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The role of informal sector for sustainable waste management
Agamuthu, P.
Planning of municipal solid waste management under dual uncertainties
Xiaodong Zhang, , Huang, G. H., Xianghui Nie, , Yumin Chen, , Qianguo Lin, Municipal solid waste management is a complex and multidisciplinary problem, involving a number of impact factors associated with various uncertainties. In this study, a hybrid interval-parameter possibilistic programming (IPP) approach was developed and applied for planning municipal solid waste management under dual uncertainties. The IPP improves upon the existing management approaches by allowing possibility distributions of the lower and upper bounds of some interval parameters in the objective function and interval information in the modelling coefficients to be effectively incorporated within its optimization. By introducing the concept of possibilistic interval numbers, the dual uncertainties can be communicated into the optimization process and the resulting solutions, such that the generated decision schemes can effectively reflect the highly complex system features under uncertainty. The results of the case study indicate that useful information can be obtained for providing feasible decision schemes for waste flow allocation. Different decision schemes can be generated by adjusting waste flow allocation patterns within the solution intervals. Lower decision variable values should be used to obtain lower system cost of waste treatment and disposal under advantageous conditions, and higher decision variable values should be used under demanding conditions (worst case conditions). A strong desire to acquire the lower system cost will lead to the decreased probability of meeting the treatment and disposal requirements (i.e. the increased risk of unforeseen conditions); willingness to accept the upper limit of the system cost will guarantee that waste treatment and disposal requirements are met.
Adopted technologies and basis for selection at municipal solid waste landfill facilities constructed in recent years in Japan
Asakura, H., Matsuto, T., Inoue, Y. In Japan, as the construction of new landfill facilities has become extremely difficult and the number of sites procured for landfill construction has decreased due to the ‘not in my back yard’ (NIMBY) syndrome, it has been assumed that the adoption of new technologies has increased. As the performance of new technologies exceeds that of conventional technologies, it is also assumed that residents would prefer the use of these new technologies and therefore any construction plans should be devised to ensure their use to ensure residents’ satisfaction. In the present study, the technologies adopted for municipal solid waste landfill facilities constructed in recent years (2000 to 2004) in Japan and the bases for their adoption were investigated by means of a questionnaire survey. One of the main bases for the adoption of new technologies was the request by residents for new technology for roofing, rather than the other for new technologies for barrier systems, leachate treatment, and monitoring. In addition, it is possible that the municipalities did not recognize the difference between conventional and new technologies as defined in this study. The roof-type landfill that isolates waste from the surrounding environment was one of the requirements for the construction of new landfill facilities identified in the present investigation, and in this regard waste isolation should be required in all circumstances.
Problems of solid waste management on Mount Kilimanjaro: A challenge to tourism
Kaseva, M. E., Moirana, J. L. We report on the findings of a study on the problems of solid waste management (SWM) on Mountain Kilimanjaro (MK) which is located within Kilimanjaro National Park (KINAPA) in Northern Tanzania. The study was prompted by the fact that flourishing tourism on the mountain over the years has resulted in an increase in the tonnage of solid waste (SW) generated, posing serious challenges in its collection and disposal. The methodology employed in this study included physical observations and questionnaire surveys, as well as waste sorting and weighing to quantify and characterize waste loads collected from each tourist route station covered in this study. On the basis of the established SW generation rate (0.6 kg ca—1 day—1) a total amount of SW generated was estimated to range from about 87 tonnes (in 2003) to 125 tonnes (in 2006). An improvement in SW collection from 64% in 2003 to 94% in 2006 was also noted. This improvement can be attributed to the trash-in-trash-out (TITO) system of SW collection which is currently practiced by the management of KINAPA for SWM on MK. The study also highlights potential environmental pollution including air pollution from open burning and pit disposal of SW. Based on average percentage values of waste components and the estimated quantity of waste generated, it was established that the total waste quantum contains about 34% of recyclables. The study recommends that resource recovery and conservation measures through waste recycling and re-use be instituted as one of the options for sustainable SWM on MK.
Opportunities and constraints for developing a sustainable E-waste management system at local government level in Australia
Davis, G., Herat, S. E-waste refers to both electronic and electrical waste materials; namely any items which rely on an electric current or electromagnetic fields in order to operate, and contain a hard-drive or significant electronic components and/or a printed circuit board. E-waste is outstripping the general growth of the municipal waste stream. Increasingly, smaller and cheaper electronic items are being disposed of in municipal waste systems and this, coupled with an increase in the number of, and turnover of manufacturers and suppliers, may see local councils assuming a key role in future e-waste management. A survey of local councils across Australia was undertaken to determine the current level of understanding and action on e-waste, and to solicit key responses regarding the identification of areas where improvements could be made. The survey achieved an overall response rate of 35%. Survey results identified key barriers experienced by councils regarding the collection and treatment of e-wastes, such as access to reprocessing facilities and the limited or complete unawareness by the public of the issues. With regards to who should pay for e-waste disposal at end-of-life, consumers and producers were most commonly cited, depending on the state with the preferred funding mechanisms being ‘advanced recycling fee’ and Expanded Producer Responsibility. Overwhelmingly, 88% of respondents believed that federal legislation was required to manage e-waste. Overall, the results did not indicate differences in views between states for most questions.
Effective utilization of incinerated municipal solid waste incineration ash: zeolitic material synthesis and silica extraction
Bui Hoang Bac, , Yungoo Song, , Yonghee Moon, , Myung Hun Kim, , Il Mo Kang, In this study the effective utilization of two types of municipal solid waste incinerator (MSWI) ashes, namely air-cooled ash (ACS) and water-cooled ash (WCS) samples obtained from a municipal solid waste incineration plant, was examined by applying zeolitic material synthesis and silica extraction. The influence of the experimental conditions including the ratio of sample : NaOH solution, the reaction temperature and time, and the concentration of NaOH solution were investigated. The results for the 25 experimental trials can be summarized as: (1) the formation of tobermorite and/or pectolite-1A as a major component in most conditions; (2) the synthesis of hydroxycancrinite as a major phase at 200 °C; (3) a dramatic increase in the extracted SiO2 yield at 1 : 30 value of sample : NaOH ratio and 200 °C, even at short reaction times; and (4) relatively high SiO2 yields for WCS ashes rather than ACS ashes. An increase in the reaction time improved the quantity of synthesized zeolitic materials. The reaction temperature determined the type of zeolite. An increase in the NaOH concentration can be an essential factor to improve zeolitic material synthesis, but it significantly reduced the yield of SiO2 extraction. In conclusion, suitable conditions for obtaining both SiO2 extraction and synthesized zeolites from the ashes of the incinerated solid waste materials should be: 200 °C reaction temperature; a 1 : 30 (g : mL) value for the sample : NaOH ratio; 2 mol L—1 NaOH concentration; and a reaction time of more than 24 h.
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The role of informal sector for sustainable waste management
Agamuthu, P.
Planning of municipal solid waste management under dual uncertainties
Xiaodong Zhang, , Huang, G. H., Xianghui Nie, , Yumin Chen, , Qianguo Lin, Municipal solid waste management is a complex and multidisciplinary problem, involving a number of impact factors associated with various uncertainties. In this study, a hybrid interval-parameter possibilistic programming (IPP) approach was developed and applied for planning municipal solid waste management under dual uncertainties. The IPP improves upon the existing management approaches by allowing possibility distributions of the lower and upper bounds of some interval parameters in the objective function and interval information in the modelling coefficients to be effectively incorporated within its optimization. By introducing the concept of possibilistic interval numbers, the dual uncertainties can be communicated into the optimization process and the resulting solutions, such that the generated decision schemes can effectively reflect the highly complex system features under uncertainty. The results of the case study indicate that useful information can be obtained for providing feasible decision schemes for waste flow allocation. Different decision schemes can be generated by adjusting waste flow allocation patterns within the solution intervals. Lower decision variable values should be used to obtain lower system cost of waste treatment and disposal under advantageous conditions, and higher decision variable values should be used under demanding conditions (worst case conditions). A strong desire to acquire the lower system cost will lead to the decreased probability of meeting the treatment and disposal requirements (i.e. the increased risk of unforeseen conditions); willingness to accept the upper limit of the system cost will guarantee that waste treatment and disposal requirements are met.
Adopted technologies and basis for selection at municipal solid waste landfill facilities constructed in recent years in Japan
Asakura, H., Matsuto, T., Inoue, Y. In Japan, as the construction of new landfill facilities has become extremely difficult and the number of sites procured for landfill construction has decreased due to the ‘not in my back yard’ (NIMBY) syndrome, it has been assumed that the adoption of new technologies has increased. As the performance of new technologies exceeds that of conventional technologies, it is also assumed that residents would prefer the use of these new technologies and therefore any construction plans should be devised to ensure their use to ensure residents’ satisfaction. In the present study, the technologies adopted for municipal solid waste landfill facilities constructed in recent years (2000 to 2004) in Japan and the bases for their adoption were investigated by means of a questionnaire survey. One of the main bases for the adoption of new technologies was the request by residents for new technology for roofing, rather than the other for new technologies for barrier systems, leachate treatment, and monitoring. In addition, it is possible that the municipalities did not recognize the difference between conventional and new technologies as defined in this study. The roof-type landfill that isolates waste from the surrounding environment was one of the requirements for the construction of new landfill facilities identified in the present investigation, and in this regard waste isolation should be required in all circumstances.
Problems of solid waste management on Mount Kilimanjaro: A challenge to tourism
Kaseva, M. E., Moirana, J. L. We report on the findings of a study on the problems of solid waste management (SWM) on Mountain Kilimanjaro (MK) which is located within Kilimanjaro National Park (KINAPA) in Northern Tanzania. The study was prompted by the fact that flourishing tourism on the mountain over the years has resulted in an increase in the tonnage of solid waste (SW) generated, posing serious challenges in its collection and disposal. The methodology employed in this study included physical observations and questionnaire surveys, as well as waste sorting and weighing to quantify and characterize waste loads collected from each tourist route station covered in this study. On the basis of the established SW generation rate (0.6 kg ca—1 day—1) a total amount of SW generated was estimated to range from about 87 tonnes (in 2003) to 125 tonnes (in 2006). An improvement in SW collection from 64% in 2003 to 94% in 2006 was also noted. This improvement can be attributed to the trash-in-trash-out (TITO) system of SW collection which is currently practiced by the management of KINAPA for SWM on MK. The study also highlights potential environmental pollution including air pollution from open burning and pit disposal of SW. Based on average percentage values of waste components and the estimated quantity of waste generated, it was established that the total waste quantum contains about 34% of recyclables. The study recommends that resource recovery and conservation measures through waste recycling and re-use be instituted as one of the options for sustainable SWM on MK.
Opportunities and constraints for developing a sustainable E-waste management system at local government level in Australia
Davis, G., Herat, S. E-waste refers to both electronic and electrical waste materials; namely any items which rely on an electric current or electromagnetic fields in order to operate, and contain a hard-drive or significant electronic components and/or a printed circuit board. E-waste is outstripping the general growth of the municipal waste stream. Increasingly, smaller and cheaper electronic items are being disposed of in municipal waste systems and this, coupled with an increase in the number of, and turnover of manufacturers and suppliers, may see local councils assuming a key role in future e-waste management. A survey of local councils across Australia was undertaken to determine the current level of understanding and action on e-waste, and to solicit key responses regarding the identification of areas where improvements could be made. The survey achieved an overall response rate of 35%. Survey results identified key barriers experienced by councils regarding the collection and treatment of e-wastes, such as access to reprocessing facilities and the limited or complete unawareness by the public of the issues. With regards to who should pay for e-waste disposal at end-of-life, consumers and producers were most commonly cited, depending on the state with the preferred funding mechanisms being ‘advanced recycling fee’ and Expanded Producer Responsibility. Overwhelmingly, 88% of respondents believed that federal legislation was required to manage e-waste. Overall, the results did not indicate differences in views between states for most questions.
Effective utilization of incinerated municipal solid waste incineration ash: zeolitic material synthesis and silica extraction
Bui Hoang Bac, , Yungoo Song, , Yonghee Moon, , Myung Hun Kim, , Il Mo Kang, In this study the effective utilization of two types of municipal solid waste incinerator (MSWI) ashes, namely air-cooled ash (ACS) and water-cooled ash (WCS) samples obtained from a municipal solid waste incineration plant, was examined by applying zeolitic material synthesis and silica extraction. The influence of the experimental conditions including the ratio of sample : NaOH solution, the reaction temperature and time, and the concentration of NaOH solution were investigated. The results for the 25 experimental trials can be summarized as: (1) the formation of tobermorite and/or pectolite-1A as a major component in most conditions; (2) the synthesis of hydroxycancrinite as a major phase at 200 °C; (3) a dramatic increase in the extracted SiO2 yield at 1 : 30 value of sample : NaOH ratio and 200 °C, even at short reaction times; and (4) relatively high SiO2 yields for WCS ashes rather than ACS ashes. An increase in the reaction time improved the quantity of synthesized zeolitic materials. The reaction temperature determined the type of zeolite. An increase in the NaOH concentration can be an essential factor to improve zeolitic material synthesis, but it significantly reduced the yield of SiO2 extraction. In conclusion, suitable conditions for obtaining both SiO2 extraction and synthesized zeolites from the ashes of the incinerated solid waste materials should be: 200 °C reaction temperature; a 1 : 30 (g : mL) value for the sample : NaOH ratio; 2 mol L—1 NaOH concentration; and a reaction time of more than 24 h.
Sites:
Company: Gilmour & Company provides lime and lime slurry products and services for industrial and municipal waste treatment, sludge and soil stabilization, waste remediation, pH adjustment and other applications.Advanced BioTech: Commercial and Industrial algae control, odor control, bioremediation, biofertilizers, crop and plant enhancements, wastewater, septic treatment, pet odors, algae control products, odor neutralizers, bioremediation products, petroleum oil spill cleanup - industrial, agricultural, www.adbio.com/in...
American Biosystems: Mambo Open Source - the dynamic portal engine and content management system ,
American Ecology Corporation: US Ecology, a subsidiary of American Ecology Corporation (Nasdaq: ECOL) has provided radioactive waste services since 1952, and hazardous waste services since 1968.
Atlas: Waste management and recycling services company based in Ireland.
AVR: Provides services in all areas of waste management for industry, government, and consumers.
Capital Environmental Resource, Inc.: Provides solid waste collection, transfer, disposal and recycling services to commercial, industrial and residential customers in secondary markets in Canada. (Nasdaq: CERI).
CGEA Group: Pour la gestion de lenvironnement, propreté, dépollution des sols et lénergie renouvelable, Veolia propreté assure la collecte, traitement et valorisation déchets : assainissement, compostage, nettoyage industriel, recyclage déchets dangereux.
Chesapeake Waste Solutions, Inc.: Chesapeake Waste Solutions, Inc. is a full service company established and structured to provide distinctive and exceptional waste management services to its industrial clients.
Cleanaway: Veolia Environmental Services offers a range of waste management services from refuse collection to material handling equipment, including waste disposal, pest control, graffiti removal, street cleaning, tank cleaning and water jetting.
Ekokem Group: Provides services in the field of hazardous waste treatment and environmental management.
Environmental Expert: Features articles and information on events, software, technological solutions and web resources for waste management.
Environmental Support Solutions, Inc.: EHS Software: ESS is the leading provider of Operational Risk Management software and services that focus on Environmental, Health and Safety (EHS) regulatory reporting and Crisis Management activities.
Freewaste.com: Free web pages,Free business listing, Free classified ads and Industry links, Submit your listings for free !
Gary Steacy Dismantling Ltd: Gary Steacy Dismantling is a permanent facility for the destruction of polychlorinated biphenyls (PCB) contaminated transformers, light ballast and electrical equipment. We recycle the scrap steel, silicon steel, aluminum and copper
GreenWare Environmental Systems Inc.: Environmental management system, performance monitoring and reporting software, including greenhouse gas emissions, and auditing software.
Hazardous Elimination Corp.: Official Website of the enviromental company Hazardous Elimination Corp. , specialist of Lead and Asbestos Abatement
Hazco Environmental Ltd.: FW MX DW MX HTML
Keppel Seghers Technology, Inc: Providing technology solutions for a cleaner future ranging from water treatment, waterreuse, waste treatment, waste to energy and sludge drying to paint and plastic removal
Mericart: Mericart - recupero e riciclo carta, alluminio, pneumatici, legno e ferro - Cinisello Balsamo (MI)
Midwest Environmental Services: Midwest Environmental Services, Inc. provides a wide range of waste management services --including the transportation and disposal of both hazardous and non hazardous wastes, the management and disposal of the waste, emergency response, environmental assessments and site remediation.
Morton Plumbing: Sewerage waste water treatment systems and cctv colour sewer drain inspection camera. Lists services and contacts.
Northeast Environmental: Fuel storage tanks removal and installation services, toxic black mold removal and remediation in the Westchester County, New York region. Emergency response services.
OREX Technologies International: Offers a variety of materials and treatment and disposal systems to the nuclear industry . (Nasdaq: OREX).
Perma-Fix Environmental Services, Inc.: Network of waste treatment, storage and disposal facilities providing hazardous and non-hazardous waste and wastewater treatment, liquid and solid residue stabilization, and transportation services.
Pollution Control Industries: Hazardous and non-hazardous industrial waste management services specializing in fuel blending, stabilization and technical field services.
Reco Biotechnology: Reco Biotechnology is regarded as the comprehensive provider for non hazardous waste management services.
Rent A Dumpster: RentADumpster - the One Dot Shop for Waste Services, Supplies, and Equipment
Resource Recycling, LLC: Resource Recycling, LLC ia a secondary METAL processor that designs Metal Recovery systems for wate-to-energy facilities
Rhodia Eco Services: Offers services and products for hazardous waste and soil treatment, water treatment, sulfuric acid production and regeneration.
Sani-Tech Environment, LLC: Providing industry with a full range of environmental services adapted to meet its clients' modes of production and specific requirements, including 24 hour spill response.
Sita: Offers waste management and environmental services, including collection, recycling, landfill operations, and industrial waste disposal.
Tarksol Environmental Solvents: Aqueous, semi-aqueous, and solvents for all types of industrial, institutional, and household applications. Based on a new patented biomass solvent derived from nature. All the products are produced from a natural alcohol and soy bean derivitive.
The Sunswept Group: The Sunswept Group of companies cover oil extraction, waste disposal and site maintenance.
Tritech International (TTI): car financing loan used,Auto loan and refinance for used car or new car also bad credit auto loan
United Recycling Industries: United Recycling Industries- environmentally safe waste management of computer electronic components and recycling of industrial, commercial, consumer, and military electronic material and scrap.
Viridor Waste Management Ltd: Homepage of Viridor Waste Management
Waste Management, Inc.: Waste Management is the #1 Residential and Commercial Trash Service Provider
WasteSite: Offers evaluations of site-specific disposal and recycling facility options for hazardous and non-hazardous waste management.
WS Atkins: Provides services in the management and treatment of municipal and industrial liquid and solid wastes, clinical waste and nuclear waste
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This directory is based on the Open Directory and may have been modified