News

Waste Management Research
Life-cycle assessment (EASEWASTE) of two municipal solid waste incineration technologies in China

The environmental profile of two municipal solid waste incineration (MSWI) technologies with semi-dry flue gas cleaning, namely grated firing incinerators (GFI) and fluidised bed incinerators (FBI) that are commonly used in China were evaluated and compared by life-cycle assessment (LCA) using the EASEWASTE model. All emissions of key pollutants as well as energy, resource and material inputs and outputs associated with the two MSWI technologies were determined and the corresponding environmental impact potentials were modelled. Incineration of MSW with a lower heating value (LHV) around 4.5 MJ kg^—1 demands that auxiliary fuel is used, and both GFI and FBI caused environmental loads by contributing with environmental impact potentials in most categories except for some saving in global warming (GW100) and hazardous waste (HW). Coal combustion in FBI is a main contributor to the environmental impact potentials and thus should always be limited to a minimum. Auxiliary fuels can be avoided when the LHV of MSW is higher than 5—6 MJ kg^{— 1}. For all scenarios, GFI saves more global warming potentials than FBI due to its higher net power generation from combustion of MSW itself. Leachate from the bunker could be sprayed into the furnace for evaporation under high temperature, as an alternative to waste-water treatment, without major changes in the environmental profile of the incinerator. The presented evaluations may contribute to a more balanced environmental assessment of the two incineration technologies with respect to incineration of MSW with low heating values as often found in Asia and China.

5/27/2010 1:52:55 AM

Waste Management Research
Hybrid life-cycle assessment (LCA) of CO2 emission with management alternatives for household food wastes in Japan

In this study, we conducted a hybrid life-cycle assessment (LCA) to evaluate reductions in CO₂ emissions by food waste biogasification of household food wastes in Japan. Two alternative scenarios were examined. In one alternative (Ref), all combustible municipal solid wastes (MSWs), including food waste, are incinerated. In the other (Bio), food waste is biogasified, while the other combustible wastes are incinerated. An inventory analysis of energy and material flow in the MSW management system was conducted. Subsequently, the inventory data were summarized into an input—output format, and a make-use input—output framework was applied. Furthermore, a production equilibrium model was established using a matrix representing the input— output relationship of energy and materials among the processes and sectors. Several levels of power generation efficiency from incineration were applied as a sensitivity analysis. The hybrid LCA indicated that the difference between the Bio and Ref scenarios, from the perspective of CO₂ emissions, is relatively small. However, a 13—14% reduction of CO₂ emissions of the total waste management sector in Japan may be achieved by improving the efficiency of power generation from incineration from 10% to 25%.

5/27/2010 1:52:55 AM

Waste Management Research
Closing the loop on organic waste management: biochar for agricultural land application and climate change mitigation

5/27/2010 1:52:55 AM

Waste Management Research
Resource recovery from end-of-life tyres in Greece: a field survey, state-of-art and trends

Lack of consistent and available information for the entire tyre industry has often hindered adequate understanding of current and future issues that need to be addressed for improving the sustainable end-of-life tyre management. The aim of this paper is to review related best available technologies and techniques for Greece, ranging from simple mechanical processing, up to complex multistep, mechanochemical and/or thermal treatment. End-of-life tyre management guidelines in the form of a manual for supporting future entrepreneurs in this field are also discussed. Extensive data mining, classification and inventorying was performed, both in the field via questionnaires and in the literature, for the purpose of accurately determining Hellenic conditions, in order to pinpoint encountered problems, propose interventions and determine new entrepreneurship opportunities.

5/27/2010 1:52:55 AM

Waste Management Research
Cities as sustainable development drivers

5/26/2010 10:04:11 AM

Waste Management Research
Possible utilization of acrylic paint and copper phthalocyanine pigment sludge for vermiculture

Sludge generated from water treatment plants in two different paint and pigment manufacturing industries, one manufacturing CPC Green (copper phthalocyanine green) and the other acrylic (pure and styrene) washable distempers, synthetic enamels, fillers and putties, were used for culturing earthworms (Eisenia foetida Savigny). The possibility of getting a quality vermicompost was also explored. The sludges were used pure and mixed with month-old cow dung at 1:1, 1:2, 1:3, 2:1 and 3:1 ratios (sludge:cow dung). In pure sludges and in the 3:1 ratio, earthworms did not survive. Earthworms had very low survival in CPC Green sludge and its mixtures while acrylic paint sludge was very efficient in supporting worm growth and worm castings were generated quickly. Both sludges were alkaline, non-saline, but had appreciable Ca, Al, Pb, Zn, and Mn. CPC Green had high Cu (12,900 mg kg^—1) and acrylic paint sludge had high total Cr (155 mg kg^—1). High Ca and Al in both came from water treatment chemicals (lime and alum), while CPC Green itself is a copper-based pigment. The sludges were suitable for land application with regard to their metal contents, except for Cu in CPC Green. CPC Green did not support proper growth of plants (green gram, Vigna radiata (L). R. Wilcz.), while acrylic paint sludge supported growth in pure form and mixtures with soil.

4/22/2010 1:29:15 AM

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....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