waste separation sieve Articles

  • Separation

    Introduction: Ex situ separation can be performed by many processes. Gravity separation and sieving/physical separation are two well-developed processes that have long been primary methods for treating municipal wastewaters. Magnetic separation, on the other hand, is a much newer separation process that is still being tested. Gravity Separation Gravity ...

  • Building waste and ballistic separator - a worthwhile matter

    Efficient sorting for sustainable recycling instead of just pure disposal. That is the motto for dealing with building waste.  What do you understand by the expression building waste? This is a collective expression for the diverse types of waste that occur on building sites. This includes mixtures of mineral and non mineral materials (e.g. stone mixed with wood, sheets of ...

  • The Atritor Turbo Separator

    Due to the changes in restrictions and the increase in the cost of landfill, the Gypsum Industry is looking for an alternative to handle the estimated 300,000 tons of new build plasterboard waste generated every year. The traditional way of separating gypsum from its backing is to use hammer mills, in conjunction with sieves, which is costly and generates a lot of dust.Atritor offers reprocessing ...


    By Atritor Limited

  • Solidification / Immobilisation of hazardous waste for subterranean storage

    The use of subterranean salt mines for the final storage of inorganic hazardous waste is state of the art in Germany, and in fact most other European countries. However, the technical requirements to prepare the waste in an appropriate way are quite challenging. Over ten years ago econ supplied a plant to a salt mine in eastern Germany. The plant uses econ’s unique batch-wise working mixing ...


    By econ industries GmbH

  • A hot chance: exhaustive anaerobic digestion of “grey waste” under temperatures of pasteurization

    According to German laws municipal residual refuse MRR (biowaste, paper and glass are collected in separate bins) must be nearly mineralized before it will be deposited in a landfill, since this material can still contain 20 - 50 % biogenous organic matter leading to gaseous and liquid emissions. Especially the high-organic sieve fraction of MRR below 40 - 60 mm and with a thermal energy content ...


    By ORBIT e.V.

  • Economical: Two-Stage Grinding of Valuable Plastic Waste

    Until now large cutting mills with high drive performances have been used for the single-stage crushing of large and heavy pipes, bulk plastic products etc. This leads to high investment volume, high sound emissions, frequent blade changes, high energy and personnel costs, among other things. On the other hand, two-stage crushing enables plastic processing companies to economically process ...


  • Pumps with extended service life for generating biogas from organic waste

    When regular commercial pumps are used to process organic waste, they typically wear out after only a short period of time. Liquids pumped under these conditions attack pumps from two different angles: first with highly abrasive additives and second with liquids that have highly fluctuating pH values and therefore a high level of chemical aggressiveness. These conditions are very tough on seals ...


    By ALLWEILER GmbH

  • High efficiency waste tyre to oil pyrolysis plant, xinxiang huayin

    Company Profile: Waste tyre to oil  pyrolysis plant use the pyrolysis technology which is a recycling technique converting rubber or tyre waste into fuels, monomers, or other valuable materials by thermal and catalytic cracking processes. Huayin renewable energy equipment company has been leading China oil pyrolysis plant field since 1993. Huayin company offers a wide range of ...


  • Development of wet pre-treatment and pulper technology

    Since 1984 BTA is involved in activities in the area of waste pre-treatment. This process was first implemented in 1986 in a pilot plant. The patented BTA-Process is consisting of the following main steps: - Wet pre-treatment of waste with separation of the contaminants and production of a pumpable suspension- Sand separation by a hydrodynamic grit removal system- Digestion of the suspension in ...


    By ORBIT e.V.

  • Wastewater treatment in a milk-processing company

    Description of the plant The accruing wastewater from the production of cheese and milk products is collected in a centralised pump sump and given to a first pre-treatment step. This step includes a separation of bigger parts by a sieve and a flocculation step with a dissolved air flotation for elimination of fats and cheese particles. After that, the pre-treatened water is buffered ...

  • The Scavenger: getting more out of shredder fractions

    Driven by the goal of enabling complete separation of shredder light fraction into streams with their own singular characteristics, work at Belgium-based recycling technology specialist AD REM has culminated in the launch of its latest piece of equipment - the Scavenger. This new development is also designed to process shredder heavy fraction eddy current drops. The initial objective when ...


    By AD REM N.V. (Valtech Group)

  • Identification of eco-efficiency opportunities in a small enterprise producing vegetable oil in Eskisehir, Turkey

    In this study, the current processes and technologies in a small enterprise, Demircanlar Oil Industry (Eskisehir, Turkey), were audited and improved from the eco-efficiency point of view. The eco-efficient management of the vegetable oil production processes has been performed on the units of physical processes, extraction and purification. The results obtained indicated that the loss in raw ...


    By Inderscience Publishers

  • Mud desanders and desilters used in solids control system

    Mud desander is the second stage in the operation of drilling solid control equipment, commonly used is 10"and 12" cyclones. Oilfield mud desander is mainly used for the separation of solid particles in drilling fluid to particle size 45-74 microns in diameter. According to the processing capability, the ...


  • Pyrolysis

    Introduction: Pyrolysis is formally defined as chemical decomposition induced in organic materials by heat in the absence of oxygen. In practice, it is not possible to achieve a completely oxygen-free atmosphere; actual pyrolytic systems are operated with less than stoichiometric quantities of oxygen. Because some oxygen will be present in any pyrolytic system, nominal oxidation will occur. If ...

  • Two Case Histories of Industrial Water Reuse Via Membrane Technology

    Abstract This paper describes two successful applications of ultrafiltration (UF) and reverse osmosis (RO) membrane technology used to reclaim water, reduce waste water discharge costs. The first case history covers oily waste water treatment at a major aluminum beverage can manufacturing plant. The second case describes treatment of waste water from a multi-plating bath section of a major ...


  • Aluminum Manufacturing Industry - Pollution Prevention Guideline

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • The use of oilfield shale shaker

    Shale shaker for solids control are devices that remove drill cuttings from the drilling fluid while circulating and drilling. There are many different designs and research into the best design is constantly ongoing since drilling fluids solids control is vital in keeping down costs associated with the drilling ...


  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Recycling asphalt shingles a boon for Minnesota C&D Recycler

    The Northeast Recycling Council estimates that more than 11 million tons of asphalt shingles are scrapped in the U.S. each year; 10 million from installation tear-offs and re-roofing jobs and another one million discarded as waste by asphalt shingle manufacturers. The U.S. Environmental Protection Agency estimates that shingle waste makes up 8 percent of the total building-related waste stream ...


    By Vermeer

  • Economy in car-making - powder metallurgy

    Powder metallurgy (PM) has made a major contribution to the technology of automotive manufacture over the past 70 years. It has been and is still the fastest-growing metalworking technology. Today, on average, it provides about 10kg of the total components of a car — more in the US, where cars are larger and use automatic transmissions in nearly all units sold and less in Europe and Japan, ...

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