media filter cell Articles

  • New Cloth Media Filter System Replace 4 MGD Traveling Bridge Filters with 12 MGD Capacity in Existing Tankage

    ABSTRACTThe Little Falls Run Wastewater Treatment Facility began experiencing operational difficulties with the dual-bay traveling bridge filter process as flows approached the rated capacity for the filters. Although initially the Utilities Department staff intended to duplicate the original filter process and thereby double the capacity, the recent introduction of a cloth media filter product ...

  • Introducting a New Media for Fixed-Film Treatment in Decentralized Wastewater Systems

    ABSTRACTBoth naturally occurring and artificial media have been used to treat wastewater in small community settings. Systems using naturally occurring media include sand filters and peatbased biofilters. Artificial media include open cell foam, textiles, and plastics. All the above operate as fixed-film systems, in that attached growth microorganisms are encouraged to colonize and reproduce in ...

  • Biological trickling filters - New Zealand

    The Client VWS UK is involved in a unique project in New Zealand for a new Wastewater treatment plant in Hastings. The Client's Needs In New Zealand the Maori people have a strong influence over any decision affecting the land. Maori are deeply offended by discharge of human wastes, particularly to natural waters and also land.Historically, in Maori ...


  • 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.

  • Application of cigarette filter rods as biofilm carrier in an integrated fixed-film activated sludge reactor

    Bio-carriers are an important component of integrated fixed-film activated sludge (IFAS) processes. In this study, the capability of cigarette filter rods (CFRs) as a bio-carrier in IFAS processes was evaluated. Two similar laboratory-scale IFAS systems were operated over a 4-month period using Kaldnes-K3 and CFRs as IFAS media. The process performance was studied by using chemical oxygen demand ...


    By IWA Publishing

  • Davyhulme WwTW - Biostyr BAFF - United Kingdom

    United Utilities 180 week - Programme 32,000 m3/hr The Client United Utilities are the 2nd largest water company in England / Wales. They are responsible for an area in the north west of the UK, which includes major cities such as Manchester and Liverpool. The Client's Needs Davyhulme is ...


  • Significant Improvements in Biofilter Performance for H2S and VOC Removal Using Biotrickling/Bioscrubber Technology in the Aeration Distribution Plenum System

    ABSTRACT Biofilters can handle the removal challenge of a diverse mix of complex odors and VOCs. However, there are significant limitations in handling levels of hydrogen sulfide (H2S) loadings above 10 ppm. High levels of H2S loading in biofilters will create an increase in the acidithiobacillus colony causing an overproduction of acid. This will destroy all other biodegrading ...

  • Do You Smell Something Burning?

    For safety and insurance purposes, most if not all mechanical codes have requirements with regards to fire safety for materials used in a building’s HVAC systems. For instance, the State of Ohio (USA) MechanicalCode states in the section on “Air Filters” that: ...


    By Purafil, Inc.

  • Filtration by Means of Ceramic Membranes - Practical Examples from the Chemical and Food Industries

    Traditionally, ceramic membranes have been used in waste water engineering. Meanwhile, they are applied in all areas where media need to be filtered, such as in recycling processes in the chemical industry, for cell separation in biotechnology or for fruit-juice filtration in the food industry. 1 Introduction Ceramic membranes based on aluminum oxide are an operationally reliable ...


    By atech innovations gmbh

  • AFM water treatment for biodiversity

    The discharge of List 1 bio-accumulated chemicals into the marine environment is one of the most serious forms of pollution that we inflict on our environment. The marine enviroment is responsible for the production of most of our oxygen and reduction of carbon dioxide. Tropical rainforrests and terestial plants are also extremely important in dictating our local climate, however they ...


    By Dryden Aqua Ltd

  • NEW BLOG ENTRY: Water Monitoring Goals

    The concept of biological filtration has become a common means to remove organics prior to disinfection to minimize formation of disinfection by-products. However, the tools available to assess biological growth tendencies in biological filters are limited. Heterotrophic Plate Counts and other culture-based methods take days to obtain results, only measure very small portions of the true ...


    By LuminUltra Technologies Ltd.

  • Air filtration applications for membranes

    Given their unique performance attributes membranes are finding use in a growing number of high efficiency air filtration applications. One example is in respirators and personal protective equipment. Applications where intense physical demands and risk of exposure to harmful contaminants are present demand the high efficiency / low pressure drop combination of expanded polytetrafluoroethylene ...

  • Biostyr, Chapel-en-le-Firth WwTW

    United Utilities 5.1 MLD The Client United Utilities are the 2nd largest water company in England / Wales. They are responsible for an area in the north west of the UK, which includes major cities such as Manchester and Liverpool. The Client's Needs Chapel-en-le-Frith is situated in the Derbyshire peak ...


  • Minimizing aerobic and post anoxic volume requirements in tertiary integrated fixed-film activated sludge (IFAS) and moving bed biofilm reactor (MBBR) systems using the aquifas model

    Research was undertaken to calibrate and verify the Aquifas semi-empirical and biofilm 1D models against a full scale Integrated Fixed-Film Activated Sludge (IFAS) system. The model was then used to evaluate and identify alternatives to upgrade the performance of tertiary IFAS system and Moving (mobile) Bed Biofilm Reactor (MBBR) systems that could minimize volume required for nitrogen removal. ...

  • Alaska - Anadarko Oil Camp case study

    The "North Slope" of Alaska is one of the harshest environments in the world to survive in, let alone work in, on a daily basis. Temperatures can reach -70 degrees F and wind chill factors can reach -100 degrees F. The "Slope" is home to thousands of oilfield workers, many of who live in portable camps located in extremely remote locations. In such an environment, equipment must be reliable, ...


    By Quanics Incorporated

  • Leachate treatment solution for council – Landfill Site, Camarthenshire

    Plant Equipment: Ocean Professional Nitrification Plant Design Data: Effluent target (NH4-N): <4 Daily flow (m3/day): 120 Ammonia load (kg/day): 6 BOD load (kg/day): n/a Situation and Problem This site comprises of six landfill cells and phase ...


    By EnSo International Ltd

  • The role of a hybrid phytosystem in landscape water purification and herbicides removal

    The performance of a hybrid phytosystem in landscape water purification and herbicides removal was investigated. The phytosystem operating in an arboretum is located in the Minhang Campus of Shanghai Jiao Tong University, China. The phytosystem is composed of two purification stages: sedimentation Stage 1 without external air supply; and Stage 2 with an external air supply. Stage 2 is also ...


    By IWA Publishing

  • Compost in the mix for storm water management

    Bioretention areas, also known as rain gardens, are increasingly being used to capture and treat storm water runoff from impervious surfaces such as roofs, sidewalks and parking lots. These landscaped areas often feature native plants installed in an engineered soil mixture that includes compost. “Bioretention areas or rain gardens are an attractive storm water Best Management Practice (BMP) ...


    By BioCycle Magazine

  • The Different Kinds of Dust Collection Booths

    Factories that produce heavy dust particles require a dust collector system in place, so employees can breathe in clean and pure air at all times. Also, with one of these systems in place, machinery functions well and lasts longer. Dust collection booths also help limit dust into a closed area and safely trap it inside a closed space for ...


    By ProVent, LLC

  • Wyoming - Oil Camp case study

    The harsh open plains of Southern Wyoming are the home for many oil and natural gas workers. These hard working men and women are a true cross section of Americans looking to provide for their families back home. For many, their homes away from home are modular housing structures setup in a camp setting oftentimes in the middle of their work environment Due to the remote locations, these camps ...


    By Quanics Incorporated

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