نتایج جستجو برای: a waste tailing from alumina production

تعداد نتایج: 14731793  

2014
B. M. Sunil

Current research emphasis is more on the utilization of materials that are considered as waste. Tailings and fly ash are major category of industrial wastes, whose disposal is problematic from environmental point of view. In this present research, Industrial byproducts, namely, lime (CaO) and class F type fly ash have been used as candidate materials along with the partial addition of ordinary ...

2017
Beatriz A Osuna Conor J Howard Subheksha Kc Adam Frost David E Weinberg

Ribosomes can stall during translation due to defects in the mRNA template or translation machinery, leading to the production of incomplete proteins. The Ribosome-associated Quality control Complex (RQC) engages stalled ribosomes and targets nascent polypeptides for proteasomal degradation. However, how each RQC component contributes to this process remains unclear. Here we demonstrate that ke...

2012
Khamirul Amin Matori Loy Chee Wah Mansor Hashim Ismayadi Ismail Mohd Hafiz Mohd Zaid

We report on a recycling project in which α-Al(2)O(3) was produced from aluminum cans because no such work has been reported in literature. Heated aluminum cans were mixed with 8.0 M of H(2)SO(4) solution to form an Al(2)(SO(4))(3) solution. The Al(2)(SO(4))(3) salt was contained in a white semi-liquid solution with excess H(2)SO(4); some unreacted aluminum pieces were also present. The solutio...

2013

Before the Industrial Revolution production systems comprised a cycle in which the waste was produced and absorbed by the environment. With the uncontrolled growth of cities and the increase of the population was a major consequence of the increased production of waste. There was, thus, waste management that aims to manage, in an organized and consistent, both the handling and disposal of such ...

Journal: :ISPRS Int. J. Geo-Information 2014
W. Charles Kerfoot Martin M. Hobmeier Foad Yousef Sarah A. Green Robert Regis Colin N. Brooks Robert A. Shuchman Jamey Anderson Molly Reif

There are numerous examples of past and present mine disposal into freshwater and marine coastal bays and riverine environments. Due to its high spatial resolution and extended water penetration, coastal light detection and ranging (LiDAR), coupled with multispectral scanning (MSS), has great promise for resolving disturbed shoreline features in low turbidity environments. Migrating mine tailin...

2011
Jenő Hancsók Péter Baladincz Tamás Kasza Sándor Kovács Csaba Tóth Zoltán Varga

Besides the second generations bio fuels, one of the most promising products is the bio gas oil, which is a high iso-paraffin containing fuel, which could be produced by the catalytic hydrogenation of different triglycerides. To broaden the feedstock of the bio gas oil the catalytic hydrogenation of waste lard over sulphided NiMo/Al(2)O(3) catalyst, and as the second step, the isomerization of ...

2002

Introduction Archaeological investigations of landfills have revealed that biodegradable wastes can be found — virtually intact — 25 years after burial. We know that landfills contain bacteria with the metabolic capability to degrade many of the materials that are common components of municipal refuse. The persistence for decades of degradable materials in the presence of such organisms appears...

2015
Qiangui Zhang Guangzhi Yin Xiangyu Fan Zuoan Wei Wensong Wang Wen Nie Karen Hudson-Edwards

The failure of a tailing dam occurs due to damage to the particles’ micro-structure. Understanding the deformation characteristics of the particle’ micro-structure is important for understanding the mechanics of instability in tailing dams. In our study, a series of experiments was conducted using a testing apparatus for micro-mechanics and the deformation of tailings from the Huangcaoping tail...

ژورنال: سلامت کار ایران 2013

Background and Aims:   In the last decades, hazardous wastes have been one of the most important issues resulted from industries progress. Improper transport of hazardous waste has created many problems for human health and the environment. Therefore it is necessary to adopt management plan for disposal of waste materials. Regarding our country pollution control plan needs to be advanced in par...

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