نتایج جستجو برای: urban waste
تعداد نتایج: 250045 فیلتر نتایج به سال:
Management of municipal solid waste (MSW) has become a significant environmental problem, especially in fast-growing cities. The amount of waste generated increases each year and this makes it difficult to create solutions which due to the increase in waste generation year after year and having to identify a solution that will have minimum impact on the environment. To determine the most sustai...
Polycyclic aromatic hydrocarbons (PAH) are byproducts of combustion and are ubiquitous in the urban environment. They are also present in industrial chemical wastes, such as coal tar, petroleum refinery sludges, waste oils and fuels, and wood-treating residues. Thus, PAHs are chemicals of concern at many waste sites. Risk assessment methods will yield riskbased cleanup levels for PAHs that rang...
This paper is a study of the use of emergy indices for the evaluation of sustainable urban development. The Emergy Exchange Ratio (EER) and Emergy Waste Index (EWI) were introduced into the Emergy Sustainability Index (ESI) to establish a new index that reflects the emergy benefit per unit cost of environmental impact, which includes the market exchange and pollution/waste flow in the measureme...
Nowadays, Most of the cities, especially metropolises of developing countries are engaged with environmental issues like air and water pollution, waste increase and etc., that lead to the environmental destruction. Meanwhile sustainable urban development, provides the balance between development and the environment, and supplies the current generation needs while keep its eyes on the next gener...
India faces major environmental challenges associated with waste generation and inadequate waste collection, transport, treatment and disposal. Current systems in India cannot cope with the volumes of waste generated by an increasing urban population, and this impacts on the environment and public health. The challenges and barriers are significant, but so are the opportunities. This paper repo...
The increasing level of urbanization growth has created many environmental problems which threaten urban life in the most of developing countries. Many different spatial models are used world wide for urban facility site selection. The most common models such as fuzzy logic, regression, artificial neural network, index overlay and taxonomy which each has its advantages and weaknesses. Today urb...
The Manchester urban area evolved rapidly in the early 19th century from a series of small towns to a major industrial conurbation with huge material flows and worldwide trade connections. A combination of the availability of nearby coalfields, canals, and free trade, which encouraged entrepreneurial enterprise, made Manchester into the ‘shock’ city of the industrial revolution. Rapid nucleated...
abstract in current world environmental and mainly urban wastes are originated mostly from massive human habitat areas, and have caused disturbance, uncomfortable landscape, environmental risks and dissatisfaction. saqqez city with a population of 140000 is one of the largest cities in kurdistan province. due to population increase, consumptions and changes in nutritional habits of people, the ...
Solid waste management is one of the existing challenges in urban areas and it is becoming a critical issue due to rapid increase in population. Appropriate solid waste management systems are important for improving the environment and the well-being of residents. In this paper, an Internet of Things(IoT) architecture for real time waste monitoring and collection has been proposed; able to impr...
Introduction: Hospital waste is one of the most dangerous environmental contaminants. Several studies have shown that although hospital waste disposal has improved in comparison to the past, but it is still not satisfactory in many developing countries. In this study we intent to study the quantity and quality of hospital waste in Kerman Province, Iran. Methods: This cross-sectional study was p...
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