
[材] 反滲透膜;逆滲透膜
To describe complete process of chemical cleaning to heavily-polluted reverse osmosis membrane. The most effective cleaning agent and the best condition were selected.
叙述嚴重污染的反滲透膜的化學清洗全過程。提出了各清洗步驟的最有效清洗藥劑和最佳清洗條件。
And discussed the pretreatment of reverse osmosis membrane technology, reverse osmosis membrane fouling and cleaning of reverse osmosis technology and prospects for development.
并讨論了反滲透膜技術的預處理、反滲透膜污染及清洗和反滲透技術的發展前景。
And the agents used for reverse osmosis membrane are researched by reverse osmosis equipment assembled in laboratory and reverse osmosis device on site, so that some rules are found out.
并且通過實驗室組裝的反滲透設備和現場反滲透裝置對這些反滲透膜用藥劑進行了研究并找出了一些規律。
The experiment results show that the ability of removing fluorine by reverse osmosis is related to the bore of reverse osmosis membrane.
反滲透方法之所以能夠去除氟離子是由于反滲透膜孔徑小于氟離子直徑所緻。
The process of reverse osmosis membrane used for the reverse osmosis semipermeable membrane.
反滲透過程所使用的半透膜為反滲透膜。
By conducting ozone pre-treatment, less strain is put on the reverse osmosis membrane, thus expanding it life.
通過臭氧預處理,減輕了反滲透膜壓力,延長了使用壽命。
The possibility of poly(sulfonamido)amide (PSAA) as a new reverse osmosis membrane material with anti-oxidation properties was preliminary stu***d.
對聚亞磺酰氨基酰胺(PSAA)作為新型抗氧化反滲透膜材料的可能性,以及聚合條件和成膜條件對膜性能的影響作了初步研究。
Finally, give several suggestions according to the research situation of reverse osmosis membrane.
最後針對國内反滲透膜的研究現狀,提出了幾點建議。
A new casting technology of PSA reverse osmosis membrane different from the conventional ones was shown and explained.
提出了區别于傳統的PSA反滲透膜成膜工藝的一種新工藝,即用室溫蒸發和熱處理步驟的成膜工藝。
More preferably, an ionic polymer other than PVAs is further adhered to the resultant reverse osmosis membrane.
進一步優選在上述反滲透膜上進一步附着PVA以外的離子性高分子。
The reverse osmosis membrane has a polyvinyl alcohol adherent thereto, and is characterized in that the polyvinyl alcohol is an ionic polyvinyl alcohol.
上述反滲透膜是附着有聚乙烯醇的反滲透膜,其特征在于,該聚乙烯醇為離子性聚乙烯醇。
In addition, a lye-feeding device and a middle water tank are arranged between the water outlet of the primary reverse osmosis membrane and the water inlet of the secondary high-pressure pump.
另外還在一級反滲透膜處理水出口與二級高壓泵進水口之間設置了加堿液裝置和中間水箱。
Now membrane ultrafiltration membrane treatment technologies, nano-filtration membrane and reverse osmosis membrane.
現在膜處理技術主要有超濾膜,納米濾膜和反滲透膜。
The U. S. dow reverse osmosis membrane, Harbin dow reverse osmosis membrane, Harbin dow ultrafiltration membrane, Harbin northeast level agents!
哈爾濱陶氏反滲透膜,哈爾濱陶氏超濾膜,哈爾濱東北地區一級代理商!
Summarizes the polymerization of monomer and polymerization conditions on the reverse osmosis membrane structure, morphology and properties of the law.
總結了聚合單體、聚合條件對反滲透膜結構、形态和性能的影響規律。
The method of hydrophilizing a reverse osmosis membrane is characterized by bringing an ionic polyvinyl alcohol into contact with the reverse osmosis membrane.
上述反滲透膜的親水化處理方法的特征在于,使反滲透膜與離子性聚乙烯醇接觸。
Practice shows that NTR-759 is a reverse osmosis membrane with excellent performance and can be used for ultrapure water production.
實際應用表明,NTR-759是一種性能良好的反滲透複合膜,可廣泛應用于高純水的制備。
The development of reverse osmosis membrane has been reviewed. The type of membrane module, material of preparing hollow fiber membrane and the research institution are introduced.
本文綜述了國内外反滲透膜的研究進展,介紹了膜組件的類型、制備中空纖維膜的材料以及研究機構;
Multi-stage reverse osmosis unit includes high-pressure pump, reverse osmosis membrane element, membrane housing (pressure vessel), frame and so on.
反滲透裝置主要包括多級高壓泵、反滲透膜元件、膜殼(壓力容器)、支架等組成。
Water will be reverse osmosis membrane module desalination.
原水将被反滲透膜組件脫鹽。
Hyde's U. S. CPA series reverse osmosis membrane elements for its excellent performance, has become brackish water desalination reverse osmosis membrane element manufacturing standards.
美國海德能公司的CPA系列反滲透膜元件以其優異的性能,已成為苦鹹水淡化反滲透膜元件的制造标準。
Separation purification purposes. Reverse Osmosis membrane separation technology, can effectively remove the water ions, inorganic, colloidal particles, bacteria and organic substances.
反滲透設備應用膜分離技術,能有效地去除水中的帶電離子、無機物、膠體微粒、細菌及有機物質等。
CPA series of low pressure reverse osmosis membrane element including two 8-inch membrane components (CPA2, CPA3-LD) and a 4-inch membrane components (CPA2-4040).
CPA系列低壓反滲透膜元件主要包括兩種8英寸膜元件(CPA2、CPA3-LD)和一種4英寸膜元件(CPA2-4040)。
The use of three-phase interfacial polymerization can be prepared by a relatively smooth surface of high-desalination, high water flux of the new composite reverse osmosis membrane.
采用三相界面聚合法能夠制備出表面相對光滑的高脫鹽、高水通量的新型複合型反滲透膜。
The reverse osmosis membrane device is provided with this reverse osmosis membrane.
上述反滲透膜裝置具有該反滲透膜。
Among the sea water desalination devices are purification equipment using a reverse osmosis membrane which is low cost and energy saving.
下面是設備用于脫鹽的使用方法。在海水脫鹽設備中有淨化裝置,該裝置使用了低成本、節能的反滲透膜。
The U. S. dow RO reverse osmosis membrane, Harbin dow reverse osmosis membrane wholesale, in the northeast region level agents!
美國陶氏RO反滲透膜,哈爾濱陶氏反滲透膜批發,東北地區一級代理商!
The spiral-wound reverse osmosis membrane elements with iLEC interlocking endcaps show stable performance and very good cleaning…
端面自鎖連接卷式反滲透膜組件在嚴重污染的進水水質條件下性能穩定,具有很好的清洗恢複性能。
They will provide complete reverse osmosis membrane manufacturing including a rigorous equipment training course with total documentation, manuals, procedures, maintenance schedules, etc.
公司還提供完整的反滲透薄膜生産包括嚴格的設備培訓課程,如所有文件、使用手冊、程式、維修方案等。
Reverse osmosis membrane(反滲透膜)是一種利用逆滲透原理進行水處理的半透膜。它通過在進水側施加高壓(高于溶液滲透壓),迫使水分子克服自然滲透壓反向穿過膜層,而溶解性鹽類、有機物、細菌等污染物則被截留在膜表面或濃水側,從而實現高效分離純化。其核心特征包括:
分離機制
反滲透膜孔徑約0.1納米,僅允許水分子通過,而離子(如Na⁺、Cl⁻)和分子量>100 Da的有機物被選擇性截留。該過程依賴壓力驅動,無需加熱或化學反應,屬于物理分離技術。
參考:美國環境保護署(EPA)《飲用水處理技術手冊》
膜材料與結構
主流材質為聚酰胺複合膜(TFC),由三層構成:
參考:國際脫鹽協會(IDA)技術報告
飲用水淨化
去除水中重金屬(砷、鉛)、硝酸鹽、微生物等,符合WHO飲用水标準。
案例:新加坡新生水項目(NEWater)采用RO膜回收污水,占比達40%飲用水供應
參考:新加坡公用事業局(PUB)官網
工業水處理
參考:《膜科學與技術》期刊(Elsevier)
優勢 | 挑戰 |
---|---|
脫鹽率>99% | 能耗較高(需高壓泵) |
無化學添加劑 | 膜污染需定期清洗 |
模塊化設計易擴容 | 濃水排放需處理 |
數據來源:國際水協會(IWA)《反滲透系統設計指南》
參考:美國國家科學院院刊(PNAS)2023年膜技術綜述
關鍵提示:反滲透膜性能受進水水質(SDI值、餘氯)、操作壓力(15–20 bar)及溫度影響,需配套預處理(如超濾、活性炭過濾)保障穩定運行。
反滲透膜(Reverse Osmosis Membrane)是一種用于水處理的關鍵分離材料,其原理和應用可通過以下方面解釋:
反滲透膜是一種具有選擇性分離功能的半透膜,能夠允許水分子在壓力驅動下透過,同時截留溶解鹽、有機物、重金屬等雜質。其英文名稱"Reverse Osmosis"源于對自然滲透現象的逆向操作。
使用壽命通常為2-5年,受水質、操作壓力、污染類型(如結垢、生物污染等)影響顯著。需定期清洗維護以保持通量和脫鹽率。
如需更詳細技術參數或具體應用案例,可參考、3、5等來源。
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