OBJECTIVE To evaluate the current practices of segregation approaches, storage arrangements, collection and disposal systems in the teaching hospitals of Karachi. METHODS A cross-sectional survey was conducted in eight teaching hospitals of Karachi, using convenient sampling technique. The instrument of research was a self administered questionnaire, with four sections, relating to the genera...

A solid waste management crisis exists in many parts of the US as a result of the inability to site new landfills to replace the consumed capacity of existing landfills. Municipal solid waste (MSW) landfills can, and usually do, have a significant adverse impact on the individuals who own property in, reside in, or otherwise use, areas near the landfill. This leads those who stand to be adverse...

Municipal solid waste (MSW) landfills are among the nation’s largest emitters of methane, a key greenhouse gas, and there is considerable interest in quantifying the surficial methane emissions from landfills. There are limitations in obtaining accurate emissions data by field measurements, and in characterizing an entire landfill with only a few such emissions measurements. This paper proposes...

Waste management became focus of attention of many researchers and scientists in the last half century due to its vital importance. Waste management covered waste source reduction in general, by recycling, reusing, composting, incineration with or without energy recovery, fuel production and land filling. A common approach of waste management models were for specific problems with a limited sco...

Greenhouse gas (GHG) emissions per person from urban waste management activities are greater in sub-Saharan African countries than in other developing countries, and increasing as the population becomes more urbanised (Couth and Trois, 2010). Waste from urban areas across Africa is essentially dumped on the ground with little or no control over the relative liquid and gaseous emissions. The Cle...

Shortage of land for waste disposal is a serious and growing potential problem in most large urban regions. However, no practical studies have been reported in the literature that incorporate the process of consumption and depletion of landfill space in urban regions over time and analyse its implications for the management of waste. An evaluation of existing models of waste management indicate...

The management of medical waste is of great importance due to its potential environmental hazards and public health risks. In the past medical waste was often mixed with municipal solid waste and disposed of in residential waste landfills or improper treatment facilities (e.g. inadequately controlled incinerators) in Korea. In recent years, many efforts have been made by environmental regulator...

The most common means for disposing of municipal solid waste is burial in a sanitary landfill. However, many landfill are underestimate the total cost of landfill disposal be considering only land and operating costs, ignoring external physical and social costs associated with landfills. This paper pro0oses and approach be estimating (in monetary terms) the external costs arising from the devel...

Waste management in the building industry in Hong Kong has become an important environmental issue. Particularly, an increasing amount of construction and demolition (C&D) waste is being disposed at landfill sites. In order to reduce waste generation and encourage reuse and recycling, the Hong Kong Government has implemented the Construction Waste Disposal Charging Scheme (CWDCS) to levy charge...