water current Articles

  • 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

  • Importance of Inspecting Reservoirs

    Inspecting Reservoirs – what is the importance of them, why they are inspected, and how ROVs help pave the way for low-cost, regular maintenance. What is a Reservoir? Deriving from the French word réservoir meaning “storehouse,” a reservoir is exactly that – a storage place for water. More often than not, these bodies of water are ...


    By Deep Trekker Inc.

  • 10 Reasons why you should continuously monitor low temperature and liquid chemical sterilants for worker safety

    1. Sterilant chemicals are highly toxic Low temperature and liquid chemical sterilants are designed to kill all microorganisms including resistant spores and if they were not toxic, they would not be effective in sufficiently high concentration to destroy all microbial life including the chemically resistant sporicidal forms of certain ...


    By ChemDAQ, Inc.

  • The Phase 1 Environmental Assessment

    In today’s world where every property is subject to potential environmental risks a Phase 1 Environmental Site Assessment or ESA is an appropriate action to take. An ESA can help determine if the property has been contaminated by previous or current activities. The ESA can help protect the purchaser of a property from environmental risks prior to the closing on a property.  Lenders ...

  • How a contract research lab advanced its polymer characterization capabilities

    Realizing the Advantages of Ultra-High-Performance Size Exclusion Chromatography Compared to GPC Intertek is a global provider of quality and safety services designed to help businesses improve products, assets and processes, overcome market constraints and reduce risks. From auditing and inspection, to testing, training, and certification, Intertek enables customers to meet end ...


    By Waters Corporation

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • Los Angeles County WRRF Embraces Codigestion

    Technology to produce food waste slurry key to project implementation - and helps generators comply with California organics recycling mandates. The Sanitation Districts’ JWPCP in Carson (CA) treats an average of 280 million gallons/day of wastewater. One of the two anaerobic digestion tanks above has been used for codigestion, with the second serving as the control. Photos ...


    By BioCycle Magazine

  • Current Trends in Modelling Water Distribution Systems

    Untitled Document Hydraulic Modelling is emerging from the infrastructure planning offices of our water utilities, where it continues to play a vital role in optimising capital investment projects, to take a ...


    By Innovyze

  • European waters - current status and future challenges - a synthesis

    The Europe 2020 strategy is the European Union's strategy for economic growth in Europe over the next decade. This strategy envisages the development of a 'greener', more environmentally friendly economy in Europe. Sustainable water management is a critical element of this green economy because healthy and resilient ecosystems provide the services needed to sustain human well‑being and our ...

  • Assessment of current and emerging practice in corporate water reporting

    Recognizing the urgency with respect to addressing the emerging global water crisis, the UN Secretary-General, in partnership with a number of international business leaders, launched in July 2007 a new initiative – The CEO Water Mandate – under the auspices of the UN Global Compact. The initiative was developed with the understanding that the private sector, through the production of goods and ...


    By Pacific Institute

  • Current and Future Wastewater Reuse in Texas

    ABSTRACTThe reuse of treated wastewater effluent has served as a source of water supply in Texas for decades. While this has often occurred without detailed planning, the formal, planned reuse of treated wastewater effluent is increasing rapidly in the state, especially in the area around the Dallas-Fort Worth metroplex. To plan for the increased water demand, Texas has been divided into 16 ...

  • Advances and current changes in cellular telemetry

    Recent advances in cellular technology are offering more efficient and reliable wireless transmission of data between remote locations and the central collection points.Wireless telephone technology has been around in various forms since the 1940’s. Stevens was the first company to introduce telephone telemetry technology for remote water monitoring with the Telemark in 1939. In 1969, Bell ...

  • HCL System Exceeds Current Regulations

    Chemron manufactures high-quality specialty chemicals and surfactants for personal care products, industrial, institutional, oil field, mining, coatings, lubricants and water treatment. Some of the operations result in the creation of hydrochloric acid with high variable rates. As expressed by Bill Frost, of Chemron: “Chemronmaintains a strong environmental commitment, which views regulations as ...


  • Effect of alternating and direct current in an electrocoagulation process on the removal of cadmium from water

    The main objective of this study was to investigate the effects of AC and DC on the removal of cadmium from water using iron as anode and cathode. The various operating parameters on the removal efficiency of cadmium were investigated. The results showed that the optimum removal efficiency of 98.1 and 97.3% with the energy consumption of 0.734 and 1.413 kWh/kL was achieved at a current density of ...


    By IWA Publishing

  • Prediction of water and wastewater networks rehabilitation based current age and material distribution

    Ageing drinking water, stormwater and sewer pipe networks imply an increased degree of rehabilitation. The need for rehabilitation can be predicted using lifetime distribution functions together with current network age and material distribution. In Sweden, current age and material distribution is neither documented on a national level, nor for many water utilities on a local level. In this ...


    By IWA Publishing

  • Analysis of the current knowledge gaps in the implementation of the Water Framework Directive

    The general objective of the REBECCA project1 is to provide relevant scientific support for the implementation of the Water Framework Directive (WFD). The two specific aims of the project are, firstly, to establish links between ecological status of surface waters and physico-chemical quality elements and pressures from different sources, and, secondly, to develop and validate tools that member ...


  • Current status, problems and control strategies of water resources pollution in China

    The surface water of 10 major river systems across China has been under intermediate pollution with striking eutrophication problems in major lakes (reservoirs). More data from the Ministry of Environmental Protection of China showed that underground water in 57% of monitoring sites across Chinese cities was polluted or extremely polluted. Rural water pollution, the rising number of ...


    By IWA Publishing

  • Water infrastructure security against the current terror threat in the United States

    On May 2, 2011, the United States (U.S.) President Barack Obama announced that the U.S. forces killed Osama Bin Laden, the world's most dangerous terrorist leader that killed approximately 3000 Americans on September 11, 2011 (9/11) terror attacks.  Currently, the U.S. intelligence is in possession of valuable materials of Al Qaeda operations (Thomas, 2011).  Terrorist attack plots ...


    By IWA Publishing

  • Decentralised systems – definition and drivers in the current context

    This paper explores the current context for decentralised approaches in the provision of urban water services. It examines the recent history of decentralised systems' implementation in Australia and identifies its drivers. The drivers included addressing capacity constraints of centralised systems, mitigating the environmental impact of urban development, and increasing the resilience of ...


    By IWA Publishing

  • Current pollution status of Yangtze River and controlling measures

    The concentration of Persistent Organic Pollutants in Yangtze River in China is increasing steadily, especially in the downstream, where the drainage is often discharged into the water body without any treatment. In this study, the pollution status, trend of mainstream and Three Gorges area are analysed based on the statistical data of the water quality in the past years. Results indicate that ...


    By Inderscience Publishers

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