Water Purification Articles

  • Alternative water supply and treatment solutions in Durban (SA)

    As a result of persistent drought conditions in South Africa a customer (an international consumer goods producer with a production facility in Durban) experiences the pressure of limited availability of water. The ever dropping dam levels currently result in higher risk for intermittent water supply resulting in unplanned and forced production stops in case no water is available. Aquest Colsen ...


    By Colsen International b.v.

  • We purify our waste¬≠ water optimally

    Holzkirchen wastewater treatment plant achieves a new milestone in energy efficiency with AERsmart The Holzkirchen wastewater treatment plant has a clearly stated objective: “We purify our wastewater optimally.” For the municipal wastewater treatment plant, located 40 kilometres south of Munich, there is a requirement to operate in a way that is as resource-efficient as ...

  • Biofilm carriers / MBBR carrier media and their respective diffusion depth

    Within the biological wastewater treatment sector, it can increasingly be observed that biofilm carriers are applied in so-called Moving Bed Biofilm Reactors (MBBR). Thereby, the MBBR process is not only used to great success for the purification of domestic sewage but also in the sector of industrial wastewater and aquaculture systems. The availability of high-performance ...


    By Multi Umwelttechnologie AG

  • CeraQTM Ceramic Membranes Provide Robust Solution For Automotive Parts Manufacturing

    Project Background Ceramic membranes are growing in acceptance into the water and wastewater treatment industries due to their ability to operate at higher temperatures and wide chemical compatibility. This characteristic allows the membranes to be operated in high temperature appli- cations, difficult waste streams and applications where harsh cleaning chemicals are ...


    By QUA Group LLC

  • Reverse Osmosis Technology - Kuriverter Rc.

    Summary Applications using Reverse Osmosis membrane technologies are everywhere in our lives – from tiny under counter units polishing our drinking water through industrial units preparing water for processes or purifying effluents for reuse and massive seawater desalination plants producing thousands of m³ of drinking and irrigation water every day. The membranes used in this ...


    By Kurita

  • How LEDs Will Change Water Purification

    Ultraviolet (UV) light has been naturally purifying water for centuries. With clear skies, our sun can inactivate water-based pathogens in six hours minimum. Cloudy skies or unclear water causes imperfect conditions. These conditions allow for bacteria to grow and make natural water sources unsafe to use. Fortunately, we have developed several types of water disinfection, ranging from chemicals ...


    By AquiSense Technologies

  • Electrocoagulation and nanofiltration integrated process application in purification of bilge water using response surface methodology

    Marine pollution has been considered an increasing problem because of the increase in sea transportation day by day. Therefore, a large volume of bilge water which contains petroleum, oil and hydrocarbons in high concentrations is generated from all types of ships. In this study, treatment of bilge water by electrocoagulation/electroflotation and nanofiltration integrated process is ...


    By IWA Publishing

  • gaiasafe filter products for drinking water purification - Case Study

    Problem In some water works chlorination of drinking water is used to eliminate mikrobes. Chlorinated water may have disagreable taste and smell. Some water works use aluminium salts to clean the water. This leads to low concentrations of aluminium in drinking water. Today it is known that aluminium may be toxic to men. Old piping installations inside or outside private homes often where ...


    By gaiasafe GmbH

  • Identification of bacteria assimilating formaldehyde in a biological activated carbon filter by means of DNA stable isotope probing and next-generation sequencing

    Ozonation followed by a biological activated carbon (BAC) filter is a common process of advanced water purification. Ozone can generate formaldehyde (FA) as a harmful by-product, while the subsequent BAC filter is efficient at removing FA. FA adsorption is limited on activated carbon because of its hydrophilic property and low molecular weight. Thus, biological degradation by biofilms ...


    By IWA Publishing

  • Reference: Potable water disinfection in Luxembourg nature reserve

    The Obersauer Nature Reserve in the Luxembourg Ardennes is a natural paradise of valleys, wet meadows and forests. In the heart of the reserve is the Esch-sur-Sûre reservoir, which provides water for around 80% of the country's population. Clean potable water for Luxembourg The 3.8 km² reservoir above the community of Esch-sur-Sûre was built in the 1950s in response ...

  • How Thames Water reinvented its fast sand filters

    World best filter material for purification of drinking When algal blooms put the sand filters under pressure, Thames Water started its own in-house research into new filter materials. Not only did the effort cure the constraint, the use of new filter materials has saved millions in investments. Fast Cleaning To purify water with ...

  • Bedrichov Water Treatment Plant - Case Study

    By replacing the filter sand with Filtralite, Bedrichov Water Treatment Plant reduced energy cost by 75 %, doubled the production capacity of each filter and today delivers the best drinking water ever Time is running out The use of sand for water filtering is most likely the oldest method in history for treating water for consumption. Sand is still today widely used ...

  • Improved water and household water purification practices among orphans and vulnerable children in a multi-sectoral empowerment program in Eastern province, Kenya

    Water quality is an important determinant of diarrheal illnesses, especially affecting children in sub-Saharan Africa. Orphans and vulnerable children (OVC) in sub-Saharan Africa are at increased risk of poor quality drinking water, and therefore of diarrheal illness. The present study assesses primary drinking water source and typical household water purification among OVC households involved ...


    By IWA Publishing

  • Water and your health fact sheet

    Water is a vital nutrient, essential to every single chemical process that occurs in our bodies. Water makes up two-thirds of the human body, and 75 percent of the human brain is water. Staying adequately hydrated allows our bodies to function as best they can, yet nearly 75 percent of Americans are chronically dehydrated without ever knowing it. Everyone understands the importance of drinking ...


    By Kinetico International

  • Pediatric benefits fact sheet

    Because children have more delicate immune systems than adults, water contaminants pose a more serious threat to the young. Drinking only the highest quality water is one way that parents can contribute to keeping their children healthy, even before they are born. Pregnant women need to be especially careful of the water they drink. Certain levels of some water contaminants such as lead, nitrate ...


    By Kinetico International

  • The danger of arsenic in water and the technology to end with it

    AZUD has developed a technology that saves lives: the water purifiers plants AZUD DW DU are the perfect solution for arsenic removal using ultrafiltration membranes. In Latin America, AZUD DW DW supplies drinking water to decentralized villages that used to consume arsenic contaminated water. In ihe last two decades, in some countries of Latin America, people have consumed double the arsenic ...


    By Sistema Azud, S.A.

  • How big should urban green spaces be?

    With cities poised to add 2.5 billion more people by 2050, now is a perfect time to get strategic about urban design. One of the big questions planners face is the best way to accommodate both built environments and natural settings, which provide important services such as making oxygen, cleansing water, absorbing noise, ...


    By Ensia

  • Effect of ion (Al, Fe and Zn) co-doped TiO2 nanotubes on photocatalytic degradation of humic acids under UV/ozonation for drinking water purification

    O3/UV/TiO2 was used to effectively decompose humic acids (HAs) in drinking water. A series of Al-doped, Fe-doped, Zn-doped and co-doped TiO2 nanotubes were successfully synthesized by a hydrothermal method. According to the characterization of ion-doped TiO2 nanotubes, Al3+ and Fe3+ ions occupied substitutional positions in the crystal lattice, ...


    By IWA Publishing

  • The role of a hybrid phytosystem in landscape water purification and herbicides removal

    The performance of a hybrid phytosystem in landscape water purification and herbicides removal was investigated. The phytosystem operating in an arboretum is located in the Minhang Campus of Shanghai Jiao Tong University, China. The phytosystem is composed of two purification stages: sedimentation Stage 1 without external air supply; and Stage 2 with an external air supply. Stage 2 is also ...


    By IWA Publishing

  • Evaluating the performance of water purification in a vegetated groundwater recharge basin maintained by short-term pulsed infiltration events

    Infiltration of surface water constitutes an important pillar in artificial groundwater recharge. However, insufficient transformation of organic carbon and nutrients, as well as clogging of sediments often cause major problems. The attenuation efficiency of dissolved organic carbon (DOC), nutrients and pathogens versus the risk of bioclogging for intermittent recharge were studied in an ...


    By IWA Publishing

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