Survival, growth and element translocation by 4 plant species growing on acidogenic gold mine tailings in Québec

2020 ◽  
Vol 151 ◽  
pp. 105855
Author(s):  
Vanessa Gagnon ◽  
Michaël Rodrigue-Morin ◽  
Martine Migneault ◽  
Antoine Tardif ◽  
Louis Garneau ◽  
...  
Keyword(s):  
Plant Species ◽  
Mine Tailings ◽  
Gold Mine ◽  
Gold Mine Tailings

scholarly journals Mycophytoextraction of Mercury from Small-Scale Gold Mine Tailings Contaminating Agricultural Land and Its Effect on Maize Growth

2017 ◽  
Vol 2 (6) ◽  
pp. 203
Author(s):  
Amrullah Fiqri ◽  
Wani Hadi Utomo ◽  
Eko Handayanto
Keyword(s):  
Plant Species ◽  
Mine Tailings ◽  
Agricultural Land ◽  
Small Scale ◽  
Gold Mine ◽  
Maize Growth ◽  
Local Plant ◽  
Gold Mine Tailings ◽  
Mycorrhizal Inoculation ◽  
Set Up

An experiments aimed to explore the effects of mycorrhizae inoculation on the potential of local plant species (Paspalum conjugatum, Cyperus kyllingia, and Lindernia crustacea) for phytoextraction of mercury from small-scale gold mine tailings contaminating agricultural land has been conducted in a glasshouse.  The first experiment was set up as three plant species, and doses of mycorrhizal inoculation, i.e. 0 and 30 spores/plant. At harvest of 63 days, shoots and roots were analyzed for mercury concentration, consisted of 6 treatments (PcM0; PcM1; CkM0; CkM1; LcM0; LcM1), and the second experiment  using the remediated soils of the first trials consisted of treatments (six treatments previous and one control) were used for growing maize 84 days. Each of the plant seedlings was planted in a plastic pot containing 10 kg of tailing and compost mixture. The results showed that Glomus was the most compatible mycorrhizae against the three types of host plants studied. Mycorrhizal inoculation significantly affected plant growth and biomass weight of three plant species. The highest Hg accumulation (56.3 mg/kg) was observed in the shoot of PcM1. Overall, the tested three plant species could be used for phytoextration of mercury from small-scale gold mine tailings contaminating agricultural land, but its interactions with mycorrhizae did not significantly affect the accumulation of mercury. Myco-phytoextraction of mercury significantly enhanced maize growth and biomass. Keywords: Cyperus kyllingia, Lindernia crustacea; Paspalum conjugatum; phytoremediation; gold mine tailings

scholarly journals Potential utilization of artisanal gold-mine tailings as geopolymeric source material: preliminary investigation

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
John Paul J. Aseniero ◽  
Einstine M. Opiso ◽  
Marybeth Hope T. Banda ◽  
Carlito B. Tabelin
Keyword(s):  
Mine Tailings ◽  
Preliminary Investigation ◽  
Source Material ◽  
Gold Mine ◽  
Gold Mine Tailings

scholarly journals Growth, histochemical and physiological responses of non-edible oil producing plant (Reutealis trisperma) to gold mine tailings

2018 ◽  
Vol 19 (4) ◽  
pp. 1294-1302 ◽  
Author(s):  
MUHAMMAD HILMI ◽  
HAMIM HAMIM ◽  
YOHANA C. SULISTYANINGSIH ◽  
TAUFIKURAHMAN TAUFIKURAHMAN
Keyword(s):  
Mine Tailings ◽  
Shoot Growth ◽  
Physiological Responses ◽  
Gold Mine ◽  
Histochemical Analysis ◽  
Root And Shoot Growth ◽  
Gold Mine Tailings ◽  
Chlorophyll A And B ◽  
Anatomical Characters ◽  
High Level

Hilmi M, Hamim H, Sulistyaningsih YC, Taufikurahman. 2018. Growth, histochemical and physiological responses of nonedibleoil producing plant (Reutealis trisperma) to gold mine tailings. Biodiversitas 19: 1294-1302. Reutealis trisperma (Blanco) AiryShaw is a non-edible biodiesel producing plant that is able to grow well in various unfavorable environmental conditions. The studyaimed to analyze the growth, physiological, and anatomical responses of R. trisperma to gold mine tailings. Three-month-old of R.trisperma were grown in 8 kg of polybags contained with mixed soil-compost medium treated with 0, 25, 50 and 100% of gold minetailings for 3 months. Root and shoot growth, physiological and anatomical characters, and histochemical analysis of Pb inside the rootsand leaves were examined. The root and shoot growth as well as chlorophyll a and b contents of R. trisperma grown in sole gold minetailing at 100% significantly decreased, while at the lower concentration of gold mine tailings, the decrease of the growth performanceswas not significant, or even increased shown in that of 25% of tailing treatment. The treatment of gold mine tailing at 100% alsoinduced lipid peroxidation, indicated by the significant increase in malondialdehyde (MDA) contents in the root as well as the leaves.Histochemical analysis showed that accumulation of Pb occurred both in roots as well as in leaves of R. trisperma treated with 100% oftailings. High-level tailing treatment also induced anatomical alteration in roots as well as leaves of the species. These results indicatedthat gold mine tailings induced oxidative stress in roots and leaves of R. trisperma resulted in growth inhibition.

scholarly journals Gold Mine Tailings: A Potential Source of Silica Sand for Glass Making

Minerals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 448 ◽  
Author(s):  
Uchenna Okereafor ◽  
Mamookho Makhatha ◽  
Lukhanyo Mekuto ◽  
Vuyo Mavumengwana
Keyword(s):  
Mine Tailings ◽  
Potentially Toxic Elements ◽  
Silica Sand ◽  
Mine Wastes ◽  
Gold Mine ◽  
X Ray Diffraction ◽  
X Ray ◽  
Potential Source ◽  
Gold Mine Tailings ◽  
Cadmium Zinc

Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to manufacture glass from gold mine tailings. X-ray fluorescence was used to determine the chemical composition of the tailings while X-ray diffraction was adopted for the mineralogy. The tailings were of granitic composition enriched in potentially toxic elements such as copper, cadmium, zinc, lead, arsenic, and chromium. A representative sample of gold mine wastes of sandy grain size was used in making the glass. Based on composition, the glass was formulated by adding an average 10.0 mass% of CaCO3 and 5.0 mass% of Na2CO3 to 35.0 mass% of SiO2, which resulted in the production of a green-coloured glass.

Sign in / Sign up

Export Citation Format

Share Document