spiral reverse osmosis membrane Articles

  • Spiral-tube Reverse Osmosis Membrane for Leachate Treatment

    ST MEMBRANE INTRODUCTION ST membrane technology is a new structural membrane module specially developed for leachate and high salt wastewater treatment, which adopts spiral membrane structure, and the membrane adopts industrial anti-pollution RO membrane or NF membrane, and the grid channel adopts parallel grid structure which is different from the general spiral membrane, so that it can be used ...

  • Spiral wound electrodeionization

    Electrodeionization (EDI) is typically used in combination with RO systems to produce pure or ultrapure water, continuously and without chemicals. This combination eliminates the need for regeneration chemicals and the inherent cost, safety and inconveniences of storage, handling, treatment and discharge associated with ion exchange systems. Power plants, electronics manufacturers and ...


    By Agape Water Solutions, Inc.

  • Integrated approach for biofouling control

    Despite extensive research efforts, past and present strategies to control biofouling problems in spiral-wound nanofiltration and reverse osmosis membranes have not been successful under all circumstances. Gaining insight in the biofouling process is a first necessity. Based on recent insights, an overview is given of 12 potential complementary approaches to solve biofouling. Combinations of ...


    By IWA Publishing

  • Features of Reverse Osmosis (RO)

    1. Removal of dissolved salts Reverse osmosis can stably and effectively remove dissolved salts, dissolved organic substances (trihalomethane, its precursors, agricultural chemicals, etc.), and micro fine particles (living germs, dead germs, and many other micro fine particles) from water. Thus it is ideal for a wide area of applications ranging from production of ultra pure water to ...


    By Toray Membrane Europe

  • VSEP takes reverse osmosis where it has never been before, further concentrating RO reject (brine) streams to increase overally recovery to 99%.

    Conventional spiral wound membrane systems using reverse osmosis or nano-filtration membranes are increasingly being used to treat well water from underground sources to supplement local drinking water supplies. Many of the remaining underground water sources are 'Brackish' water sources where the dissolved solids can be 5,000 mg/L or even higher. One of the difficult engineering aspects of ...


    By New Logic Research, Inc.

  • STRO Leachate Treatment Membrane

    ST membrane technology is a new structural membrane module specially developed for leachate and high salt wastewater treatment, which adopts spiral membrane structure, and the membrane adopts industrial anti-pollution RO membrane or NF membrane, and the grid channel adopts parallel grid structure which is different from the general spiral membrane, so that it can be used for long-term stable ...

  • Effect of pH level and acid type on total ammoniacal nitrogen (TAN) retention and fouling of reverse osmosis membranes processing swine wastewater

    Wastewaters fed to reverse osmosis (RO) membranes sometimes need to be acidified to prevent inorganic fouling and increase total ammoniacal nitrogen (TAN) retention. In this project, the effect of pH level (6.5–7.1) and acid type (HCl vs. H2SO4) on membrane fouling and cleaning as well as permeate flux and quality during the processing of swine wastewater with a spiral-wound RO membrane was ...


    By IWA Publishing

  • Membrane technology applied to acid mine drainage from copper mining

    The objective of this study is to evaluate the treatment of high-strength acid mine drainage (AMD) from copper mining by nanofiltration (NF) and reverse osmosis (RO) at pilot scale. The performances of two commercial spiral-wound membranes – NF99 and RO98pHt, both from Alfa Laval – were compared. The effects of pressure and feed flow on ion rejection and permeate flux were evaluated. The ...


    By IWA Publishing

  • Comparison of plate and frame and spiral wound EDI Part 2

    Part 1 of this series compared spiral-wound electrodeionization(EDI) with more traditional plate-and-frame EDI. The plate-and-frame design is similar in construction to a plate heat exchanger with multiple fluid chambers sandwiched between a set of endplates (and electrodes). Within there are a series of cation and anion ion-exchange (IX) membranes. The spiral-wound design uses a pressure vessel ...


    By Agape Water Solutions, Inc.

  • 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 ...


    By IWA Publishing

  • What kind of service Jiarong provide?

    Jiarong- headquartered in Xiamen, China- was founded in 2005. We are a specialist in industrial membrane separation process. The core technology of Jiarong includes Disk-tube RO membrane system, Spiral-tube RO membrane system, Tubular UF membrane system and Micro-tube NF/RO membrane system etc. The main application fields cover leachate treatment, difficult wastewater treatment, flue gas ...

  • 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 ...


    By IWA Publishing

  • Shanghai Laogang Leachate Treatmeng Plant

    Shanghai Laogang landfill site is the biggest landfill site in China even in the whole world, its daily waste treatment capacity is over 10 thousand tons, Jiarong Technology has provided two sets of wastewater treatment system (DTRO+STRO) to this site, the processing capacity are 800tons/d and 200tons/d.We are a specialist in industrial membrane separation process. The core technology of Jiarong ...

  • Henan Shangqiu Landfill Leachate Treatment Project

    Capacity: 300m³/d Process: Containerized Leachate Treatment Equipment, 2 stages of DTRO Influent water quality: NH4+-N≤2500mg/L, TN≤3000mg/L, COD≤10000mg/L Effluent water quality meets the discharge standard. Jiarong- headquartered in Xiamen, China- was founded in 2005. We are a specialist in industrial membrane separation process. The core technology of Jiarong includes ...

  • Henan Luohe Leachate Treatment Project

    Capacity:200m³/d, containerized leachate Treatment Equipment(2 stage DTRO) Jiarong- headquartered in Xiamen, China- was founded in 2005. We are a specialist in industrial membrane separation process. The core technology of Jiarong includes Disk-tube RO membrane system, Spiral-tube RO membrane system, Tubular UF membrane system and Micro-tube NF/RO membrane system etc. The main application ...

  • Sheqi Leachate Treatment Project in Henan

    Capacity:100m³/d, containerized leachate Treatment Equipment(2 stages DTRO)Jiarong- headquartered in Xiamen, China- was founded in 2005. We are a specialist in industrial membrane separation process. The core technology of Jiarong includes Disk-tube RO membrane system, Spiral-tube RO membrane system, Tubular UF membrane system and Micro-tube NF/RO membrane system etc. The main application fields ...

  • Shenzhen Waste Incineration Power Plant Leachate Treatment

    Application: Landfill Leachate Scale: 1800 tons / day Process: Jiarong tubular membraneINTRODUCTIONProcessing scale: 1800 tons/day Treatment of sewage: landfill leachate Membrane type: M-C200-VFU100-08-3m The number of membranes used: 50 PCS Design membrane flux: > 65LMH Date of Completion: 2013We are a specialist in industrial membrane separation process. The core technology of Jiarong ...

  • Experiences with the seawater reverse osmosis plant at the Kudankulam nuclear power plant

    The Seawater Reverse Osmosis Plant (SWROP) of the Kudankulam nuclear power plant is located at Anuvijay township, Chettikulam, Tirunelveli District, Tamil Nadu. The objective is to produce 2400 M³ of potable water per day. The plant consists of four streams, each having a capacity of 25 M³/h. Each stream has nine pressure tubes in parallel and each pressure tube has six polyamide spiral-wound ...


    By Inderscience Publishers

  • Permeability decline in nanofiltration/reverse osmosis membranes fed with municipal wastewater treated by a membrane bioreactor

    Decline in the permeability in nanofiltration (NF)/reverse osmosis (RO) membranes that filtered effluents from a membrane bioreactor (MBR) treating municipal wastewater was investigated in this study. Four different 2-inch spiral-wound NF/RO membrane elements were continuously operated for 40 days. The results showed that the amount of deposits on the membrane surface did not affect the degree ...


    By IWA Publishing

  • 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 ...


    By Agape Water Solutions, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you