Waste & Recycling Articles

  • Full scale optimisation of sludge dewatering and phosphate removal at Harnaschpolder wwtp (The Hague, NL)

    At Harnaschpolder wwtp phosphate removal from wastewater and sludge dewatering is optimised by dosing magnesium hydroxide to digested sludge. To optimise sludge dewatering and phosphate removal, a full-scale test has been executed since August 2015 using temporary equipment. In this test magnesium hydroxide is added to the digested sludge buffer. Significant positive results are achieved. An ...


    By IWA Publishing

  • FOG Waste receiving and processing facility design considerations

    Fats, Oils, and Grease (FOG) wastes and high-strength wastes (HSW) are frequently received at municipal water resource recovery facilities (WRRFs) as trucked-in wastes. These wastes offer significant benefits in terms of revenue from tipping fees and feedstock for co-digestion in anaerobic digesters that produce biogas, which can be beneficially used as fuel. The number of treatment plants ...


    By IWA Publishing

  • January Anaerobic Digest

    San Francisco Bay Region, California: ABC Digester Operator Training Course The American Biogas Council (ABC) has organized a 3-day, hands-on operator training course, February 6-8, 2018 in the San Francisco Bay area, that focuses on digester operations overall with an additional emphasis on renewable natural gas (RNG) and codigestion at wastewater treatment plants. Each morning starts ...


    By BioCycle Magazine

  • Monitoring for the golden balance

    On Herøya in Porsgrunn, Yara has an ammonia plant, three nitric acid plants and a calcium nitrate plant. Together the plants produce a wide range of fertilizers that meet the requirements for fertilization ...


    By NEO Monitors AS

  • Likeng II: Guangzhou, China Waste-to-Energy Plant - Case study

    Babcock & Wilcox Vølund’s license partner Grantop (Guangzhou Environment Protection Investment Co. Ltd.) has completed the Likeng II waste-to-energyplant in Guangzhou, China. The plant is one of the largest Chinese ...


    By Babcock & Wilcox MEGTEC LLC

  • Eastney -  Horsham, West Sussex - Case Study

    Project summary: ERG was contracted by Southern Water to provide increased air extraction and upgraded odour control at the Eastney Headworks site in Portsmouth. Key project data: The upgrade works more than doubled the extracted air flowrate to the odour control unit from 20,700m3/hr to 48,500m3/hr was completed with live sewage flow ...

  • Wood Recycler Expands Into Compost Manufacturer

    How a company that started as a small tree care service in the late 1980s evolved into a compost and mulch manufacturer with multiple facilities in the Southeast U.S. Our growth since the beginning can be summed up pretty easily — we’ve gone where our customers have needed us to go,” explains Chris Cowart, owner of Cowart, Inc., a large producer of high quality composts and ...


    By BioCycle Magazine

  • Interview with the Tomra founders

    As part of TOMRA’s 45th anniversary celebrations this year, we spoke to co-founders and brothers Tore and Petter Planke about the early history of the company. Check out our video interview with the TOMRA founders. HOW IT ALL BEGAN In 1971, Aage Fremstad, a supermarket owner Petter had worked with previously, mentioned the store’s problems in manually ...


    By TOMRA Sorting GmbH.

  • Harden organic waste management project in Taohua Island, Zhejiang

    Benefit of Organic Waste Management  Organic materials come from living plants and animals, like fruit and vegetables waste, kitchen waste, supermarket waste, expired food waste, etc. Organic waste are best managed as a resource rather than a waste. Organic waste are part of our life, how to manage organic waste and turn them into valuable and clean resource is a high ...

  • Spray drying of Ceramic materials - Case Study

    Customer: CNR (National Research Council), ISTEC (Institute of Science and Technology for Ceramics), Italy The research activities are addressed towards material and processing innovations, aiming to satisfy the requests from the industrial sectors and from the national scientific and cultural community for various application fields. The center focuses on the development of competency ...


    By BÜCHI Labortechnik AG

  • Sepacore for the Separation of Plant Extracts - Case Study

    Customer: University of Basel, Switzerland The Division of Pharmaceutical Biology at the University of Basel in Switzerland is a center of excellence for natural product and medicinal plant research. It belongs to the Departement of Pharmaceutical Sciences, a leading research and teaching center in drug discovery & development, drug therapy and drug safety. Research groups ...


    By BÜCHI Labortechnik AG

  • Rotavapor R-220 for drying and distillation - Case Study

    Customer: AstraZeneca Pharma India Ltd., India AstraZeneca Pharma India Ltd (AZPIL) is a subsidiary of AstraZeneca, UK. AZPIL is engaged in the manufacturing of formulations and API’s. Application: We mainly handle compounds which are very temperature sensitive. Various reaction products at different stages of production are to be ...


    By BÜCHI Labortechnik AG

  • EPA Compliant Due to Sufficient Solvent Recovery - Case Study

    Customer: Con-Test Analytical Laboratories, USA Con-Test Analytical Laboratory provides environmental and hygiene analytical services with the capability of analyzing nearly all water, air, soil, and solid materials. Application: US EPA 608 US EPA Method 608 covers the determination of certain organochlorine pesticides found in industrial waste ...


    By BÜCHI Labortechnik AG

  • The Safety Issues in Valve Installation

    In the design of the valve system, the following points need to be considered: 1. Control valve seal design. Single-seat valve can reach less than 1 drop per hour leakage. Double seat valve is difficult to close tightly. Therefore, the switching to a single seat valve must be an optional choice. 2. Large amounts of high-pressure fluid trapped between shut-off valves ...


    By Adamant Valves

  • Microbial characteristics of landfill leachate disposed by aerobic moving bed biofilm reactor

    An aerobic moving bed biofilm reactor (MBBR) was applied to treat landfill leachate generated from a domestic waste incineration plant. Pollutant removal efficiency of this reactor under stable operating condition was studied. The biomass, bacteria species, and microbial metabolism in this reactor were investigated. These results showed that the average removal efficiency of chemical oxygen ...


    By IWA Publishing

  • A time to reflect … and to look ahead

    Past achievements and future targets for the world’s leading incinerator specialists It’s almost Christmas and another (extremely hectic) year is now drawing to a close.  So although it is a time when we can look back with enormous pride on twelve months that were crammed with impressive achievements and at a few of the momentous moments in our calendar, it also time to ...

  • The Reasons and Measures of Ball Mill Low Grinding Efficiency

    With the continuous improvement of mechanization level in China, ball mill also develops to the trend of large-scale. But after the large-scale, coupled with ball mill equipment structure, process configuration, and other factors, resulting in production cost increased, grinding efficiency decreased. Next Fote machinery (ftmmachine.com) will analyze the reasons for ...


  • Ecology and performance of aerobic granular sludge treating high-saline municipal wastewater

    The successful development of aerobic granular sludge (AGS) for secondary wastewater treatment has been linked to a dedicated anaerobic feeding phase, which enables key microbes such as poly-phosphate-accumulating organisms (PAOs) and glycogen-accumulating organisms to gain a competitive advantage over floc-forming organisms. The application of AGS to treat high-saline sewage and its ...


    By IWA Publishing

  • Plant reduces utility expenses with new emission control system - Case Study

    The steadily increasing natural gas prices near the end of 2004 were becoming a substantial operating cost burden on a facility producing automolive painl and coatings and developing coating products. The major consumers of natural gas at this facility were the main system of boilers which supplied steam energy throughout ihe facility and two Regenerative Thermal Oxidizers (RTOs) which controlled ...

  • 10 more memories from the TOMRA team

    As we wrap up our 45th anniversary year at TOMRA, the team at TOMRA Collection Solutions shares their anecdotes from working at the company. From across the globe and across teams, some have worked here for almost 40 years and some for just a few months – and here are their stories. Ingrid Tronstad, Project Manager Brand (Norway) Celebrating this year ...


    By TOMRA Sorting GmbH.

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