Technology

  • Replacement Tool for Wastewater Pumps

    Replacing old wastewater pumps with new ones will improve the performance and efficiency of wastewater systems immediately. With the new Grundfos Replacement Tool it is easy to select the right pump for a specific application

    Changing social behaviour has reduced water consumption significantly while more fibrous material ends up in the collection system. This makes the wastewater tougher to transport - and poses much greater risk of clogging and in turn downtime. At the same time energy usage is a core concern.

  • Nitrate and Ammonia Removal from Wastewater

    Microvi’s Wastewater Technology Reduces Ammonia, Nitrate

    A third-party evaluation conducted by the Johns Hopkins University/MWH Alliance has demonstrated that Microvi Biotechnologies’ innovative biocatalytic technologies for nitrification and denitrification are effective in treating wastewater for nitrogen removal.

  • CARBONIZING URBAN BIOWASTE FOR LOW-COST CHAR PRODUCTION IN DEVELOPING COUNTRIES

    Technology
    86 VIEWS
    Description: 

    A Review of Knowledge, Practices and Technologies Christian Riu Lohri, Dan Sweeney, Hassan Mtoro Rajabu 

    This report reviews existing knowledge on char-making to help stakeholders understand under which circumstances carbonization of municipal biowaste may be feasible. The report starts with a general overview of common municipal solid waste management challenges in low-and middle-income countries. It then summarizes the current situation regarding conventional charcoal production and consumption as cooking fuel, reviewing some of the trends and theories behind the concept of ‘household fuel switching’. It also describes biomass carbonization in details, i.e., input requirements, chemical conversion processes and output properties, and reviews information on existing biomass-to-char technologies: e.g., process and reactor types, capacity, construction materials, conversion efficiency, energy source, residence time, emissions, fixed carbon yield, auxiliary requirements, working life and capital cost. This part of the report draws heavily from literature on wood pyrolysis because there is limited information on slow pyrolysis of biowaste. The last chapter draws an analysis of the feasibility of biowaste carbonization in cities of developing countries and highlights challenges, opportunities and areas for further research. This review concludes that the high demand for carbonized fuel in cities of low-and middle-income countries has created the market for waste-derived char briquettes. Yet, a major challenge to their production is having continuous access to dry, unmixed, homogeneous, uncontaminated substrates, which are available at no or low costs. In other words, a good supply of source-separated wastes that can be obtained near the point of their production is needed. Furthermore, most existing carbonization systems are either inefficient and polluting or relatively expensive. For a sustainable and financially viable waste-to-char business an appropriate, locally manufactured and operated, cost-effective system is required, which is non-polluting and energy-efficient with controlled use of all combustible by-products and waste heat. 

    Keywords Carbonization, char briquettes, charcoal, cooking fuel, organic solid waste, slow pyrolysis, decentralized recycling, waste-to-energy, low- and middle-income countries Bibliographic reference Lohri, C.R., Sweeney, D., Rajabu, H.M. (2015): Carbonizing Urban Biowaste for Low-Cost Char Production in Developing Countries - A Review of Knowledge, Practices and Technologies. Joint Report by Eawag, MIT D-Lab and UDSM. 

  • Wave Energy Farm for Largest Naval Base In Australia

    The Australian company Carnegie Wave Energy Limited has just announced that a three-unit array of its CETO 5 wave energy generators is now up and running at the Perth Wave Energy Project, located off Garden Island in Western Australia, making it the first operating wave project in the world to be composed of multiple, connected units

  • New Drinking Water Treatment System by FilterBoxx

    FilterBoxx Announces New Fully Operating Potable Water Treatment Plant

    Calgary, Alberta (March 16, 2015): Mr. Larry Novachis, Chief Executive Officer at FilterBoxx Water & Environmental Corp., announces the successful delivery of a new potable water treatment plant to the Sunday Creek site located in Fort McMurray, Alberta.

  • Shanghai Jianglang Fluid Machine Manufacturing Co., Ltd

    Shanghai Jianglang Fliud Machine Manufacturing Co.Ltd is located in Jinshan District, Shanghai, Chinas, mainly produces air operated diaphragm pumps and control valves. The company own first-class engineers engage in fluid equipment design and manufacturing engineering, combined with advanced machining center, CNC machine tools and flow testing and monitoring equipment, greatly satisfy customers in the field of microprocessor control, electric, pneumatic control and so on automatic devices, well provide users with exact valve flow curves, tube flow rate, pressur

  • WASTEWATER TREATMENT TECHNOLOGY FOR TANNING INDUSTRY

    Industry Tags: Wastewater Treatment
    Technology
    48 VIEWS
    Description: 

    WASTEWATER TREATMENT TECHNOLOGY FOR TANNING INDUSTRY

    A paper by- R. A. Ramanujam

    Department of Environmental Technology, Central Leather Research Institute, Chennai, India

    R. Ganesh

    Department of Environmental Technology, Central Leather Research Institute, Chennai, India

    J. Kandasamy

    Faculty of Engineering and IT, University of Technology, Sydney, Australia 

  • Chemical and biological treatment technologies for leather tannery chemicals and wastewaters: A review

    Industry Tags: Wastewater Treatment
    Technology
    61 VIEWS
    Description: 

    Chemical and biological treatment technologies for leather tannery chemicals and wastewaters: A review

    A research Paper by - Giusy Lofrano a, Sureyya Meriç b, Gülsüm Emel Zengin c, Derin Orhon c

    a Department of Environment, Waste Division, Salerno Province, via Mauri, 61–84132 Salerno, Italy
    b Namık Kemal University, Çorlu Engineering Faculty, Environmental Engineering Department, Çorlu, Tekirdağ, Turkey
    c İstanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Maslak, 34669 Istanbul, Turkey 

  • Report of the Nova Scotia (Canada) Independent review panel on Hydraulic fracturing (fracking)

    42 VIEWS
    Description: 

    The Nova Scotia Department of Energy commissioned the Verschuren Centre for Sustainability in Energy and the Environment at Cape Breton University to conduct an independent review and public engagement process to explore the social, economic, environmental, and health implications of hydraulic fracturing practices and their associated wastewater streams.  Dr. David Wheeler, President and Vice-Chancellor of Cape Breton University convened and chaired the 10 person Expert Panel on Hydraulic Fracturing.

  • App Monitoring Water and Fertilisers

    CropManage, a free online application that calculates the precise water and fertilizer needs of farmers’ crops

    In the Salinas Valley, four years of drought demand efficient irrigation practices, and strict water regulations require reducing nitrate contamination in the groundwater. Luckily, necessity is still the mother of invention — and in the digital age, invention takes the form of apps.

  • New Filter by Liquidity Nanotech

    Liquidity's Naked Filter instantly cleans water through a web structure of nano-fibers, removing 99.9999% of bacteria

    Liquidity, a Silicon Valley startup, provided an early preview today of its forthcoming new product that aims to make safe, germ-free water readily available to millions of consumers everywhere.

    Victor W. Hwang, Liquidity’s CEO, stated, “We are proud to announce the world’s most powerful water filter ever for personal, portable use. It enables anyone to make their own healthy water anywhere, anytime.”

  • Induced Seismicity Potential in Energy Technologies

    Technology
    60 VIEWS
    Description: 

    Since the 1920s we have recognized that pumping fluids into or out of the Earth has the potential to cause seismic events that can be felt. Seismic events in Basel, Switzerland between 2006 and 2008 were felt by local residents and were related to geothermal energy development. A string of small seismic events in Arkansas, Ohio, Oklahoma, and Texas in the past several years has been related to waste water disposal associated with oil and gas production. These seismic events have brought the issue of induced (human-caused) seismicity firmly into public view. 

    Anticipating public concern about the potential for induced seismicity related to energy development, Senator Bingaman requested that the Department of Energy conduct study of this issue through the National Research Council. The study was designed to examine the scale, scope, and consequences of seismicity induced during the injection of fluids related to energy production; to identify gaps in knowledge and research needed to advance the understanding of induced seismicity; to identify gaps in induced seismic hazard assessment methodologies and the research needed to close those gaps; and to assess options for interim steps toward best practices with regard to energy development and induced seismicity potential.

    This study took place during a period in which a number of small, felt seismic events occurred that been caused by or were likely related to fluid injection for energy development. Because of their recent occurrence, peer-reviewed publications about most of these events were generally not available. However, knowing that these events and information about them would be anticipated in this report, the committee attempted to identify and seek information from as many sources as possible to gain a sense of the common factual points involved in each instance, as well as the remaining, unanswered questions about these cases. Through this process, the committee has engaged scientists and engineers from academia, industry, and government because each has credible and viable information to add to better understanding of induced seismicity. 

    Three major findings emerged from the study: (1) the process of hydraulic fracturing a well as presently implemented for shale gas recovery does not pose a high risk for inducing felt seismic events; (2) injection for disposal of waste water derived from energy technologies into the subsurface does pose some risk for induced seismicity, but very few events have been documented over the past several decades relative to the large number of disposal wells in operation; and (3) CCS, due to the large net volumes of injected fluids, may have potential for inducing larger seismic events. 

     

     

     

    Copyright 2012 by the National Academy of Sciences. 

  • Hybrid Home Water Purifier by Waterlogic

    Waterlogic® – the European-based leader of manufacturing and global distribution of point-of-use purification systems – is proud to announce the launch of the Hybrid Home Water Purifier

  • Bluewater Tidal Energy at Remote Locations

     

    Bluewater BlueTEC Tidal Energy Converter, renewable energy from the tides

    Source: Bluewater Hoofddorp

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  • Water Purification Systems with 24/7 Monitoring

    EMD Millipore’s AFS 40E, 80E, 120E and 150E water purification systems have been developed to provide clinical laboratories with an economical and reliable water purification solution for daily water volumes of up to 3000 L

  • Subway Waste Water to Heat

    Glasgow Subway to pilot technology that converts waste water into heat

    New heat pumps will be installed by the end of March at two stations on Glasgow's Subway network after researchers spent nearly 18 months looking for ways to turn the waste water which leaks into the Victorian tunnels into an energy-efficient power source.

    Humid air which collects in the tunnels will also be captured as used a heat source as part of the same pilot scheme, to test which method is more effective.

  • Sundrop Farms' Solar Tech Saves Water

    A commercial greenhouse that grows tomatoes using desalinated water produced by solar-thermal technology will save 700 million litres of freshwater and 14,000 tonnes of CO2 equivalent a year

  • ACO Marine Launched a New Water Recovery System

    Water recovery system that gives vessel owners greater capacity to reuse the treated effluent from wastewater treatment plants introduced by ACO Marine

    Prague, Czech Republic, headquartered wastewater treatment systems specialist ACO Marine has launched a  water recovery system that gives vessel owners greater capacity to reuse the treated effluent from wastewater treatment plants.

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