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超滤设备及膜应用

2011-02-20 15:09:14 成都优越 cdyy.cc

超滤设备及膜应用

超滤膜是介于微滤和纳滤之间的一种膜过滤,适用于物质分离、浓缩和提纯的一种膜分离技术。它在实际应用中一般以截留分子量表征,只要用于将溶液中的大分子、胶体和微粒与溶剂等小分子物质进行分离。使大分子、胶体和微粒等被截留于膜表面,由物质循环流动带走而成了浓缩液,达到物质分离、浓缩和提纯的目的。超滤装置的应用领域主要涉及食品、饮料、生物医药、精细化工、工业废水处理与回用等。

超滤膜技术

在我国,超滤技术的应用在果汁澄清工艺中已占有主导地位。新压榨出的果汁中含有果胶、果肉碎屑、淀粉、蛋白、固体悬浮物、微生物代谢等多种致使果汁浑浊的物质。
采用超滤对果汁进行澄清,可使其中的糖类、有机酸和水等小分子透过膜,而截留其中多数大分子物质,得到澄清无菌的果汁;超滤过程无须助滤剂;工艺过程短,人工费用低;是较为经济有效的果汁澄清方法
工业生产的酶制剂一般要进行分离提纯,传统真空蒸发、溶剂萃取等方法存在着诸多弊端。
现在采用超滤技术进行酶制剂的分离浓缩,则可在常温下操作,克服热对发酵制剂产品品质的影响;除去其中的小分子杂质,保证滤液的纯净度和品质的良好性;过滤过程无相变,能耗和成本较传统方法都低;设备运行简便,易于操作和控制,因而很快成为了生物制药等行业分离浓缩工艺的首选。

应用领域:
*乳品、果汁、蔬菜汁澄清、浓缩
*动、植物(芦荟、罗汉果、茶叶等)有效成份提取
*大豆蛋白、低聚糖、异黄酮等提取、浓缩
*抗生素、氨基酸、VC及其他发酵液纯化、浓缩
*中药(柴胡、丹参、黄芩等)注射液有效成分纯化、分离
*医用纯水除菌、除热原,药物浓缩分离;
*多糖类(灵芝、灰树花、香菇等)物质纯化、浓缩
*荧光增白剂脱盐、浓缩
*电泳漆回收和清水回用
*纺织退浆废液中PVA回用,纤维加工油剂的回收,洗毛废水中回收羊毛脂。
*半导体工业超纯水、集成电路清洗用水终端处理;
*水处理工程:矿泉水制备,饮用水净化,以及超滤作为反渗透的预处理;
*废水处理工程;工业废水处理,市政废水的处理回用;

Ultrafiltration film is a film filtering between micro-filltering and nanometer-filter,which is applied to separation and pureificaition of substance.its token is that withhold amount of molecele while it is mainly used to separate macromoleclue,colloid and micro molecule substance such as mote solvent in liquor,which make macromolecule,colloid and mote etc withhold on the film serface; then substance cycle to flow to form concentration liquid and fine chemicals and treatment and reclaim to use of waste water.
Application of ultrafiltration technogy possesses the leading status in the fruit juice clarification technology at home.The fruit juice,metabolizing of microbe, which make fruit juice turbidness.

Method that adopt ultrafiltration to clarify for fruit juice can make micro molecule such as sugar,organic acid and water permeate film to withhold most macromelecule substance of fruit juice to obtain fruit  juice clarified and sterilized.Aid filtering agent isn't used in the ultrafiltration course with short process and low manual cost,which is the economic and effcient method of fruit juice clarifacation.

Enzyme preparation of industry manufacture is usually separated and purified.There are many shorcomings in traditional method vacuum evaporation and sollvent extrction.nowadays it adopt ultrafiltration technology to separate and concentrate enzyme preparations,which can be operated with normal temperature to conquer the effect that product quality of ferment prearations is changed due to heat; it exclude impurity of micro moleclue in the enzyme prepayation to ensure the pureness of filtering liquid and good performance of quality;no phase transformation during filtering course,low cost and energy consumption comparaed with traditional method;equipment is easily operted and controlled with convenient running.so it quichly become the first choice of separation and concentration technology for industry of biology and medicine.

Field applied:
*clarification and concentration of dairy,fruit juice,vegetable juice etc;
*extraction of available ingredient of animal and plant(aloe,grosvenor momordica,tea etc);
*extraction and concentration of soy protein,oligosacharide,isoflavone;
*purification concentration of antibiotic,amino acid,VC and other ferment liquid;
*purfication and separation of available ingredient of injection of chinesetraditional medicine(bupleurum chinese thorowax radix bupleuri,root of red-rooted asliva,root of large-flowered skullcap etc);
*medical pure water to sterilize,to remove pyrogen;concentration and separtion of medicament;
*desalting and concentration of amylose substance(glossy ganoderma,polyurious frondosus,mushroom etc);
*desalting of electrophoreisi paint and recycling of eau douce;
*recycling of PVA of waste liquid for weaving deszingrecycling of processing oil and agent for fiber,lanolin recycling of waste water for washing hair;
*super-pure water of semi-conductor industry,terminal treatment of cleanout water of IC;
*water treatment project:mineral water preparation,drinking water cleanse,super-filtering as pretreatment of reverse osmosis;
*waste water disposal project:industry water disposal,disposal and recycling of municipal waste water.

 

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