EHS for Cement Industry Articles

  • Polish CEMEX cement plant relies on WEIMA - Case Study

    In the eastern Polish town of Chelm, not far from the Ukrainian border, the waste recycling company EkoPaliwa recently successfully commissioned their new plant for the production of alternative fuels. Two WEIMA PowerLine 3000 single-shaft shredders with a powerful hydraulic drive used in secondary shredding absolutely take center stage here. The main buyer of the produced Refuse Derived Fuel ...


    By WEIMA

  • Controlling Stack Emissions in the Wood Products Industry & Wood Fired Boilers

    Electrostatic precipitation has been a reliable technology since the early 1900's. Originally developed to abate serious smoke nuisances, the manufacturers of zinc, copper, and lead quickly found electric gas cleaning a cost efficient way to recover valuable product carried out of the stacks from furnace operations. Today electrostatic precipitators are found mainly on large power plants, cement ...

  • 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

  • EPA Settles Cement Air Pollution Case

    EPA recently settled a major pollution case with a cement producer on pollution controls that will reduce harmful emissions of nitrogen oxides. Nitrogen oxides are pollutants that can lead to illnesses such as asthma and other respiratory conditions. Nitrogen oxides contribute to the formation of ground-level ozone as well as particle pollution. EPA Regional Administrator, Judith A. Enck ...


    By Analytics Corporation

  • Selenium recovery from kiln powder of cement manufacturing by chemical leaching and bioreduction

    A novel process by using chemical leaching followed by bacterial reductive precipitation was proposed for selenium recovery from kiln powder as a byproduct of cement manufacturing. The kiln powder at a slurry concentration of 10 w/v% with 0.25 M Na2CO3 at 28°C produced wastewater containing about 30 mg-Se/L selenium. The wastewater was diluted four-fold and adjusted to pH 8.0 as ...


    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 ...

  • 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

  • Pollution monitoring in Cement Industry

    The rising use of waste based fuels in the cement industry, both for economic and Environmental objectives, combined with the strengthening of air emission regulations around the world is pushing many operators to face a wider list of pollutants to monitor this, with associated costs. The design of appropriate solutions meeting local regulation is the key to maximize the cost benefit of the fuel ...


    By Environnement S.A

  • 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

  • Affirmative Defense is Vacated for the Cement Industry

    I wrote a blog back in February that was intended to raise the awareness level of the cement industry regarding new requirements for their MACT operations and maintenance (O&M) plans.  As part of ...


    By All4 Inc.

  • Practical Buying Guide When You Need Rotary Kiln From kefan

    Rotary kiln for sale is to point to rotating calcining kiln, is a kind of mining machinery widely used in building material, metallurgy, chemical, environmental protection and many other production industry. Often do mechanically, physical or chemical processing of solid materials. At present, there are many rotary kiln ...

  • Assessment of environmental profile in the vicinity of Indian cement industry

    The present study focuses on an impact assessment of the cement industry on various social, environmental and public health issues. During the study, various socio–environmental issues, such as sex ratio, literacy rate, availability of basic amenities, disease spectrum, land use pattern, crop production, drinking water quality and the effect of emissions on vegetation were thoroughly addressed. ...


    By Inderscience Publishers

  • Utilisation of waste marble powder in cement industry

    Presently large amounts of slurry are generated in marble cutting plants with serious consequences on the environment and humans. This paper presents test results showing the feasibility of using waste marble powder (WMP) in cement industry as a substitute limestone. Also, it describes the formulation of new lime–based (CR II) cementitious materials derived from these industrial wastes. The ...


    By Inderscience Publishers

  • 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 ...

  • Cement - The one and only in Estonia

    Estonia is quite a small country and it also lacks good quality rock. However, in the northeast there are quality limestone deposits and also the only cement factory in the country. Today, Kunda Nordic Cement (KNC) follows proudly the tradition of cement production that started there in 1870. Now KNC belongs to the HeidelbergCement Group. Site, acquired recently by Kopar, has been a vital element ...


    By Kopar Oy

  • Cementing the PC MACT

    On September 9, 2010, the U.S. EPA promulgated the final amendments to the National Emissions Standard for Hazardous Air Pollutants from Portland Cement Manufacturing Industry (40 CFR 63 Subpart LLL), also known as the PC MACT. EPA’s self-proclaimed “historic” rulemaking includes some important implications for cement manufacturers and other sources that may be subject to ...


    By Trinity Consultants

  • Global warming, and role of supplementary cementing materials and superplasticisers in reducing greenhouse gas emissions from the manufacturing of portland cement

    This paper discusses some aspects of global-warming, and the role of supplementary cementing materials and superplasticisers in reducing greenhouse gas emissions to the atmosphere. The data are presented as to the CO2 emissions per capita per year from various countries. Also, the relative information is given on the availability of cement and supplementary cementing materials worldwide. The ...


    By Inderscience Publishers

  • Waste incineration in cement plants: constraints and development opportunities (a French-German comparison)

    Is it possible to reconcile economic and ecological concerns? This article examines, through a French-German comparison, the case of obtaining a calorific value for wastes used as substitute fuels in cement kilns. On the one hand, this new strategy for obtaining needed inputs offers to the cement industry an economic opportunity for lowering production costs (the main determinant of ...


    By Inderscience Publishers

  • 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

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