Water Monitoring Standards Articles

  • Water - Case Study

    Company Created in 1981, this company provides water and wastewater services to millions of residents of one of Europe's largest and fastest-growing cities. It is under pressure to provide water to ever-higher standards and to become more cost-efficient, while coping with increasing demand. Its large network of pumping stations and treatment works are spread across a wide area. ...


    By Artesis

  • WQA Sustainable management standard

    Sustainability Program and Green Product Certification Scheme for the Water Treatment Industry The Water Quality Association (WQA) partnered with thinkstep to develop a sustainability program for the water treatment industry. The overall goal of the program is to provide meaningful sustainability performance information about products and the companies that make them to ...


    By thinkstep

  • Effect-based trigger values for in vitro and in vivo bioassays performed on surface water extracts supporting the environmental quality standards (EQS) of the European Water Framework Directive

    Abstract Effect-based methods including cell-based bioassays, reporter gene assays and whole-organism assays have been applied for decades in water quality monitoring and testing of enriched solid-phase extracts. There is no common EU-wide agreement on what level of bioassay response in water extracts is acceptable. At present, bioassay results are only benchmarked against each other but not ...

  • Merck KGaA, Darmstadt, Germany News on Water 2018, Volume 1

    This volume of News on Water highlights: New ISO Standard 17943 for Determination of VOCs in Water by HS-SPME and GC-MS Extraction of Organic Compounds from Water, Using ENVITM-18 DSK Solid Phase Extraction Disks Watercol columns Certified Reference Materials ready-to-use for water and waste water analysis ...

  • Salmon Stream Warm Water Monitoring - Cook Inletkeeper - Case Study

    Cook Inletkeeper is a community-based nonprofit organization that combines advocacy, education and science toward its mission to protect Alaska’s Cook Inlet watershed and the life it sustains. The Cook Inlet watershed is the most populated and fastest-growing region in Alaska; it is also home to the state’s renowned wild salmon runs, some of which are at great risk due to climate and ...


    By BeadedStream

  • California Prepares for a Drought-Prone Future Under Stringent Title 22 Water Reuse Standards

    Fluence’s first MABR plant in mainland U.S. gives California new medium- and small-scale treatment options that comply with the state’s stringent standards for water reuse ...


    By Fluence Corporation

  • How to identify issues in water quality

    Water quality can mean different things to different people and therefore depends on what standard of quality one is looking for, for example, water may be fine for fish to live in but lack the quality required for human consumption. To measure the quality of water accurately, tests are carried out to identify several key indicators. These characteristics are then compared ...


    By Aquaread Limited

  • Oil and grease in waste water

    Determination of oil and grease in waste water according to Standard Methods AWWA 5520 This Application Note describes the extraction and determination of oil and grease from waste water samples following Standard Methods 5520 part D (Soxhlet Extraction Method). “Oil and grease” is defined as any material recovered as a substance soluble in the solvent. Therefore, compounds ...


    By BÜCHI Labortechnik AG

  • Design and operation of a rainwater for drinking (RFD) project in a rural area: case study at Cukhe Elementary School, Vietnam

    Since 2014, a well-designed rainwater for drinking (RFD) project has been successfully operating at Cukhe Elementary School, near Hanoi, Vietnam. During that time, daily rainfall data, water consumption, water quality and questionnaires to the community were prepared. Several concerns over the design and operation of RFD projects, such as lack of sufficient rainfall data, water quality ...


    By IWA Publishing

  • Spatiotemporal variation of bacterial water quality and the relationship with pasture land cover

    Pathogens are a major cause of water quality impairment and public health concern world-wide. In the United States, each state is tasked with developing water quality standards (WQS) to protect the designated use(s) of waterbodies. Several streams in the Illinois River Watershed in northwest Arkansas are currently listed as impaired due to elevated levels of pathogens. Our objective was to ...


    By IWA Publishing

  • NSF/ANSI Standard 61: Certification vs. Compliance

    Brentwood is committed to delivering high-quality products and services to our customers and the water industry. For this reason, we have invested, and continue to invest, in ensuring our products are certified to the NSF/ANSI Standard 61 for water treatment and distribution applications. Certification Before a product can earn NSF certification, every aspect of its development is ...


    By Brentwood Industries, Inc.

  • National drinking water targets – trends and factors associated with target-setting

    We examine how national targets change with time and show that no consistent pattern exists across all countries examined for this article during the 1980–2013 period. Instead, countries fall into different trend types including constant, increasing, and decreasing national targets with time. We found that level of coverage is one likely factor in determining the national target of a country, ...


    By IWA Publishing

  • Spatiotemporal distribution of nitrogen and phosphorus in alpine lakes in the Sanjiangyuan Region of the Tibetan Plateau

    To provide a theoretical basis for alpine source lake protection, ten samples were taken from each lake annually from 2012 to 2015. Each year, the various species of nitrogen and phosphorus nutrients were measured. The average contents of nitrate nitrogen, ammonia nitrogen, nitrite nitrogen, total phosphorus, and total nitrogen in the four lakes are 0.195–0.0 mg/L, 0.038–0.143 mg/L, ...


    By IWA Publishing

  • How to Choose a Company for Water Treatment Systems

    An effective water treatment system is vital, but how do you know that a system is going to work for you? There are a few things that you can look for from the candidates that you’re considering that will help you determine who is a better option to choose to help you improve your system. Their Success Rate If they don’t want to tell you, that lack of transparency ...

  • Monitoring hydrocarbons in Bilge water - Case study

    The Situation Various processes onboard ships, such as machinery wash-down, maintenance, and leakage, generate oily wastewater. This contaminated water flow collects in the bilge of the ship. Marine diesel, lubricating oils, grease, as well as other contaminants may be present in bilge water. The bilge water is discharged overboard, with oil and grease concentrations in the discharged ...

  • A new hybrid drought-monitoring framework based on nonparametric standardized indicators

    A drought is a multi-dimensional event characterized by changes in the atmospheric and land conditions. Hence, monitoring a single drought indicator may be insufficient for water management. The hybrid drought index (HDI) is presented as a nonparametric composite indicator for monitoring multiple components of the hydrologic cycle. The properties of the HDI can be summarized as follows: (1) ...


    By IWA Publishing

  • A Look Ahead: What Is Microlearning?

    The Network of Corporate Academies (NOCA) and the Society for Human Resource Management (SHRM) report 40 percent of employees who receive poor training leave the job within a year. Considering how expensive employee turnover is to any organization, offering sufficient training is a must. To help address this issue, microlearning courses are gaining momentum and changing the way employees are ...


    By TargetSolutions

  • Interactive monitoring in reservoirs using NUSwan – preliminary field results

    Water quality monitoring of large freshwater bodies is usually slow and laborious, resulting in very sparse samples. This paper presents the design and preliminary field results from a network of low-cost mobile robots called NUSwan, a system aimed at addressing this issue. NUSwan robots can autonomously traverse a reservoir to provide real-time water quality data over the Internet, and allow ...


    By IWA Publishing

  • Hydrochemistry and water quality assessment of the Maroon River in Behbahan area, SW Iran

    Assessing water quality is important in optimizing water usage. In this study, six water samples were taken from points along the Maroon River in order to evaluate its quality. The concentrations of Cl−, SO42−, HCO3−, CO32−, NO3−, K+, Mg2+, Na+, and Ca2+, as well as ...


    By IWA Publishing

  • Fifteen years of experience with standardized reference radiometers for controlling low-pressure UV disinfection plants for drinking water

    The only practicable way to control the disinfection capability of a UV disinfection plant for drinking water all the time is to use a UV radiometer. According to the Austrian Standard M5873, this plant radiometer is a standardized part of each plant. The standard defines a so-called reference radiometer (RRM) as well. This is necessary because a plant radiometer has to be controlled ...


    By IWA Publishing

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