نتایج جستجو برای: urban waste
تعداد نتایج: 250045 فیلتر نتایج به سال:
Objective: To assess the biomedical waste management system in two major tertiary care hospitals and to look for the alternative measures which are costeffective and reliable. Study design: A comparative study Place and duration: The study was conducted at two tertiary care teaching hospitals of Rawalpindi and Islamabad city from 27 th April 2014 to 16 th May 2014. Methodology: The data was col...
Of the still unresolved issues regarding medical waste management, one of the most critical is which technologies and controls are most appropriate for treatment. 1 Clearly, the answer depends on the particular circumstances of the medical waste generator and the host community for the treatment facility. Factors such as the nature (quantity and types) of the medical waste, the availability of ...
A waste-to-energy firm that recycles organic waste with energy recovery performs two environmentally beneficial functions: it diverts waste from landfill, and it produces renewable energy. At the same time, the waste-to-energy firm serves and collects revenue from two types of customers: waste generators who pay for waste disposal service, and electricity consumers who buy energy. Given the pro...
The paper traces the emergence of urban environmental history first in the United States and since the 1990s increasingly also in Europe. It identifies the development of large technical networks which provide cities with water and energy and which serve to take problematic substances and waste out of urban areas as a central theme of this new subfield where scholars from urban history, environ...
Municipal Solid Waste Management (MSWM) has become the greatest problem facing many urban and semi-urban areas in Nigeria, although to varying degrees. This study suggests the various steps and approaches to combat the menace in Akure in the southwest zone of Nigeria. Such approaches include creation of special agencies for the collection, recycling and conversion of Municipal Solid Waste (MSW)...
Introduction: About 50 to 70 percent of the waste management total cost is spent on collection operations, so any little progress in reducing collection costs could significantly reduce total costs. This study aimed to analyze the collection and transportation of municipal solid waste cost in Yazd in the next 15 years. Materials and Methods: The study location (five areas) was different urban ...
This paper provides an overview of the state of municipal solid waste management (MSWM) by local authorities in Kenya as a case study of a low-income developing country. Approaches of possible solutions that can be undertaken to improve municipal solid waste (MSW) services are discussed. Poor economic growth (1.1% in 1993) has resulted in an increase in the poverty level which presently stands ...
Solid waste is a major urban challenge worldwide and reclaiming the resources embedded in waste streams, involving organized recyclers, is a smart response to it. Informal and organized recyclers, mostly in the global south, already act as important urban miners in resource recovery. The paper describes the complex operations of recycling cooperatives and draws attention to their economic, envi...
Managing excess nutrients remains a major obstacle to improving ecosystem service benefits of urban waters. To inform more ecologically based landscape nutrient management, we compared watershed inputs, outputs, and retention for nitrogen (N) and phosphorus (P) in seven subwatersheds of the Mississippi River in St. Paul, Minnesota. Lawn fertilizer and pet waste dominated N and P inputs, respect...
Background and Objectives: Although amount of hospital waste generation is less than urban waste generation, but because of health risks involved, these wastes need to be managed precisely and specifically. Therefore, the purpose of this study was to survey quality and quantity of waste generation in Emam Khomaini Hospital, Karaj, Iran and to estimate its generation process in future. Materials...
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