wastewater screening application Articles

  • Airlift bioreactors: Application to wastewater treatment

    After an introductory review, this paper presents a three-phase reactor fluid dynamic model that is used in the development of a generic process for upgrading existing wastewater treatment plants (WWT). The aim is to incorporate nitrification and de-nitrification without additional reactor volume. The core of the process consists of an attached growth airlift reactor (AGAR) in which a biomass ...

  • Application of the Morris method for screening the influential parameters of fuzzy controllers applied to wastewater treatment plants

    In this paper, we evaluate the application of a sensitivity analysis to help fine-tuning a fuzzy controller for a biological nitrogen and phosphorus removal (BNPR) plant. The Morris Screening method is proposed and evaluated as a prior step to obtain the parameter significance ranking. First, an iterative procedure has been performed in order to find out the proper repetition number of the ...


    By IWA Publishing

  • 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 ...

  • Screening of organic pollutants in urban wastewater treatment plants and corresponding receiving waters

    There is a lack of knowledge in environmental pollution of the anthropogenic contaminants in wastewater and surface water. Several organic compounds merit special attention, because of their potential risk to the aquatic environment. Therefore, gas chromatography–mass spectrometry-based screening analyses were performed in order to identify anthropogenic organic contaminants and to reveal ...


    By IWA Publishing

  • A modelling system for wastewater treatment process evaluation and screening: methodology and case study

    Considering nutrient reduction, China's wastewater treatment plants are facing the challenge to upgrade. A modelling system has been developed to screen suitable treatment processes, while statistical methods are not feasible due to data shortage. The system comprises a database to manage different treatment unit technologies, a module to generate candidate processes, a module to simulate ...


    By Inderscience Publishers

  • Fundamentals and Advantages of Screen Filtration

    The “art” of filtration utilizes many methods for separating solid particles from fluids. There is often no right or wrong method. Water quality and customer requirements usually determine the “best” method for each unique situation. Ridged screens, pleated cartridges, string wound cartridges, melt blown cartridges, woven fabrics, non woven fabrics, sintered metals, granular media, frizzy balls ...

  • Rotary Drum Screen - Case Study

    This case study showcases how the Old Atlanta Club Wastewater Treatment Facility has solved its debris problem thanks to Aqualitec's rotary drum screen Drumtec which is ian internally fed rotating drum screen built for heavy pretreatment applications such as draining, mud thickening, and sandy or ...


    By Aqualitec Corp.

  • Rotomite application, Decatur, Arkansas

    The Town of Decaur, Ark., is using a self-propelled dredging system as part of a new biosilids management program designed to reduce the cost of sludge disposal and increase solids detention time in-plant. While less than 1,000 people live inDecatur, the town's wastewater treatment plant handles flow equivalent to a population of 40,000. The primary contributor to these flows is a poultry ...


    By SRS Crisafulli, Inc.

  • Screening of few aquatic floating plants for chromium phytoremediation

    Phytoremediation process using hydrophytes emerges as an attractive scientific and engineering tool for the attenuation of metal pollution in the aquatic environment particularly in secondary and tertiary levels of wastewater treatment. The selection of appropriate plants on the basis of maximum uptake potential for engineering application of the process is the key factor. The present study deals ...


    By Inderscience Publishers

  • Bio-diesel Application - Case Study

    More than a decade of research and development by a network of soybean farmers, backed by an environmentally responsible food processor, a local soybean association and the formation of a farmer (majority) owned firm, resulted in the construction of a biodiesel facility in the central United States. Using soybean oil as its primary feedstock, the facility planned to produce 40 million gallons of ...


    By Clean Water Technology, Inc.

  • Frozen Food Applications - Case Study

    Introduction Clean Water Technology Inc. (CWT), the creator of the Gas Energy Mixing (GEM) System, offers the most advanced primary treatment system on the market. The GEM System provides superior reduction of total suspended solids (TSS), biological and chemical oxygen demand (BOD/COD), fats, oils and grease (FOG) and turbidity and at the same time provides complete expandability in terms ...


    By Clean Water Technology, Inc.

  • Treatment of Cyanide Bearing Wastewaters

    Water Innovations utilizes a 2-stage Cyanide Oxidation (CN) system that can treat from 2 GPM to 10 GPM. In the first stage of treatment, hypochlorite oxidizes cyanide to cyanate. It consists of two double-wall “Batch” Cyanide Oxidation Tank and an accumulation tank for cyanide-bearing rinse water, each tank equipped with one mixer. Wastewater containing cyanide will be pumped or flow ...


    By Water Innovations, Inc

  • Fine screen retrofit cuts upgrade costs by US$1m

    Hawaii typically conjures up images of azure seas, swaying palms and pristine beaches. Behind the romance of this tropical paradise is a reality that faces most wastewater treatment professionals today – a rising population placingincreased demands on treatment facilities and tougher regulatory requirements.To preserve Hawaii’s natural beauty, keep up with growth and ensure regulatory compliance, ...


    By JWC Environmental

  • Chemical wastewater treatment applying a membrane bioreactor (MBR)

    IntroductionAt the current time Membrane Bioreactors (MBR) are the primary focus of wastewater treatment technologies. MBR is a combination of biological activated sludge process for the removal of nutrients and a membrane filtration for separation of biomass and treated water. In industrial wastewater treatment MBRs have proven to be a particularly reliable technique [Cornel et al., 2006]. The ...


    By MICRODYN-NADIR GmbH

  • NFPA 820 Compliance in Wastewater Treatment Plants

    Wastewater treatment plants are essential structures in cities and small communities. Such facilities are closely monitored by several professional institutions, such as OSHA and the NFPA. When it comes to the latter group, guidelines set forth in NFPA 820 are regulations that dictate fire hazards in such facilities. Fire related accidents in wastewater treatment facilities are uncommon. However, ...


    By Larson Electronics LLC

  • 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.

  • How Shasun maximises the investment in it`s biological wastewater treatment plant

    At the Dudley Shasun facility we have a 7500 m3 biological treatment plant that can treat up to 36 tonnes of waste COD per day. Part of this capacity is utilised to treat up to 15 tankers per day of third party aqueous waste. The waste is very varied, covering everything from leachates at only 2000ppm COD to industrial waste at up to 500,000ppm COD. The Strathkelvin respirometer forms a central ...

  • A practical protocol for calibration of nutrient removal wastewater treatment models

    Activated sludge models can be very useful for designing and managing wastewater treatment plants (WWTPs). However, as with every model, they need to be calibrated for correct and reliable application. Activated sludge model calibration is still a crucial point that needs appropriate guidance. Indeed, although calibration protocols have been developed, the model calibration still represents the ...


    By IWA Publishing

  • 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.

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