waste engineering Articles

  • 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

  • Oil Recycling - Case Study

    The problem: Waste oil recycling contributes very much to climate protection through (CO2) energy saving. Compared to the production of base oil the re-refining of waste oil uses 34 % less resources. In the sixties the German government was subsidising the re-refining of waste oil. Because of that the use of waste oil as a fuel was neglected. The used oil re-refining is the ...


    By Dirk European Holdings LTD

  • Aluminum recycling at Centro Rottami, Italy - Case Study

    Aluminum recycling is particularly important for the Italian economy, which has historically been lacking in raw materials – The showcase of Centro Rottami. Aluminum recycling is particularly important for the Italian economy, which has historically been lacking in raw materials. In fact, as much as 90% of the aluminum produced in the country comes from recycling, and is identical to ...


    By TOMRA Sorting GmbH.

  • Reverse Osmosis and Nanofiltration Membrane Filtration Systems: Common Problems and How to Fix Them

    Reverse osmosis (RO) and nanofiltration (NF) are membrane filtration technologies that are designed to remove solute ions and molecules from a pretreated liquid stream. Well-designed RO/NF units are compact and demand relatively little maintenance, making them an attractive alternative to conventional treatment trains. Even despite the merits of today’s efficient RO/NF technologies, it pays ...


    By SAMCO Technologies, Inc.

  • Engineers without borders: sustainable engineering for developing communities

    Through integrated design strategies and a longstanding commitment to communities, students from Johns Hopkins and University of Maryland chapters of Engineers Without Borders and professionals from the Chesapeake EWB section collaborated on potable water, sanitation, and irrigation projects in developing communities worldwide. In Baan Bo Mai, Thailand, a pipeline was installed to provide the ...

  • The Chemical Engineer - The Forgotten Earth

    Demand for minerals is on the rise, as is their price. No wonder then that industry is looking to extract minerals from what once would have considered waste. In this article, Dr Tim Johnson of Tetronics explains how plasma technology plays its ...

  • Engine manufacturer saves $45,000

    The Problem: An engine manufacturer was faced with costly lost production in their 10,000gallon central honing oil system. The central system had been contaminated with 1500 gallons of water. The oil supplier’s lead-time for replacing the oil was just over 72 hours, and draining, cleaning, and drying the system would add to the downtime. SRS had already been conducting a successful coolant ...

  • Engineering Innovation into Driveline Design

    Introduction: thinking differently What is innovation? How can you harness innovation in practical ways to support your business goals? In the driveline industry and for engineering in general, “innovation” is often synonymous with the use of new or novel technologies/methods to achieve design and development goals - and ultimately deliver a higher quality product - in faster, ...


    By Romax Technology Limited

  • Waste Disposal

    Introduction The final step in the waste management process is waste disposal, the permanent isolation of waste. Some wastes can be managed and disposed safely with existing facilities and proven methods. Other Department of Energy (DOE) wastes require more complex disposal facilities. DOE has conducted extensive research into alternative waste disposal methods and has concluded that deep ...

  • Waste not, want not

    Consultant Andy Ive considers solutions which not only comply but also enhance the environmental profile of today’s industrial companies. Until recently the prevailing perception in many industries, particularly those operating in emerging market areas has been that waste is an unwelcome inconvenience. The primary infrastructure of most companies was fundamentally not designed to deal with waste ...


    By Ive Design

  • GE Aircraft Engines - Case Study

    Mech-Chem engineered, designed, and constructed two Air Emission Control Systems for the plant's Meltout Operations. The systems are non-aqueous processes which were designed to contain and remove metallic contaminants with a particle size of 0.3 microns or larger. Air Emission Control System Mech-Chem provided GE Aircraft Engines with the design, engineering, construction, installation, and ...


    By Mech-Chem Associates, Inc.

  • Application of coupled thermostatted columns in civil engineering and for leaching heavy metals of wastes from foundry sands and mining industry

    For many years, the mining industry at Pachuca Hidalgo, Mexico, has produced silver and gold through a cyanide process. Solid wastes (tailings) of this process have been deposited close to centres of population. Many of the metals in these wastes are dispersed via wind and rain, and can be toxic to flora and fauna. Foundry sands are wastes, produced by the automotive industry, the metallurgy ...


    By Inderscience Publishers

  • Turning Contaminated Waste into Clean Renewable Energy and pas 110 compost – an overview of the inter Engineering Biowaste Process

    The Inter Engineering Biowaste process has been specifically developed to allow contaminated CAT3 organic wastes to be pre-conditioned and anaerobicly digested to produce high yields of renewable biogas and good quality compost suitable for compliance with the proposed PAS110 standard.   The paper outlines the process and discusses many of the specific adaptations the process has made to ...


  • Power generation at a stationary engine application

    South Texas, USA Max Gross Power Output: 28kWe Thermal Heat Input: 235 - 450kWt Hot Water Input Range: 180 - 190°F Hot Water Flow: 200 GPM Direct Condenser: Ambient air temperature ranges from 30-100°F avg is 70°F ElectraTherm’s Gulf Coast distributor, Gulf Coast Green Energy (GCGE), is generating fuel-free, emission free power using the ElectraTherm ...


    By ElectraTherm

  • Drivers of solid waste minimisation in Finnish metal engineering SMEs: the role of Environmental Management Systems

    The paper reports on a survey in Finnish small- and medium-sized metal engineering enterprises (SMEs) with certified Environmental Management System (EMS). Waste awareness has increased after certifying EMS and the treatment of solid waste has improved; source separation of solid waste facilitated the recovery of recyclables and their diversion from landfill. EMS has raised knowledge levels, in ...


    By Inderscience Publishers

  • Car Engines Air Filters. A Useful Ambient Air Sampler and/or a Possible Hazardous Waste?

    Car-engine air filters (CAFs) have been recently used as inexpensive alternative air sampling media for hydrophobic organic compounds such as polycyclic aromatic hydrocarbons, polychlorinated dibenzo-p-dioxins and furans and also for heavy metals. This “active-passive” sampling methodology is a promising way for urban air monitoring, being able to offer invaluable advantages. Two ...

  • Effect of fuel additives on performance and exhaust emissions of direct injection diesel engine operating on B20 waste fish oil

    The ever increasing diesel consumption, rapid depletion of fossil fuels and environmental concern has prompted an intensive use of biodiesel produced from various sources. In this study, biodiesel (ethyl ester of fish oil) was prepared from fish oil and different blends of biodiesel–diesel (B20, B40, B60, B80 and B100) were examined in a single cylinder, constant speed, and direct injection ...


    By Inderscience Publishers

  • ACO’s comprehensive product range delivers value-engineered SUDS solution at new waste transfer station

    ACO Water Management's ability to supply products that cover every process required for sustainable drainage - Collect, Clean, Hold, Release - has delivered a comprehensive, value-engineered SUDS solution for J&J Stanley at its new waste transfer station in Newcastle upon Tyne. By working with a single team on the design of the entire system, the completed scheme - together with each ...


    By ACO Group

  • New engines: Time to clear the air

    In response to new federal emission standards that went into effect Jan. 1, 2010 in the U.S. and Canada, engine manufacturers selected one of two choices to achieve a reduction in emissions of oxides of nitrogen (NOx). They either provide an in-cylinder approach through increased exhaust gas recirculation (EGR) only, or an engine aftertreatment approach using selective catalytic reduction (SCR) ...


    By Waste Advantage Magazine

  • Tetronics: Meet our engineering apprentices

    My time at Tetronics International by Connor Meyrick (Engineering Apprentice, Tetronics International) A great company to work for I have been working at Tetronics as part of my electrical and mechanical engineering apprenticeship for nearly two years. Tetronics really stood out when looking for my apprenticeship as not only is it a company with forward thinking ...

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