Waste Production Articles

  • Chemical recovery - Recycle Fluid Technologies, Inc. - case study

    Application Recycle Fluid Technologies, Inc., of Richland Michigan recovers ethylene glycol of higher purity and greater volumetric yield. The recovered product must meet stringent General Motors and ASTM Standards. Waste Description The used ethylene glycol contains inhibitor salts, ash, dissolved metals, organic acids, motor oils and other variable ...


  • ThyssenKrupp Elevator Rises to the Top in Transparency and Disclosure

    ThyssenKrupp Elevator Americas knows elevators. In fact, the company is one of the leading producers of elevator technology in the world, with over 13,500 employees in more than 200 locations across the western hemisphere. ThyssenKrupp Elevator Americas understands that with its size and market share come environmental responsibility – a responsibility it takes very seriously. ...


    By thinkstep

  • Improved methane production from waste activated sludge with low organic content by alkaline pretreatment at pH 10

    Sludge with low organic content always results in an unsatisfactory performance, even failure of anaerobic digestion. The alkaline pretreatment effect on anaerobic digestion of sludge with low organic content has seldom been studied although it gives many benefits for sludge with high organic content. In this study the influence of alkaline pretreatment (pH 10, an effective alkaline pH) on the ...


    By IWA Publishing

  • Management of waste product from watermelon for culture and production of mosquitocidal toxins (bio-pesticide)

    Watermelon rind (WMR) discarded as bio-organic waste, is rich in carbohydrates. The present study emphasises the utilisation of this solid waste for the production of biopesticide ( Bacillus thuringiensis subsp. israelensis , Bti ), to control disease transmitting mosquito vectors. An experimental culture medium was prepared by extracting the filtrates ...


    By Inderscience Publishers

  • 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

  • Urban sanitation: Entrepreneurships among the urban poor for waste recycling in Patancheru, AP, India

    Urban sanitation is a growing problem in cities that are growing fast. This is reflected in the Greater Hyderabad Municipal Corporation (GHMC) area where an annual urbanization rate of 4.7% has been reported.The waste generation is estimated at 2.3 mt per day. Biodegradables (52%) are mixed with non-degradables, and decomposing piles of waste is a common site. This has resulted in odour problems ...


    By IWA Publishing

  • Turning waste into power

    Economic, social and environmental factors dictate the necessity to manage waste to a new level. Wastewater plants, landfills, farms and food plants are all the owners of biomass that can be digested to produce biogas and turned into power. Biogas can be burned directly in boilers for heat recovery and used for manufacturing, heating or cooling; this is the simplest method of direct biogas ...


    By Hurll Nu-Way

  • 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

  • Methane production and hydrolysis kinetics in the anaerobic degradation of wastewater screenings

    Anaerobic biodegradability and hydrolysis rates of wastewater screenings were determined using the biochemical methane potential test at 37 °C. The extent and rate of screenings conversion to methane of this complex and particulate substrate were investigated and since two stages of hydrolysis were identified, corresponding to the different types of materials in screenings, a linear and ...


    By IWA Publishing

  • Effect of tertiary combinations of animal dung with agrowastes on the growth and development of earthworm Eisenia fetida during organic waste manageme

    Background Abundant uses of chemical fertilizers have adversely affected the soil. The large production of livestock dung is recorded in India annually. The presence of abundant agrowastes and animal dung causes serious problems to animals as well as to human beings, due to the improper management of these wastes. Due to the presence of different physicochemical parameters, these agrowastes and ...

  • Anaerobic degradation of carbon capture reclaimer MEA waste

    The anaerobic biodegradation of reclaimer MEA (monoethanolamine) waste (MEAw) with easily degradable co-substrates was investigated in a laboratory-scale bioreactor at room temperature during a 160 d experimental run. The reactor that was constructed with three phases to facilitate attached biofilm and suspended biomass retention for degradation of the complex and challenging MEAw performed ...


    By IWA Publishing

  • Case study - Waste water from liquid detergent production

    The Client The Client is a multinational company with more than 250 production sites worldwide. The factory is the only location in Italy of this corporation for the production of cosmetics for personal care (cream or liquid). 80% of the production is for foreign markets. Production lines work 24 hours a day, 6 days per week. The challenge The ...


    By EVALED-Evaporator

  • Case study - Olive mill waste water treatment

    The production of olive oil generates two kind of waste waters: RINSING WATERS: the quantity is subject to change. It can be re-circulated, after the settling to remove the solids, or discharged directly. SLUDGE: vegetation water with additional water, whose quantity is subject to change. In case of traditional oil mills, the hot additional water flows to the inlet of the centrifuge. Part ...


    By EVALED-Evaporator

  • 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

  • Nestlé - Improving product performance along the value chain

    May 6, 2013 By Claus Conzelmann GLOBE-Net, May 6, 2013 - The food production chain uses a large share of the world's limited resources, which is why as the world's ...


    By GLOBE SERIES

  • Medical waste management practices in southern Jordan

    The purpose of this work was to study medical waste practices in southern Jordan. Five major hospitals in that area were used to conduct this study. It involved distributing a modified version of the questionnaire that was adopted by the World Health Organization (WHO). The surveyed hospitals had total number of beds ranging from 72 to 131 beds, while the average amount of medical waste generated ...


    By Inderscience Publishers

  • Impact of microwave treatment on properties of waste activated sludge

    The impact of changing microwave (MW) operational parameters such as temperature, intensity, contact time, and sludge concentration on the physic–chemical and microbiological properties of waste activated sludge (WAS), as well as on biogas production have been investigated. Results obtained indicated that sludge solubility increases with the increase of MW contact time and temperature. At an ...


    By Inderscience Publishers

  • Why business needs to wake up to water waste

    Carbon Trust Chief Executive, Tom Delay, discusses the progress that needs to be made by businesses to address water scarcity With World Water Day focusing minds on the issue of water scarcity, the need for businesses around the world to act fast on easing water shortages becomes more urgent. By 2030 global water demand ...


    By Carbon Trust

  • Kenics static mixer increased production rates and productivity yield when used for adding pigment color

    Adding a pigment color to a dynamic mixer that is also used for non-colored products creates color contamination of the wetted parts and results in increased labor as well as production time and yield losses that directly affect the bottom line. The Kenics KM Series Static Mixer, manufactured and marketed by Chemineer, Inc., provides an alternative solution to adding pigment color that eliminates ...


    By National Oilwell Varco

  • Using wastewater and high-rate algal ponds for nutrient removal and the production of bioenergy and biofuels

    This paper projects a positive outcome for large-scale algal biofuel and energy production when wastewater treatment is the primary goal. Such a view arises partly from a recent change in emphasis in wastewater treatment technology, from simply oxidising the organic matter in the waste (i.e. removing the biological oxygen demand) to removing the nutrients – specifically nitrogen and ...


    By IWA Publishing

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