Wash Water Articles

  • Power Station Slag Recycling - Case Study

    The problem: Coal fired power stations operating tap slag boilers release most of the ashes resulting from the combustion as slag at the boiler bottom. There is a number of such power stations in Europe operative. These boilers are also known as wet bottom boilers. There are two types of wet-bottom boilers: the slag-tap boiler and the cyclone boiler. The slag-tap boiler burns ...


    By Dirk European Holdings LTD

  • Wastewater and groundwater

    Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With ...

  • The design and build of a process and wastewater treatment plant - Inlet: 900 mc/h - Case Study

    The client Ferrara Food, part of the S.F.I.R. group, is a company operating in the agro-industrial sector. More specifically Ferrara Food operates within the preserved food industry, specialising in tomato processing, from fresh product to semi-finished and finished products. Semi-finished products can be 200kg containers, or 1200kg bigbags, filled through an ...


    By IDRAFLOT

  • Qualitative comparative analysis for WASH research and practice

    Qualitative comparative analysis is an established research method that has been underutilized in water, sanitation, and hygiene (WASH) research. It has immense potential for addressing the complexity inherent to WASH projects, and can produce robust and transparent results from intermediate or large numbers of cases. The method enables researchers and practitioners to blend quantitative and ...


    By IWA Publishing

  • Reducing the burden of rural water supply through greywater reuse: a case study from northern Malawi

    Greywater reuse has potential for non-potable applications that conserve freshwater resources in water-stressed areas especially in sub-Saharan Africa. The feasibility of reusing greywater for domestic activities in a rural area of Malawi, Africa, was evaluated from microbiological and public acceptance perspectives. Median Escherichia coli concentrations for eight domestic greywater sources ...


    By IWA Publishing

  • The Composition of Antifreeze Washing Liquid for Windshields

    Using special fluid for cleaning a car windshield in the cold season is common for the vast majority of drivers. The popular name of this liquid is “antifreeze”. This product is in great demand with the onset of cold weather, when the temperature drops below zero. Antifreeze if often quite pricey, so many drivers are interested in the composition of this liquid and the possibility of ...


    By GlobeCore GmbH

  • Antifreeze Windshield Washing Liquid

    In cold season nonfreezing liquid for windshield washer along with gasoline are virtually the only consumable materials for a car. It seems impossible to not use this product, because it allows the driver to maintain visibility of the traffic situation and helps reduce the number of car accidents. Antifreeze is used in all cars regardless of their brand and ...


    By GlobeCore GmbH

  • Combined process of electrocoagulation and photocatalytic degradation for the treatment of olive washing wastewater

    In this study, an electrocoagulation reactor (ECR) and photocatalytic reactor (PCR) were tested to understand the performance of combined electrocoagulation and photocatalytic-degradation of olive washing wastewater (OWW). The effects of initial pH (6.0, 6.9, 8.0, 9.0), applied voltage (10.0, 12.5, 15.0 V), and operating time (30, 60, 90, 120 min) were investigated in the electrocoagulation ...


    By IWA Publishing

  • Treatment of laundry wastewater by biological and electrocoagulation methods

    The present study describes an improvement in the current electrocoagulation treatment process and focuses on a comparative study for the clean-up of laundry wastewater (LWW) after each wash and rinse cycle by biological and electrocoagulation treatment methods. For biological treatment, the wastewater was treated with a Bacillus strain of aerobic bacteria especially suited for the ...


    By IWA Publishing

  • Wash Water Questions and Answers

    When the subject of Wash Water Recycling comes up there are many questions that can arise. The following are a few that are frequently asked are: Will it have an odor? What will its’ clarity be? How much is recycled? The above questions seem very basic but can at times create a complex response because of ...


    By ESD Waste2Water, Inc.

  • 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 ...

  • Chromium and phosphate removal from wastewater in the stainless steel finishing industry - Case Study

    Customer Application and Activity Rimex specializes in metal finishing and architectural metals and has been producing surface finishes on stainless steel and other metals since 1959. The process generates an acidic wastewater which is collected in 2 separate sumps, one for effluents containing chromic acid and another for those containing phosphoric/sulfuric acid. Key ...


  • Case study - Helicopter Wing Karup (Karup Airbase)

    COST EFFECTIVE AND ENVIRONMENTALLY CORRECT HANDLING OF WASTEWATER CONTAINING HEAVY METALS Client: The Danish Airforce helicopter group Helicopter Wings Karup, with homebase at the Karup Airfield. Helicopter Wing Karup was challenged with their wastewater from washing the helicopters. The content of heavy metals exceeded the limits for the direct disposal into ...


    By Envotherm A/S

  • Hydrologic impacts of climate change and urbanization in the Las Vegas Wash Watershed, Nevada

    A cell-based model for the Las Vegas Wash Watershed in Clark County, Nevada, USA, was developed by combining the Thornthwaite water balance model and the Soil Conservation Survey's Curve Number method with pixel-based computing technology. After the model was validated, it was used to predict the 2030 and 2050 hydrologic conditions under future scenarios of climate and land-use changes. The ...


    By IWA Publishing

  • Commercial vehicle wash - case study

    Problem: A large city local authority identified significant infection risks at one of its waste depots, where its fleet of dust carts were cleaned using a commercial vehicle wash on a daily basis. This vehicle wash recycles the water, and was infected with water-borne bacteria. The aerosol droplets sprayed over the dust carts were a serious infection risk to employees and the ...


    By Tarn-Pure Ltd.

  • On-site treatment of used wash-water using biologically activated membrane bioreactors operated at different solids retention times

    Biologically activated membrane bioreactors (BAMBis) were operated at suspended solids retention times (SRT) of 7 and 102 days and at full solids retention. The effect of these different approaches of operation on the substrate and nutrient conversion, and on permeate flux, was investigated. Variations in organic loads and aeration intensities were also studied. Permeate flux stabilized during ...


    By IWA Publishing

  • July is Lake & Reservoir Awareness Month!

    Lakes and reservoirs cover over 40 million acres of the United States. Lakes and reservoirs also play other vital and often hidden, roles. They provide drinking water and irrigation water for agricultural fields and many times a source of electricity and power generation. They also serve an important function of absorbing rainfall and runoff from land, help to prevent floods, and provide ...

  • Influence of seasonal temperature fluctuations on two different partial nitritation-anammox reactors treating mainstream municipal wastewater

    Partial nitritation-anammox (PN-A) has gained increasing interest for municipal wastewater treatment in recent years due to its high energy-saving potential. Moving the PN-A technology from side- to mainstream exhibited a set of challenges. Conditions are quite different, with much lower ammonium concentrations and temperatures. Biomass retention becomes highly important due to the even lower ...


    By IWA Publishing

  • Sources of organic matter in first flush runoff from urban roadways

    This study aims to explore the influential sources of organic matter in first flush runoff from urban roadways by comparing organic carbon content and particle size distribution in road dust with those from discharge from vehicles during rainfall. Samples on first flush runoff and road dust were collected from urban roadways. In addition, vehicle drainage was assumed to flow from vehicles ...


    By IWA Publishing

  • Ideal treatment of laundry wastewater with ultrafiltration installations

    Treatment of very dirty work clothing also produces heavily polluted, oily/greasy wastewater. It is the aim of laundry wastewater treatment to reduce fresh water consumption and to minimise the volume of residuals. At the same time, adherence to the limit values according to appendix 55 of the General provisions on hydrocarbon, heavy metal and AOX contamination in wastewater must be guaranteed. ...


    By EnviroChemie GmbH

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