solid waste engineering Articles

  • Geotechnical Properties of Municipal Solid Waste

    A geotechnical testing program was conducted to evaluate the engineering properties of aged solid waste samples retrieved from a landfill that began accepting waste as early as 1940. The conducted tests included water content, specific gravity, Atterberg limits, grain-size distribution, compaction, permeability, consolidation, triaxial, and direct shear. Maximum dry unit weight achieved using the ...


    By ASTM International

  • Recycling Zinc From Municipal Solid Waste

    Results from experiments carried out in laboratory and on a 0.5 MW test facility are presented. It was shown that Zn can be substantially extracted from waste using different techniques. In the pilot experiments the Zn behavior was investigated with radioactive tracers. It was shown that by changing the operation conditions from combustion to gasification the amount of evaporated Zn can be ...


    By Paul Scherrer Institut (PSI)

  • Solid Waste District Pilots Dry Fermentation Digester

    Special events, restaurants and other commercial businesses in the Monterey region of California have found a way to close the compostable waste loop and produce usable electricity at the same time. The electricity is produced via dry fermentation anaerobic digestion (AD) units that came online this spring at the Monterey Regional Waste Management District (MRWMD) in Marina. The pilot AD ...


    By BioCycle Magazine

  • Drivers of solid waste minimisation in Finnish metal engineering SMEs: the role of Environmental Management Systems

    The paper reports on a survey in Finnish small- and medium-sized metal engineering enterprises (SMEs) with certified Environmental Management System (EMS). Waste awareness has increased after certifying EMS and the treatment of solid waste has improved; source separation of solid waste facilitated the recovery of recyclables and their diversion from landfill. EMS has raised knowledge levels, in ...


    By Inderscience Publishers

  • Producing biogas from solid wastes – Case Study

    Santa Cruz Wastewater Treatment Facility, located in Santa Cruz, California, generates the majority of its own electric power by using internal combustion engines that burn a mixture of methane gas produced by the sewage digestion process and purchased natural gas. Combined, they producing 7.4 million kWh of electric power per year. Producing abundant, healthy amounts of biogas each day in their ...


    By Sierra Instruments, Inc.

  • Slope failures in municipal solid waste dumps and landfills: a review

    Between 1977 and 2005 six large-scale failures of municipal solid waste dumps and landfills have been recorded in the technical literature. The volumes of waste mobilized in the failures varied from 10—12 000 m3 in a failure that killed nearly 300 people to 1.5 million m3 in a failure that caused no deaths or injuries. Of the six failures, four occurred in dumps that, as far as is known, had not ...


    By SAGE Publications Ltd

  • EPA Proposes Revisions to RCRA Definition of Solid Waste

    On June 30, 2011, U.S. Environmental Protection Agency (EPA) Administrator Lisa Jackson signed a proposed rule seeking to narrow certain recycling exemptions under the Resource Conservation and Recovery Act's (RCRA) "Definition of Solid Waste" (DSW) provisions. The rule should be published in the Federal Register within the next two weeks. A pre-publication copy of the rule and related ...


    By Bergeson & Campbell, P.C.

  • Management of organic content in municipal solid waste - a case study of Lahore

    Poor solid waste management (SWM) is one of the leading obstacles for absolute clean and healthy environment. Growing economy of Lahore has rapidly increased growth rate which in turn has flared solid waste generation. Municipal solid waste is contributing heavily to air, water and land pollution and a major portion of municipal waste is organic. Generally considered unfruitful, this organic ...


    By Inderscience Publishers

  • Optimisation of solid waste collection routes using Premium Solver Platform

    This study illustrates the application of Premium Solver Platform software to optimise tours for the collection of municipal solid waste. Data required for optimisation was obtained from the municipal solid waste management authority, field studies and digitised map of a study area. Thereafter the optimisation problem was formulated as a travelling salesman problem (TSP) on Microsoft Excel ...


    By Inderscience Publishers

  • Residential SSO To High Solids Anaerobic Digestion

    Source separated organics, including kitchen and garden waste, are processed in a dry AD plant. Resulting biomethane is injected into an adjacent natural gas pipeline. Winterthur, a city in the canton of Zürich in northern Switzerland, has the country’s sixth largest population, estimated at more than 100,000. In 2011, the City of Winterthur launched a 2050 energy policy to ...


    By BioCycle Magazine

  • Groundwater Monitoring Water Solids Removal

    Industrial Waste Water Treatment Success Stories Groundwater Monitoring Colloidal Solids Removal Effective Ground Water Solids Removal The ground ...


    By Integrated Engineers Inc.

  • Groundwater Monitoring Colloidal Solids Removal

    Industrial Waste Water Treatment Success Stories Groundwater Monitoring Colloidal Solids Removal Effective Ground Water Solids Removal The ground ...


    By Integrated Engineers Inc.

  • Principles of HDD Solids Control & Buyers Guide

    Relative to the use of drilling fluids within the oil & gas industry, the use of drilling fluids within the horizontal directional drilling (“HDD”) industry, is new.   As the use of HDD technology did not become mainstream until the 1980’s, it took another decade before drillers started to consider the use of basic drilling fluids.  Even today, ...


    By Elgin Separation Solutions

  • 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

  • Turning wood chips and sawdust into a valuable solid fuel

    RUF briquetting units are the economical solution for the processing of wood chips and sawdust. Where timber is planed, turned and sanded, manufacturers end up with large quantities of wood chips and sawdust. By briquetting this material, you can recover a valuable solid fuel. Where large quantities are produced, the single briquette pressing system developed by RUF GmbH is the most economical ...

  • Municipal solid waste: alternative source of energy to the cement kilns in the state of Madhya Pradesh, India

    Rapid urbanisation has resulted in large–scale municipal solid waste (MSW) generation in India. Scientific and environment friendly disposal of MSW is a challenge for the municipal local bodies. A survey has been conducted regarding municipal solid waste generation from 342 local bodies in the State of Madhya Pradesh. Total generation of the MSW in the State is estimated around 4,500 MT/day ...


    By Inderscience Publishers

  • High solids anaerobic digestion of pfmsw using novel anaerobic reactors

    In the last decade efforts have been made to control anaerobic digestion of the putrescible fraction of municipal solid waste (PFMSW) in engineered reactors, than to allow for 'free' digestion in landfill sites. Such a process achieves enhanced treatment efficiency in significantly reduced retention times (from years down to days) and completes energy recovery from waste, without biogas emissions ...


    By ORBIT e.V.

  • Using a direct method to characterize and measure flows of municipal solid waste in the United States

    ABSTRACTAlthough there are a myriad of sources of municipal solid waste (MSW) data in the United States, much of thesedata are not transparent and are also extremely difficult to find. In addition, the two major methods of quantifyingnational MSW flows—the BioCycle State of Garbage in America and the U.S. Environmental Protection Agency (EPA)/Franklin Associates’ MSW “Facts and Figures” ...

  • Waste Disposal

    Introduction The final step in the waste management process is waste disposal, the permanent isolation of waste. Some wastes can be managed and disposed safely with existing facilities and proven methods. Other Department of Energy (DOE) wastes require more complex disposal facilities. DOE has conducted extensive research into alternative waste disposal methods and has concluded that deep ...

  • 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

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