A space toilet is a toilet that can be used in a low gravity environment. In the absence of gravity the collection and retention of liquid and solid waste is directed by use of air flow instead of water. Generally, the human waste is separated and solid wastes are compressed and stored on-board, and then removed after landing. Waste water is vented to space. The air is filtered to remove odor a...

The population growth, changing consumption patterns, and rapid urbanization contribute significantly to the growing volumes of solid waste that are generated in urban settings. As the rate of urbanization increases, demand on the services of solid waste management increases. The rapid urban growth in Langkawi Island, Malaysia, combined with the increasing rates of solid waste production has pr...

IN T R O D U C T IO N Reduced to its simplest terms, solid waste collection and disposal consists of the acceptance of the solid waste from processes of human life, the transportation of such material to disposal sites, and the process­ ing and disposal of the material so that nuisances are not created. The entire process must be carried out in such a manner that the public health of the commun...

Solid waste collection, transfer and transportation (SWCTT) is a fundamental component of solid waste management systems that contributes to both the costs and environmental emissions associated with managing solid waste. The objective of this study is to project the fuel consumption and fuel costs of SWCTT in Tehran from 2018 to 2032. A further objective is to evaluate the air pollutant emissi...

This is an extremely interesting paper since it provides excellent statistical data in the operation of an incinerator. Although the plant is relatively small, many of the values can be extrapolated to larger size plants. Some specific comments are as follows: 1. Operation of the Kiel District Heating Sta­ tion is typical of European practice. The city is the sponsor for waste collection, trans...

Composition and quantity per person of Municipal Solid Waste (MSW) were analyzed in six municipalities with different collection systems. Samples of residual waste were sorted, classified and weighed in 21 categories. Collection data of total waste flow, including sourcesorted recycling materials, in the same area was analyzed. Multivariate data analyses were applied. The main questions to be a...

The additional costs of solid waste recycling programs can be burdensome in large urban areas. Most urban re­ cycling programs have utilized an approach developed for suburban areas with a separate collection and processing system for recyclables operating in parallel with the exist­ ing Municipal Solid Waste (MSW) collection, processing and transfer system. Many programs even have a third para...