نتایج جستجو برای: waste composition

تعداد نتایج: 337934  

2014
Martin Oteng-Ababio

Conventional solid waste management protocols and thinking generally tend to assume that waste already exits and therefore needs to be managed. Consequently, most models of solid waste management, especially in the developing countries including Ghana, are simply reactions to the presence of something that needs to be disposed of or discarded. This paper sees this conventional solid waste manag...

Journal: :محیط زیست طبیعی 0
رضا رفیعی دانشجوی دکتری دانشگاه کویینزلند

the aim of the present paper was to assess the maximum biochemical methane potential (bmp) of municipal solid waste. a fresh stock of the biodegradable fraction of municipal solid waste was composed based on the typical composition of biodegradable waste disposed at the landfill. bmp tests were performed under controlled conditions. the cumulative methane generation profile was corrected for me...

Journal: :Waste management 2010
Shan-Shan Chung Ka-Yan Winifred Lau Chan Zhang

All too often, waste authorities either assume that they know enough about their bulky waste stream or that it is too insignificant to deserve attention. In this paper, we use Hong Kong as an example to illustrate that official bulky waste figures can actually be very different from the reality and therefore important waste management decisions made based on such statistics may be wrong too. Th...

2013
Konstantin Georgievich Pugin

At the present day in Russia the change of ferrous metals production technology results in the change of the chemical composition of solid waste from iron and steel works. Traditional approaches to waste recycling methods stop meeting the requirements of geoecological safety. The paper offers a methodology of usage of the ferrous industry waste taking into consideration a life cycle of the mate...

2011
Elmira Shamshiry Behzad Nadi Mazlin Bin Mokhtar Ibrahim Komoo Halimaton Saadiah Hashim Nadzri Yahaya

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...

ژورنال: علوم آب و خاک 2018

Landfill sites are one of the most important sources of contaminant entry to the environment. In this research, the concentrations of Cu, Pb, Ni, Cd, and organic compound BPA in Hamadan landfill were evaluated to determine the status of its burial environment in 2014. Seven water samples (2 samples from spring and 5 samples from well), 2 leachate samples and 15 soil samples were collected from ...

Journal: :The Journal of chemical physics 2013
Antonio Tilocca

A set of molecular dynamics simulations were performed to investigate the effect of cooling rate and system size on the medium-range structure of melt-derived multicomponent silicate glasses, represented by the quaternary 45S5 Bioglass composition. Given the significant impact of the glass degradation on applications of these materials in biomedicine and nuclear waste disposal, bulk structural ...

2000
T. M. BESMANN K. E. SPEAR E. C. BEAHM

A relatively simple model, the associate species model, is being applied to nuclear waste glass compositions in order to accurately predict behavior and thermodynamic activities in the material. In the model, the glass is treated as a supercooled liquid, with the liquid species allowed to exist below their melting point. The approach requires an initial assembly of binary and ternary oxide liqu...

Journal: :مجله بهداشت محیط و توسعه پایدار 0
lida rafati maryam rahmaniboldaji maryam khodadadi zahra atafar mohamad hassan ehrampoush seyedmojtaba momtaz

introduction: countries around the world are looking for an appropriate, stable, and affordable replacement for the natural energies. therefore, the waste is considered as an available resource to produce energy, which by controlling, its effects on the environment could be minimized. methods: to conduct this review article, all the scientific data related to the topic were gathered from scient...

2015
Yasuhiro Matsui Do Thi Thu Trang Nguyen Phuc Thanh

This study was conducted to provide a detailed description of waste generation and characteristics from a traditional market in Hue city, located in central Vietnam. The authors conducted a waste generation survey and a waste composition survey for 309 stalls/vendors in five markets by 17 business categories for 10 consecutive days. The waste generation rates by stall/vendor and by floor area w...

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