water discharge Articles

  • 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 ...

  • Advancements in Scaling Calculations and an in depth look at Antiscalant dosing for stressed waters and high recovery systems

    Abstract Over the past few decades the Reverse Osmosis (RO) industry has observed an increase in applications in challenging waters. Water sources that were never considered suitable for RO are now commonplace, including municipal waste streams, industrial waste, and even mining waste. Furthermore, regulatory restrictions, environmental obligations, solid waste expenses, and water supply ...


    By Avista Technologies

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • Zero Discharge Plants

    When the client desires to comply with certain company policies or local regulations requiring him to avoid any final discharge, a series of treatments need to be considered in order to recycle the water and dispose of the residual matter. First of all, Panta Rei provides a proper biological treatment in order to carry out the degradation and reduction of the main pollutants such as BOD, COD and ...


    By Panta Rei Srl

  • Case study – oil removal prior to water discharge

    Customer: Distributor of industrial gases located in Louisiana, USA.   The Problem: Oil and grease from pumps, truck loading stations, and other sites flow through a 2’x 2’ below ground settling basin.  Oil and grease discharging to the local wastewater treatment plant.  Water discharge limits had oil concentration ...


    By SkimTech Inc.

  • Confined plasma gliding arc discharges

    A confined plasma gliding arc is produced in a reactor with two-electrodes contained within a very narrow channel and water spray injected into the discharge. The evolution of pH and conductivity and the formation of hydrogen peroxide in pure water with different carrier gases and the decolourisation and mineralisation of an organic dye were compared with results for a non-confined ...


    By Inderscience Publishers

  • Online discharge measurement with OTT SLD

    Background For the economic management of the waterways between Elbe and Oder it is essential to know the discharge of these rivers at defined locks. The authority for water and navigation (WSA) in Lauenburg operates hydrological stations for the measurement of water level and discharge to effectively regulate the water flow at the locks in Plau and Malliß ...

  • Situation analysis of China’s wastewater discharge

    Great progress has been made in reducing China’s water pollution after decades of efforts. From the perspective of wastewater discharge, the situation of wastewater discharge since 1985 is analysed in this study, with importance attached to industrial wastewater, including wastewater from township enterprises, and to municipal domestic wastewater. In general, the total wastewater discharge in ...


    By Inderscience Publishers

  • Case study - Discharge measurement at the river

    Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual measurements. Therefore it was decided to modernize the station completely and to install a stationary discharge measuring system. The ...

  • Cruise ship discharge assessment report

    Cruise ships operate in every ocean worldwide, often in pristine coastal waters and sensitive marine ecosystems. Cruise ship operators provide amenities to their passengers that are similar to those of luxury resort hotels, including pools, hair salons, restaurants, and dry cleaners. As a result, cruise ships have the potential to generate wastes similar in volume and character to those generated ...

  • A zero discharge installation for Mondi Packaging

    Answering the request of Mondi Savoie  (La Rochette), ECA (Environnement et Chimie Appliquée), worked-out a technico - economical survey on the several treatments, recycling and/or valorisation solutions for its flexo printing and starch glue effluents. After this study, ECA defined and realized a zero discharge installation treating the water fluids. Mondi Savoie, one of the French factories of ...


  • Corrugated Printing Facility Zero Discharge

    This company imports corrugated board and prints the labels using a flexographic machine. The facility had a wastewater treatment system using the traditional liquid chemistry of aluminum chloride, caustic for pH adjustment, and an anionic flocculant. The effluent was often out of compliance due copper from the color pigments in the inks. The system required continual adjustment of the 3 ...


    By Integrated Engineers Inc.

  • Case study - Ocean effluent discharge

    British Columbia’s fly-in recreational fishing lodge industry was threatened by federal regulators to be closed or fined up to $200,000 unless the sewage wastewater was treated. NOMADIC kept them open and operating. Three types of fly-in recreational fishing lodges are located on the west coast of British Columbia operate 6 – 8 weeks per year, employ approximately 500 persons for the ...


    By Nomadic Systems

  • An integrated approach to the optimisation of water usage and discharge in pulp and paper plants

    This paper is aimed at developing a systematic methodology for the cost-effective reduction of water usage and discharge in pulp and paper plants. As the industry moves towards increased system closure, the build-up of Non-Process Elements (NPEs) leads to serious consequences on the process equipment. In response, this paper achieves the following: a mathematical model to track water and primary ...


    By Inderscience Publishers

  • VSEP helps meet discharge guidelines, recycles water and improves mine economics

    Since their development as lab filters in the early 1960s, polymeric membranes have grown in the number of uses at exponential rates. Membrane architecture and process design itself has undergone significant advancement. A unique membrane filtration system, known as V✧SEP (Vibratory Shear Enhanced Process), was developed by New Logic of Emeryville California. The technology employs ...


    By New Logic Research, Inc.

  • Turbidity Measurements in Drinking Water, Effluent Discharges and Coagulant Controlling

    This month at Partech Water Instruments we’re talking about our turbidity sensors—fantastic to use as an environmental indicator. So how can they be used? We’re here to tell you about turbidity sensors being utilised for drinking water, effluent discharges and coagulant controlling. Turbidity Sensors and Drinking Water Turbidity sensors ...


    By Partech (Electronics) Ltd.

  • The Ganges water-sharing treaty: risk analysis of the negotiated discharge

    Bangladesh and India have resolved the Ganges water-sharing problem by signing a thirty-year treaty in December 1996. Both countries share the dry season (January-May) discharge of the Ganges River at Farakka, West Bengal, India. The sharing season is divided into fifteen 10-day cycles. The treaty is based on the discharge of the Ganges at Farakka over the period 1949-1988, taking the average ...


    By Inderscience Publishers

  • Fibra™ lets Tarmac reuse water & meet EA discharge requirements

    Innovative Features Following a period of continuous growth, full-scale FibraTM filters have been installed at two Tarmac pre-cast concrete sites for removal of contaminants from wastewater. The solution has proven particularly effective at other similar sites and other comparable industrial applications. These industries have traditionally discharged the wastewater to sewer because it has ...


    By Clarity Authoring

  • Potential health implications of water resources depletion and sewage discharges in the Republic of Macedonia

    Potential health implications of deficient sanitation infrastructure and reduced surface water flows due to climate change are examined in the case study of the Republic of Macedonia. Changes in surface water flows and wastewater discharges over the period 1955–2013 were analyzed to assess potential future surface water contamination trends. Simple model predictions indicated a decline in ...


    By IWA Publishing

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