نتایج جستجو برای: waste materials

تعداد نتایج: 507785  

2014
Babita Singh Ravi Kumar Sharma

Nowadays, disposal of waste materials has become a matter of serious concern due to environmental and ecological issues. In this paper, an attempt is made to determine an optimum proportion mix suitable for geotechnical applications by blending the locally available clayey soil with sand, fly ash, tile waste and jute fibers. This optimum mix provides a cheaper construction material and helps in...

2013
Veena Sahajwalla

A Publication of the Association for Iron & Steel Technology Ironand steelmaking processes present a largely untapped opportunity to transform some of the world’s most problematic waste streams into raw materials for production. This opportunity lies in their high-temperature environments, which offer sustainable pathways for utilizing chemical reactions to repurpose waste materials as resource...

2014
A. Oyewole

Current hazardous waste disposal policies in the Home Health Care setting were evaluated as it related to the need for better regulation of hazardous materials entering residential waste streams. It was found that all waste materials from home care visits with the exception of “sharps,” were placed directly into residential waste streams. Therefore, large volumes of potentially hazardous waste ...

2017
Vincenzo Gente Floriana La Marca

Hazardous waste management should fulfil the following three main goals: (i) to protect human health and the environment, (ii) to reduce waste while conserving energy and natural resources and (iii) to reduce or eliminate the volume of waste to dispose of. The last two of these goals may derive from recycling, which aims at reducing raw materials and energy consumption and decreasing the volume...

Journal: :Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 2007
David C Wilson

This paper identifies six broad groups of drivers for development in waste management. Public health led to the emergence of formalized waste collection systems in the nineteenth century, and remains a key driver in developing countries. Environmental protection came to the forefront in the 1970s, with an initial focus on eliminating uncontrolled disposal, followed by the systematic increasing ...

Journal: :علوم و تکنولوژی پلیمر 0
اعظم یوسفی علی اکبر یوسفی مهدی ارجمند

the polymeric and non-polymeric petrochemical wastes are environmentally unfavorable materials. we have to found a way to reuse these wastes in a safe manner. in styrene-butadiene rubber (sbr) production plant two major wastes are produced one is a fine rubber powder and the other is recycled n-methyl pyrrolidone (nmp). in high-density polyethylene (hdpe) production plant also a low molecular w...

2012
Mansi Jain

The excessive wastage of materials, improper management on site and low awareness of the need for waste reduction are common in the local construction sites in India. Today, in most European countries, it is economically feasible to recycle up to 80–90% of the total amount of construction waste and most demolition and recycling technologies are generally easy to implement and control (Lauritzen...

2017
Sunil Kumar Stephen R Smith Geoff Fowler Costas Velis S Jyoti Kumar Shashi Arya Rena Rakesh Kumar Christopher Cheeseman

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...

Journal: :Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 2010
M Larney A M van Aardt

The need for effective apparel waste management is motivated by the increasing cost and decreasing availability of landfill space and the dwindling of natural resources. The aim of this study was to identify the current solid waste disposal and recycling practices of the apparel industry in South Africa and to determine their attitude and willingness towards recycling, their perception of the f...

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