washwater Articles

  • Egg Processing

    Problem: This eggplant, located in Southern California, pro¬duces approximately 6 million eggs per week. During the process and preparation of these eggs, some break and fall on the floor where they are washed into floor drains and mixed with the egg wash water. The mixture of broken eggs and wash water is discharged to a balance tank and then sent through a settling ...


    By HydroCal Inc.

  • Filter helps city meet phosphorus limits - Case Study

    Problem The operators at the Lakes Area Sewer Authority treatment plant in Cass County, Mich., sought an efficient filtration system to meet stringent summer phosphorus limits. The city wanted a high-rate filtration system with a small footprint to fit inside a small building, with low wash water usage, easy cleaning and low maintenance cost. Solution ...

  • Recovery of microorganisms on fabric materials after low water temperature washing with non-oxidizing acidic bleaching formulation by culture method

    The recovery of microorganisms to different fabrics was evaluated after a washing process combined with a food-grade non-oxidizing acidic formulation and low washing water temperature. Cotton, polyester and a polyester/cotton blend fabric samples were inoculated with Escherichia coli, Listeria innocua and Saccharomyces cerevisiae, then dried for 1 day. They ...


    By IWA Publishing

  • Pemex Refinery Decommissioning

    The Problem The decision by PEMEX to close their "La Nogalera" petroleum storage facility in Guadalajara, Mexico, involved the demolition of the facility's large storage tanks. Before demolition, the tanks had to be cleaned and all traces of petroleum had to be removed from the tanks. All tanks were pressure washed prior to demolition creating a large volume (9,035 m3) of contaminated wash ...


    By Nordevco Associates Ltd.

  • 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.

  • EC at Ritchie Bros. Heavy Equipment Auctioneers case study

    Customer Profile Ritchie Bros. are located in Olympia, WA, and clean wash water from pressure washing mud and oil & grease from heavy earth moving equipment Application Cleaning wash water from pressure washing mud and oil & grease from heavy earth n moving equipment How Electrocoagulation Works As wastewater ...

  • J.C. Chambers WWTP City of Berea, KY

    The City of Berea was operating with outdated belt press technology which had high maintenance requirements and inadequate operating capacity. During the latest expansion of their facility, the plant evaluated various options for increasing the hydraulic throughput and reliability of their dewatering system. BDP was the press of choice due to the superior performance of the 3DPTM belt filter ...


    By BDP Industries

  • Optimization analysis of separation conditions of washed water containing a lead complex and characterization of the precipitation products

    Presently, the large amount of industrial leaded wastewater creates a great challenge to both environmental governance and wastewater recycling. Lead complexes in washed water must be removed mostly before the washed water can be recycled. This paper reports the mechanism and factors of removing Pb complexes in simulated washed water by the sulfide precipitation method. The reaction time, ...


    By IWA Publishing

  • Characterization of microbial communities in exhaust air treatment systems of large-scale pig housing facilities

    Exhaust air treatment has gained importance as an essential factor in intensive livestock areas due to the rising emissions in the environment. Wet filter walls of multi-stage exhaust air treatment systems precipitate gaseous ammonia and dust particles from exhaust air in washing water. Microbial communities in the biomass developed in the washing water of five large-scale exhaust air treatment ...


    By IWA Publishing

  • Needs and vulnerability assessment (NAVA) indicators for specific hazards in the context of Sri Lanka

    Development of a four hazard-specific toolkit (drought, flood, landslide and chronic kidney diseases of unknown aetiology) for needs and vulnerability assessment in the water, sanitation and hygiene (WASH) sector included community consultations with district, divisional and community stakeholders in four selected districts of Sri Lanka, which are highly prone to the respective hazards. ...


    By IWA Publishing

  • Building on tradition

    A new technology is making a name for itself in potable water filtration. And, according to AMT Systems, it is the most cost-efficient advance since the introduction of the dual media filter. Your filters need to be washed every day. What would your energy, water and waste treatment saving be if they only required washing every four or five days? You need to increase the output of the works. Are ...


    By Filtralite - Leca Norge AS

  • United Utilities - Case Study

    Drinking water treatment at Rigdaling WTW Rigdaling water treatment works (WTW) from United Utilities has a daily treated water output of 12 Ml/d. For this WTW, Paques supplied the flocculation/clarification stage comprising ASTRASEPARATOR® lamella packs for the removal of suspended solids and turbidity. Furthermore, Paques supplied the flocculation and ...


    By Paques Technology B.V.

  • Minimizing water consumption and health problems at the same time (Malaysia)

    PROBLEM A glue manufacturing plant in Malaysia had a belt press, but they had always faced clogging problems because of the sticky characteristics of sludge dewatered. For its operation and maintenance, they needed to use a great amount of water, as much as 36 m3/day. Furthermore, high-pressure water cleaning generated loud noises and the ...


    By AMCON Inc.

  • Pemex refinery decommissioning case study

    The Problem The decision by PEMEX to close their "La Nogalera" petroleum storage facility in Guadalajara, Mexico, involved the demolition of the facility's large storage tanks. Before demolition, the tanks had to be cleaned and all traces of petroleum had to be removed from the tanks. All tanks were pressure washed prior to demolition creating a large volume (9,035 m3) of contaminated wash ...


    By Nordevco Associates Ltd.

  • 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

  • Treatment of tunnel wash water and implications for its disposal

    The use of road tunnels in urban areas creates water pollution problems, since the tunnels must be frequently cleaned for traffic safety reasons. The washing generates extensive volumes of highly polluted water, for example, more than fivefold higher concentrations of suspended solids compared to highway runoff. The pollutants in the wash water have an affinity for particulate material, so ...


    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

  • Royal Cosun - Case Study

    Green energy from wash water in sugar production Royal Cosun is a sugar factory in Dinteloord, the Netherlands that produces sugar from sugar beets. As sustainability is very important for Royal Cosun, they wished to generate methane from their process water. Sugar beets lose sugar when they are washed, making the process water perfectly suited for the production of green ...


    By Paques Technology B.V.

  • Development and testing of a water-efficient laundry system in informal settlements of eThekwini municipality, South Africa

    In the informal settlements of eThekwini municipality, South Africa, laundry activities are typically undertaken at local standpipes and washbasins of community ablution blocks (CABs), and are characterised by high levels of water consumption and greywater production. Since greywater contains a high pollution load, including sodium tripolyphosphate, it poses a significant environmental and public ...


    By IWA Publishing

  • Glue manufacturing plant in Malaysia case study

    Minimizing water consumption and health problems at the same time!! A glue manufacturing plant in Malaysia had a belt press, but they had always faced clogging problems because of the sticky characteristics of sludge dewatered. For its operation and maintenance, they needed to use a great amount of water, as much as 36 m3/day. Furthermore, high-pressure water cleaning generated loud ...


    By AMCON Inc.

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