biofilm matrix Articles

  • Biofilm Processes

    The biofilm process is a process which uses a biofilm for the purposes of filtration, bioremediation or barrier formation. A biofilm is a complex and heterogeneous matrix of microorganisms attatched to and growing on a surface. Biofilms are most often found on solid substrates that are exposed ...


    By IWA Publishing

  • TEP and biofilm fouling on membranes

    Summary Biological fouling on membranes is a major problem in desalination and water purification plants. Oceanographers and limnologists have found that most marine and fresh waters are full of microscopic Transparent Exopolymer Particles, otherwise known as TEP. In this article, aquatic microbiologist Tom Berman and Filtration Specialist Marina Holenberg (Amiad Filtration Systems, Amiad, ...

  • Multifunctional magnetic nanoparticles for orthopedic and biofilm infections

    Bone related infectious diseases (including osteomyelitis and prosthesis infection) are of great concern to the medical world. These types of deep tissue infections involve biofilms and are frequently chronic and always painful. Biofilms are infections whereby bacteria form a robust colony protected by a sticky slime matrix from the body's immune system (or natural clearance) and are resistant to ...


    By Inderscience Publishers

  • From biofilm ecology to reactors: a focused review

    Biofilms are complex biostructures that appear on all surfaces that are regularly in contact with water. They are structurally complex, dynamic systems with attributes of primordial multicellular organisms and multifaceted ecosystems. The presence of biofilms may have a negative impact on the performance of various systems, but they can also be used beneficially for the treatment of water ...


    By IWA Publishing

  • Effect of biofilm on colloid attachment in saturated porous media

    Biofilm plays an important role in controlling the transport of colloids in a porous media. Biofilms are formed when micro-organisms come in contact with substrates, and are able to attach and grow with availability of nutrients. The microorganisms get embedded in a matrix of the substrate and extracellular polymeric substances which are responsible for the morphology, physico-chemical ...


    By IWA Publishing

  • An experimentally validated immersed boundary model of fluid–biofilm interaction

    Biofllms are colonies of microorganisms that live on wetted surfaces in a matrix consisting of polysaccharides, proteins, and nucleic acids. According to the National Institute of Health (NIH), biofilms play a role in over 80 percent of microbial infections in the body and these infections are remarkably difficult to treat with antimicrobial compounds. The objective here is to understand and ...


    By IWA Publishing

  • Don`t fall foul of biofilm through high TEP levels

    Biological fouling caused by the growth of biofilm on Reverse Osmosis (RO) and nanofiltration (NF) membranes can be amajor problem in desalination and water purification plants. Biofilm development lowers filtration efficiency and eventually the membranes must be replaced. Biofilm is usually made up of layers of assorted microbial populations, mostly bacteria,held together in a sticky matrix of ...

  • Contribution of hydrodynamic characteristics on the performance of an aerobic biofilm conical fluidized bed

    The performance of a conical fluidized bed (TFB) bioreactor, including the biofilm thickness, microbial space density, microbial cell matrix and its efficiency for COD degradation at a bed expansion ratio of 14 to 90%, was studied and compared with a cylindrical fluidized bed (CFB) bioreactor. The hydrodynamic characteristics of the TFB, especially the internal-circulation of bioparticles ...


    By IWA Publishing

  • Numerical simulation of wrinkle morphology formation and the evolution of different Bacillus subtilis biofilms

    Wrinkle morphology is a distinctive phenomenon observed in mature biofilms that are produced by a great number of bacteria. The wrinkle pattern depends on the mechanical properties of the agar substrate and the biofilm itself, governed by the extracellular matrix (ECM). Here we study the macroscopic structures and the evolution of Bacillus subtilis biofilm wrinkles using the commercial finite ...


    By IWA Publishing

  • Transparent Exopolymer Particles (TEP): an overlooked factor in the process of BIOFILM FORMATION in aquatic environments

    AbstractWe hypothesize that transparent exopolymer particles (TEP), present in high concentrations in most sea and freshwaters, are critical agents for biofilm initiation and development in many natural and anthropogenic aquatic environments. These gel-like particles appear in many forms, amorphous blobs, clouds, sheets, filaments or clumps ranging in size from ~2 to ~200 µm. TEP are mostly ...

  • Fouling with aerobic granule membrane bioreactor

    Aerobic granulation (AG) and membrane bioreactor (MBR) are two promising, novel environmental biotechnological processes that draw interest of researchers working in the area of biological wastewater treatment. Membrane fouling in the combined aerobic granular membrane bioreactor (AGMBR) process and the conventional MBR process was investigated in this work. The irreversible fouling on ...


    By IWA Publishing

  • Mitigation of marine biofouling on tubes of open rack vaporizers using electromagnetic fields

    This study quantitatively evaluates the antifouling action of the continuous physical treatment with electromagnetic fields (EMFs) of seawater used as heat exchanger fluid in an open rack vaporizer (ORV) pilot plant to reduce the growth of biofouling on external rib-tube surfaces. The results demonstrate that the biofilm adhered on the treated rib-tubes was reduced by 33% in thickness and by ...


    By IWA Publishing

  • Floating treatment wetlands for domestic wastewater treatment

    Floating islands are a form of treatment wetland characterized by a mat of synthetic matrix at the water surface into which macrophytes can be planted and through which water passes. We evaluated two matrix materials for treating domestic wastewater, recycled plastic and recycled carpet fibers, for chemical oxygen demand (COD) and nitrogen removal. These materials were compared to pea gravel or ...


    By IWA Publishing

  • Are Probiotics The Future Of Cleaning?

    Given the choice between a cleaner that reduces germs by 86% and one that all but eliminates them at 99.9%, which one would you choose? If you’re like most people, the answer appears simple – get rid of as many germs as possible. But those nearly 100% effective cleaners aren’t necessarily the best choice. Why? Because they kill all germs, good and bad. Probiotics are ...


    By Better Air LLC

  • Integrative assessment of selenium speciation, biogeochemistry and distribution in a northern coldwater ecosystem

    For the past decade, considerable research has been conducted at a series of small lakes receiving treated liquid effluent containing elevated selenium (Se) from the Key Lake uranium milling operation in northern Saskatchewan, Canada. Several studies related to this site, including field collections of water, sediment, and biota (biofilm/periphyton, invertebrates, fish, and birds), ...


    By John Wiley & Sons, Ltd.

  • Legionella

    Nomenclature Legionnaires' disease a pneumonia caused by any serogroup or sub-group of Legionella pneumophila Legionella pneumonia a pneumonia caused by any species of Legionella Pontiac Fever an acute, self-limiting, “flu-like” illness caused by certain species of Legionella Legionellosis any human ...

  • Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study

    A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...


    By Cleveland Biotech Ltd.

  • Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study

    A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...


    By Cleveland Biotech Ltd.

  • World’s largest compressible media filtration plant eliminates combined sewer overflows, with potential for dry-weather use

    The City of Springfield, Ohio, recently opened its 100 MGD enhanced high-rate treatment facility, designed to treat and disinfect combined high-volume stormwater and wastewater flows generated by wet-weather conditions. Utilizing EPA-documented Compressible Media Filtration technology – FlexFilter™ from WesTech – the system can also provide tertiary filtration and disinfection ...


    By WesTech Engineering, Inc.

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