Greenhouse gas emission and its potential mitigation process from the waste sector in a large-scale exhibition.

As one of the largest human activities, World Expo is an important source of anthropogenic Greenhouse Gas emission (GHG), and the GHG emission and other environmental impacts of the Expo Shanghai 2010, where around 59,397 tons of waste was generated during 184 Expo running days, were assessed by life cycle assessment (LCA). Two scenarios, i.e.

Environmental impacts of a large-scale incinerator with mixed MSW of high water content from a LCA perspective.

Large-scale incinerators are applied widely as a result of the heavy burden of municipal solid waste (MSW) generated, while strong opposition is arising from the public living nearby. A large-scale working incineration plant of 1500 ton/day was chosen for evaluation using life cycle assessment. It was found that the corresponding human toxicity impacts via soil (HTs), human toxicity impacts via water (HTw) and human toxicity impacts via air (HTa) categories are 0.

A model for estimation of potential generation of waste electrical and electronic equipment in Brazil.

Sales of electrical and electronic equipment are increasing dramatically in developing countries. Usually, there are no reliable data about quantities of the waste generated. A new law for solid waste management was enacted in Brazil in 2010, and the infrastructure to treat this waste must be planned, considering the volumes of the different types of electrical and electronic equipment generated.

Reaching cost-saving effects by a mixed collection of light packagings together with residual household waste?

To enforce material recycling of household waste at high levels, separate collection schemes often under a producer's responsibility regime were implemented in Germany since the 1970s and 1990s, respectively. The separate collection of recyclables (Sorting-Transportation-Sorting-Recovery' system) is assumed, guaranteeing higher purities of the collected material streams but also causing higher costs for logistics and the processing of the waste fractions. Several authors argue that since the rapid development of automatic sorting systems in recent years, a mixed collection of recyclables and residual household waste with a downstream sorting strategy (Transportation-Sorting-Recovery system) is cheaper than the currents system while keeping the product quality constant.