waste engineering Articles

  • Gavin Russell, Sales Engineer at TOMRA Sorting Recycling, is sharing key considerations on managing MRF upgrades

    Gavin Russell, Sales Engineer at TOMRA Sorting Recycling, analyses the rising volume of MRF upgrades, considers the rationale driving such decisions, and shares some ideas on how to manage a successful upgrade. Material quality issues Whilst material quality is a primary factor in any evaluation of an MRF’s performance, this can be influenced by a range of ...


    By TOMRA Sorting (TITECH)

  • How to make top-down and bottom-up sustainability converge

    Fits and starts are all too common in the sustainability world. One year you have budget for initiatives; the next you don’t. Management hails cost savings on individual projects, but they miss the big picture and fail to link progress across departmental boundaries. Bottom-up progress and top-down directives pass each other like proverbial ships in the night. But it doesn’t have to ...


    By CH2M Hill Companies, Ltd.

  • Top 5 incineration myth busters

    There are a lot of myths and misconceptions out there when it comes to incinerators and with many people feeling uncertain of what they actually need when in a position to purchase a incinerator, it is sometimes difficult to tell fact from fiction.  Every day we have multiple phone calls from existing and potential customers asking the same ...

  • Case study - Monitoring the oxygen content in bio-methane-to-grid supply

    Since 1984, Orbital has provided advanced technology solutions for the natural gas industry. Orbital’s customers, including the National Grid and the UK's gas distribution networks, rely on its crucial engineering support and specialised knowledge. Its value-added services and innovative products reduce the time it takes to identify, design and begin cost-effective delivery of new ...


    By Systech Instruments Ltd

  • Treatment and Disposal of Air Pollution Control Residue

    What is APCr? Thermal waste management using Energy Recovery Facilities (ERFs) is now a well-managed and mature technology that is subject to environmental monitoring by a range of competent international bodies. These ERFs have been established as a means of diverting waste away from landfill disposal and for valorising the material and energy content of the waste. Counter to historic ...

  • How to achieve triple bottom line sustainability benefits on airport runway projects

    CH2M delivers best-in-class sustainable approaches for airport clients worldwide by constantly seeking opportunities to apply sustainable development and design concepts. From planning through plowing, CH2M is leading the development of the most sustainable runway projects in the U.S. Through our life-cycle approach, airport clients have experienced significant benefits such as ...


    By CH2M Hill Companies, Ltd.

  • Does your facility need Zero Liquid Discharge Technology?

    If your industrial facility discharges its waste into deep wells, streams, sewers to publicly owned treatment works (POTWs), and/or other waterways, it is likely there are some types of regulations on discharging the waste. With an increasing push toward environmental protection, many industrial facilities and effluent regulators are strengthening strategies to reduce industrial process waste. ...


    By SAMCO Technologies, Inc.

  • New ways for Metal Recycling

    REWAVE XRF 3-way-sorting in innovative  “Free-Fall”-design Recycling of metal and aluminium knows no limits because it can be remelted as scrap indefinitely. Metals, however have to be separated from non-metallic impurities, and different metals have to be sorted in pure fractions to be used as secondary raw materials substituting primary resources. Especially when it ...

  • 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 ...

  • 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

  • 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 ...

  • 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

  • Book Review: Assessment of the Performance of Engineered Waste Containment Barriers by National Research Council of the National Academies

    Assessment of the Performance of Engineered Waste Containment Barriers, by National Research Council of the National Academies. Towcester, UK, National Academic Press, 2008. ISBN: 978-0-309-10809-6 Keywords: book ...


    By Inderscience Publishers

  • Special purpose mapping for waste disposal sites: Report of IAEG Commission 1: Engineering Geological Maps

    This report results from work that was first proposed to a meeting of the International Association of Engineering Geology (IAEG), Commission No.1 held in Bratislava (Slovakia) in 1992. Following the publication of the Commissions report on Engineering Geological Maps (Engineering geological maps (1976) and reports on the description and classification of rock and soil and on recommended symbols ...


    By Springer

  • Maximising biogas in anaerobic digestion by using engine waste heat for thermal hydrolysis pre-treatment of sludge

    EXECUTIVE SUMMARY Dublin's Ringsend WWTP was designed to serve a population of approximately 1.2 million pe with a sludge production of 37,000 dry tonnes per year after upgrading to full secondary treatment. Several technical solutions were put forward as part of a Design, Build, Finance and Operate (DBFO) competition, with the chosen solution being a proposal by Black and Veatch for a ...


    By Cambi AS

  • 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

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