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Waste Management Research
Adopted technologies and basis for selection at municipal solid waste landfill facilities constructed in recent years in Japan

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.

7/21/2010 7:05:54 AM
Waste Management Research
Problems of solid waste management on Mount Kilimanjaro: A challenge to tourism

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.

7/21/2010 7:05:54 AM
Waste Management Research
Opportunities and constraints for developing a sustainable E-waste management system at local government level in Australia

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.

7/21/2010 7:05:54 AM
Waste Management Research
Effective utilization of incinerated municipal solid waste incineration ash: zeolitic material synthesis and silica extraction

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.

7/21/2010 7:05:54 AM
Waste Management Research
Cost optimization of a real-time GIS-based management system for hazardous waste transportation

In this paper, the design and cost analysis of a real-time, geographical information system (GIS) based management system for hazardous waste transportation are described. The implementation of such a system can effectively prevent illegal dumping and perform emergency responses during the transportation of hazardous wastes. A case study was conducted in Guangzhou, China to build a small-scale, real-time management system for waste transportation. Two alternatives were evaluated in terms of system capability and cost structure. Alternative I was the building of a complete real-time monitoring and management system in a governing agency; whereas alternative II was the combination of the existing management framework with a commercial Telematics service to achieve the desired level of monitoring and management. The technological framework under consideration included locating transportation vehicles using a global positioning system (GPS), exchanging vehicle location data via the Internet and Intranet, managing hazardous waste transportation using a government management system and responding to emergencies during transportation. Analysis of the cost structure showed that alternative II lowered the capital and operation cost by 38 and 56% in comparison with alternative I. It is demonstrated that efficient management can be achieved through integration of the existing technological components with additional cost benefits being achieved by streamlined software interfacing.

7/21/2010 7:05:54 AM
Waste Management Research
Colour, turbidity and COD removal from old landfill leachate by coagulation-flocculation treatment

The application of different coagulants and flocculants to leachate from an old landfill to determine the optimum conditions for removal of organic matter, colour and turbidity is studied. Ferric chloride, aluminium sulphate, aluminium polychloride (PAX) and polyacrylamide polyelectrolytes were tested. Higher pollutant removals (73% COD, 98% colour and 100% turbidity) were obtained using ferric chloride at pH 5.0—5.5 and for a dosage of 0.6 g Fe l— 1. The volume of sludge generated after centrifugation represents about 4.0—4.6% when ferric chloride or aluminium sulphate is used, and 10% when employing aluminium polychloride. When flocculants were also added, the results obtained were similar to those found when adding only coagulants, although a considerable increase in the settling rate was obtained.

7/21/2010 7:05:54 AM
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....byTotalNews....for PENDPAC

December 27, 2006 TotalNews - Pendpac refuse and collection vehicles reduce workers injuries by 61% in Vancouver, British Columbia. The City of Vancouver and the Vancouver Sun have released statistics to the public in regards to the astounding reduction in worker injuries and sick time off due to Pendpac's automated refuse vehicle aptly named the Alley Gator. "Not only does the Alley Gator greatly reduce job related injuries, the refuse vehicle design also increases collection efficiencies, decreases fuel consumption, and reduces strain on mechanics." stated Steve DeGeorge (President).  Please contact sales@pendpac.com for more information. To read the full article please click here 

September 1, 2006 TotalNews - Pendpac announces the launch of its new customer and partner web portal software. This new content management portal allows customers and partners not only access to information about Pendpac and its products, but allows access to order parts, schedule service, monitor truck build schedules, and communicate better with quality managers. The new content management portal also integrates into Pendpac's production control, inventory, CRM, ERP, and finance platform. "This new system will allow Pendpac complete insight to our organization and help us grow into new product lines while maintaining our commitment to strong customer service and quality control..." stated Steve DeGeorge (President).  Please contact sales@pendpac.com for more information.

August 31, 2006 TotalNews - Pendpac announces the sale of its MABAR Dump Body product line. The MABAR unit was the oldest operating division of Pendpac. It focused on sales, manufacturing, and support for some of the industry' best dump body products. The sale of MABAR to CaseCo, Inc. allows Pendpac to focus on its core refuse product lines and parts sales. Pendpac is expanding its current product lines as well as new refuse vehicles. CaseCo has committed to continuing the excellence and tradition of the MABAR product line and will be expanding its products sets. Please contact sales@pendpac.com for more information.

 August 28, 2006 TotalNews - Pendpac receives expanded customer orders for new "Low Profile" Sprinters. The new Sprinter body allows for the replacement of the "older" style round bodies in the Impac product lines. Several key features to the new design are higher compaction rates, no kick out on the ARM, and quicker curb to curb return cycles while maintaining the height advantages of the round bodies. "The new low profile Sprinter product line is a revolutionary change to a 25 year old product market. Haulers now have the smaller and shorter body styles they have been asking for to better navigate alleys, buildings, and low overhead cables while maintaining maximum packing capabilites." stated Steve DeGeorge (President). Please contact sales@pendpac.com for more information.

May 9, 2007 TotalNews - Pendpac refuse and collection vehicles again plays a part in improving property, environmental, and public safety. Rainbow Disposal of Huntington Beach, Ca. has set up a 2 acre training course for their recently purchased Alley Gator line of waste collection vehicles.  Armando Duarte, the residential supervisor for Rainbow Disposal put it this way, “It’s an educational tool to help with safety and build confidence.” The course is designed not only to familiarize the drivers with the automated arm utilized with the Pendpac Alley Gator units, but; also help them develop speed and precision skills that will reduce injury to the environment and customer property.  Please contact sales@pendpac.com for more information. To read full article click here