water rule Articles

  • Development of Microbial Growth in Fuels

    Microbial contamination is not specific to any one fuel type - marine, aviation, automotive and home heating fuels are all susceptible. Similarly there is no single specific organism that can be identified as being responsible for degradation and spoilage. As a general rule, wherever fuel and water come into contact in a storage or distribution system microbial contamination is likely to ...


    By AXI International

  • Dynamic cooperation in international law and the shadow of state sovereignty in the context of transboundary waters (Part 2)

    Introduction Part 1 International law and the duty to cooperate Origins of the duty to cooperate in international law Transboundary water resources management as a case study for the duty to cooperate: sovereignty as the grand challenge The global water challenge with a focus on transboundary water ...


    By IWA Publishing

  • UK Waterboards - Case Study

    Meeting consent levels with continuous sandfiltration A number of sewage treatment works from Water Boards in the UK must meet stricter rules with regard to TSS levels and TSS related BOD. Many Water Boards opted for the installation of ASTRASAND® continuous sand filtration because it obtains the required effluent consent levels. Another great advantage is that the robust ...


    By Paques Technology B.V.

  • Geodrilling: Managing Water Supply in Italy

    In recent years there has been significant reorganisation in the Italian water sector to conform to the rules set out in the European Union Water Directive concerning the control of water pollution and the consistency of water tariffs. There have been some successes, particularly where companies in the industrial and commercial sectors, who manage their own water supplies, have had some ...


    By Geoquip Water Solutions

  • Hybrid genetic algorithm in the optimization of energy costs in water supply networks

    Efficient operation of water distribution systems is linked with the assurance of water availability to the population. In general, the operational rules applied to water distribution networks have as a sole objective the continuity of the water supply and disregards saving energy costs related to the operation of the pumps. The task of determining optimal operational procedures involves several ...


    By IWA Publishing

  • CHINA UPDATE - a regular briefing on major EHS regulatory developments in China

    Untitled Document CHINA UPDATE provides a regular briefing on major EHS regulatory developments in China for clients of ENVIRON (Shanghai) Co., Ltd. In This ...


    By ENVIRON

  • Filter backwashing: When and how

    Backwashing filters is a necessary and important part of the filtration process. Many operating problems associated with the filtration process can be traced to delayed or inadequate backwashing. Producing a high-quality and low turbidity filtered water depends on having clean media free of cracks and mudballs. The Interim Enhanced Surface Water Treatment Rule, promulgated on Dec.16, 1998, lowers ...


    By Entech Design, Inc.

  • Evaluating changes in water institutions: methodological issues at the micro and meso levels

    ABSTRACT Institutions (formal rules) governing water allocation and use are often critical to a nation's development and prosperity. It is often necessary to change water institutions as economic, physical and political circumstance change. In this paper, a framework is presented to help understand the potential and need for change in water institutions. The pressure for institutional change ...


    By IWA Publishing

  • Soil CEC and Selectivity Sequence for Mercury (II) Ion

    Abstract Mercury is one of the most hazardous air and water pollutants. Since the issuance of the Clean Air Mercury Rule for coal-fired electric boiler utilities in March 2005, numerous scientific researches have focused on the fate and transport of mercury in both atmosphere and aqueous environment. The issue of aqueous mercury transport as the major mercury transport mechanism becomes more and ...


    By DAA Consultants

  • Discovering Reservoir Operating Rules by a Rough Set Approach

    An integrated Rough Set approach is proposed and implemented to discover the historical operating rules of a Sicilian irrigation purpose reservoir. Operating rules are derived by expressing monthly releases from the reservoir as functions of stored volume, inflowand release during a 35-years period. This is accomplished through the Rough Set approach as implemented in the Rose package and the use ...


    By Springer

  • A new systematic technique for retrofit of water network

    This paper presents a new systematic technique for the retrofit of existing water network based on pinch analysis. This technique, which was applied on a paper mill, consists of three main steps: Network Diagnosis, Network Retrofit and Network Evolution. Network diagnosis step provides a good understanding of the existing water network through the use of a new tool called the Concentration Block ...


    By Inderscience Publishers

  • Advanced Water Treatment and Evaporation Systems Produce High Efficiency

    AQUATECH IS CHANGING THE GAME in the water recycling industry through its SmartMOD Modular Evaporator System and HEVAP High Efficiency Evaporation Process for SAGD Water Treatment. For over 30 years, the company has focused exclusively on desalination, water reuse, and zero liquid discharge with water purification technologies suited for global industrial, upstream and ...

  • Water-level regulation for freshwater management of Bosten Lake in Xinjiang, China

    The Bosten Lake is the largest inland freshwater lake of China, in which water level and salinity fluctuate due to the imbalance between inflows and outflows under climate change and anthropogenic activities. This paper employed system dynamics as an effective methodology to grasp the regulation rules for sustainable freshwater management of the Bosten Lake. Results show the following. (1) ...


    By IWA Publishing

  • A plea for patience and research on surface water connectivity in the U.S. Clean Water Act

    While winter has proven to be one of the coldest and snowiest seasons on record throughout much of the United States, the coming summer could be unseasonably warm in Washington, DC if the United States Environmental Protection Agency (USEPA) successfully implements its reinterpretation of one of the nation's proudest environmental regulatory accomplishments, the Clean Water Act (CWA). In 2013, ...


    By John Wiley & Sons, Ltd.

  • Illuminating Ultraviolet Disinfection for High-Level Reuse in Florida

    Chlorine has been the mainstay of the wastewater disinfection industry for more than 100 years due to its effectiveness, low cost and availability. However, due to various problems associated with chlorine, the Hillsborough County, Florida Water Resource Services Department decided to replace the high-level reuse water chlorine gas disinfection system at the Valrico Advanced Wastewater Treatment ...

  • The 7 Tips for Highly Effective Stormwater Management By-Laws

    ABSTRACT The Stormwater Phase II Final Rule, which applies to small municipal separate storm sewer systems (MS4s) in “urbanized areas”, requires communities across the country to adopt local legislation that will control the harmful effects of stormwater runoff and prohibit non-stormwater pollution from entering the drainage system. Adopting a thoughtful and comprehensive stormwater by-law ...

  • Transboundary water allocation under water scarce and uncertain conditions: a stochastic bankruptcy approach

    Designing a feasible and stable water sharing mechanism for transboundary river basins is a big challenge. The stochastic and uncertain characteristics of water flow in these rivers is among the main reasons which make the formation of cooperative coalitions with feasible water allocations and self-enforceable allocation agreements difficult. When the water in these river basins is scarce the ...


    By IWA Publishing

  • An Islamic perspective on food security management

    Islamic regulation has a balanced management approach to food management and towards attaining sustainable food security. This approach includes many social, spiritual, resource supply, security, and institutionally-related perspectives. If harmonization between Allah's1 orders and Moslem behavior was maintained, either within or outside an Islamic state, food security would already be happening, ...


    By IWA Publishing

  • The influence of city water consumption on the water balance and quality of drinking water supply with implications for altered operating rules

    In the period 1990–2006, the decrease in water consumption of Tallinn, the capital of Estonia, determined both the input and output of the water balance of Lake Ülemiste, the drinking water reservoir of the city as well as its hydraulic retention time (HRT). In 2006, the city's water consumption accounted for only a quarter of that in 1990.The role of regulated inflow in the water balance ...


    By IWA Publishing

  • CO2 degasifiers packed with LANPAC cut the cost of drinking water pH adjustment to comply with EPA Lead and Copper Rule.

    After the phase-out of leaded gasoline and the ban on lead-based pigments in house paint, concerned has focused on the risk of lead exposure from drinking water due to corrosion of old plumbing containing lead pipe or solder. To reduce ...


    By Lantec Products, Inc.

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