cement kiln recycling Articles

  • Air pollution control through kiln recycling by-pass dust in a cement factory

    Over the centuries, air pollution has increased from a local nuisance to a global problem (Emberlin 1998). Cement industry is one of the most important and strategic industries in Iran. However, its air pollution has been a serious problem. The primary related pollution is dust, which industrial countries have allocated tremendous efforts in reducing its volume. Dust in different stages of a ...


    By University of Tehran

  • End-of-life Tires as an Alternative Fuel (TDF) in Cement Kilns: Now Easier than Ever!

    End-of-life tires are a challenging type of waste since they are difficult to shred and are expensive to treat and get rid of. However, tire derived fuel TDF is an extremely good alternative to the traditional fuels used in cement kilns, like oil, coal, and petroleum coke. The following blog presents a solution and explains how TDF can be used for heating cement kilns. ...


    By Tana Oy

  • Cement Manufacturing Industry - Pollution Prevention Guidelines

    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

  • Sample preparation for the analysis of secondary fuel in cement plants

    Secondary fuel can be a very inhomogeneous sample, containing all types of polymers, paper, wood and low fractions of metal. Also recycled wood or parts of automobile tires might be used as secondary fuel. Before using it as fuel in the production of cement, several chemical analyses are necessary as quality control. Cement is made by heating limestone (calcium carbonate), with small quantities ...


    By Fritsch Milling and Sizing

  • Co–processing waste materials in cement production: experience from the past and future perspectives

    The neglected, municipal solid waste management has become an important issue for national and local governments in developing countries in recent times, not only because of the tremendous rise of wastes but also of the resultant environmental degradation and rising public concern. Co–processing of waste in cement plants has been used as a treatment option for certain waste material in Europe, ...


    By Inderscience Publishers

  • Thermal Energy Utilization in Waste Tire Recycling

    Thermal energy utilization is one of waste tire recycling methods. Thermal energy utilization is used waste tires as alternative fuel. Is a high calorific value waste tire material, per kg higher calorific value than the wood of 69%, higher than that of bituminous coal 10%, 4% higher than Coke. But  the pollution is seriously direct ...

  • Towards a complete recycling of phosphorus in wastewater treatment – options in Germany

    Global reserves of mineral phosphorus are finite and the recycling of phosphorus from wastewater, a significant sink for phosphorus, can contribute to a more sustainable use. In Germany, Switzerland, and the Netherlands, an increasing percentage of municipal sewage sludge is incinerated and the contained phosphorus is lost. This paper reviews current technologies and shows that a complete ...


    By IWA Publishing

  • Sorting and Recycling Municipal Solid Waste (MSW) in Xiamen City, China - Case Study

    TOMRA Sorting Recycling is playing a pivotal role in the implementation of automatic sorting at the MSW plant in Xiamen Background The city of Xiamen, renowned for its natural beauty, is located on China's southeast coast, in Fujian Province. Its famous seascape and clean natural environment are a magnet for tourists, and the city government wants to keep things ...


    By TOMRA Sorting GmbH.

  • Abrasives case study - Essroc Materials, Inc.

    Plugging, Surging and Wear-Through Virtually Eliminated by Smart Elbows® At Essroc Materials, Inc., formerly Coplay Cement, plugging and elbow wear in pneumatic conveying lines caused unnecessary downtime and repair expense. The Frederick, MD, facility is a wet-process cement plant that produces 350,000 to 400,000 tons of cement a year using two 400-foot-long rotary ...


    By HammerTek Corporation

  • 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)

  • Study Charts a Future for Waste-Derived Fuels

    Pointers to possible future EU policy initiatives to give co-incineration facilities burning waste-derived fuels a strategic role in waste management have emerged in a study for the European Commission.1 The report suggests a policy focus on promoting source separation of municipal wastes, active discouragement of mass burn incinerators, and a levelling of the regulatory playing-field for ...

  • China’s plastic waste ban is an opportunity for a prosperous business

    The yards of waste management companies in Europe, America and all over the world have been filling up with waste this year. The waste import ban in China has created an acute need for new ways to treat plastic waste. Shredding plastic is a great first step in making money from plastic scrap. ...


    By Tana Oy

  • Shredding tyres stops zika virus breeding

    Zika is a dangerous disease threatening millions of people today in southern hemisphere. It is spread mostly by the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus). These mosquitoes bite during the day and night. Once you get bitten it is too late to do much but what is important is to prevent this mosquito from breeding. Mosquitos typically lay eggs near water because ...


    By Tana Oy

  • Waste shredding protects resources in Indonesia - Case Study

    Cement production is among the core activities of building materials supplier Holcim. Holcim Ltd. can boast the most expansive geographical action radius in the global cements industry thanks to its subsidiaries in over 70 countries on all five continents. Recently, the company successfully inaugurated a modern recycling center in collaboration with its environmental technology partner Geocycle ...


    By WEIMA

  • Refuse Derived Fuel, Current Practice and Perspectives

    Untitled Document Summary I OBJECTIVES The objectives of the project were to undertake a survey on the current ...

  • Holcim: SRF production with UNTHA shredders in Vietnam

    Work is underway to commission a Solid Recovered Fuel (SRF) manufacturing plant in Vietnam, for one of the world’s leading cement and aggregates specialists, Holcim. The plant will process solid footwear production waste from the country’s main shoe factory, to create a fossil fuel substitute that will power Holcim’s local cement kiln calciner. Following a global ...

  • Innovation and Investment Key to Success for Yorwaste (Waste shredder case study)

    With the opening of its new Solid Recovered Fuel (SRF) facility at the end of 2012, waste and recycling company Yorwaste is supporting a step-change within the UK waste industry with a shift in focus from waste processing to profitable fuel production. It is widely acknowledged that the UK must do more to reduce its landfill contributions and instead harness energy from waste – developing ...


    By UNTHA UK LTD

  • Las Vegas DirtWorkz, Inc.: Using the City’s wood waste to farm the desert

    Ray Becerra knows a thing or two about recycling, reusing and repurposing waste materials. You might even say it’s in his blood. Becerra has spent his entire life around landfills and farming operations, and he wears his passion for recycling waste materials on his sleeve. His enthusiasm for dust, dirt and debris, says Becerra, comes from his father, an avid recycler who was involved in the ...

  • Shredding tires is prosperous business

    Is your yard filled with piles of tires? And you do not know what do with them? Many recycling companies and landfills are struggling with used tires. Tires are among the largest and most problematic sources of waste, due to their shape and the large volume they require for storage.  However, tires are one of the most re-used waste ...


    By Tana Oy

  • Water Use in Concrete Production Higher Than Expected - Case Study

    Researchers uncover areas where better management may mitigate high water use Although many environmental impacts of concrete production have been well studied, little research has been dedicated to just how much water it uses. But, a study published in the journal Nature seeks to quantify the impact of concrete production on global water withdrawals, and it makes some dramatic ...


    By Fluence Corporation

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