recovered energy generation Articles

  • Recovering Wasted Energy: Beneath the city streets

    Sewage heat recovery graphNo one likes to think about it, but city planners and engineers often have no choice but to deal with it, and that’s sewage. Though techniques vary somewhat from place to place and from facility to facility, sewage generally flows down pipes with multiple steps in place designed to remove and treat as many solids as possible, before returning the freshly distilled ...


    By DDI Heat Exchangers Inc.

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

    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 converted into ...


    By EnviroChemie GmbH

  • Recovering oil from grinding sludge - Case Study

    Zahnradfertigung Ott uses RUF briquetting unit A large volume of sludge is produced in the grinding of high-precision gears. In most cases, this grinding sludge is disposed of at high costs. Zahnradfertigung Ott, a specialist manufacturer of gears, found a better solution: since 2005, the company is using a briquetting unit from RUF to recover 500 litres of grinding oil per day from the ...

  • 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

  • Towards a desalination initiative using cogeneration with an advanced reactor type and uranium recovered from Moroccan phosphoric acid production

    Morocco is known to be among the first few countries to produce phosphate and phosphoric acid. Moroccan phosphate contains substantial amounts of uranium. This uranium can be recovered from the phosphate ore as a by-product during the production of phosphoric acid. Uranium extraction processes linked with phosphoric acid fabrication have been used industrially in some countries. This is done ...


    By Inderscience Publishers

  • On site flotation for recovering polluted aquatic systems: is it a feasible solution for a Brazilian urban river?

    Pinheiros River (Brazil) plays a pivotal role in supplying water to Billings Reservoir, which presents multiple uses (human drinking, energy generation, irrigation, navigation, fishing and leisure). An intense monitoring program was performed during the years 2007 and 2008 to find out whether on site flotation is a feasible solution or not for improving the water quality of this urban river, ...


    By IWA Publishing

  • 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 ...

  • Is it better to burn or bury waste for clean electricity generation?

    The use of municipal solid waste (MSW) to generate electricity through landfill-gas-to-energy (LFGTE) and waste-to-energy (WTE)projectsrepresentsroughly14%ofU.S.nonhydrorenewable electricity generation. Although various aspects of LFGTE and WTE have been analyzed in the literature, this paper is the first to present a comprehensive set of life-cycle emission factors per unit of electricity ...


    By Novo Energy, LLC

  • Solar powered solid oxide fuel cell with thermoelectric generator

    Durable, location independent, environmental–friendly sources of energy which allow for modular, few moving parts, low operating noise, high electricity generation efficiency and compact technology are highly desirable. Solid oxide fuel cells (SOFCs) are promising for such energy system development, since they are energy efficient and, if pure hydrogen is used, have virtually no emissions of ...


    By Inderscience Publishers

  • Landfills Expand Energy Output

    HIGH fossil fuel prices and growing concern about global climate change are creating favorable conditions for landfill gas energy (LFGE) projects. Notably, endorsement of LFGE by Federal agencies and many states as a form of “green” power has enabled LFGE developers to earn premiums for electricity marketed through green power programs, and to benefit from expanded federal tax credits for ...


    By BioCycle Magazine

  • Self-sustained vermicomposting plant at municipal solid waste generation point

    The increase in quantum of Municipal Solid Waste (MSW) generation puts additional burden on MSW and energy management. Out of all the wastes, the biodegradable waste is the worst waste regarding heat generation due to anaerobic conditions of the waste. The expenditure on collection, transportation and disposal of MSW are very high and environmentally unhygienic. The waste can be converted into ...


    By Inderscience Publishers

  • Gasification - The Waste-To-Energy Solution

    Introduction Each year, Americans generate about 250 million tons of Municipal Solid Waste, or MSW—about 4.3 pounds per person per day. This includes “trash” such as kitchen waste, electronics, light bulbs, plastics, used tires and old paint, and yard waste. Despite significant increases in recycling and energy recovery, only about one-third of the total MSW is ...

  • Next generation biogas upgrading using highly selective gas separation membranes

    More and more effort is being put into the utilization of organic waste streams in anaerobic digesters, producing useful products such as fertilizers and biogas. DMT has been developing biogas treatment plants for over 25 years, closely following market developments. It is becoming increasingly attractive to upgrade biogas to natural gas quality and inject it into the natural gas grid or use it ...

  • Leveraging Standards in the Energy Resurgence

    An Interview with Fred Walas, P.E., Fuels Technology Manager, Marathon Petroleum Company Marathon Petroleum’s Fred Walas talks about today’s energy developments, sustainability at his company’s refineries and the crucial role of standards in fuel production and quality control. As the energy spectrum shifts in the United States, forms of resource extraction and ...


    By ASTM International

  • EnviroChemie Energy from Wastewater Biomar

    Energy from Wastewater Use of biological wastewater treatment to generate energy, preserve resources and lower operating costs The challenge in terms of sustainability: Reducing energy consumption and optimising operating costs is an important aspect for many companies. Under certain conditions these goals can be combined in an intelligent wastewater ...


    By EnviroChemie GmbH

  • Renewable energy marketplace

    ALLU Group markets two types of equipment for use in biomass energy operations. The ALLU Screener Crusher bucket attaches to a front-end loader. The bucket is designed to aerate, crush, screen and mix at one time. The Screener Crusher has a rigid steel frame, onto which horizontally rotating screening and crushing drums are mounted. All the drums rotate in the same direction. There are several ...


    By BioCycle Magazine

  • Wood briquettes packed full of energy

    Konolt manages its energy output using RUF briquetting machinery Timber processors Konold are improving their energy balance with the help of their RUF briquetting machine. Wood waste is being pressed into briquettes to create a uniform combustible material. The heat they produce is then used for process heating and to heat their premises, with the residual heat being used to generate ...

  • Utilisation of Methane to Generate Electricity: BHP Appin and Tower Collieries

    Background BHP Collieries Division operates five underground coal mines in and around the Illawarra region of NSW. They include the Appin and Tower mines which are situated north-west of Wollongong and some 75 kilometres from Sydney. These two mines produce around 3.5 million tonnes of coal per year which is primarily used for domestic steel making. Some coking and energy coal is also ...


  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

  • Frequency Converter energy savings on Boilers

    Boilers and heaters account for a significant share of a plant's purchased fuel cost. Combustion air fans are necessary to provide enough combustion air to the boiler or heater's burner system. Louvers, inlet guide vanes or frequency converters control the amount of air allowed into a boiler. Configuring a combustion air fan to allow the proper amount of air into the burner can improve boiler ...


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