Bioremediation of Acid Mine Drainage in an Uranium Deposit

Groudev, Stoyan; Georgiev, Plamen; Spasova, Irena; Nicolova, Marina

doi:10.4028/www.scientific.net/amr.20-21.248

Cited by 11 publications

(9 citation statements)

References 4 publications

(4 reference statements)

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“…Bioremediation is a soil and water management technique that uses biological organisms to break down and remove contaminants, including industrial, agricultural, and urban runoff (Gottschall et al 2007;Pietro and Ivanoff 2015), wastewater (Vymazal 2013;Bhatia and Goyal 2014;Vymazal 2014), and mine waste (Groudev et al 2008). Natural and constructed wetlands are widely used for various types of bioremediation, including phytoremediation (plants), microbial bioremediation (microorganisms), and mycoremediation (fungi) (Stottmeister et al 2003;Marchand et al 2010;Headley and Tanner 2012;Biswas 2015;Truu et al 2015).…”

Section: Bioremediationmentioning

confidence: 99%

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

et al. 2019

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Typha is an iconic wetland plant found worldwide. Hybridization and anthropogenic disturbances have resulted in large increases in Typha abundance in wetland ecosystems throughout North America at a cost to native floral and faunal biodiversity. As demonstrated by three regional case studies, Typha is capable of rapidly colonizing habitats and forming monodominant vegetation stands due to traits such as robust size, rapid growth rate, and rhizomatic expansion. Increased nutrient inputs into wetlands and altered hydrologic regimes are among the principal anthropogenic drivers of Typha invasion. Typha is associated with a wide range of negative ecological impacts to wetland and agricultural systems, but also is linked with a variety of ecosystem services such as bioremediation and provisioning of biomass, as well as an assortment of traditional cultural uses. Numerous physical, chemical, and hydrologic control methods are used to manage invasive Typha, but results are inconsistent and multiple methods and repeated treatments often are required. While this review focuses on invasive Typha in North America, the literature cited comes from research on Typha and other invasive species from around the world. As such, many of the underlying concepts in this review are relevant to invasive species in other wetland ecosystems worldwide.

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Section: Bioremediationmentioning

confidence: 99%

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

et al. 2019

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“…The extent of uptake is dependant upon the type of plant and the metal that is being removed. Plant roots can remove arsenic and other heavy metals [25]. Duckweed has been shown to be an excellent accumulator of cadmium, copper, and selenium.…”

Section: Fe 3+ + 12 H 2 O 4fe (Oh) 3 +12h +mentioning

confidence: 99%

“…Sulfate reduction in two AMD sites in Ohio [24] showed sulfate removal by bacteria (in wetlands) to vary from 45% in winter to 55% during the summer months. Natural wetlands in Yugoslavia demonstrated sulfate losses ranging from 45-67% [25]. Adding bales of hay and other organic matter such as peat, wood shavings, or compost to the wetlands and holding pool will result in greater sulfate reduction.…”

Section: Fe 3+ + 12 H 2 O 4fe (Oh) 3 +12h +mentioning

confidence: 99%

Constructed Wetlands for the Pre-Treatment of Drinking Water Obtained from Coal Mines

Varnell¹,

Thawaba²,

Brahana³

2009

TOENVIEJ

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Greenwood, Arkansas, a city of about 7,700 people in west-central Arkansas, has experienced tremendous growth in population during the past decade. The city has the current capacity to produce 4.55x10 6 L of water daily. Demand for city water use is expected to exceed 6.82 x10 6 L within the next five years. An additional 2.27x10 6 L per day is needed to augment the current supply. Two abandoned, flooded coal mines located near the city have estimated water storage in excess of 1.97x 10 9 L of water. The water has high concentrations of total dissolved solids (TDS), sulfate, and iron. If a decision is made to use the water, it will require treatment to reduce these constituents to acceptable levels. Designing and constructing a viable wetland for pretreatment of mine water would offer Greenwood an inexpensive, passive method to utilize the water from the coal mines. If the city can use water from the coal mines to augment the present reservoir, the expected savings would exceed twenty million dollars. Integrating this system into the current city park system and green-space will provide a multipurpose facility that can be used for recreation, education, and wildlife enhancement.

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“…No solamente en condiciones de acidez pueden derivarse problemas ambientales, ya que también se ha reportado que el drenaje neutro puede ser peligroso por la presencia de As, Mo, Mn, U (Nordstrom, 2011). En la literatura científica se ha reportado la contaminación de suelos, ríos y acuíferos como consecuencia del DAM (Filipek et al, 1987;Gray, 1998;Groudev et al, 2008;Reglero et al, 2008;Heikkinen y Räisänen, 2009). Por lo tanto, evaluar la peligrosidad de los residuos mineros es una tarea de mucha importancia que deben de emprender las industrias y regular los gobiernos para fomentar y promover el manejo adecuado de los residuos mineros, principalmente los denominados jales.…”

Section: Introductionunclassified

Adecuaciones para mejorar la aplicación del método D3987-85 en la extracción de EPT de los antiguos residuos mineros El Fraile, Guerrero, México

Corrales-Pérez¹,

Martín-Romero²

2018

revmexcg

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El método D3987-85 es uno de los procedimientos de lixiviación utilizados en el mundo para evaluar la peligrosidad de los jales de minas. El método ha sido oficializado en México en la Norma Oficial Mexicana NOM-141-SEMARNAT-2003; y durante su aplicación se han reportado inconsistencias que podrían traer graves repercusiones en la salud humana y en el ambiente. En el presente estudio se realizaron modificaciones al tiempo de agitación y relación de mezcla indicados en el método D3987-85. Adicionalmente, se implementaron técnicas eficientes de muestreo para representar más acertadamente la peligrosidad de los antiguos residuos depositados en la presa de jales El Fraile, localizada en Taxco, estado de Guerrero, México. Los jales se caracterizan por presentar concentraciones totales (mg/kg) de elementos potencialmente tóxicos (EPT) en los siguientes intervalos: As (1,719.0–3,412.1), Ag (27.8–55.7), Ba (152.1–527.3), Cd (15.6–49.7), Cu (89.7–204.5), Mn (243.6–2,195.5), Pb (3,084.9–4,930.1), Zn (449.0–5,558.7), y la presencia de las siguientes fases minerales, en orden de abundancia: cuarzo, yeso, jarosita potásica, filosilicatos, hematita, feldespatos potásicos tipo sanidina. Así mismo, de las presas de jales se colectaron tres muestras de efluentes ácidos (pH: 2.0–2.6), que registraron concentraciones (mg/L) de SO42- (3,509.3–12,249.9), Fe (459.3–1,505.0) y EPT (As: 0.7–1.3, Cd: 2.8–12.3, Cu: 6.1–23.7, Mn: 76.4–316, Zn: 334.5–1,262.5), y fueron comparadas con la composición química de las suspensiones de jales en agua (SJA) preparadas en laboratorio mediante el método D3987-85. Los efluentes ácidos son clasificados como peligrosos con base en las concentraciones de Cd disuelto (>1.0 mg/L), ya que sobrepasaron el límite máximo permisible regulado en la Norma Oficial Mexicana 141. Sin embargo, cuando se comparó la peligrosidad de las SJA preparadas mediante el método D3987-85 (18 ± 0.25 h y relación sólido-extractante de 1:20), resultó que no son peligrosos, ya que las SJA presentaron concentraciones de Cd disuelto que oscilan entre 0.2 a 0.4 mg/L. No obstante, cuando se realizaron modificaciones al método D3987-85 que consistieron en aumentar los tiempos de agitación (24 ± 0.25 h, 48 ± 0.25 h, 72 ± 0.25 h, 192 ± 0.25 h) y disminuir las relaciones de mezcla (1:10, 1:3), se obtuvieron concentraciones de Cd disuelto que oscilan entre 0.3 a 2.4 mg/L. De esta forma, se logró demostrar que las SJA obtenidas con el método modificado representan mejor la composición geoquímica de los efluentes ácidos colectados en campo, lo cual contribuye a evaluar la peligrosidad de los jales de forma más rigurosa y confiable.

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Bioremediation of Acid Mine Drainage in an Uranium Deposit

Cited by 11 publications

References 4 publications

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

Constructed Wetlands for the Pre-Treatment of Drinking Water Obtained from Coal Mines

Adecuaciones para mejorar la aplicación del método D3987-85 en la extracción de EPT de los antiguos residuos mineros El Fraile, Guerrero, México

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