Energy Recovery Articles

  • Fluidized Bed Biosolids Disposal Gasification Case Study

    Summary: In 2007, the Sanford, Florida, Utility Department sought to identify an onsite biosolids management and disposal system that could be integrated within their South Sanford Water Treatment Facility. The intended biogasification system would be a cost effective long–term solution, that is regulatory compliant and environmentally ...


    By Aries Clean Energy LLC

  • Energy Recovery Turbine at Beaver Park Dam - Case Study

    The Beaver Park Dam has head varying from 55-80’ and 5 CFS flow. Site operators wanted to capture this power for use in heating and controlling the site. Rickly provided a Turgo Turbine for energy recovery from the dam outlet. The turbine used a butterfly valve to throttle the turbine based on flow and isolation butterfly valves to shut down nozzles incrementally. ...


    By Rickly Hydro

  • Energy costs: Will they keep on going up?

    Have business energy prices peaked, or will the market rise further? Inprova Energy Director Magnus Walker discusses the the current volatile state of the wholesale energy market and what businesses can do to combat sharply rising energy costs.  It seems like every day the cost of energy is going up. Electricity, gas, oil; it's just one-way ...


    By Inprova Energy

  • Energy Recovery System - Case Study

    Addfield collaborated with an energy recovery company and one of the UK’s largest landscaping and recycling companies to produce the innovative idea of creating energy from waste. ...

  • Biomass and Integration in Future Energy Systems and the Bioeconomy

    Biomass was the primary source of materials and energy until the industrial revolution set off a series of major changes around two hundred years ago. In the industrialized world fossil fuels became the primary source for energy in the forms of electricity and heat and provided almost all fuels for transport. However, biomass continued to maintain an important role in the economies in both ...

  • Dunbar East Lothian, Scotland - Energy Recovery Facility, 320,000 Tonnes Per Annum - Case study

    The new energy recovery facility, developed by Viridor, will be located at the rail-linked waste treatment hub in Dunbar, East Lothain. Based on a detailed, competitive tender, B&W Vølund and Interserve won the EPC/turnkey contract for the facility. The plant ...


    By Dürr MEGTEC, LLC

  • Case study - Georgia Gulf Chemical & Vinyl, LLC, Aberdeen, MS

    Our company purchased a Sidel SRU 400-80 condensing economizer from Marspec in 2010. Today it operates on an 80,000 pound/hr boiler, but was sized to also handle the exhaust flow of a second boiler of 40,000 lb/hr in the future. The economizer has run without requiring any maintenance, and has worked effectively in the time since it was installed. I was really surprised when I saw how much ...


    By Sidel Systems USA Inc.

  • Green Light for Recycling – Biogas has an exciting future - Case Study

    The tipping lorry of the container vehicle moves up. In minutes, its load of food residue is emptied and starts its course to energy recovery. "Energy for tomorrow" is the slogan of the Danpower Group for a reason. Danpower sees the biogas sector as a key growth factor for the future. Twenty five biogas plants are currently in operation, one of which is in Bad Köstritz/Thüringen. ...


    By HSM GmbH + Co. KG

  • Case study - Air-to-air heat exchanger provides plant heat and big savings

    OVERVIEW A food processing facility installed a new Regenerative Thermal Oxidizer (RTO) for odor control from its roasting operation.  The oxidizer was designed for 95% thermal rate of efficiency and included supplemental fuel injection (SFI) which is used during low VOC loading conditions, to help save fuel cost.  The customer was looking at additional ways  to further ...

  • Case study - Increasing primary heat recovery

    OVERVIEW Tekra Corporation is a custom coater of plastic films in Wisconsin, where state regulations require over 98% of the Volatile Organic Compounds (VOCs) emitted from their process be destroyed in an oxidizer system. While considering their first oxidizer system, Tekra's Engineers did their homework and invested in an early model Regenerative Thermal Oxidizer (RTO). While at the ...

  • Case study - Waste heat generates steam and savings

    OVERVIEW A coil coating facility purchased a new a 15,000 SCFM Regenerative Thermal Oxidizer (RTO) which had a nominal heat transfer efficiency rate of 90% thermal energy recovery. It was designed with supplemental fuel injection (SFI) which is used during low VOC loading conditions, to help save fuel cost.  The facility was looking for additional ways to decrease their exhaust ...

  • Case study - Air-to-water heat exchanger reduces operating costs by $120,000 per year

    OVERVIEW This pharmaceutical company had a 5,000 SCFM oxidizer that they were looking to relocate to another facility across the United States.  The destruction rate efficiency and heat recovery expectation at the new location differed from the original design conditions at the current facility. ACTION An Anguil field service engineer went to ...

  • Analysis of energy efficiency and energy consumption costs: a case study for regional wastewater treatment plant in Malaysia

    The objective of this study is to analyze the possibilities of increasing energy efficiency in the central region wastewater treatment plant by focusing on two aspects: biogas production and prediction of energy production. The analysis is based on one of the biggest central region wastewater treatment plants in Malaysia. After studying the energy efficiency, which consists of optimization of ...


    By IWA Publishing

  • Case study - Gusto Homes

    immerSUN helps development cut energy costs The Edge, a sustainable housing development next to Lincoln’s show ground, boasts a daily household energy bill of less than £1 including heating, space heating and lighting, at today’s energy prices thanks to immerSUN. Constructed by Gusto Homes, The Edge initially consists of 18 three and four bed ‘solar ...


    By SISEM Limited

  • Biogas upgrading: Membrane separation takes over

    Abstract Due to governmental incentives and growing environmental awareness, it becomes increasingly attractive to upgrade biogas to natural gas quality and inject it into the natural gas grid or to use it as transport fuel. In this way, the biomethane can be utilized with the highest energy efficiency. Progressively, effort is being put into the utilization of organic waste streams in ...

  • Case study - Grand Junction sets the pace with Colorado’s first biogas-to-vehicle fuel project at the Persigo wastewater plant

    In Georgia, renewable compressed natural gas (R-CNG) fuels sanitation vehicles and generates income for DeKalb County. Summary: Designed, built, and operated by the Energy Systems Group, the DeKalb County Renewable Fuels Facility became operational in Apiil 2012. It is die first facility in the US to have a fueling station on-site and generate electricity, renewable natural ...


    By Energy Vision

  • Anaerobic digestion of post-hydrothermal liquefaction wastewater for improved energy efficiency of hydrothermal bioenergy processes

    Hydrothermal liquefaction (HTL) is a promising process for converting wet biomass and organic wastes into bio-crude oil. It also produces an aqueous product referred to as post-hydrothermal liquefaction wastewater (PHWW) containing up to 40% of the original feedstock carbon, which reduces the overall energy efficiency of the HTL process. This study investigated the feasibility of using ...


    By IWA Publishing

  • Les Chênes Verts, Eiffage, greenhouse cogeneration plant - Case Study

    Chênes Verts Energie has awarded Eiffage Energie as the main contractor of the renovation of an older generation greenhouse cogenerationplant in Chenes Verts’s  ...


    By Clarke Energy

  • Hexavalent chromium reduction and energy recovery by using dual-chambered microbial fuel cell

    Microbial fuel cell (MFC) technology is utilized to treat hexavalent chromium (Cr(VI)) from wastewater and to generate electricity simultaneously. The Cr(VI) is bioelectrochemically reduced to non-toxic Cr(III) form in the presence of an organic electron donor in a dual-chambered MFC. The Cr(VI) as catholyte and artificial wastewater inoculated with anaerobic sludge as anolyte, Cr(VI) at 100 ...


    By IWA Publishing

  • Review of coal as a promising source of lithium

    Coals are a major source of pollution in certain parts of the world due to mining, coal combustion, and disposal of fly ash. The recovery of valuable rare metals from coals or coal–processing byproducts is a promising way to utilise these traditional resources economically, efficiently and in an environmentally friendly way. Lithium, a highly interesting metal, has been found dispersed and even ...


    By Inderscience Publishers

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