membrane cleaning chemical Articles

  • Membrane chemical cleaning: from art to science

    Membrane chemical cleaning is an integral part of operation for micro- and ultrafiltration systems in the water industry and has significant impact on process operations. However, this issue has not been adequately addressed primarily for two reasons: 1) cleaning protocols are typically recommended from membrane manufacturers and some cleaners are proprietary; 2) the issues of membrane fouling ...


    By Pall Corporation

  • Membrane chemical cleaning: why is it required and how is it performed?

    Membrane fouling, defined as the accumulation of particles and organic matter at the surface or in the pores of membranes occurs during membrane filtration. Membrane fouling results in membrane performance loss, i.e. lower rejection values, lower permeate flux and higher pressure drop, which translates into higher operational cost. The extent of fouling depends on the feed quality, operating ...


    By Sterlitech Corporation

  • Enhanced membrane bioreactor process without chemical cleaning

    In membrane bioreactors (MBR) for wastewater treatment, the separation of activated sludge and treated water takes place by membrane filtration. Due to the small footprint and superior effluent quality, the number of membrane bioreactors used in wastewater treatment is rapidly increasing. A major challenge in this process is the fouling of the membranes which results in permeability decrease and ...


    By IWA Publishing

  • Extensive Solutions for Removing Arsenic from Your Drinking Water

    You may not be aware that your water supply has unsafe levels of arsenic in it. If testing proves this to be the case, you must immediately find a form of arsenic water treatment to help you have access to clean drinking water again. Arsenic is a poisonous substance that has innumerable negative health effects on humans. There are several methods of performing arsenic removal from ...

  • The Chemistry of Membrane Cleaning

    International Products Corporation (IPC), incorporated in 1923, manufactures specialty chemicals. IPC has over 30 years experience making and selling membrane cleaners and formulated lubricants to industry. IPC is the proud recipient of the 2013 Environmental Innovation award by the Suppliers Partnership for the Environment. All products are manufactured in the New Jersey headquarters and are ...

  • Biological Filtration: Future of Drinking Water Treatment

    Water is essential for all human life on the planet, but the fresh water supply is limited and is susceptible to being contaminated by all manner of toxins like arsenic, calcium, and mercury. There are many techniques to remove contaminants, including popular methods that add chemicals to balance others out, but one that not many people understand is biological water system filtration. ...

  • INNOVATIVE CHEMICALS FOR DETERIORATED RO MEMBRANES

    The new rejuvenation chemical treatment is introduced in this paper. This chemical treatment repairs the deteriorated RO membranes, and recovers the salt rejection ratio immediately. In the past, such kind of rejuvenation methods have been developed and reported only with table test basis and pilot plant test basis as seen in the IVREFERENCES ...


    By Kurita

  • Membrane cleaning skids prolong operating life of costly membrane filtration units

    Considered one of the most important and costly components of a reverse osmosis purification system, membrane filtration elements (a thin semi-permeable layer which desalinates seawater) collect mineral buildup, organic materials and bacterial agents. The Lifestream Membrane Cleaning Skid cleans, flushes out and preserves the membrane, reviving efficiency and prolonging membrane life.Designing a ...

  • Cleaning clay (aluminosilicates) from fouled membranes

    Abstract Within the lifetime of most reverse osmosis (RO) systems some fouling will adversely affect membrane performance. The major constituents of foulants found on the first position during six years of membrane autopsy at the Genesys Membrane laboratory are clay minerals chemically known as aluminosilicates. Clay is a naturally occurring material found in all RO feed waters ...

  • Chemical wastewater treatment applying a membrane bioreactor (MBR)

    IntroductionAt the current time Membrane Bioreactors (MBR) are the primary focus of wastewater treatment technologies. MBR is a combination of biological activated sludge process for the removal of nutrients and a membrane filtration for separation of biomass and treated water. In industrial wastewater treatment MBRs have proven to be a particularly reliable technique [Cornel et al., 2006]. The ...


    By MICRODYN-NADIR GmbH

  • Air bubbles enhance membrane cleaning: a future perspective

    Abstract Air bubbles generated using a novel micro-bubble generator have displayed a dramatic enhancement in cleaning efficiency when used in conjunction with specially formulated cleaning chemicals. In order to establish the effect of this application on membrane performance, a series of experiments were conducted using both a flat sheet test rig and a small scale pilot plant. ...

  • Genairclean RO membrane cleaning - Case Study

    Trial Period September 2013 to May 2014 Site Water Reuse system, UK Background A Brackish Water Reverse Osmosis (BWRO) system with a history of rapid and consistent membrane fouling was selected to trial the new ‘Genairclean’ micro-bubble multi-mechanism RO membrane cleaning method. The plant reclaims process ...

  • Fouling and cleaning of seawater reverse osmosis membranes in Kalpakkam nuclear desalination plant

    A seawater reverse osmosis plant of 1800 m³/day capacity is part of the 6300 ³/day capacity nuclear desalination demonstration project at Kalpakkam. The plant was commissioned in October 2002 and is in continuous operation. This paper deals with types of foulants, membrane cleaning procedures and the improvement in the reverse osmosis system after cleaning. This paper also describes the ...


    By Inderscience Publishers

  • Ultrasonic irradiation for ultrafiltration membrane cleaning in MBR systems: operational conditions and consequences

    Ultrasonic irradiation is one of the most promising membrane cleaning techniques for membrane bioreactors (MBRs) because of several advantages such as high flux-recovery capacity and in situ application without interrupting the filtration process. However, significant contradictions may be found and, consequently, this method has not yet been widely developed. In this paper, four MBRs ...


    By IWA Publishing

  • Microbubble RO membrane cleaning reduces fouling on WWRO plant.

    Over the last ten years there have been significant developments in new devices for energy recovery, new membrane materials, and new sizes and orientations of reverse osmosis (RO) plants, all designed to reduce costs and improve efficiency. The fundamental issue of keeping membrane surfaces clean to ensure efficient RO plant operation has seen relatively few recent developments. This is ...

  • A study of the physical and chemical damage on reverse osmosis membranes detected by autopsies

    Abstract Water treatment by reverse osmosis technology has as main aim to reject the maximum percentage of ions from raw water, giving as much treated water flow as possible. When there is a loss in these two parameters performance, it is essential to find the source of the failure, in order to use the necessary tools for its recovery. At this point, membrane autopsies are a very ...

  • Atomic force microscopy (AFM) analysis of cleaned and fouled nanofiltration membranes

    In membrane process industries, membrane cleaning is one of the most important concerns from both economical and scientific points of view. Surfaces roughness and phase angle of virgin and fouled membranes were measured and compared before and after chemical cleaning by using atomic force microscopy (AFM). Correlations between the data obtained by this technique (AFM) with the flux and rejection ...


    By Inderscience Publishers

  • Membrane Bioreactor Pilot

    The problem A company which produces a product that requires a constant supply of relatively clean water is planning to expand by adding new process units online.  The plant currently uses well water as a supply to its production.  The water production from the well is limited.  They need to install a system to produce reuse water to reduce the amount of water required ...


    By Dynatec Systems Inc.

  • Effects of various chemical cleaning conditions for pressured MF process

    A pilot-scale pressured hollow-fiber microfiltration (MF) process as pretreatment for the reverse osmosis process was studied and operated under various conditions to assess the relative influence of backwashing, chemical enhanced backwashing (CEB), and bag filter application. The pilot plant process consisted of backwashing but without the CEB or the bag filter as the first step of the ...


    By IWA Publishing

  • A clean sweep

    When properly selected and applied, oil skimmers are a highly economical solution for sepaeating oil from water to allow its reuse or safe disposal. How Oil SkimmersWorkOil skimmees are simple, dependable and effective tonis for removing oil, grease and otherhydroearbono from water and can pay for themselveo within a few months.  Ah oil skimmers rely on the fluid properties of specific ...


    By Abanaki Corporation

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