real-time water data Articles

  • Real-time O2 monitoring in VCM plants using the In-situ laser gas analyzer – Case Study

    Vinyl Chloride Monomer (VCM) Vinyl Chloride Monomer is a colorless, flammable gas. It is of very great importance as feedstock in the production of polyvinyl chloride (PVC), one of the world´s most versatile thermoplastics. Originally, acetylene has been used as feedstock for VCM production but was replaced stepwise by the inexpensive ethylene. Complete changeover to almost ...

  • The Time-Value of bioCycle

    BIOCYCLE’S 50th anniversary party in San Diego provides a perfect opportunity to write about the enormous contributions that have been made over the last five decades. Thinking about all the forward progress in organics utilization since 1960, I am humbled by the BioCycle legacy. To really appreciate the enormity of the biological utilization challenge 50 years ago, we need to reflect on what was ...


    By BioCycle Magazine

  • The influence of rainfall time resolution for urban water quality modelling

    The objective of this paper is the definition of a methodology to evaluate the impact of the temporal resolution of rainfall measurements in urban drainage modelling applications. More specifically the effect of the temporal resolution on urban water quality modelling is detected analysing the uncertainty of the response of rainfall–runoff modelling. Analyses have been carried out using ...


    By IWA Publishing

  • Time is of the essence in plastics

    Introduction Determining the moisture content in plastics is an important step in the extrusion and molding process of many industrial resins.  Excessive moisture content can lead to microscopic steam pockets that can blister or weaken the integrity of the molded product.  Plastic pellets in a saturated or ‘wet’ state can also mislead buyers of bulk plastic since ...


    By Arizona Instrument LLC

  • Generation of synthetic cross-correlated water demand time series

    This paper presents a procedure for generating synthetic district-level series of hourly water demand coefficients cross-correlated in space (between districts) and time. The procedure consists of two steps: (1) generation of hourly water demand coefficients which respect, for each hour of the day, pre-assigned means and variances; and (2) introduction of the cross-correlation at different time ...


    By IWA Publishing

  • Is it time to rethink recycling?

    If our current approach to recycling isn’t the best for the economy or the environment, why do we do it? Criticize recycling and you may as well be using a fume-spewing chainsaw to chop down ancient redwoods, as far as most environmentalists are concerned. But recent research into the environmental costs and benefits and some tough-to-ignore market realities have even the most ...


    By Ensia

  • Hey, America: It’s time to talk about the price of water

    Recent woes have drawn unprecedented attention to the worth of fresh, clean water. Can it change the way we pay for the world’s most undervalued resource? This summer, a 90-year-old water pipe burst under Sunset Boulevard in Los Angeles, sending a geyser 30 feet into the air and a flood of troubles over the UCLA campus. Raging water and mud trapped five people, swamped 1,000 cars ...


    By Ensia

  • Sustainability: Time to Get in the Real Game - The sustainability victories we are claiming these days are still marginal to the core work of the world.

    “Corporate sustainability reporting is dead.” Not the words of a anti-corporatist radical green — but of Peter Bakker, president and CEO of the World Business Council for Sustainable Development, on stage ...


    By Ensia

  • How data and analytics are keeping Philly’s water safe

    CH2M assisted Philadelphia to implement a Surveillance and Response System (SRS) demonstration project under the U.S. Environmental Protection Agency’s (EPA’s) Water Security Initiative. CH2M Global Director Smart Cities and Senior Technology Fellow Dr. Avinash S. Patwardhan and Ken Thompson, CH2M Deputy Director Intelligent Water Solutions and Senior ...


    By CH2M Hill Companies, Ltd.

  • Strategic Planning for Water Loss Reduction with Imprecise Data

    Water utilities particularly in the developing countries continue to operate with considerable inefficiencies in terms of water and revenue losses. With increasing water demand and scarcity, utilities require effective strategies for optimum use of available water resources. Often the information needed for strategic planning is inadequate and decisions have to be made on the basis of limited and ...


    By IWA Publishing

  • Aqua data: Automatically capturing, mapping & sharing latest water quality data on the web

    Abstract This year Shoalhaven City Council (SCC) received the Local Government Award for Excellence in Overall Environmental Management at the prestigious United Nations of Australia World Environment Day Awards. In part this was in recognition of the considerable amount of time and money SCC invests on monitoring and reporting Water Quality across its Drinking Water, Effluent Treatment, ...

  • Progress on water data integration and distribution: a summary of select US Geological Survey data systems

    Critical water-resources issues ranging from flood response to water scarcity make access to integrated water information, services, tools, and models essential. Since 1995 when the first water data web pages went online, the US Geological Survey has been at the forefront of water data distribution and integration. Today, real-time and historical streamflow observations are available via web ...


    By IWA Publishing

  • A New Strategy to Improve Water Quality—One Targeted Watershed at a Time

    Water quality in the United States remains a major environmental and policy challenge. Water pollution is also a growing and serious problem across much of the world. Tackling water quality problems, particularly from diffuse sources such as agricultural farm fields, is a substantial challenge and much can be learned from the U.S. experience. ...

  • Example of water level data logger use - case study

    Geo Kamp Limited is pleased to present a typical hydrogeologic project using Heron Water Level Data Loggers (referred to as the dipperLog). The accompanying hydrographs represent the data collected for a Test Well located near Lake Simcoe (north of Toronto) in 2010. It was difficult to coordinate the schedule of the water well contractor due to inclement weather (bitterly cold) and the project ...


    By HERON Instruments Inc.

  • A Calgary Wastewater Treatment Plant Finds Real-Time Information on Effluent Quality Critical to Achieving Consistent Performance in Biological Nutrient Removal

    In 1994, the Bonnybrook Wastewater Treatment Plant in Calgary, Alta., completed the first phase of an upgrade to biological nutrient removal (BNR) after several years of testing. Bonnybrook was not the first treatment plant to upgrade bioreactors for nutrient removal: Other communities had struggled with the technology. Bonnybrook operators determined that real-time information on final effluent ...


    By ASA Analytics

  • Water Quality Data Logger for Monitoring Coal Mine Runoff

    Water Quality Monitoring Solutions from dataTaker CAS DataLoggers provided an intelligent water quality data logging solution for an open-cut coal mine to monitor high salinity water runoff into local retaining ponds with a Water Quality Data Logger. The water from these retention ponds could only be released into the local river system when it was of sufficient quality to have no effect on the ...


    By CAS DataLoggers

  • Water distribution model for decision-making with updatable data links

    From February 2011 to December 2012, the Tallinn Water Company, AS Tallinna Vesi (ASTV), aimed at improving the previous hydraulic model creation procedures so that the model can be operatively updated through the available geographic information system, client information system (Navision), supervisory control and data acquisition system (SCADA). The goal of the project was to analyse various ...


    By IWA Publishing

  • Quality Data Management: An Essential Component Of US Water Infrastructure

    The standards for environmental testing are more rigorous and far reaching than ever. At the same time, the U.S. water infrastructure has reached the age where replacement is critical. Laboratories and testing facilities trying to address both issues should consider implementing a Laboratory Information Management System (LIMS). A LIMS, which replaces paper-based systems, can increase sample ...

  • On data requirements for calibration of integrated models for urban water systems

    Modeling of integrated urban water systems (IUWS) has seen a rapid development in recent years. Models and software are available that describe the process dynamics in sewers, wastewater treatment plants (WWTPs), receiving water systems as well as at the interfaces between the submodels. Successful applications of integrated modeling are, however, relatively scarce. One of the reasons for this ...


    By IWA Publishing

  • Adsorption mechanism of As(V) and As(III) on Fe–Mn binary oxides in synthetic and real water matrices

    A series of Fe–Mn binary oxides with different Fe:Mn ratios (1:1, 3:1, 6:1, 9:1) were synthesized to investigate the optimal Fe:Mn ratio for the removal of As(III) and As(V). Batch experiments were performed to determine the rate of adsorption and equilibrium isotherms. Adsorption kinetics were well described by the pseudo-second-order kinetic model for both As(III) and As(V). The adsorption ...


    By IWA Publishing

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