Energy Recovery Articles

  • Does Your Facility Need a Reverse Osmosis or Nanofiltration System?

    Reverse osmosis (RO) and Nanofiltration (NF) are used across a wide variety of industrial applications for removal of dissolved materials from liquid streams. Implemented judiciously, RO and NF are effective strategies for recycling process liquids, reducing waste water, recovering and concentrating dissolved materials, and generating potable water. If your industrial facility requires removal of ...


    By SAMCO Technologies, Inc.

  • Comparative evaluation of conventional and microwave hydrothermal carbonization of human biowaste for value recovery

    This paper compares conventional and microwave hydrothermal carbonization (HTC) of human biowaste (HBW) at 160 °C, 180 °C and 200 °C as a potential technology to recover valuable carbonaceous solid fuel char and organic-rich liquor. Also discussed are the influence of HTC heating methods and temperature on HBW processing conversion into solid fuel char, i.e. yield and post-HTC management, ...


    By IWA Publishing

  • Turning waste into wattage

    How we are helping to meet the growing demand for waste energy recovery It’s a sign of the times that more and more companies and organisations are now looking at ways to capitalise on the waste material their production process produces rather than having to pay a third part to take it away for them.  One reason of course is the high cost of scrappage.  Another is the ...


    By Todaysure Matthews

  • Integrating Reverse-Electrodialysis Stacks with flow batteries for improved energy recovery from salinity gradients and energy storage

    Abstract Salinity gradient energy can be directly converted into electrical power by using reverse electrodialysis (RED) and other technologies, but reported power densities have been too low for practical applications. Herein, the RED stack performance was improved by using 2,6-dihydroxyanthraquinone and ferrocyanide as redox couples. These electrolytes were then used in a flow battery to ...


    By SusChem

  • 25 Years of Success – Outokumpu Stainless DC Plasma Smelting Facility

    Design is not just what is looks and feels like. Design is how it works. Between 1982 and 1987, British Steel (Outokumpu today) made extensive investigations into the treatment of steel dust. Their research was far and wide and covered off many various methods of recycling, including alternative to plasma technologies. But, in 1985, they engaged Tetronics International to carry out a ...

  • Case study - Mission Linen Supply, Santa Barbara, California, USA

    “A number of years ago Sid Abma of Sidel Systems USA Inc. approached us with his Sidel SRU flue gas heat recovery unit. I think that we, like most companies, considered it; but we took no action for some time. Finally a situation developed that made it beneficial for us to try this unit. We purchased a unit and had it installed in July of 2006. A second unit is in the process of being ...


    By Sidel Systems USA Inc.

  • Case study - Smith Gardens, Inc., Bellingham, Washington, USA

    “In 1993, Sid Abma installed a new 350 HP boiler along with his SRU stack recovery condenser, to heat a section of our greenhouses in Bellingham, Washington. While the boiler requires yearly service and maintenance, the condenser requires no maintenance. It just sits on the floor next to the boiler and gives us free heat. Sid was able to pipe the condenser in a way that takes maximum ...


    By Sidel Systems USA Inc.

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • Energy Neutral” Is More Than Just a Buzzword for WWTPs

    Could all wastewater treatment plants someday become energy neutral? The goal may sound unobtainable, but with the right technology, investments, and innovation it may not be. According to the American Biogas Council, the wastewater sector consumes 22 terawatt hours of electrical energy each year, but has the potential to generate 851 trillion BTU of ...


    By KLa Systems, Inc.

  • What factors are influencing waste to energy capacity requirements in the UK and Europe?

    What factors are influencing waste to energy capacity requirements in the UK and Europe? How can the EU balance its EFW capacity going forward? As growth in municipal recycling has slowed to a crawl over the last five years, after racing from 11.2% in 2000/01 to 41.5% in 2010/11, the European target of 50% recycling by 2020 is beginning to look increasingly challenging. Let alone the 65% ...


    By Rethink Events Ltd.

  • Application of forward osmosis membrane technology for oil sands process-affected water desalination

    The extraction process used to obtain bitumen from the oil sands produces large volumes of oil sands process-affected water (OSPW). As a newly emerging desalination technology, forward osmosis (FO) has shown great promise in saving electrical power requirements, increasing water recovery, and minimizing brine discharge. With the support of this funding, a FO system was constructed using a ...


    By IWA Publishing

  • Whitepaper - Wastewater treatment in the dairy processing recovering energy using anaerobic technology industry

    Introduction The composition of wastewater from dairy processing plants makes it highly suitable for biological wastewater treatment processing. As well anaerobic biological treatment of the wastewater there is also the option of applying anaerobic biological processes. By applying anaerobic technology a large part of the organic load in the wastewater can be removed and ...


    By EnviroChemie GmbH

  • First implementation of a SEMIZENTRAL resource recovery center

    The SEMIZENTRAL approach has been developed for fast growing cities, to meet their challenges regarding the supply of water and the treatment of biowaste and wastewater. Key elements of the SEMIZENTRAL integrated infrastructure approach are high resource efficiency due to urban water reuse and the usage of the energy potential of wastewater/sludge and waste, as well as its system size between ...


    By IWA Publishing

  • Case study - Carbon fibre: furnace & oven emission control

    Overview A carbon fiber company in China was faced with the challenge of selecting an emission control system for a new pilot line at their specialty fiber products facility. The line would include furnaces and three ovens, both of which would emit Carbon Monoxide (CO), Ammonia (NH3) and lethal amounts of Hydrogen Cyanide (HCN).   Action ...

  • Reducing operational costs in high silica, 18,000m3/day BWRO in Arica, Chile

    Abstract The desalination industry has significantly evolved in the last decade with 33million m3/day of additional desalination capacity now operating. One third is using membrane technology with 6,458 Reverse osmosis plants coming on-line. More than twice as many brackish water RO plants than sea water plants have been built since the first plants were commissioned in the late ...

  • Laboratory-scale membrane up-concentration and co-anaerobic digestion for energy recovery from sewage and kitchen waste

    This study assessed an alternative concept for co-treatment of sewage and organic kitchen waste in Vietnam. The goal was to apply direct membrane filtration for sewage treatment to generate a permeate that is suitable for discharge. The obtained chemical oxygen demand (COD) concentrations in the permeate of ultrafiltration tests were indeed under the limit value (50 mg/L) of the local ...


    By IWA Publishing

  • Great advances in resource efficiency - recycling nonwoven process waste

    In the past, there has been no simple technical solution for recycling nonwoven process waste, which consists of side trim and reject rolls. They have been sent to landfill or in the best case incinerated for energy recovery. In October 2011, a pair of recycling extruders was installed on the Windsor Locks, CT, USA, spunbond machine producing nonwovens for medical fabrics. The purpose of the ...


    By Ahlstrom-Munksjö

  • Can towns near Japan`s Fukushima nuclear plant recover?

    A few signs of life are returning to this rural town made desolate by the Fukushima nuclear disaster four-and-a-half years ago: Carpenters bang on houses, an occasional delivery truck drives by and a noodle shop has opened to serve employees who have returned to Naraha's small town hall. But weeds cover the now rusty train tracks, there are no sounds of children and wild boars still roam around ...


    By Associated Press

  • Nottingham - Condensing Combi-Boiler case study

    Customer: Mr Tony Goodyear, Heating Engineer Location: Nottingham Heating System: Gas Condensing Combi Boiler installed: 08/07 Problems: New condensing boiler fitted within the past 12 months had failed to rectify noise from pump and problems with air present in ...


    By Vortex Energy Saver

  • Energy Recovery Solution from the Wasted Grey Water - Case Study

    Energy Recovery Solution from GREY Wasted Water in Large Condos or Hotels, or in WTP or from City Sewage pipes flowing under the street. The Energy Recover Solutions are Patented Technology with Major Benefits in different markets A practical solution to save ...


    By DDI Heat Exchangers Inc.

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