نتایج جستجو برای: Midok copper mine

تعداد نتایج: 105523  

Phenol is one of the major aromatic pollutants among variety of toxic compounds. Phenol is a man- made as well as a naturally occurring aromatic compound and an important intermediate in the biodegradation of natural and industrial aromatic compounds. To clean up the aromatic contaminated sites a bioremediation method is considered as an economical and safe approach for the environment. In this...

2017
Lin Yu Zhen Zhang Xiao Huang Binquan Jiao Dongwei Li

Copper-mine tailings are the residual products after the extraction of precious copper metal from copper ores, and their storage can create numerous environmental problems. Many researchers have used copper-mine tailings for the preparation of geopolymers. This paper studies the enhancement of the cementitious activity of copper-mine tailings in geopolymer systems. First, copper-mine tailings a...

2017
Lin Yu Zhen Zhang Xiao Huang Binquan Jiao Dongwei Li

Copper mine tailings are the residual products after the purification of precious copper from copper ores, and their storage can create numerous environmental problems. Many researchers have used copper mine tailings for preparation of geopolymer. This paper studies the enhancement of the cementitious activity of copper mine tailings in geopolymer system. First, copper mine tailings are activat...

Journal: :نشریه دانشکده فنی 0
مجید میبدیان دانشگاه تهران حسین معماریان دانشگاه تهران مهدی زارع پژوهشگاه زلزله

sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of iran and most probably the second largest copper mine in the world. this mine is located in the seismotectonic zone of central-iran, and 23 km away from the 150 km long rafsanjan active fault.in this study the vulnerability of the west wall of the...

Journal: :Bulletin of environmental contamination and toxicology 1992
K Vermeer J A Thompson

Since 1971, Island Copper Mine has been operating an open-pit mine, mainly for copper on the north shore of Rupert Inlet. Rupert Inlet is the most easterly inlet of Quatsino Sound on northern Vancouver Island, British Columbia (Fig. i). The ore body was estimated to contain 250 million tons of reserves. Mining is proposed to be continued until 1996, at which time the reserves will have been dep...

Journal: :The Science of the total environment 2002
T M Mighall P W Abrahams J P Grattan D Hayes S Timberlake S Forsyth

This paper presents geochemical data from a blanket peat located close to a Bronze Age copper mine on the northern slopes of the Ystwyth valley, Ceredigion, mid-Wales, UK. The research objective was to explore the possibility that the peat contained a geochemical record of the pollution generateD by mining activity. Four peat monoliths were extracted from the blanket peat to reconstruct the pol...

Journal: :محیط زیست طبیعی 0
پریسا تابان کارشناسی ارشد محیط زیست، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران کوروش کاوسی کارشناس ارشد گیاه شناسی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران اسماعیل کهرم استادیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران حمید گشتاسب استادیار دانشگاه محیط زیست کرج

we studied cu concentration on part of aras riparian vegetation. cu was selected as an index metal due to polluting the aras river through agarak copper mines drainage. results of cu concentration in indicator plant have been examined using spss16. considering the situation of the copper mines as well as the habitat of the indicator plant, two stations before and after the exit of the industria...

Hossein Memarian Majid Meybodian Mehdi Zare

Sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of Iran and most probably the second largest copper mine in the world. This mine is located in the seismotectonic zone of Central-Iran, and 23 Km away from the 150 Km long Rafsanjan active fault.In this study the vulnerability of the west wall of the...

2018
Mikael Larsson Ataollah Nosrati Simarpreet Kaur Jochen Wagner Ulf Baus Magnus Nydén

Mine waters and tailings generated from mining and mineral processing activities often have detrimental impact on the local environment. One example is acid mine drainage, in which sulphides in the mining waste react with water and oxygen to produce an acidic environment that subsequently dissolves host rock minerals from the waste containing toxic metals and trace elements. Copper is one such ...

2016
Bruna Zucoloto da Costa Viviane Drumond Rodrigues Valéria Maia de Oliveira Laura Maria Mariscal Ottoboni Anita Jocelyne Marsaioli

Copper mine drainages are restricted environments that have been overlooked as sources of new biocatalysts for bioremediation and organic syntheses. Therefore, this study aimed to determine the enzymatic activities (esterase, epoxide hydrolase and monooxygenase) of 56 heterotrophic bacteria isolated from a neutral copper mine drainage (Sossego Mine, Canaã dos Carajás, Brazil). Hydrolase and mon...

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