biofilm growing Articles

  • A biofilm microreactor system for simultaneous electrochemical and nuclear magnetic resonance techniques

    Nuclear magnetic resonance (NMR) techniques are ideally suited for the study of biofilms and for probing their microenvironments because these techniques allow for noninvasive interrogation and in situ monitoring with high resolution. By combining NMR with simultaneous electrochemical techniques, it is possible to sustain and study live biofilms respiring on electrodes. Here, we ...


    By IWA Publishing

  • The role of innovative technologies in achieving energy-neutral wastewater treatment

    A new flowsheet is proposed to achieve energy-neutral wastewater treatment (even better, electricity-neutral) while removing nitrogen using the proven nitrification-denitrification metabolic pathway. It is compatible with solid-liquid separation by conventional clarification or membrane filtration. The new flowsheet is based on a hybrid membrane-aerated biofilm reactor process which uses ...


    By IWA Publishing

  • BioSense a Biofilm Monitor and Controller

    Abstract Biofilms (slime) can form on virtually every nonshedding surface, in a nonsterile aqueous environment i.e. anywhere where a water source is present; such as cooling/heating systems, swimming areas and in drinking water purification. These Biofilms can cause a myriad of problems including; harbouring harmful bacteria such as Legionella, inducing corrosion, and ...


    By Sensara, SL

  • Nitrification processes in scrubbing liquid of an exhaust air treatment system of a large-scale pig housing facility

    The use of multi-staged exhaust air treatment systems is an effective method of substantially reducing the emission of ammonia, dust particles and odorous substances. Wet filter walls are able to absorb large amounts of ammonia when scrubbing fluid containing sulphuric acid is used. In addition, due to their large surface areas and the permanent supply of oxygen and nutrients, wet filter walls ...


    By IWA Publishing

  • Quantification of kinetic parameters for heterotrophic bacteria via respirometry in a hybrid reactor

    Over the last decade new technologies are emerging even more for wastewater treatment. Among the new technologies, a recent possible solution regards Moving Bed Biofilm Reactors (MBBRs) that represent an effective alternative to conventional processes. More specifically such systems consist in the introduction of plastic elements inside the aerobic reactor as carrier material for the growth of ...


    By IWA Publishing

  • Three stages MBR (methanogenic, aerobic biofilm and membrane filtration) for the treatment of low-strength wastewaters

    The use of a new three stages MBR process with a first methanogenic UASB stage, a second stage with aerobic biofilm growing on small carrier elements maintained in suspension and third stage with membrane filtration module is presented. The objective of the first methanogenic chamber is to diminish COD of the raw wastewater, producing a biogas rich in methane, and decrease the sludge production. ...


    By IWA Publishing

  • 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

  • Biofilm Control for Industrial Waters

    Industrial operations can face a number of serious problems due to bacterial Biofilms growing in process water systems and cooling tower waters. Biofilm-induced corrosion, mechanical blockages and impedance of heat transfer processes result in huge monetary losses each year. In engineered systems, additional risks of biofilm-mediated contamination include negative public health consequences and ...

  • Biofiltration of Ethanol Emissions from Bakery Operations

    The management of volatile organic compounds in bakery exhaust gases was identified as a high priority problem by the American Bakers Association in conjunction with their member companies. Biotrickling filter technology was evaluated among other approaches and was selected for a pilot study to control ethanol emissions from a bakery oven exhaust gas stream. Biofilters and biotrickling filters ...


    By PRD Tech, Inc.

  • German research underway on trickling filter practices

    Trickling filter technology is one focus of a joint research project – EXPOVAL – funded by the German government that will validate engineering guidelines and optimum conditions for achieving high performance. Dr. Christian-Dominik Henrich of GEA 2H Water Technologies Gmbh reports. Poor wastewater treatment is one of the biggest enemies of a safe and sustainable water ...

  • Mortality from selected diseases that can be transmitted by water – United States, 2003–2009

    Diseases spread by water are caused by fecal–oral, contact, inhalation, or other routes, resulting in illnesses affecting multiple body systems. We selected 13 pathogens or syndromes implicated in waterborne disease outbreaks or other well-documented waterborne transmission (acute otitis externa, Campylobacter, Cryptosporidium, Escherichia ...


    By IWA Publishing

  • What is decentralized treatment?

    Why is decentralized treatment an important solution for global water scarcity challenges? As the climate shifts and water supplies shrink due to increased use by municipalities, agriculture, and industry, the need for effective and efficient water and wastewater treatment in remote locations is growing exponentially all over the globe. In addition, the energy to power these ...


    By Fluence Corporation

  • Organic removal activity in biofilm and suspended biomass fractions of MBBR systems

    The moving bed biofilm reactor (MBBR) wastewater treatment process is usually designed based on the assumption that all activity in the process occurs in the biofilm on the MBBR carriers, although there is always some active biomass in the bulk liquid due to biofilm sloughing and, sometimes, free-growing bacteria. In this study the removal of organic matter is evaluated in laboratory-scale MBBR ...


    By IWA Publishing

  • 4 Typical Misconceptions of MBBR for Wastewater Treatment

    When looking for information about a product or service you’re interested in, it can occasionally be difficult to find the answers to your specific questions. Sometimes you can’t really find anything and you end up making inferences based on what you did find. Sometimes, those inferences can be partially or completely wrong. Since you’re here, you’ve likely been looking into moving bed biofilm ...

  • A Refinery saves 25% on biocide dosage by using HydroBio Advance

    Real time determination and monitoring of biofilm in cooling systems 1. KEYWORDS HydroBio® Advance, Cooling system, Biofilm, Biocide consumption 2. BACKGROUND This case study shows how the application of the HydroBio® Advance is used to evaluate the real biocide demand of a cooling system in the petrochemical industry. ...


    By Kurita

  • A Refinery saves 25% on biocide dosage by using HydroBio advance - Case Study

    Real time determination and monitoring of biofilm in cooling systems 1. Keywords HydroBio Advance, Cooling system, Biofilm, Biocide consumption 2. Background This case study shows how the application of the HydroBio Advance is used to evaluate the real biocide demand of a cooling system in the petrochemical industry. Independent of ...


    By Kurita

  • EPA Proposes Two Test Methods and Guidance for Evaluating Antimicrobial Pesticides

    The U.S. Environmental Protection Agency (EPA) has recently announced the availability of two proposed test methods and associated testing guidance for evaluating antimicrobial pesticides against two biofilm bacteria, Pseudomonas aeruginosa and Staphylococcus aureus, for comments.  EPA states that registrants of antimicrobial products with public health claims are “required to submit ...


    By Bergeson & Campbell, P.C.

  • Fate of Salmonella Typhimurium in laboratory-scale drinking water biofilms

    Investigations were carried out to evaluate and quantify colonization of laboratory-scale drinking water biofilms by a chromosomally green fluorescent protein (gfp)-tagged strain of Salmonella Typhimurium. Gfp encodes the green fluorescent protein and thus allows in situ detection of undisturbed cells and is ideally suited for ...


    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, ...

  • What Is Decentralized Treatment?

    Why is decentralized treatment an important solution for global water scarcity challenges?


    By Fluence Corporation

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