biofilm growing Articles
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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 describe a ...
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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 ...
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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 ...
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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 ...
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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. ...
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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 ...
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Searcy Water Utilities Adopts Ultrasound Technology to Keep Its Facilities Cleaner
The application of ultrasound is keeping facilities cleaner longer, saving SWU time and money. One way to set up a municipal water utility is to treat water at the intake and then run it through open basins for conditioning and ultimately filtration. There’s a routine with keeping such installations clean. Biofilms tend to grow on basin walls, then peel off in sheets that gum up the filters ...
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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 supply all over ...
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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. Independent of the season the cooling system in a refinery was ...
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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 the season the cooling system in a refinery was treated with ...
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What Makes GWT’s MBBR Biological Treatment Solution Different From Other Solutions?
What Makes GWT's MBBR Biological Treatment Systems Different from Other Competing Systems? In cities and towns all over the world, homes and public buildings alike are connected by miles of underground sewage lines. Those lines lead to large scale wastewater treatment plants that are meant to treat for typical pollutants produced daily in those areas, most typically grey and black water from ...
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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 ...
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The importance of a dispersant in a Legionella Control Program
Outbreaks in Legionnaires’ Disease such as the one in the South Bronx of New York in August 2015 highlights the importance of having effective biofilm control as part of your overall industrial water treatment program. Colorized scanning electron micrograph (8000X) depicting a large grouping of Gram-negative Legionella pneumophila bacteria (Source: Centers for Disease Control). ...
By AMSA, Inc.
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What Is Decentralized Treatment?
Why is decentralized treatment an important solution for global water scarcity challenges? Modular, containerized treatment plants like the ones in Fluence’s NIROBOX™ line deliver water and wastewater treatment to exactly where it’s needed. Nirobox units can be used singly or in multiples to scale your project to its required treatment capacity. As the climate shifts and ...
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Coil Cleaning - Business Opportunity!
The Need: Coil cleaning is a much needed service for any customer - residential, commercial, industrial, healthcare, educational, etc. Coils are everywhere from evaporator, to condenser, reheat, heat recovery, heating, process, chiller, cooling towers and refrigeration. Nasty! Cleaning is an ongoing process (repeat business) – coils are getting dirty during everyday use, due to improper ...
By Vac Systems
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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 plants and the ...
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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 ...
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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 ...
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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 ...
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4 Misconceptions of MBBR Biofilm Reactor for Wastewater Treatment
Common Misconceptions of MBBR Biofilm Reactor Technology 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 ...
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