafilter membrane fouling control a |
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Ultrafilter membrane fouling control and treatment
In addition. This method of almost all soft debris removal, but the hard scale is not only difficult to remove, and easy to damage the membrane surface. Therefore, the method is particularly suitable as the main component of organic pollution of colloidal membrane surface cleaning. 3.1.6 steam sterilization steam sterilization can be used for inorganic membrane and polysulfone membrane. 3.2 Chemical cleaning methods 【* a -. -J Ultra-filter cleaning chemical cleaning agent used in type, usually used with the same reverse osmosis device. However, the specific choice, should be based on the type and extent of pollution,[link widoczny dla zalogowanych], physical and chemical properties of films to choose and determine the cleaning agent. Cleaning agent can be used alone, but more complex use cases. For example, a major component of dirt is inorganic substances such as scale, iron, aluminum, etc., you can use acids,[link widoczny dla zalogowanych], chelating agents, nonionic surfactant and dispersant compound formula. If the dirt is mainly organic dirt,[link widoczny dla zalogowanych], including the sticky mud and oil,[link widoczny dla zalogowanych], are usually anionic or non-promoter from _ surfactants, bases, oxidizing or reducing agent, dispersant and detergent enzyme complex formula. Membrane Science and Technology, Volume 17 commonly used chemical cleaning fluid, such as: to inorganic contamination by: (1) citric acid 2% + TRITONx a 1000.1% + RO water 97.9%, ammonia, pH adjusted to 3; ( 2) Citric acid 2% +39% EDTA Na 2% + RO 96% water, ammonia regulation DH 4; (3), sodium tripolyphosphate 2% q-TRITONx a 1000.1% q-39% EDTA Na 2 % + R0 95.9% water, sulfuric acid pH to 7.5 that section: (4), hydrochloric acid or citric acid that section of RO water to pH: 4. To organic pollution by: (1) 1% aqueous solution of enzyme detergent; (2) 3o% 020.5L + 12 【J. deionized water To bacteria, microbes use: (1) sodium hypochlorite solution, 5-10mg / L, pH adjusted to 5 with the s04 6 (aromatic polyamide membranes were treated with 1% formaldehyde solution); (2) 1% ~ 2% O2 solution. To a strong gel with: (1) high concentration of salt; (2) with enzyme wash Jing. References with Ruihai, Wang Zhong. Purity bearing technology. Beijing: Science Press, 1988186 ~ 196 Xuehuai De. UF law introduced (b 7, Membrane Science and Technology .1992.12 (17:6468 LIU Shuang into new wastewater treatment technology. Beijing: Ocean Press .1985 l112 Zhu Changle, agent Mo E. High from the band, and so on. Membrane science and technology . Hangzhou: Zhejiang University Press, 1992.247231 Chen Changjun. polymer membranes causes performance degradation and countermeasures. Water Purification Technology .1989 (47:6 ~ 10, Mo-e Liu Mechanism of membrane fouling. Order Processing .1989. 15 (3): 163 ~ 168 Xuehuai De. ultrafiltration membrane method briefly (c) Membrane Science and Technology, 1992,12 (27:60-64 Gao Yuan, Ye Lingbi. membrane separation technology base. Beijing: Science Press, 1989.286294 chemical technology lab. polysulfone hollow fiber filter properties of a super. Tianjin Institute of Textile Technology, 1984 (1): 2021 Liu Ting win. ultrafiltration development of the main problems. Order Processing .1988,14 (47:1962 ∞ Ai Ren Qian, pull Zhiqin. ultrafiltration device bearing roll Regeneration Behaviors of washing. Order Processing,[link widoczny dla zalogowanych], 1986,12 (47:191192 dark column. Order processing chemical cleaning technology net bearing technology, 1988 (3) :1-4ControllingandtreatingofmembranefoulinginUFdeviceZhuShingle '(HuzhouWaterTreatmentEqlliprnenlFactory, Huzhou313000) AbstractTheproblemswhichoftenhappenedwhntheUFdevicewasused.andthereasoningoftheseproblemsWeredescribed.TheohysiealandchemicalmethodsforcontrollingandtreatingtheUFmem-brahefoulingWerealsodiscussed.KeywordsUFdeviceUFmembraneeoneexttratmilarizalionmembranefouling123456789mn buildings
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