decentralized energy Articles

  • Decentralized Wastewater Treatment

    An application used worldwide, now growing in US to address the needs of small communities and developments Conventional sewer operations managed by small communities provide centralized treatment of wastewater of which residents are accustomed. But the expense of operating these systems as they expand with miles and miles of sewer lines is staggering. Expanding sewer line infrastructure, ...


    By Bio-Microbics, Inc.

  • Decentralized wastewater management in Kieu Ky Vietnam

    1. Overview and Key Points In order to eliminate the common ‘out of sight out of mind approach’ in sanitation, whereby sewers and/or drains are discharged into rivers, a Decentralized Wastewater Treatment System (DEWATS) was designed and implemented in Kieu Ky to treat wastewaters arising residential properties and various craft industries. A clear understanding of topography, ...


    By IWA Publishing

  • An Infrastructure Grows · Decentralized Treatment and Recycling Domestic Wastewater

    THE TERM, “decentralized waste-water management,” refers to the process of treating and discharging treated wastewater in the local vicinity where it is generated. Decentralized systems typically use the soil as the final receptor of the treated wastewater instead of discharging to surface waters, which are generally the receptors of treated wastewater from larger centralized treatment plants. ...


  • Introduction to Decentralized Packaged Wastewater Treatment (PWWT) Systems - PDH Article

    Learning Objectives After reading this article, you should understand: Functions and processes of a decentralized PWWT system; Design considerations of a PWWT system. Overview "Clean water will be the oil of the 21st Century." The accuracy and magnitude of this statement is resonating worldwide. ...

  • Sewage pre-concentration for maximum recovery and reuse at decentralized level

    Pre-concentration of municipal wastewater by chemically enhanced primary treatment (CEPT) was studied under controlled laboratory conditions. Both iron and aluminium-based coagulants were examined at gradually increasing concentrations (0.23, 0.35, 0.70 and 1.05 mmol/L). The CEPT sludge generated from different coagulation experiments was digested in batch anaerobic reactors, while the ...


    By IWA Publishing

  • Reinvent the toilet: the NUS experience of building a decentralized toilet for energy, water and resource recovery

    In conventional activated sludge (CAS) treatment of sewage, the pollutants are mostly dissipated and hardly any reuse is present. This makes wastewater treatment very energy intensive and not sustainable in the future. Instead, sewage should be considered as a renewable resource, from which value can be extracted in the form of water, energy and nutrients (mostly nitrogen, N, phosphorus, P and ...


    By IWA Publishing

  • Introducting a New Media for Fixed-Film Treatment in Decentralized Wastewater Systems

    ABSTRACTBoth naturally occurring and artificial media have been used to treat wastewater in small community settings. Systems using naturally occurring media include sand filters and peatbased biofilters. Artificial media include open cell foam, textiles, and plastics. All the above operate as fixed-film systems, in that attached growth microorganisms are encouraged to colonize and reproduce in ...

  • Life Cycle Assessment of Decentralized Wastewater Systems and its Comparison to Centralized Wastewater systems

     ABSTRACT The typical process flow of collecting, treating, and disposing wastewater – identified as the centralized approach – consumes large quantities of energy while releasing environmental emissions. The traditional wastewater treatment plant design is developed on the premises of economies of scale, assuming unit costs to treat wastewater decrease as the plant capacity increases. ...

  • Energy from biogas

    From an ecological and economical perspective, biogas is an important source of energy. The fossil resources are limited, and they impose a high burden on the environment. A resourceconserving alternative made from biomass poses a different scenario. The raw material is renewable, and conversion only releases as much CO2 as was previously contained by the source material. With the technological ...


    By Triangle Ltd

  • The shifting landscape for renewable energy in the UK

    The UK Government has a commitment to reduce the UK’s greenhouse gas emissions by at least 80 percent by 2050 (from 1990 levels). As a result, the UK landscape surrounding renewable energy is shifting rapidly to help deliver a low carbon future. Recently, there have been a number of national consultations which are likely to have a significant bearing on the future viability of non-fossil ...


    By Waste Advantage Magazine

  • Climbing the Solar Energy Ladder – New approach for energy-starved rural poor

    Access to electricity is crucial for sustainable economic development. Yet 1.3 billion people around the world live without basic access to electricity. Many of these people rely on unhealthy polluting kerosene lamps for nighttime lighting. Those with access to electricity in the developing world often rely on coal- or diesel-based grid power. ...


    By GLOBE Foundation

  • The future of energy management through the eyes of Siemens

    "In a 'software world' or a world where the power grid has started to become a large part of the 'internet of things', one cannot succed without leveraging partners." Exclusive Interview with Dr Jan Mrosik, CEO, Smart Grid Division at Siemens, Germany. We are proud to welcome Siemens as exclusive Diamond Sponsor for European Utility Week ...


    By Synergy Events

  • It’s time to invest in clean energy in Africa

    Private-sector investment in electricity is sitting on the sidelines in Africa. Here’s how we can change that. The math for Africa’s clean energy future is adding up. Solar lamps are spreading like fireflies across Ghana. A first-of-its-kind solar farm in Rwanda is providing electricity for 15,000 rural homes. Utility-scale solar and wind projects are being built in ...


    By Ensia

  • Every company needs a corporate energy manager

    Guest blog Vice President of Sustainability Consulting, Groom Energy www.groomenergy.com   Why do so many companies fail to capitalize on the abundant opportunities to save money through improved energy purchasing and efficiency?   One reason may be the lack of high-level positions for energy management at many ...


    By Energy Efficiency Markets

  • Plasma resource recovery technology –converting waste to energy and valuable products

    Abstract Plasma Resource Recovery (PRR) is a revolutionary technology that can treat virtually any type of waste by combining gasification with vitrification. Vitrification produces inert slag that can be used as a construction material. Gasification produces a fuel gas containing carbon monoxide (CO) and hydrogen (H2), used for cogeneration of electricity and steam. The plasma fired ...


    By PyroGenesis Canada Inc.

  • Hesse is well on its way to becoming `Model for regenerative Energies`

    Hesse has made it a goal to guarantee a long-term secure and inexpensive energy supply for economy and consumers that meets the demands of environment and climate protection. For that purpose, Hesse wants to raise its proportion of renewable energies in its energy consumption to 15 percent. The new Renewable-Energies-Law (Erneuerbare-Energien-Gesetz: EEG) as well as the ...


    By Energy-Server - REECO GmbH

  • Africa’s green energy challenge: Mega projects, off-grid or somewhere in between?

    South of the Sahara, getting electricity to 620 million people may require an all-of-the-above strategy. A 310-megawatt wind farm sprouting up in a remote, barren landscape near Lake Turkana in northern Kenya has the clean energy world buzzing — and for good reason. Africa’s largest wind farm, with 365 towering turbines, is creating more than 500 stable jobs in an ...


    By Ensia

  • Collaborative Development and Demonstration of an Optimised Model for Remote Village Electrification Using Renewable Energy

    This project aims to develop and demonstrate a highly replicable model for remote village electrification in India, using solar PV and other technologies. In doing so, Partner countries plan to build capacity within India’s renewable energy technical service provider network, and also improve the technical support for, and increase the sustainability of decentralized generation and renewable ...

  • Helping clean energy entrepreneurs turn on the lights in poor countries

    A social entrepreneur invests the little working capital she has to bring solar electricity to a community that –like 1.2 billion people worldwide– lacks access to electricity. The community used to use dirty, ...

  • Fuel cell heating appliances field tests

    The beginning of field tests with a new generation of fuel cell heating appliances (FCHAs) under the responsibility of Vaillant brings fuel cell technology for decentralized household energy supply into a new phase. The objective of testing the systems, which were developed in close cooperation with the US company Plug Power, is to examine how complexity and thus the systems' costs can be ...

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