Results 11 to 20 of about 4,345 (254)

Niobium-Titanium-Based Photocatalysts: Its Potentials for Free Cyanide Oxidation in Residual Aqueous Effluent [PDF]

Frontiers in Chemistry, 2020
Organic compounds are employed as additives to increase the dissolution speed of gold, in concentrations around 1 g/L when using cyanidation, thereby forming a residual aqueous effluent with high amounts of free cyanides and organic compounds, which ...
Aida Liliana Barbosa López, Isel M. Castro   +1 more
doaj   +3 more sources

Wetland-based passive treatment systems for gold ore processing effluents containing residual cyanide, metals and nitrogen species [PDF]

Environmental Science: Processes & Impacts, 2013
Gold extraction operations generate a variety of wastes requiring responsible disposal in compliance with current environmental regulations. During recent decades, increased emphasis has been placed on effluent control and treatment, in order to avoid ...
Loredo, J., Ordóñez, A., Younger, P.L., Álvarez, R.   +3 more
core   +4 more sources

A Study of Residual Cyanides and Potential Stabilities in Tailings Storage Facility of Gold Mining Operation

Applied Environmental Research, 2015
The study aimed to investigate residual cyanides and their potential stabilities in tailings from a gold processing plant deposited in the Tailings Storage Facility (TSF) of a gold mining site.
Suwanit Parinyachet, Quanchai Leepowpanth   +1 more
doaj   +7 more sources

Removal of Cyanide in Gold Cyanide Residues through Persulfate-Advanced Oxidation Process

Minerals, 2023
The toxic cyanides in gold cyanide residues produced in the cyanidation process of gold extraction threaten environmental safety and inhibit the recovery of valuable metals. In this study, the removal of cyanide through the persulfate-advanced oxidation process was investigated, and heat activation and ultrasonic activation were tested for cyanide ...
Wenwen Han, Hongying Yang, Linlin Tong
openaire   +1 more source

The cyanide sensitivity of the residual respiration inSchizosaccharomyces japonicus [PDF]

FEMS Microbiology Letters, 1984
Abstract Schizosaccharomyces japonicus, a highly respiratory deficient yeast species, contains two terminal oxidase systems. One is highly sensitive to cyanide like the main terminal oxidase system of respiratory sufficient yeasts. The alternative system is hardly sensitive to cyanide like the usual terminal oxidase system of other respiratory ...
Bulder, C.J.E.A., Wijers, C.
openaire   +3 more sources

Analysis of Chemical Composition and Methodology for Obtaining Manipueira Molasses/Análise da Composição Química e Metodologia de Obtenção do Melaço da Manipueira

Diversitas Journal, 2020
Manipueira, a residual liquid from cassava with a high organic load and toxic compounds, can cause negative environmental impacts.
Janesmar Camilo de Mendonça Cavalcanti, José Crisólogo de Sales Silva, Esmeralda Aparecida Porto Lopes, Giliard José Lopes   +3 more
doaj   +1 more source

Anomalous thermal expansion in 1D transition-metal cyanides: what makes the novel trimetallic cyanide Cu1/3Ag1/3Au1/3CN behave differently? [PDF]

, 2019
The structural dynamics of a quasi-one-dimensional (1D) mixed-metal cyanide, Cu1/3Ag1/3Au1/3CN, with intriguing thermal properties is explored. All the current known related compounds with straight-chain structures, such as group 11 cyanides CuCN, AgCN ...
A. Sjölander, Ann M. Chippindale, Camille Wright, D. C. Wallace, D. L. Price, Dean S. Keeble, Mohamed Zbiri, Nicholas H. Rees, Simon J. Hibble, Stella d’Ambrumenil   +9 more
core   +2 more sources

Resonant inelastic x-ray scattering probes the electron-phonon coupling in the spin-liquid kappa-(BEDT-TTF)2Cu2(CN)3 [PDF]

, 2017
Resonant inelastic x-ray scattering at the N K edge reveals clearly resolved harmonics of the anion plane vibrations in the kappa-(BEDT-TTF)2Cu2(CN)3 spin-liquid insulator. Tuning the incoming light energy at the K edge of two distinct N sites permits to
Carniato, S., Foury-Leylekian, P., Ilakovac, V., Joly, Y., Kanoda, K., Lazic, P., Miyagawa, K., Nicolaou, A., Pouget, J. -P., Tomic, S.   +9 more
core   +2 more sources

Ensiling Cyanide Residue and In Vitro Rumen Fermentation of Cassava Root Silage Treated with Cyanide-Utilizing Bacteria and Cellulase

Fermentation, 2023
Cyanide is a strong toxin in many tropical forage plants that can negatively affect ruminants. The aim of this study is to determine the cyanide removal efficiency, silage quality, and in vitro rumen fermentation of fresh cassava roots ensiled without an additive (control) and with Acremonium cellulase (AC), two cyanide-utilizing bacterial inoculants ...
Waroon Khota, Chatchai Kaewpila, Rattikan Suwannasing, Nikom Srikacha, Julasinee Maensathit, Kessara Ampaporn, Pairote Patarapreecha, Suwit Thip-uten, Pakpoom Sawnongbue, Sayan Subepang, Kriwit Khanbu, Anusorn Cherdthong   +11 more
openaire   +2 more sources

Electronic structure of hole-doped Co-Fe cyanides: Na1.60−deltaCo[Fe(CN)6]0.90·2.9H2O (0.0<=delta<=0.85) [PDF]

, 2008
Lattice, magnetic, and optical properties are investigated for films of Prussian-blue-type cyanides, Na1.60−deltaCo[Fe(CN)6]0.90·2.9H2O (0.02g5eg2:S=3/2)-Fe2+ (t2g6:S=0) configuration, and the holes are selectively introduced on the Co site.
Igarashi K., Moritomo Y., Nakada F., 守友 浩   +3 more
core   +1 more source