internally-fed municipal wastewater screen Articles

  • Full scale municipal implementations of the Agar IFAS process for municipal wastewater treatment

    Wastewater treatment plant retrofits worldwide are motivated by two main developments: a. Changes in effluent quality regulations, either to more stringent BOD/TSS requirements, or to include nutrient (N and P) removal b. Increase in flows to existing plants, due to either population growth or to expansion of sewerage systems One process capable of giving a cost-effective solution for these two ...

  • Rotomite application serving municipal WWTP, Decatur, Arkansas-case study

    As reported in WaterWorld, Serving the Municipal Water/Wastewater Industry In 1996, the Town of Decaur, Ark., purchased a self-propelled Rotomite 180-P dredging system as part of a new biosolids management program designed to reduce the cost of sludge disposal and to increase solids detention time in-plant. While less than 1,000 people live in Decatur, the town's wastewater treatment plant ...


    By SRS Crisafulli, Inc.

  • Wastewater Treatment in Turbo Mode

    Sulzer turbocompressors type ABS HST are successful in wastewater treatment. Today, 2000 units are installed around the world—for example, in municipal plants like in the city of Sögel, Germany. Here, the turbocompressors not only reduced the operating costs but also helped the plant to cope with load fluctuations. The secret behind this success is an advanced design with proven ...


    By Sulzer

  • The natural way to clean wastewater

    John Todd founded Ocean Arks International in the 1980s, where he started to experiment with processes that mimic natural ways to purify wastewater. He built a greenhouse and ran sewage through a series of tanks, with plants suspended in the flowing waters, and constructed marshes made of sand and gravel. No chemicals were added, but plenty of aquatic creatures from snails to small fish were ...


    By BioCycle Magazine

  • Electrocoagulation Wastewater Treatment – An Application To Sustainably Reuse Textile Wastewater

    The textile industry is a water consumption intensive industry. Water is utilized for cleaning the raw material, and for the different steps in the textile dyeing process. Due to the effects of water scarcity and stricter environmental regulations, the cost of fresh water utilization has increased worldwide. In addition, the textile industry is faced with pressure by government regulators to move ...

  • WWTP Marines, Spain upgrading a municipal WWTP using AGAR® technology A Case Study

    Case Study: Municipal plantStart up: May 2007Capacity: 380 m3/d Abstract In view of EU directives for effluent discharge, it was required to upgrade the local sewage plant in the town of Marines, Valencia (Spain). The technology chosen for the project was AGAR® (Attached Growth Airlift Rector) of AqWise - Wise Water Technologies Ltd. La Entidad Pública de ...

  • Streamlining Wastewater Treatment in Poultry Processing: Michigan Turkey and Lyco Team Up to Provide a Showpiece for Reducing BOD and TSS Levels

    With the steady increase in poultry processing rates there has been a corresponding increase in wastewater pollutant concentrations. Despite mechanical improvements in wastewater treatment, many poultry processors continue to pay unnecessarily high fees for municipal water discharges. $100-million-annual processor, Michigan Turkey Producers, in conjunction with Lyco Manufacturing, has set up a ...


    By Lyco Manufacturing, Inc.

  • Introduction to Decentralized Packaged Wastewater Treatment (PWWT) Systems - PDH Article

    Learning Objectives After reading this article, you should understand: Functions and processes of a decentralized PWWT system; Design considerations of a PWWT system. Overview "Clean water will be the oil of the 21st Century." The accuracy and magnitude of this statement is resonating worldwide. ...

  • Fluidized Fixed-Film Systems For Cost Effective Upgrade Of Existing Wastewater Treatment Plants

    As capacity demands increase and effluent quality regulations become increasingly stringent, a rising number of wastewater treatment plants across North America are in need of process upgrades. Nutrient removal requirements and high quality effluent standards for wastewater reuse have become more prevalent in recent years to safeguardaquatic habitat and conserve water resources. Upgrading large ...


  • City of Hamilton, Ontario Wastewater Treatment Plant Chooses Moyno’s New Urethane Stators to Increase Pump Life

    Springfield, Ohio The City of Hamilton, Ontario Wastewater Treatment Plants (WWTP) collect both sanitary and combined sewage (wastewater). The collection system services not only the City of Hamilton, but also the surrounding areas including the towns of Dundas, Ancaster, Water Down, Glanbrook Township, and the former City of Stoney Creek. The City of Hamilton’s Woodward Avenue WWTP began ...


    By Moyno, Inc.

  • The Variation of Nitrifying Bacterial Population Sizes in a Sequencing Batch Reactor (SBR) Treating Low/Mid/High Concentrated Wastewater

    ABSTRACTThe purpose of this study was to correlate the population size of ammonia-oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) with nitrification performance under various operational conditions (chemical oxygen demand (COD) concentration, dissolved oxygen (DO), and hydraulic retention time (HRT)) and influent allythiourea (ATU) shock. The AOB (genera Nitrosomonas and ...

  • Spreadsheet Implementation of Activated Sludge Model #1 for Sequencing Batch Reactors

     KEYWORDS Sequencing Batch Reactor, Simulation Modeling, ASM1, Flow Routing BACKGROUND Many small municipal wastewater treatment plants in North America use sequencing batch reactors (SBR) to provide secondary treatment. SBRs are a fill-and-draw variant of the activated sludge process in which a single reactor is used to mix raw ...

  • Jail waste streams provide unusual challenges to typical industry equipment

    Arlat ‘TS’ Filter Screen proves itself equal to the challenge. Unusually high volume of solids and the wide variety of materials in waste streams from correctional institutions provide unique challenges to today’s typical wastewater equipment. In recent years, the state of Virginia has installed five ARLAT ‘TS’ Filter Screens in correctional institutions. They use the screens to remove ...

  • Overcoming Onsite Reuse Woes

    The buzz words “water reuse” are very pervasive in today’s culture.  Everyday we receive newspapers, e-newsletters and conference announcements that speak of drought, water shortages, global warming, discharge prohibitions and conservation.  The wastewater treatment plant at one Midwest municipality has proactively demonstrated its determination to do its conservation duty by reusing up ...


    By Orival, Inc.

  • Waste Management Solutions for Business

    How to win the race for everyone Waste Management Solutions for Business Industry will always lead the way in the adaptation of new technology, and especially the technology of conservation. This is not necessarily for any ideological reason, but because the people who manage water use better understand the economic incentives for adopting new ...

  • National brewery benefits from biogas

    Anheuser-Busch has installed anaerobic digestion systems at 10 of its 12 large breweries in the U.S., with an 11th system in design. Primary drivers are cost-avoidance for wastewater treatment fees and fossil fuel purchases. ANHEUSER-BUSCH, owner of 12 large breweries in the U.S., has committed to reduce its greenhouse gas emissions 5 percent from 2005 levels by 2010. The company is well ...


    By BioCycle Magazine

  • `Hyperwaste Reduction` :Organics Recycling May Get Digested Look In Iowa

    CEDAR RAPIDS — with active support from the Iowa Department of Natural Resources (DNR) — is optimistic about its new strategy to expand organics recycling. Under the leadership of executive director Dave Hogan, the Bluestem Solid Waste Agency, which serves the Cedar Rapids region, is presently composting 118,000 tons/year of yard trimmings and paper/pharmaceutical sludges. But Hogan is convinced ...


    By BioCycle Magazine

  • MSW Composting in the United States

    Massachusetts became home to two new composting facilities that process MSW and biosolids. Nationally, the total number of operating plants is 19. Since the mid-1980s, BioCycle has been conducting an annual, nationwide survey of municipal solid waste (MSW) composting facilities. From the late 1980s into the early 1990s, when it was projected that landfill capacity would drop and tipping fees ...


    By BioCycle Magazine

  • Renewable energy marketplace

    ALLU Group markets two types of equipment for use in biomass energy operations. The ALLU Screener Crusher bucket attaches to a front-end loader. The bucket is designed to aerate, crush, screen and mix at one time. The Screener Crusher has a rigid steel frame, onto which horizontally rotating screening and crushing drums are mounted. All the drums rotate in the same direction. There are several ...


    By BioCycle Magazine

  • Analytical Support for Cost-Effective Pollution Control

    ' Analytical tools have been developed by the World Bank Group to estimate rapidly the extent and impacts of pollution in a given situation and to support decisions on pollution management. These tools help decision makers to overcome the frequent lack of data on emissions from different sources, their impact on ambient quality, and mitigation alternatives.' Decision Support System for ...


    By The World Bank

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