membrane element Articles
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Microfiltration Ceramic Membrane Element
Ceramic microfiltration membrane element is made from alumina and zirconia which is an asymmetric membrane structure with multi-channel tubular shape. The pore is on the channel. Driven by operation pressure, the liquid is running in the membrane. The part less than pore size is permeation, the part lager than pore size is concentrated liquid, so as to achieve the separation, concentration and ...
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Food - Case Study
Challenge Increasing efficiency and prolonging durability of filter elements Highest possible equipment availability during the seasonal sugar campaign Solution Refitting with LENSER membrane filter elements with application-specific design Easier cleaning through smooth and dimensionally stable surfaces Optimisation of chamber volume and cake washing through external and corner feed ...
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Mining - Case Study
Challenge The mining of deposits with low material content requires ever more powerful equipment in order to come to grips with the mass throughputs. In order to reduce the cycle times, the ancillary times have to be minimised. Only through large filter elements with at least 10sqm filter areas can the necessary chamber volume be reached. At the same time, a long membrane service life is ...
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Air/water cleaning for the control of particulate fouling
Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...
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Safe use of microbubbles for removal of RO membrane fouling
Abstract The authors have shown a dramatic improvement in cleaning efficiency when effervescent cleaning reagents are used in conjunction with bubbles created using a specially designed microbubble generator. One potential problem associated with this new technique is that the bubbles will cause damage to the delicate polyamide layer and other structures in the RO element. In order to establish ...
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SS Membrane Module
The ceramic membrane module is designed by different application. Stainless steel could be used as the material of ss membrane housing. JIUWU company could produce the extra large housing as customer demand, such as loading over 91 pcs membranes. OVER VIEW OF STAINLESS STEEL MODULE Ceramic membrane element has a variety of narrow distribution, high porosity, high capacity per unit membrane ...
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Ultrafiltration Ceramic Membrane Element
JIUWU company produces the ceramic ultrafiltration membranes with the pore size 20nm, 50nm and so on. JIUWU company offers a large choice of ceramic membranes with different geometries and cut-offs to meet your process requirements in viscosity, molecule size, impurity profile, purity and yield target, etc. as well as cleaning and sanitization procedures. OVER VIEW OF ULTRAFILTRATION CERAMIC ...
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Chemicals - Case Study
Challenge Long cake washing times and unsatisfactory results have a negative effect on the profitability of pigment production. Solution Development of membrane filter elements with customer-specific product design Targeted redesign and optimisation of filtration surfaces Modification of the filling channels and channel design in order to regulate the flow speed Configuration of filter ...
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Membrane biofouling mitigation through applying electric potential in the CF016 cell
Membrane filtration is an effective way to remove pollutants and microorganisms from water and wastewater. However, membrane fouling lowers efficiency over time when considering rejection values and water flux. Fouling is typically biological or particulate; fouling rate is a function of the membrane pore size relative to the size of the foulants and also the interactions between the membrane ...
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Performance benchmarking of polyamide composite Sea water reverse osmosis membranes
Standardization of reverse osmosis (RO) membrane system allows transparency and accountability in performance benchmarking of different membrane elements, especially when a new product is introduced to the market. In the current study, we compared performance of three polyamide composite RO membranes (one from new entrant in the market, the other two are established manufacturers) for ...
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Influence of permeation on air/water cleaning of spiral wound membrane NF/RO elements
To improve hydraulic conditions, periodic air/water cleaning (AWC) is applied to a nanofiltration (NF) spiral wound membrane (SWM) element under permeation conditions to control biofouling and particulate fouling. A pilot study was carried out for 212 days with a vertically positioned SWM element fed by tap water enriched with a biodegradable compound (60 μg acetate-C l−1). Operational parameters ...
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Role of membrane autopsy in enhancing reverse osmosis plant operation
Reverse osmosis (RO) has successfully emerged as a broadly-used commercial water purification technology in recent decades. Nevertheless, RO membrane elements, the core component of this purification process, are frequently subjected to premature degradation and performance deterioration, adversely impacting RO plant operation & maintenance. Membrane autopsy is a well-proven yet ...
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Nanofiltration Systems Sulfate Removal
Membrane filtration principle Membrane filtration technology is based on a selective filtration through a pressure-driven membrane for sulfate water treatment. The membrane has charged groups that selectively reject multivalent anions such as SO42-. The membrane does not separate monovalent ionic species such as Cl- or CLO3- from the feed solution. To maximize the membrane area within a compact ...
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Effect of draw solution type and operational mode of forward osmosis with laboratory-scale membranes and a spiral wound membrane module
Forward osmosis (FO) is a concentration driven membrane process which recently gained an increase in attention due to the development of improved FO membranes. Most of the currently available data on FO research is obtained on small laboratory-scale set-ups, thereby overlooking the effects of scaling-up to pilot or full-scale size. In this paper, FO experiments are carried out with a 10.16 cm ...
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Coca-Cola Refreshments Bottling Company Needham Heights, MA case study
The Problem: The Coca-Cola Bottling Company was operating an MBR system that was not performing to maintain the flow rate required for effluent discharge. The Membrane System had rapid flux decline and the tubular membranes were being replaced every 6 months. The Solution: BioprocessH2O supplied a bioFLOW MBR System sized and designed to reduce BOD using a bioFLOW Membrane System combined with a ...
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Short- and long-term fouling characteristics of reverse osmosis membrane at full scale leachate treatment plant
This research is focused on characterizing the foulants on a reverse osmosis (RO) membrane taken from a full-scale leachate treatment plant in Thailand. The system consists of a physico-chemical pre-treatment unit and RO system and has been in operation for 2 years. Ferric chloride (FeCl3) was added to the open-jet sedimentation tank at 2.0–2.5 g/l dosage for chemical coagulation. The supernatant ...
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Minerals - Case Study
Challenge Premature breakdown of membrane filter elements made of polypropylene due to high chlorine loads Pressure differentials and plate breakages caused by uneven chamber filling due to blocked filter channels Solution Testing and selection of new materials to prolong service life and reduce the influence of chlorine Modification of filter element design in respect to avoiding the ...
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Desalination: Looking to the future
Untitled Document Even though the volume of the earth's water is vast, less than 10 million of the 1 400 million cubic metres of water on the planet is of low salinity and suitable for use after applying conventional water treatment alone. The other 97.5% of the water on our planet is to be found in the oceans, where it is officially classified as seawater. Desalination ...
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Industrial reverse osmosis system design
Reverse osmosis (RO) is currently used in various applications ranging from small, undersink drinking water units to large industrial systems. The technology is widely used and accepted as it removes both dissolved ionic and organic impurities. This article will focus on the reverse osmosis technology in industrial applications and will discuss factors that differentiate industrial RO from ...
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HF Pure Water visits the Middle East
HF Pure Water recently participated in the Water, Energy, Technology and Environment Exhibition held in Dubai, UAE. In speaking with numerous people that visited the HF Pure Water booth, it became apparent that there were limited opportunities for waste water treatment as many manufacturers simply dumped their wastewater into the ocean. This was confirmed in a meeting held with the Dubai ...
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