oil-in-water event Articles

  • Protective coatings for Underground utility concrete structures

    As our cities and municipalities grow older, the utility and wastewater infrastructure and corrosion preventive program for underground asset protection are aging with them. Municipalities and Utility Companies are struggling to handle rehabilitation measures and effective corrosion prevention programs to deal with prolonging the life of their buried assets. More municipalities are in the process ...


    By Sauereisen Inc.

  • How to handle key sustainability issues of products and ingredients in the cosmetics industry

    How can brands determine and respond to the key issues regarding sustainability of their products and ingredients? The issue was discussed at the recent Sustainable Cosmetics Summit European Edition in Paris. Speaking at the event Margarida Gama, Thinkstep, business sustainability software and services provider, explained one route to determining and responding to sustainability concerns at ...


    By thinkstep

  • Recent Federal Developments

    TSCA/FIFRA EPA Extends Comment Period For Draft Guidance For Pesticide Registrants On Notifications, Non-notifications, And Minor Formulation Amendments: On October 5, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice of extension of the comment period for the draft guidance  ...


    By Bergeson & Campbell, P.C.

  • Fuel preparation technology – the latest safety considerations

    The specifications for new fuel preparation technologies are becoming increasingly sophisticated, as industry innovation continues apace. But when it comes to investing in waste shredders that help manufacture cement fuels, which criteria should top the procurement wish-list in 2018? With more than 25 years’ experience in this sector, Peter Streinik, head of UNTHA’s waste shredding ...


    By UNTHA Shredding Technology

  • Train derailment prompts contaminated land investigation

    On March 30th 2015 a long freight train, transporting a variety of goods including lumber and chemicals, wound its way through the state of Mississippi. At around 5pm, part of the train failed to negotiate a curved portion of the track in a rural area near Minter City, resulting in the derailment of nine railcars, one of which leaked chemicals onto agricultural farmland and woodlands. Emergency ...


    By Gasmet Technologies Oy

  • Oil Water Separator Maintenance

    Oil water separators (OWS) can be co$tly to maintain, $20,000 or more on average per cleaning and if not properly managed, can be very expensive conduits of pollution. Have you taken steps to minimize the effects and consequences on your operating co$t? When was your facility’s last OWS maintenance ...

  • Reducing the sensitivity of the water quality index to episodic events

    We demonstrated a general relationship between water quality index (WQI) values and indices of benthic community composition for a set of 32 streams from British Columbia and Ontario. Streams that produced lower WQI values tended to have benthic communities characteristic of degraded water quality. Streams, in contrast, that produced higher WQI scores tended to have a fauna characteristic of high ...


    By IWA Publishing

  • Water shortages and extreme events: a call for research

    Water shortages as a result of extreme weather events, such as flooding and severe cold, have the potential to affect significant numbers of people. Therefore, the need to build robust, coordinated plans based on scientific evidence is crucial. The literature review outlined in this short communication was conducted as part of a joint Drinking Water Inspectorate and Health Protection Agency (now ...


    By IWA Publishing

  • Catchment process affecting drinking water quality, including the significance of rainfall events, using factor analysis and event mean concentrations

    To ensure the protection of drinking water an understanding of the catchment processes which can affect water quality is important as it enables targeted catchment management actions to be implemented. In this study factor analysis (FA) and comparing event mean concentrations (EMCs) with baseline values were techniques used to asses the relationships between water quality parameters and linking ...


    By IWA Publishing

  • Pre-event water contributions to runoff events of different magnitude in pre-alpine headwaters

    Precipitation and catchment characteristics of mountainous headwaters can vary largely within short distances. It remains unclear how these two factors determine the contribution of event water and pre-event water to stormflow. We investigated this in five neighboring headwaters with high annual precipitation amounts (>2,000 mm y−1) in a steep pre-alpine region in Switzerland. Rainfall and ...


    By IWA Publishing

  • Events organisers committed to green - case study

    Stillwater Sport and Entertainment approached NCC in 2009 to assist with writing up an Environemental Management Plan for the ProNutro African Xtrail. Stillwater Sport and Entertainment, a leader in the event management and brand activation industry, strives for bigger, better green events with the endorsement and assistance of NCC Environmental Services. Stillwater Sport and Entertainment ...

  • An event-based hydrologic simulation model for bioretention systems

    Bioretention systems are designed to treat stormwater and provide attenuated drainage between storms. Bioretention has shown great potential at reducing the volume and improving the quality of stormwater. This study introduces the bioretention hydrologic model (BHM), a one-dimensional model that simulates the hydrologic response of a bioretention system over the duration of a storm event. BHM ...


    By IWA Publishing

  • EPA to host events soliciting information on regulatory reforms

    The U.S. Environmental Protection Agency (EPA) has announced that it will be hosting several events to gather input on regulatory actions that could be repealed, replaced or modified as part of EPA’s regulatory reform efforts under Executive Order (EO) 13777.  The Office of Pesticide Programs (OPP) will host a ...


    By Bergeson & Campbell, P.C.

  • Large Precipitation Events are Critical in Replenishing Groundwater Resources

    Large precipitation events that occur about every 10 years are a critical source of recharge for replenishing groundwater resources, according to a new study by the U.S. Geological Survey and the Bureau of Reclamation. Groundwater is a vital source of water in the western United States, and will be increasingly ...

  • Integrated actions in the management of critical hydrologic events

    Owing to the increase in urban populations, there has also been an increased incidence of critical events, especially those related to floods and landslides. Since the implementation of the National Civil Defense System in Brazil, a focus on disaster management is no longer the answer when assisting those affected; instead, the answer has become managing disaster risk, in addition to the ...


    By IWA Publishing

  • Gully and overland modeling during extreme events

    Consultants JBA have been involved in modeling gully and overland flows during extreme events as part of the Interreg IIIB NWE (North West Europe) ’urban water’ project, which is being undertaken by Renfrewshire Council in Scotland. Research for this project was commissioned following flooding in 1994 and 1999. The project takes a strategic look at urban flood risk management on a large scale, ...


    By Innovyze

  • An agent-based modeling framework for sociotechnical simulation of water distribution contamination events

    In the event that a contaminant is introduced to a water distribution network, a large population of consumers may risk exposure. Selecting mitigation actions to protect public health may be difficult, as contamination is a poorly predictable dynamic event. Consumers who become aware of an event may select protective actions to change their water demands from typical demand patterns, and new ...


    By IWA Publishing

  • Sound recording to characterize outdoor tap water use events

    Obtaining disaggregated water use at the home typically involves expensive smart metering. In this study, water use events at the outdoor tap were captured using recorded sound. Outdoor taps at 10 homes were fitted with small-sized microphones and digital sound recorders. Sound files recorded over a 1-month period were used in the analysis. In the preliminary analysis, a human operator browsed ...


    By IWA Publishing

  • Optimal sensor placement for event detection and source identification in water distribution networks

    This study focuses on the optimization of sensor placement with respect to the source identification and event detection. A multi-objective algorithm is used to solve the optimization problem. The numbers of possible source nodes for contamination events associated with the solutions on the Pareto fronts from the proposed method and benchmark method are calculated under the same configuration ...


    By IWA Publishing

  • Geostatistical techniques for approximate location of pipe burst events in water distribution systems

    This paper focusses on the customisation and further enhancement of the recently developed data-driven methodology for the automated near real-time detection of pipe bursts and other (e.g. sensor faults) events at the district metered area (DMA) level. Assuming the availability of pressure/flow data from an increased number of sensors deployed in a DMA, the aim is to: (i) overcome the ...


    By IWA Publishing

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