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Paulo Roberto Cleyton de Castro Ribeiro, Douglas Gomes Viana, Fábio Ribeiro Pires, Fernando Barboza Egreja Filho, Robson Bonomo, Alberto Cargnelutti Filho, Luiz Fernando Martins, Leila Beatriz Silva Cruz, Mauro César Pinto Nascimento
The use of barite (BaSO4) in drilling fluids for oil and gas activities makes barium a potential contaminant in case of spills onto flooded soils, where low redox conditions may increase barium sulfate solubility. In order to select plants able to remove barium in such scenarios, the following species were evaluated on barium phytoextraction capacity: Brachiaria arrecta, Cyperus papyrus, Eleocharis acutangula, E. interstincta, Nephrolepsis cf. rivularis, Oryza sativa IRGA 424, O. sativa BRS Tropical, Paspalum conspersum, and Typha domingensis...
May 10, 2018: Chemosphere
Mirosław Mleczek, Piotr Goliński, Bogusława Waliszewska, Andrzej Mocek, Monika Gąsecka, Magdalena Zborowska, Zuzanna Magdziak, Wojciech J Cichy, Bartłomiej Mazela, Tomisław Kozubik, Agnieszka Mocek-Płóciniak, Waldemar Moliński, Przemysław Niedzielski
Trees of Scots pine (Pinus sylvestris L.) are known for their effective phytoextraction capabilities. The results obtained in this study point to the significant role of substrate composition and chemical characteristics in the phytoextraction potential of this species. A multi-elemental (53 elements) analysis of pines from unpolluted (soil) and polluted (post-flotation tailings) sites was performed using inductively coupled plasma optical emission spectrometry. The analyzed flotation tailings were characterized by alkaline pH (7...
May 18, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Vivek Rana, Subodh Kumar Maiti
The release of industrial effluents into natural wetlands is a ubiquitous problem worldwide, and phytoremediation could be a viable option for treatment. The present study assessed metal accumulation strategies of three dominant emergent plants [Colocasia esculenta (L.) Schott, Scirpus grossus (L.) f., and Typha latifolia L.] growing in a wetland contaminated with coke-oven effluent. Metals concentration (mg kg-1 ) in wetland sediment followed the order Mn (408) > Cu (97) > Co (14.2) > Cr (14) > Cd (2...
May 14, 2018: Bulletin of Environmental Contamination and Toxicology
Piotr Bulak, Cezary Polakowski, Katarzyna Nowak, Adam Waśko, Dariusz Wiącek, Andrzej Bieganowski
This study investigated the use of Hermetia illucens (black soldier fly - BSF) larvae as a new species for use in entomoremediation. The H. illucens larvae effectively reduced the dry mass of polluted corn leaves by an average of 49% after 36days for both Cd and Zn (50mg·kg-1 ), which is a better result than that, which can be obtained by one of the standard proposed pretreatments for biomass polluted after phytoextraction: composting. The presence of heavy metals did not significantly affect the dry mass utilization efficiency...
August 15, 2018: Science of the Total Environment
Alice Hazotte, Olivier Péron, Pierre Gaudin, Abdesselam Abdelouas, Thierry Lebeau
With the aim of improving the phytoextraction rate of cesium (Cs), the effect of Pseudomonas fluorescens ATCC 17400 and its siderophore pyoverdine (PVD) on the uptake of Cs by red clover was studied in soil pots. This work also provides a mechanistic understanding of the Cs-bacteria (or PVD)-illite-plant interactions by using a simplified experimental design, i.e., hydroponics with either Cs in solution or Cs-spiked illite in suspension. For soil spiked with 11.2 mmol kg-1 (1480 mg kg-1 ) of Cs, 0.43% of total Cs was taken up by red clover in 12 days (119 μmol g-1 (16 mg g-1 ) of Cs dry matter in roots and 40 μmol g-1 (5 mg g-1 ) in shoots)...
May 12, 2018: Environmental Science and Pollution Research International
Peter Andráš, João Xavier Matos, Ingrid Turisová, Maria João Batista, Radoslava Kanianska, Sherif Kharbish
São Domingos belongs among the most important historic Iberian Pyrite Belt Cu mines. The anthrosoil is contaminated by a very high content of heavy metals and metalloids. The study was focused on evaluating the interaction of some chemical elements (Ca, Mg, Fe, Mn, Cu, Pb, Zn, Ag, Cd, Ni, Co, As, Sb) in the system soil vs. five autochthonous dominant plant species: Pinus pinaster Aiton, Quercus rotundifolia Lam., Agrostis sp., Juncus conglomeratus L. and Juncus effusus L. The plants are heavily contaminated by Cu, Pb, As and Zn...
May 11, 2018: Environmental Science and Pollution Research International
Vivek Rana, Subodh Kumar Maiti
This paper elucidates phytoremediation potential of two wetland plants (Colocasia esculenta (L.) Schott and Typha latifolia L.) for municipal wastewater treatment using constructed wetland (CW) mesocosms. The concentrations (mg L-1 ) of chemical oxygen demand (COD), total kjeldahl nitrogen (TKN), Cu, Cd, Cr, Zn, and Pb in municipal wastewater were higher than permissible Indian standards for inland surface water disposal; however, Mn and Ni were within the permissible limits. The pollutant removal efficiencies of planted CWs varied as electrical conductivity (EC) 67...
May 5, 2018: Environmental Monitoring and Assessment
Xiaoli Qian, Yonggui Wu, Hongyun Zhou, Xiaohang Xu, Zhidong Xu, Lihai Shang, Guangle Qiu
Total mercury (THg) and methylmercury (MMHg) were investigated in 259 wild plants belonging to 49 species in 29 families that grew in heavily Hg-contaminated wastelands composed of cinnabar ore mine tailings (calcines) in the Wanshan region, southwestern China, the world's third largest Hg mining district. The bioconcentration factors (BCFs) of THg and MMHg from soil to roots ([THg]root /[THg]soil , [MMHg]root /[MMHg]soil ) were evaluated. The results showed that THg and MMHg in both plants and soils varied widely, with ranges of 0...
May 2, 2018: Environmental Pollution
Zahra Ghasemi, Seyed Majid Ghaderian, Carmela Monterroso, Petra S Kidd
Phytomining techniques based on metal-hyperaccumulating plants can be implemented in serpentine quarry wastes for Ni recovery. However, strategies must be developed to overcome the unfavourable plant growth conditions that these substrates present and to optimize Ni yields. In this study, the Ni hyperaccumulators Alyssum serpyllifolium, Alyssum inflatum, and Alyssum bracteatum were evaluated for their Ni phytoextraction efficiency from quarry tailings. Effects of two organic amendments, composted municipal sewage sludge and cow manure, on plant growth and physiological status and Ni removal were determined...
June 7, 2018: International Journal of Phytoremediation
Gagan Preet Singh Sidhu, Aditi Shreeya Bali, Harminder Pal Singh, Daizy R Batish, Ravinder Kumar Kohli
In a screenhouse, the applicability of biodegradable chelant ethylenediamine disuccinic acid (EDDS) to enhance Ni-phytoextraction by Coronopus didymus was tested for the first time. This study assayed the hypothesis based upon the role of EDDS on physiological and biochemical alterations and ameliorating phytoextraction capacity of C. didymus under nickel (Ni) stress. Pot experiments were conducted for 6 weeks and C. didymus plants were cultivated in soil artificially contaminated with 30, 50, and 70 mg kg-1 Ni treatments...
April 18, 2018: Chemosphere
Hong Wang, Lei Nie, Yan Xu, Miao Li, Yan Lv
Six traffic-emitted metals (Cr, Zn, Cu, Cd, Pb, and Ni) were determined in soil and plants for below- and aboveground parts along different distances from highway to evaluate their behavior and uptake by Carex meyeriana Kunth and Thelypteris palustris var. pubescens Fernald growing in turfy swamps. The results indicated that the different plant tissues showed significantly different levels of metal content. Nonlinear regression analysis indicated that metal contents leveled off at constant values before they decreased as the distance from the roadside increased...
April 26, 2018: Environmental Science and Pollution Research International
Hernán Ricardo Hadad, María de Las Mercedes Mufarrege, Gisela Alfonsina Di Luca, María Alejandra Maine
The aim of this work was to study Cr, Ni, Zn, and P bioaccumulation in different compartments of Typha domingensis plants and sediment in a free-water surface constructed wetland for the treatment of a metallurgical effluent for 5 years. Removal efficiencies were satisfactory. To increase metal tolerance, its transport from belowground to aboveground tissues is reduced, being metal concentrations in the roots and rhizomes significantly higher than in the aerial and submerged parts of leaves. Regarding belowground tissues, metals were retained in the roots, while P was mainly accumulated in rhizomes...
April 25, 2018: Environmental Science and Pollution Research International
Carolina P Dahmer, Allison Rutter, Barbara A Zeeb
Point Pelee National Park (PPNP) is highly contaminated with dichlorodiphenyltrichloroethane (DDT) due to the historical use of this persistent organochlorine pesticide. Hydroxypropyl-β-cyclodextrin (HPβCD) has previously been investigated for its role in the remediation of polyaromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). In the present study, HPβCD's ability to promote DDT microbial degradation, enhance DDT phytoextraction by two native grasses (Schizachyrium scoparium and Panicum virgatum), and increase DDT bioavailability to redworms (Eisenia fetida) was investigated...
May 12, 2018: International Journal of Phytoremediation
Daihua Ye, Tingxuan Li, Zicheng Zheng, Xizhou Zhang, Haiying Yu
Understanding plant phosphorus (P) assimilation and its root morphological responses is important to acquire an ideal material for remediation of P-enriched environments. Pot experiments were conducted to explore P accumulation and root morphological traits in a mining ecotype (ME) and non-mining ecotype (NME) of Polygonum hydropiper under different organic P (Po) sources (G1P, AMP, ATP, IHP) and inorganic P (Pi) source (KH2 PO4 ), and also their responses to a high level of IHP for different growth periods...
May 12, 2018: International Journal of Phytoremediation
Ken-Ichi Hatano, Takeshi Yamatsu
Previously, it has been suggested that melanoidin-like products (MLP) from sugarcane molasses may accelerate copper phytoextraction. In this study, we evaluated the facilitatory effect of MLP on phytoextraction in a medium including cadmium or lead, the concentrations of which were adjusted around the regulation values of the Soil Contamination Countermeasures Act in Japan. Three Brassica species were tested based on their fast growth, high biomass productivity, and high heavy metal absorption. Both biomass and lead uptake in the nutrient medium with 1 mM lead nitrate were significantly increased by the addition of MLP, and almost all of the lead was accumulated in the root tissue...
May 12, 2018: International Journal of Phytoremediation
Irina Shtangeeva, Paavo Perämäki, Matti Niemelä, Evgeny Kurashov, Yulia Krylova
The aim of the research was to study a removal of polycyclic aromatic hydrocarbons (PAHs) and phytoextraction of bromine (Br) from contaminated soils. The experiments using pea and wheat seedlings as potential candidates for soil remediation were performed. The soil for the experiments was collected from a site slightly contaminated by some PAHs. Before planting, the soil was exposed to 20 mg of Br/kg of soil. In the soil taken from rhizosphere of pea and wheat, the concentrations of many PAHs decreased up to 7 times compared to the concentrations of the compounds in the initial soil...
May 12, 2018: International Journal of Phytoremediation
Silke Neu, Ingo Müller, Rolf Herzig, E Gert Dudel
Multielement-contaminated agricultural land requires the adaptation of agronomic practices to meet legal requirements for safe biomass production. The incorporation of bioenergy plants with, at least, moderate phytoextraction capacity into crop rotations with cereals can affect trace elements (TE) phytoavailability and, simultaneously, constitute economic revenues for farmers outside the food or forage sector. Hence, in a crop rotation pot study sunflower (Helianthus annuus L.), modified for high biomass and TE accumulation by chemical mutagenesis, was compared to winter oilseed rape (Brassica napus L...
May 12, 2018: International Journal of Phytoremediation
Waheed Ullah Khan, Nasim Ahmad Yasin, Sajid Rashid Ahmad, Aamir Ali, Aqeel Ahmad, Waheed Akram, Muhammad Faisal
The current study was performed to assess the effect of Burkholderia cepacia CS8 on the phytoremediation of cadmium (Cd) by Catharanthus roseus grown in Cd-contaminated soil. The plants cultivated in Cd amended soil showed reduced growth, dry mass, gas-exchange capacity, and chlorophyll contents. Furthermore, the plants exhibited elevated levels of malondialdehyde (MDA) and hydrogen peroxide (H2 O2 ) under Cd stress. The bacterized plants showed higher shoot length, root length; fresh and dry weight. The improved stress tolerance in inoculated plants was attributed to the reduced quantity of MDA and H2 O2 , enhanced synthesis of protein, proline, phenols, flavonoids, and improved activity of antioxidant enzymes including peroxidase, superoxide dismutase, ascorbate peroxidase, and catalase...
May 12, 2018: International Journal of Phytoremediation
Zhu Li, Mingyun Jia, Peter Christie, Shafaqat Ali, Longhua Wu
Biochars and hyperaccumulators have been widely used for the remediation of trace metal contaminated soils through immobilization and phytoextraction. These two options have rarely been used simultaneously despite their potential to achieve a greater decline in trace metal availability and higher removal efficiency in polluted soils. This study investigated the combined effects of biochar and the cadmium/zinc (Cd/Zn) hyperaccumulator Sedum plumbizincicola in a pot experiment and examined the effect of an antibiotic (oxytetracycline, OTC) in an acid soil spiked with Cd/Zn alone and with OTC...
April 13, 2018: Chemosphere
Aliaksandr Kolbas, Natallia Kolbas, Lilian Marchand, Rolf Herzig, Michel Mench
The potential use of a metal-tolerant sunflower mutant line for biomonitoring Cu phytoavailability, Cu-induced soil phytotoxicity, and Cu phytoextraction was assessed on a Cu-contaminated soil series (13-1020 mg Cu kg-1 ) obtained by fading a sandy topsoil from a wood preservation site with a similar uncontaminated soil. Morphological and functional plant responses as well as shoot, leaf, and root ionomes were measured after a 1-month pot experiment. Hypocotyl length, shoot and root dry weight (DW) yields, and leaf area gradually decreased as soil Cu exposure rose...
April 2, 2018: Environmental Science and Pollution Research International
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