waste separation Articles

  • Treatment of Oily-Waste Process Streams

    Standard oily-wastewater remediation relies on API 650 for oily-wastewater separation (O/W/S) treatment using gravimetric lagoon separation, then reprocessing the recovered floatable slop oil, followed by chemical flocculation, then reprocessing the recovered oily sludge, followed by dissolved air flotation (DAF), then using holdingpond clarification of supernatant wastewater, before ...


  • Baseline Projections of Selected Waste Streams

    Abstract Waste represents an enormous loss of resources both in the form of materials and energy. Indeed, quantities of waste can be seen as an indicator of the material efficiency of society. Waste generation is increasing in the European Union, and amounted to about 3.5 tonnes of solid waste per person in 1995 (excluding agricultural waste) 1 Excessive quantities of waste result from: ...

  • Thin film composite type positively charged nanofiltration membrane for separation of aqueous streams and nuclear effluents

    Thin film composite type positively charged nanofiltration membrane developed by in situ polymerisation of functionalised polyethyleneimine and acid chloride has been used in various aqueous stream separations. The membrane contained fixed quaternary ammonium moieties which contributed to its positive charge. The membrane was tested for its performance in single solute feed systems containing ...


    By Inderscience Publishers

  • Making India`s waste streams sustainable

    MIT researchers are developing a decision-support tool to help cities in India sustainably manage the societal and environmental impacts of their waste. The massive Deonar dumping ground in Mumbai has become the most visible emblem of an increasingly serious nationwide problem for India: what to do with its trash. Deonar’s towers of garbage are ...

  • Digester Developers Target Mixed Organic Waste Streams

     emerging group of commercial companies see a viable business opportunity in North America around building, owning and operating larger scale anaerobic digestion (AD) facilities to process mixed organic waste streams. In some instances, the projects being proposed and constructed only include anaerobic digester operations. In others, there is a combination of digestion with back-end ...


    By BioCycle Magazine

  • Paper waste as far as the eye can reach - Case Study

    On the outskirts of Nashville, there’s a plant that’s making the most out of printing waste. Combined Resources is a paper recycler that encourages companies to “save money while reducing their carbon footprint.” For this reason, it makes a lot of sense that they own a WEIMA shredder. When you enter the plant, you’ll immediately see an enormous, red WEIMA WLK 18 ...


    By WEIMA

  • Jail waste streams provide unusual challenges to typical industry equipment

    Arlat ‘TS’ Filter Screen proves itself equal to the challenge. Unusually high volume of solids and the wide variety of materials in waste streams from correctional institutions provide unique challenges to today’s typical wastewater equipment. In recent years, the state of Virginia has installed five ARLAT ‘TS’ Filter Screens in correctional institutions. They use the screens to remove ...

  • Evaluation of second-generation Multistage Wastewater Treatment System for the removal of malodors from liquid swine waste

    Wastewater quality and malodors in a second generation implementation of environmentally superior technology (EST) were monitored over three cycles of pig (Sus scrofa) production and 15 mo. The wastewater treatment system consisted of three modules: solids separation, biological N removal, and P recovery/wastewater disinfection. While approximately more than 90% of the wastewater suspended solids ...

  • Several waste gas streams: Short, high concentration peaks and a constant medium concentration - Case Study

    Example: Production of synthetic resin Similar tasks: Chemical industry, batch processes in the pharmaceutical and plastics industry The production of high quality synthetic resin for marine paints and varnishes, coatings and repair materials, involves different waste gas streams. In addition to waste gas with a medium level of contamination, there is also a highly ...

  • Case study: Recycling system improvements

    Challenge A regional U.S. recycler required a more efficient processing solution for separation of construction and demolition waste. Their existing system could not meet the throughput or reliability demands of the incoming C&D waste stream. Approach The customer was proposed a solution integrating GK’s proven FINGER-SCREEN™ vibratory ...


    By General Kinematics

  • Water Recovery from an Aluminum Can Manufacturing Process Using Spiral-Wound Membrane Elements

    Abstract A waste treatment unit has been designed to recover water and various components from an aluminum can manufacturing process. Due to the scarcity of water in the Middle East and its inherent cost, water recovery is both necessary and cost effective. The manufacturing process generates: 1) an 11,356 L/hr (50 gpm) aqueous stream contaminated with hydrofluoric acid, dissolved aluminum, and ...

  • Hanbury Plastic Recycling – Stoke on Trent, UK case study

    CUSTOMER HPR Limited creates high quality plastic feedstock materials, by sorting co-mingled commercial, industrial and post-consumer waste into separated polymer streams of high purity since 2011. HPR Limited process 40,000 tonnes/year of mixed kerbside collected plastic material. SITUATION HPR were looking for a solution to sort efficiently ...

  • Chemplast, mettur india, selects HERO + ZLD

    The Facility Chemplast Sanmar Limited is the flagship company of the Sanmar Group, a leading industrial house in South India. They manufacture Chlorochemicals, PVC Resins, Caustic Soda / Chlorine, Chlorinated Solvents and Silicon Wafers. The Chemplast Mettur plant uses the Cauvery River as their main fresh water source. A strong industrial growth in recent years has resulted in ...

  • San Francisco Expands Commercial Organics Recycling

    In San Francisco, commercially generated organics (primarily food residuals) are being diverted from the landfill through a variety of programs with different types of generators, collectors and processors/markets. These efforts include: Redistribution of edible discarded produce and other food, including prepared foods from restaurants; conversion of food processing waste and inedible produce ...


    By BioCycle Magazine

  • WEEE – aren’t materials too precious to lose?

    Chris Oldfield, managing director of UNTHA UK, was interviewed by leading journal MRW magazine recently, on the subject of WEEE. Drawing upon his specialist industry insight he commented on the methodology used to process WEEE and the extent to which the sector needs to go ‘back to basics’ to ensure precious materials are not lost. Conversation surrounding recyclate quality has ...


    By UNTHA UK LTD

  • Kerbside Recycling: Indicative costs and performance

    The increase in national recycling rates achieved by local authorities since the publication of Waste Strategy 2000 has been impressive. The growth from 7% to 31% in 2006/07 has been achieved through a mixture of investment and ingenuity, but it has resulted in the creation of a number of different collection systems with many local variations. Although opinions about the merits of the different ...

  • Florida recycling operation grinds out profits with high-production machine

    A green waste recycling business started in South Florida in 2001 is already showing signs of success in its founding year. At a site located near growing population centers and equipped with productive and reliable equipment, Nu-Way Recycling Corp. is perfectly positioned to capitalize on its production capacity while at the same time diverting a sizeable stream of organic waste from landfills ...


    By Morbark, LLC

  • Wood recycling is cornerstone of new Tallahassee C&D facility

    For better than four decades, the Williams family, owners of Marpan Supply, Inc., have been in the container services business in and around the Tallahassee area. And for the last 15 years or so, steady area growth meant that waste stream has been heavy with construction & demolition (C&D) debris. Seeing that, prompted Kim Williams, son of Marpan's owner and founder, to question the logic ...


    By Morbark, LLC

  • New Recycling Era for NYC

    Untitled Document New 20-year contract between the city and large-scale recycler ...


    By BioCycle Magazine

  • Wastewater Treatment & Recycle

    Fresh water is a scarce commodity; this fact is well acknowledged by one and all. People at all levels be it general public, governmental bodies, and industries understand the implications of good quality water availability in terms of quantity, cost and wastage. As a consequence, there is a growing consensus on wastewater treatment for recycle/reuse. This paper briefly describes the treatment ...

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