chemical waste production Articles

  • Chemical production and characterisation of activated carbon from waste 'coffee grounds'

    Activated carbon was prepared from ground–coffee in this study. Experimental results reveal that for the ratio (0, 1 ÷ 0, 3) of coffee grounds to activating agents (ZnCl2, H3PO4) has not noteworthy influence. The rise temperature and carbonisation time respectively, in the interval of 500–700°C and ...


    By Inderscience Publishers

  • From Waste in Anodising Plant to New Chemical Product in Sewage Treatment Plants

    Aluminium containing caustic soda used as a pickling agent in the pre-treatment of aluminium before anodising and aluminium containing sulphuric acids used as electrolytes for the formation of oxide layers in anodising plants can be utilised in municipal sewage treatment plants to reduce phosphates and improve precipitation. From the anodiser's point of view, these products are spent once they ...


  • Cleaner Production in a Czech Chemical Company

    Overview Bochemie Bohumín Ltd. is the parent company of the Bochemie Group. Since it was founded, it has worked to meet health, safety and environmental requirements: for example by adhering to the chemical industry's Responsible Care programme. One of the most important steps it has taken so far to improve its environmental performance has been to introduce Cleaner Production (CP) in its ...


  • Chemical Spill Response Products & Procedures

    The current political and world climate has forced the Emergency Response Community to take a closer look at the number of potential hazards that they may be called upon to deal with. Of particular concerns are the response to terrorist and/or chemical incidents. Depending on the type of event, responders may be faced with a myriad of challenges and onsite dangers. With a chemical release, the ...


    By Fast-ACT

  • Biochemenergy: a project to turn an urban wastes treatment plant into biorefinery for the production of energy, chemicals and consumer's products with friendly environmental impact

    Urban bio-wastes (UBW) contain soluble bio-organics (SBO) with excellent surfactant properties are proven or expected to perform as bio-based products for use in chemical and environmental technology, in agriculture and in animal husbandry as well as or better than commercial synthetic products. On these basis, UBW are proposed as renewable sources of a wide number of products with potential sale ...


    By Inderscience Publishers

  • Financial risks and opportunities from toxic chemicals in products

    In this article, the author discusses how social response product development (or SRPD) is an essential strategy for avoiding the risks from toxic chemicals in products and seizing the opportunities that arise from developing safer alternatives. In World Inc., Bruce Piasecki focuses on Social Response Product Development (SRPD) as the core element of the Social Response Capitalism that is ...


    By AHC Group

  • Waste Reduction and Chemical Minimisation: Oxford Panels

    A program involving recycling, waste reduction and waste treatment, is saving Oxford Panels around $1,000 annually on waste removal cost alone. A 30% saving on the cost of raw materials such as thinners and sandpaper, has also been recorded. Importantly, staff morale has increased. They like the reduction in chemicals and pollutants in their workplace and take pride knowing they are actively ...


  • Chemical Recycling of Plastics Waste (PVC and other resins)

     Introduction For several years, debate has raged about the plastic PVC. Industry and environmentalists contend with each other virtually around the world. The environmentalists pursue a ban, industry aims to improve its environmental performance and believes that from an overall viewpoint there is no reason for such far-reaching measures against their material. In this context, the material ...


  • Estimating evolution of δ13CH4 during methanization of municipal solid waste based on chemical reactions, isotope accumulation in products and microbial ecology

    Natural isotopic composition in substrate may be used to reveal the metabolic pathways of substrate transformation by microbial community. In this paper, a change in δ13CH4 during methanization of reconstituted municipal solid waste was described using a mathematical model based on stoichiometric chemical reactions, equation for the 13C isotope accumulation in products at the low natural C13/C12 ...


    By IWA Publishing

  • Turn Waste Materials Into Useful Products With Briquetting Machines

    In today’s world, any approach that aims towards reducing pollution through renewable energy must be appreciated. The use of Briquetting machines is such an approach. The fate of fossil fuel is well known, and their resources are fast getting depleted from all corners of the world. Thus, ways to exploit alternative energy resources that are renewable and lessen our dependence on fossil ...


    By Jay Khodiyar Machine Tools

  • Progressing cavity pumps for pumping chemically aggressive liquids during biodiesel production

    Progressing cavity pumps reflect an established design with decades of usage in many industries and applications. Pumps of this type embody highly mature technical designs. For many years, improvements and innovations have been at the margins. Examples of design improvements include the 2/3-screw geometry, which is more economical than the 1/2-screw geometry that had been used exclusively for ...


    By ALLWEILER GmbH

  • Chemical and toxicological evaluation of transformation products during advanced oxidation processes

    The entry of pharmaceuticals into the water cycle from sewage treatment plants is of growing concern because environmental effects are evident at trace levels. Ozonation, UV- and UV/H2O2-treatment were tested as an additional step in waste water treatment because they have been proven to be effective in eliminating aqueous organic contaminants. The pharmaceuticals carbamazepine, ...


    By IWA Publishing

  • Influence of chemically enhanced primary treatment on anaerobic digestion and dewaterability of waste sludge

    To lower energy consumption at a sewage treatment plant (STP), primary settling could be enhanced to direct more chemical oxygen demand (COD) to anaerobic digestion (AD) for increased biogas production and decreased aeration. Primary settling can be chemically enhanced by applying flocculation aids (FAs). FAs are refractory compounds that may affect all sludge treatment facilities. In this ...


    By IWA Publishing

  • Comparing Capacity Expansion and Waste Minimization Options at a Chemical Manufacturing Facility

    ABSTRACTIndustrial wastewater treatment facilities that are nearing their capacity limit often have a relief option that typically is not available to municipal treatment facilities. That option is to reduce waste loads coming from the production areas by optimizing manufacturing processes so that less waste is generated per pound of product made. In making the decision between reducing waste ...

  • Chemical Engineering Magazine Article: Chemical Lifecycle Management

    Chemicals in production and laboratory environments alike have three distinct lifecycle phases: the first is procurement and inventory storage; the second is use in a manufacturing process or research program; and the third is post-use, including onsite handling, removal and beneficial reuse, recycle or disposal. A number of considerations including regulations, safety, material utilization ...


    By Clean Harbors

  • Study on Hazardous Household Waste with a main Emphasis on Hazardous Chemicals

    Introduction The aim of this study is to evaluate national experiences of the management of hazardous products likely to become hazardous household waste (HHW), and to make proposals for strategies for the appropriate management of such products within a lifecycle perspective. The study covers the fifteen Member States and two Accession Countries, namely Hungary and Romania. The data available at ...

  • Be Chemical Spill Ready

    The SDI Chemical Spill Kit, is a convenient laboratory spill kit with everything the emergency responder, EH&S professional, or employee who routinely uses chemicals, needs to neutralize, absorb, and render safe most small, routine chemical ...


    By Safety DImensions (SDI)

  • Parting the chemical curtain with GreenWERCS

    In May, with very little fanfare, Walmart introduced an extraordinary new tool known as GreenWERCS. GreenWERCS assesses the composition of chemical intensive products -- which is just about any non-food item on a Walmart shelf that you can pour, squeeze, dab or otherwise apply to your body or use in or around your home or car. GreenWERCS analyzes the composition of individual products from ...


    By UL - The WERCS

  • Chemicals used for pH Adjustment

    The Chemistry of Limestone Treatment: Limestone is an alkaline agent with the ability to neutralize, or partially neutralize strong acids. The neutralization process occurs when strong acids, in intimate contact with limestone chips, react with Calcium Carbonate (CaCO3, the primary constituent of limestone) to form water, carbon dioxide and calcium salts. The following depicts the neutralization ...


    By Digital Analysis Corp.

  • Best Practices for Chemical Management

    Introduction The costs of managing chemicals are far more than just the product price, but the life-cycle management of chemicals can be optimized to cut these peripheral costs. By adopting best practices, the chemical management process is more integrated into the business process, becoming a strategic advantage to the organization, raising efficiency on a number of fronts, decreasing legal ...


    By Chemical Safety Software

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