Drinking Water Treatment Articles

  • [Technical Paper] Biomass Evolution in Full-Scale Drinking Water Filters

    After nearly two-years of work, we could advance our understanding of ATP measurement in drinking water biofilters. I will describe some of the background and key results from the study below – more information is provided in the Journal AWWA December 2016 article. Background of the ...


    By LuminUltra Technologies Ltd.

  • Guide to Removing Arsenic from Drinking Water

    It’s said that the human body is made up of almost 60 percent water. Is the water you’re putting into your body pure? Many people are unaware of the chemicals and compounds that are seeping into their drinking water and wreaking havoc on their internal systems. Arsenic, for example, can be found in many different areas. In the Northeast especially, well water is more likely to be ...

  • The Benefits of Biological Treatment for Drinking Water

    The biological treatment of drinking water is undertaken using both organic and inorganic contaminants, and can be used to treat groundwater and surface water. These contaminants, contrary to what the name implies, are applied to strip away the factors that make the water unsafe for drinking until it is potable—meaning drinkable. If you would like to learn more about the benefits of ...

  • Nanobite Treated Contaminated Water – Fit to Drink! - Case study

    In 2010 the US Environmental Protection Agency, US Coast guard and BP Oil company invited Unirem Incorporated, the manufacturer of Nanobite Powder, to do an encapsulation test on crude oil polluted waters in the Gulf of Mexico. Nanobite Powder is the European trade name for a bio-remediation accelerator known in the USA as PRP (Petroleum Remediation Product). Nanobite Powder was ...


    By Slick Solutions

  • Water Security – A Growing Issue with No Easy Fixes

    The issue of water security – access to enough quality water to make it possible to live safely – is a growing concern for many, just ask the communities of Flint and Corpus Christie. The problem is exacerbated when communities and companies come face-to-face over access to water supplies. Wouldn’t the nice idea be to share?  That’s met with disagreements as ...


    By LuminUltra Technologies Ltd.

  • Socio-psychological determinants for safe drinking water consumption behaviors: a multi-country review

    The effectiveness of household water treatment practices relies heavily on consumers' compliance. However, what is driving these behaviors from a health psychological perspective is not well understood. A review of studies on safe water collection, treatment, handling and storage practices was conducted to identify important socio-psychological determinants. The objectives are to show which ...


    By IWA Publishing

  • Characterization and comparison of iron oxyhydroxide precipitates from biotic and abiotic groundwater treatments

    Removal of iron is an important step in groundwater treatment for drinking water production. It is performed to prevent organoleptic issues and clogging in water supply systems. Iron can be eliminated with a purely physico-chemical (abiotic) method or biotically with the help of iron-oxidizing bacteria (FeOB). Each of the purification methods requires different operating conditions and results ...


    By IWA Publishing

  • Treating drinking water with 99% removal - Case Study

    QED E-Z Tray® Air Stripper Treating Drinking Water with 99% Removal in Cedarburg, Wisconsin In October 2011, the Cedarburg, Wisconsin Light and Water Utility installed a QED E-Z Tray® (U.S. Patent Number 5,518,668) Air Stripper in a discreet addition to their existing production pump building. The E-Z Tray 72.6 handles a flow rate of ...


    By QED Environmental Systems

  • Inactivation of E. coli by copper and silver wire in the presence of synthetic sunlight for safe drinking water

    Bacterially-contaminated water is a major health concern leading to infectious diseases in emerging nations. The use of copper (Cu) and silver (Ag) wire independently, and Cu wire in combination with synthetic sunlight (SySu), were investigated as a low-cost water treatment method. Water inoculated with 1,100 colony forming units/mL of Escherichia coli was treated with one of these four ...


    By IWA Publishing

  • Zirconium and chitosan coagulants for drinking water treatment – a pilot study

    Scientists continuously search for alternative coagulants that would be able to outperform traditionally used aluminium (Al) and iron (Fe). Use of a novel metal coagulant zirconium (Zr) has been associated with enhanced organic matter reduction. On the other hand, eco-friendly non-metal solutions, such as chitosan, can provide non-toxic sludge and water with no metal residue. In fact, Zr and ...


    By IWA Publishing

  • Professional Advice for NEBOSH Success

    Maximising your Study and Exam Approach Following the success of our NEBOSH Quick Reference Sheet we released last week, I thought I would build on this with some extra advice for those students who really want to go the extra mile. Do you just want to pass? Or do you want to get a Distinction? Maybe even a Best Candidate Award? If you’re ambitious, ...


    By SHEilds Ltd

  • Radon-222 from different sources of water and the assessment of health hazard

    Water samples collected from different sources were analysed for radon concentrations in order to evaluate the health effect associated with radon in water. The radon concentrations were in the range of 3.56–98.57, 0.88–25.49, 0.73–1.35 and 0.24–1.03 Bq.L−1 for borehole, well, packaged and utility water, respectively. Samples from boreholes had the highest radon concentrations with about 67% ...


    By IWA Publishing

  • Adsorption of methylene blue from aqueous solutions using water treatment sludge modified with sodium alginate as a low cost adsorbent

    In this research, aluminum-based drinking water treatment sludge is used as a starting material and immobilized by sodium alginate to develop low cost adsorbent for the removal of methylene blue (MB) from aqueous solutions. The studied variables included pH, adsorbent dose, initial MB concentration and contact time. Characteristics of the adsorbent were also studied using scanning electron ...


    By IWA Publishing

  • The Low Down on Pipes: A Look at Municipal Water

    We manufacture our portable remotely operated vehicles (ROVs) and pipe crawlers for a variety of different industries and applications. Due to their robust design and versatility, Deep Trekker products have proven to be the ideal tools for many professionals and ...


    By Deep Trekker Inc.

  • Safe drinking water and waterborne outbreaks

    The present work compiles a review on drinking waterborne outbreaks, with the perspective of production and distribution of microbiologically safe water, during 2000–2014. The outbreaks are categorised in raw water contamination, treatment deficiencies and distribution network failure. The main causes for contamination were: for groundwater, intrusion of animal faeces or wastewater due to ...


    By IWA Publishing

  • Modeling and analysis of chlorine dioxide, chlorite, and chlorate propagation in a drinking water distribution system

    The drinking water distribution system of Cremona, in the north of Italy, was monitored for 6 years (2006–2011) analyzing chlorine dioxide, chlorite, and chlorate concentrations. The software Epanet 2.0 (USEPA) was applied to the distribution system. The mixing zone of the water coming from the two drinking water treatment plants, respectively located to the west and east of the city, was ...


    By IWA Publishing

  • Perfectly clean water without the use of chemicals - Waste Water - Case Study

    Wastewater treatment plant successfully cut down costs and environmental impact Thanks to the disinfectant system from Danish Clean Water, the Danish wastewater treatment plant Fredericia Spildevand is now saving yearly 75.000 € and reusing 70,000 m3 wastewater for cleaning – saving both money and drinking water. The employees at Fredericia Spildevand were quite ...

  • WWEM-Day: Undercover WWEM Information

    In Part 2 of our WWEM-Day installments we’re talking about our exciting undercover news… we have an updated model of one of our classic products about to launch! There will be a simplified design and less parts to make an already low maintenance product even better! This means greater accuracy, not to mention more ease and efficiency! Our new ...


    By Partech (Electronics) Ltd.

  • Limited effectiveness of household sand filters for removal of arsenic from well water in North Vietnam

    Since well water utilized for domestic purposes in the Red River Delta of North Vietnam has been reported to be polluted by arsenic, barium, iron, and manganese, household sand filters consisting of various components are used. Information regarding the effectiveness of various sand filters for removal of the four toxic elements in well water is limited. In this study, arsenic levels in 13/20 ...


    By IWA Publishing

  • Four steps well owners can take to protect their water wells, health during flooding

    The owners of private household water wells in areas of flooding should act to address possible threats to their drinking water quality, the National Ground Water Association said today. If a well has been flooded: Do not drink the water or wash with it, but use an alternative supply such as bottled water Stay away from the well pump ...

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