Mycoremediation for Mine Site Rehabilitation

Kumar, Adarsh; Tripti, *; Prasad, M.N.V.; Maiti, Subodh Kumar; Favas, Paulo J.C.

doi:10.1016/b978-0-12-812986-9.00014-2

Cited by 11 publications

(13 citation statements)

References 143 publications

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“…Endophytic non-mycorhizal fungi can promote the remediation of degraded soils due to their regulation of metal(loid)s uptake (Kumar et al, 2018). Therefore, root-colonizing dark septate endophytic fungi (DSE) present conidial or sterile ascomycetes that may occur in contaminated sites protecting plants from metal(loid) stress: Phialophora in Salix caprea (Pb, Cd, Colpaert et al, 2011) and Hymenoscphus ericae in Pinus (Cu, Zn, Cd mine soil, Utmazian et al, 2007).…”

Section: Micoremediationmentioning

confidence: 99%

“…Therefore, root-colonizing dark septate endophytic fungi (DSE) present conidial or sterile ascomycetes that may occur in contaminated sites protecting plants from metal(loid) stress: Phialophora in Salix caprea (Pb, Cd, Colpaert et al, 2011) and Hymenoscphus ericae in Pinus (Cu, Zn, Cd mine soil, Utmazian et al, 2007). In addition, DSE are involved in nutrient cycling i.e., they colonize older parts of the roots where nutrients are redistributed from senescent roots into the active roots (Kumar et al, 2018). Furthermore, melanin in the cell wall of DSE hyphae may decrease metal(loid)s toxicity (Cu, Zn, Pb, Cd) increasing the activity of antioxidant enzymes (SOD, CAT) which in turn decreases oxidative stress (Zhang et al, 2008;Ban et al, 2012).…”

Section: Micoremediationmentioning

confidence: 99%

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Ecological Potential of Plants for Phytoremediation and Ecorestoration of Fly Ash Deposits and Mine Wastes

Gajić

Djurdjević

Kostić

et al. 2018

Front. Environ. Sci.

137

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Fly ash generates as the result of coal combustion in thermoelectric power stations whereas ore mining activities produce mine waste-rock and tailings worldwide. High concentrations of metal(loid)s and organic pollutants in fly ash and mine wastes are released into soil, air, and water presenting a global threat to the surrounding environment and human health. The environmentally sound management of fly ash and mine wasterock and tailings includes monitoring stability of the dam construction and seepage flowrate, prevention of water erosion and dust spreading, reducing the footprint of the management facilities and successful restoration/revegetation. Harsh conditions prevailing on fly ash and mine deposits are unfavorable mechanical composition and pH, high concentrations of soluble salts, lack of nitrogen and phosphorous, reduced number of microorganisms and fungus, toxic concentrations of As, Au, Ag, B, Cu, Cd, Cr, Hg, Mn, Mo, Ni, Pb, Zn, and the presence of PAHs and PCBs. The review addresses phystostabilization, phytoextraction, rhizodegradation, and phytodegradation as main phytoremediation green technologies which use plants to clean up the contaminated area to safe levels. Establishment of the self-sustaining vegetative cover on fly ash and mine deposits is crucial for recovering ecosystem health, stability, and resilience. Therefore, here we have discussed the essential role of native plants in the ecorestoration process on waste deposits. Additional emphasis is given to the evaluation of plant adaptive response to pollution stress. This review presents a current knowledge in phytomanagement of fly ash deposits, mine waste-rock and tailings. Also, it provides a new frontier in restoration physiology where physiological and biochemical tools can be used to predict plant response to stressors and success of restoration projects.

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Section: Micoremediationmentioning

confidence: 99%

Section: Micoremediationmentioning

confidence: 99%

Ecological Potential of Plants for Phytoremediation and Ecorestoration of Fly Ash Deposits and Mine Wastes

Gajić

Djurdjević

Kostić

et al. 2018

Front. Environ. Sci.

137

View full text Add to dashboard Cite

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“…The mining company is responsible for reclaiming disturbed sites following mining activities. To accelerate the process, land reclamation needs to be conducted using ecological technologies, including the role of native plant species as well as soil microorganisms (Bacchetta et al, 2015;Thavamani et al, 2017;Kumar et al, 2018;Novo et al, 2018). The use of phytotechnologies in remediation is recognized as a potentially cost-effective and ecologically sound alternative to current norms of degraded land rehabilitation (Grant et al, 2002;Gastauer et al, 2018;Kumar et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Senegalia senegal (L.) Britton Response to Microbial and Manure Amendments for the Rehabilitation of Waste Rock Dumps in the Essakane Gold Mining Site, Burkina Faso

Yonli

Sene

Sanon

et al. 2022

Front. Environ. Sci.

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Senegalia senegal (L.) Britton (Fabaceae) is a widespread, multipurpose tree capable of colonizing disturbed Sub-Saharan mining sites given its adaptations to arid lands. The purpose of this study was to determine the potential of the association of microbial and/or manure amendments with S. senegal seedlings for the effective rehabilitation of the environment post mining. A multi-year factorial experiment involving this species was conducted in a nursery and on waste rock dumps (Essakane gold mine, NE Burkina Faso). Inoculation with arbuscular mycorrhizal (AM) fungi (native isolate Rhizophagus aggregatus DAOM2277128; commercial isolate Rhizophagus irregularis DAOM197198) and Mesorhizobium plurifarium strain ORS3588 was conducted on S. senegal seedlings. These were planted in black polythene bags filled with three substrate types: 100% sandy soil (substrate A); 75% sandy soil, 25% manure (substrate B); and 50% sandy soil, 50% manure (substrate C). Seedlings were then out-planted on waste rock to determine whether microbial inoculation improves their growth and survival rates. Under nursery conditions, manure-enriched substrates harboured less nodulation and AM colonization, but substantially increased plant height, and dry mass compared to un-amended substrate. Inoculation on manure-enrich substrates did not consistently increase root AM colonization and plant growth parameters among treatments. Plants that were inoculated with R. aggregatus alone or with R. irregularis or Mesorhizobium plurifarium ORS3588 showed the greatest increase in growth variables. On un-amended substrates, inoculation with R. aggregatus in combination with M. plurifarium or R. irregularis significantly enhanced root colonization rates, without altering plant growth parameters. Yet, inoculation with R. irregularis or M. plurifarium alone did not elicit increases in these parameters, although nodulation was greatly improved by the latter treatment. In field conditions, plant growth and survival were reduced under high rate manure amendments, likely due to less AM colonization and root nodulation that was observed for these treatments in nursery before out-planting. Strongly colonized plants on the un-amended substrate and moderately amended substrate showed greater survival after out-planting. Our results support the general conclusion that microbial inoculation and manure-enriched substrates are a viable option for mining site rehabilitation using S. senegal. They also suggest that manure amendments in forest nurseries should be cautiously applied given that high rates may impede establishment of plant symbioses, thereby affecting their performance on waste rock dumps following out-planting.

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“…Thus, it is of interest to search for innovative approaches for the beneficial use of these by-products. Several studies have been performed to reclaim mining sites [12,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36], but no study has focused on the reclamation of mining site by using by-products from the phosphate industry and sewage sludge.…”

Section: Introductionmentioning

confidence: 99%

“…The reclamation phase is very important when the extraction is complete, since it makes it possible to remedy the consequences for rebuilding the new ecosystem and, thus, restoring the site to a natural look [29][30][31][32][33][34][35][36][37]. Indeed, for the success of the reclamation of the site, it is necessary to either look for species which adapt to the conditions of the soil and climate environment, or try to improve the environment by creating favorable soil conditions for the development of plants [38].…”

Section: Introductionmentioning

confidence: 99%

New Approach for Mining Site Reclamation Using Alternative Substrate Based on Phosphate Industry By-Product and Sludge Mixture

et al. 2021

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Mining soils are generally characterized by soils having a coarse texture and low fertility, which makes revegetation a very difficult and delicate operation, especially in arid and semi-arid zones. The main objective of this work is to evaluate different substrates that can both contribute to the successful reclamation of phosphate mining soils and the valorization of phosphate by-product and sewage sludge. The study was carried out in pots under a greenhouse on Italian ryegrass (Lolium multiflorum). The experimental design is a randomized complete block with ten treatments, four repetitions from five substrates: phosphogypsum (PG), phosphate sludge (PS), sewage sludge (SS), topsoil from mining (TS) and phosphate waste rocks (PWR); this corresponds to soil after rock phosphate extraction. Nitrogen fertilization was applied to treatments after soil depletion in treatments not receiving sludge. An aerial biomass measurement and nutrient analysis were carried out for the three cuts. The results showed that a proportion of 65% of PG enriched the substrate in phosphorus by improving the crop yield. The addition of 5% of SS contributed to a significant improvement of ryegrass aerial biomass. In the absence of SS application, the addition of nitrogen is required to maintain crop growth. For large-scale application, TS can be mixed with PS, SS and PG for mine site reclamation.

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Mycoremediation for Mine Site Rehabilitation

Cited by 11 publications

References 143 publications

Ecological Potential of Plants for Phytoremediation and Ecorestoration of Fly Ash Deposits and Mine Wastes

Ecological Potential of Plants for Phytoremediation and Ecorestoration of Fly Ash Deposits and Mine Wastes

Senegalia senegal (L.) Britton Response to Microbial and Manure Amendments for the Rehabilitation of Waste Rock Dumps in the Essakane Gold Mining Site, Burkina Faso

New Approach for Mining Site Reclamation Using Alternative Substrate Based on Phosphate Industry By-Product and Sludge Mixture

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