EHS for Cement Industry Articles

  • Utilization of lime-dried sludge for eco-cement clinker production: effects of different feeding points

    Co-processing lime-dried sludge (LDS) in cement kilns is an appropriate technique to solve the problem of LDS disposal and promote the sustainable development for cement industry. However, there were limited studies that investigated the effects of feeding points on product quality and cement kiln emissions. In this study, simulated experiments were conducted by dividing the feeding points ...


    By IWA Publishing

  • 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

  • Comparative performance of cement kiln dust and activated carbon in removal of cadmium from aqueous solutions

    This study compared the performance of cement kiln dust (CKD) as industrial byproduct and commercially activated carbon (AC) as adsorbent derived from agricultural waste for the removal of cadmium (Cd2+) from aqueous solutions. CKD and AC were characterized by Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) and surface areas demonstrate the differences of ...


    By IWA Publishing

  • Cement and Lime Kilns case study

    Cement and Lime Kilns PROCESS DESCRIPTION Cement, lime and gypsum manufacturing processes have in common the mixing of inorganic minerals calcined at high temperatures typically using rotary kilns (vertical kilns are also used). CEMENT Regular Portland cements are the usual products for general concrete construction. The raw ...

  • Air Rule for Cement Kilns Requires 92 Percent Cut in Mercury Emissions

    Portland cement kilns will be required to reduce emissions of mercury by 92 percent as part of an Environmental Protection Agency final rule announced Aug. 9 that imposes controls for several toxic pollutants. Although most of the emissions standards in the final rule are less stringent than what the agency had proposed in 2009, the cement industry said the cost to operate the required controls ...


    By Ohio Lumex

  • Equilibrium analysis for heavy metal cation removal using cement kiln dust

    Ion exchange, reverse osmosis, and chemical precipitation have been investigated extensively for heavy metal uptake. However, they are deemed too expensive to meet stringent effluent characteristics. In this study, cement kiln dust (CKD) was examined for the removal of target heavy metals. Adsorption studies in completely mixed batch reactors were used to generate equilibrium pH adsorption ...


    By IWA Publishing

  • Vertical Roller Mill Refurbishment: `Speed and Reliability are critical,` explains Singapore

    At the beginning of May 2014, the Castolin Eutectic mobile intervention team performed a vertical roller mill (VRM) refurbishment operation in a cement plant in Switzerland. Vinay Paradkar, CEO and Technical Manager of Eutectic Singapore, was present on-site and explained the VRM wear problem and the Castolin Eutectic approach for a fast and long-lasting repair. ...


    By Castolin Eutectic

  • CPV gives a raft of support for wildlife islands

    Floating islands have been constructed by the pipework engineering company CPV Ltd for bio-engineering and erosion consultants Water-Lines Solutions Ltd. The floating islands, using a buoyancy subframe, were recently installed as part of a new nature reserve, now being created at a former quarry and landfill in Rugby. Prefabricated at CPV’s Romsey production site, a total of 106 frames ...


    By Water Active Ltd

  • CaO–LOI classification system for cement kiln dust

    Cement Kiln Dust (CKD), a residual of cement production, has been used effectively as a cement replacement, but there is a lack of guidance for its appropriate selection and performance in specific engineering applications. Since CKD is not a controlled product, the chemical composition and material properties differ from source to source like coal fly ash. This paper presents a dual–letter ...


    By Inderscience Publishers

  • Cement kiln dust landfill

    Client: Confidential Location: Southam, Rugby Services: Hydrogeological risk assessment , data interpretation. Issues: Poor background groundwater quality, dewatering, potential risk to controlled waters Summary: ESI provided the data analysis, interpretation and hydrogeological risk assessment ...


    By ESI Consulting Ltd

  • RDF for cement kilns

    The use of the cement has significantly contributed to the worldwide economies. In fact cement is considered to be the second most consumed substance in our society and apparently the amount of it, used in construction, is more than double that of the total of all other building materials, including wood, steel, plastic and aluminium. Nowadays the cement industry has important environmental ...


    By SatrindTech Srl

  • PC MACT proposal may signal widespread change

    On May 6, 2009, EPA proposed amendments to the National Emission Standards for Hazardous Air Pollutants from the Portland Cement Manufacturing Industry (PC MACT) in response to numerous petitions and court mandates. The proposed revisions present significant challenges to the portland cement industry by establishing a new lower maximum achievable control technology (MACT) floor that would require ...


    By Trinity Consultants

  • Mining Company

    This Pavilion customer is a leading producer of primary aluminum, fabricated aluminum and alumina serving numerous industries including: the automotive, packaging, building and construction, commercial transportation and industrial markets. The facility aimed to increase efficiencies of its kilns during its aluminum fluoride production. Based on their history of successfully delivering similar ...


    By Rockwell Automation, Inc.

  • A Sustainable Use for Dried Biosolids

    Lehigh Cement Company has conducted preliminary and in depth testing of Class A dried biosolids (DBS) as a fuel replacement in our cement kiln at Union Bridge, Maryland. Lehigh’s parent company, Heidelberg Cement, has been using DBS in European cement kilns for several years. These programs have proved the safety and environmental soundness of this concept. Lehigh’s ongoing development of these ...

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