electro-dewatering Articles

  • Regrowth of bacterial pathogen indicators after advanced electro-osmotic dewatering of biosolids

    Applying an electrical field for 10 min to mechanically dewatered biosolids increased dryness to 35 to 45% and reduced Escherichia coli levels to/close to detection limits. Possible reasons for the regrowth of bacterial pathogens impacted by electro-osmotic dewatering are biosolids dryness, low pH and the generation of bacterial oxidants on the anode due to high temperatures. Testing for this ...


    By Inderscience Publishers

  • UNTHA waste shredder for one of most state-of-the-art MPS systems in Europe

    MPS Betriebsführungs GmbH, based in Berlin, has been using a UNTHA XR3000R waste shredder since early October. The waste treatment plant, which is jointly operated by the ALBA Group and Berliner Stadtreinigung (Berlin’s municipal waste management company), specialises in the production of alternative fuels, and forms part of one of the most modern plants for mechanical-physical ...


    By UNTHA Shredding Technology

  • The Electro-magnetic forces

    In this research we will introduce the new technique Electro– magnetic forces to filtrate the lubricant oil from the dust of the natural or artificial solid metals. DC type voltage within the range of 0–30 Volts were used on a steel meshes (Porosity=0.83) and for the steel discs (P=0.0885), while the range of 0–200 Volts were applied for the steel meshes (P=0.787) .The preliminary investigations ...


  • Bespoke Dewatering

    Q: What sets Tidy Planet apart from “the rest” ? A: We don’t try and make a square peg fit a round hole That’s one of the things we’ve learnt long ago, along with that there’s no one clear solution, there’s not one type of food waste, there’s not one type of customer, never presume anything and listen to what’s being said. One of our ...


    By Tidy Planet Limited

  • Dewatering bin carryover study

    Bottom ash dewatering bins (hydro-bins) at coal fuel utility plants allow ash material to carry over to ash settling ponds, or in the case of closed loop systems, re-circulate suspended ash solids, resulting in the following problems: Frequent and expensive dredging of settling ponds Excessive wear on system components caused by re-circulating suspendedsolids Labor intensive manual ...


    By Entech Design, Inc.

  • Temporary Construction Dewatering Solutions

    Mention “dewatering” to anyone outside of the underground construction trade, and typically, with a blank stare, they’ll ask what is D-watering? Mention dewatering to anyone in the underground construction trade, and they’ll likely state that it is one of the most important phases in the project, as a well designed and installed dewatering system will allow them to ...


    By Griffin Dewatering

  • Evaluation of DEWATS in Java, Indonesia

    Under the Indonesian PPSP (Accelerated Sanitation Development for Human Settlements Program) thousands of new DEWATS (Decentralized Wastewater Treatment Systems) may be realized in the coming five years. Taking the massive scale of planned implementation into consideration an evaluation of the technical and financial-economic aspects and users' involvement for three different types of ...


    By IWA Publishing

  • Geotextiles in Construction Dewatering

    Woven geotextiles work wonders in dewatering applications as wraps around well screens and sump pit screens. The textile can be sewn into sleeves or tubes to be slid over the well screen or sump pit framework. This technique allows the user to compensate for well screens with slots that are too large or for sump pit piping with large perforations. By adding the geotextile sleeves the user ...


    By Griffin Dewatering

  • Oil Field Sludge Dewatering

    An oil field contract dewatering company was unable to dewater the oily/water/solids from several oil field storage tanks using conventional coagulants/flocculants. The swings in solids loading and oil content made it very difficult to control the correct dosage rate as conventional chemistry has a very tight tolerance to maintain a dewaterable floc. The result was an ongoing blinding problem for ...


    By Integrated Engineers Inc.

  • Quarry Dewatering Compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering ...


    By Greyline Instruments Inc.

  • A review on sludge dewatering indices

    Dewatering of sludge from sewage treatment plants is proving to be a significant challenge due to the large amounts of residual sludges generated annually. In recent years, research and development have focused on improving the dewatering process in order to reduce subsequent costs of sludge management and transport. To achieve this goal, it is necessary to establish reliable indices that ...


    By IWA Publishing

  • Quarry dewatering compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...


    By Greyline Instruments Inc.

  • Degradation of azo dyes in water by Electro-Fenton process

    Abstract The degradation of the azo dyes azobenzene, p-methyl red and methyl orange in aqueous solution at room temperature has been studied by an advanced electrochemical oxidation process (AEOPs) under potential-controlled electrolysis conditions, using a Pt anode and a carbon felt cathode. The electrochemical production of Fenton's reagent (H 2O 2, Fe 2+) allows a controlled in situ generation ...


    By Springer

  • How to Select a Dewatering Pump Supplier

    Dewatering is a requirement of many mining/quarrying or construction projects. Simply put, it is the job of eliminating or controlling the effects of water on the job site. This can mean pumping out standing water or bypassing a river, but it usually means controlling the water contained in nearby soil. Any project that requires digging into the earth (to lay foundations or sink a mine shaft) ...


  • A New, Real Technology for Solids Dewatering

    Over the past decade, there have been few significant improvements to the performance in sludge dewatering technologies. Most improvements, other than process optimizations from the polymer industry, have been minor adaptations to the various dewatering technologies such as adding additional pressure rollers or modifying the diameters of pressure rollers on a belt filter press. The adoption of ...

  • Dewatering of Industrial Sludge - Case Study

    At Ten Cate Protect, town of Nijverdal, The Netherlands, 2006 During the wastewater treatment process at Ten Cate Protect large quantities of sewage sludge are liberated. A couple of days per week this sludge is transported in tanker trucks to a waste disposal plant. On June 14th 2005 a Geotube MDS unit was put in operation at Ten Cate Protect to separate and condense the sludge of the aerobic ...

  • INNOVATIVE NEED-BASED DEWATERING SOLUTIONS

    One of the keys to Griffin Dewatering’s long-term success is the high level of team work between Griffin Dewatering’s engineers and its field personnel. Griffin Dewatering is, and has always been, very strongly fieldoriented and sensitive to the special needs of general contractors. This includes the need for timely response to bid schedules and subsequent performance of the work. ...


    By Griffin Dewatering

  • Gas Station Site Dewatering Treatment

    Gas Station Site Dewatering Treatment Florida Carbonair provided a turn-key temporary water treatment system for this project.  A Carbonair field crew mobilized, set up, and trained the clients operators of the system to operate the system. At the conclusion of the project Carbonair provided demobilization services including the extraction and disposal of ...

  • Dewatered waste is disposed at lower cost

    By compacting and dewatering  reject, a paper recycling company avoid having to transport water for no useful purpose. SKJERN PAPIR A/S in Denmark produces 54,000 tons of liner and cardboard from recycled paper annually. In the initial sorting, the paper material is separated out from large, insoluble materials such as plastic, staples and other unwanted elements using a pulper. The ...


    By RUNI A/S

  • Dewatering of Boiler Ash - Case Study

    Ten Gate develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE PROJECT The Wheelabrator Technology Group provides design/build and operation of trash-to-energy facilities. The Wheelabrator facility located in Lisbon, CT utilizes a storage tank for ...

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