scholarly journals Influencing factors and prediction of arsenic concentration in Pteris vittata: A combination of geodetector and empirical models

2022 ◽  
Vol 292 ◽  
pp. 118240
Author(s):  
Weibin Zeng ◽  
Xiaoming Wan ◽  
Mei Lei ◽  
Gaoquan Gu ◽  
Tongbin Chen
Keyword(s):  
Influencing Factors ◽  
Arsenic Concentration ◽  
Empirical Models ◽  
Pteris Vittata

Study on Arsenic Removal in the Simulating Constructed Wetland

2013 ◽  
Vol 777 ◽  
pp. 386-389
Author(s):  
Jun Ying Zhao ◽  
Hua Ming Guo
Keyword(s):  
Constructed Wetland ◽  
Arsenic Removal ◽  
Early Stage ◽  
Arsenic Concentration ◽  
Pteris Vittata ◽  
Small Scale ◽  
Arsenic Content ◽  
Main Role ◽  
Batch Tests ◽  
Concentration Changes

Arsenic concentration changes in small-scale simulating constructed wetland composed with shale ceramic, zeolite, quartz sand andPteris vittatawere examined. During arsenic removal by the constructed wetlands, arsenic interception by the natural media played the main role in the early stage andPteris vittatauptake played the key role for arsenic removal in the later stable stage. When As (III) concentration in inflow was about 1 mg/L, the arsenic removal ratio by the two was between 22.2% and 66.6% and kept about 33% in the end. Arsenic average content in fronds and roots ofPteris vittataafter experiments were respectively 17610 and 2491 mg/kg. Transfer factor was 7.08. Compared with batch tests, arsenic content accumulated in plants increased significantly.

scholarly journals Arsenic phytoextraction and hyperaccumulation by fern species

2006 ◽  
Vol 63 (1) ◽  
pp. 90-101 ◽  
Author(s):  
Maria Isidoria Silva Gonzaga ◽  
Jorge Antonio Gonzaga Santos ◽  
Lena Qiying Ma
Keyword(s):  
Contaminated Soils ◽  
Arsenic Concentration ◽  
Cost Effective ◽  
Pteris Vittata ◽  
Major Step ◽  
Environmental Media ◽  
Screening Experiments ◽  
Adaptive Mechanisms ◽  
Fern Species ◽  
Pityrogramma Calomelanos

Arsenic (As) is an ubiquitous trace metalloid found in all environmental media. Its presence at elevated concentrations in soils derives from both anthropogenic and natural inputs. Arsenic is a toxic and carcinogenic element, which has caused severe environmental and health problem worldwide. Technologies currently available for the remediation of arsenic-contaminated sites are expensive, environmentally disruptive, and potentially hazardous to workers. Phytoextraction, a strategy of phytoremediation, uses plants to clean up contaminated soils and has been successfully applied to arsenic contaminated soils. It has the advantage of being cost-effective and environmentally friendly. A major step towards the development of phytoextraction of arsenic-impacted soils is the discovery of the arsenic hyper accumulation in ferns, first in Pteris vittata, which presented an extraordinary capacity to accumulate 2.3% arsenic in its biomass. Another fern, Pityrogramma calomelanos was found to exhibit the same hyperaccumulating characteristics. After that, screening experiments have revealed that the Pteris genus is really unique in that many species have the potential to be used in phytoextraction of arsenic. In general, these plants seem to have both constitutive and adaptive mechanisms for accumulating or tolerating high arsenic concentration. In the past few years, much work has been done to understand and improve the hyperaccumulating capability of these amazing plants. In particular, the field of molecular biology seems to hold the key for the future of the phytoremediation.

Distribution and Influencing Factors of Arsenic in Groundwater - Based on the Riverside Groundwater Source Field of some Northern City, China

2011 ◽  
Vol 71-78 ◽  
pp. 2953-2956
Author(s):  
Ying Jie Sun ◽  
Gang Wang ◽  
Mou Lu ◽  
Bo Fu ◽  
Ying Chen ◽  
...  
Keyword(s):  
Water Level ◽  
Influencing Factors ◽  
Yellow River ◽  
Arsenic Concentration ◽  
Vertical Direction ◽  
Source Field ◽  
Arsenic In Groundwater ◽  
Groundwater Samples ◽  
Groundwater Source ◽  
Northern City

The purpose of this study was to evaluate the geological and anthropogenic aspects of As pollution in groundwater of Northern Suburb Groundwater Source Field in Zhengzhou, China. Based on the groundwater samples of 78 wells in the groundwater source field of some northern city in China, distribution and influencing factors of arsenic were analyzed. The results show that: in the horizontal direction, the arsenic concentration outside beach is higher than that inside; the arsenic concentration presents the regional and continual distribution in the east area and west area, respectively. The arsenic concentration was reduced along with the increase of depth in the vertical direction. Arsenic concentration has significantly correlations with pH, Fe, Mn, SO42- and the water level of Yellow River, respectively (r = 0.5011, 0.7302, 0.6231, -0.5222 and -0.7671), which are the primary influencing factors on the mobilization and transform of arsenic in the groundwater.

scholarly journals Phytoextraction efficiency of Pteris vittata grown on a naturally As-rich soil and characterization of As-resistant rhizosphere bacteria

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. L. Antenozio ◽  
G. Giannelli ◽  
R. Marabottini ◽  
P. Brunetti ◽  
E. Allevato ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Central Italy ◽  
Arsenic Concentration ◽  
Optical Emission ◽  
Pteris Vittata ◽  
Emission Spectrometry ◽  
Bacterial Strains ◽  
Volcanic Origin ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

AbstractThis study evaluated the phytoextraction capacity of the fern Pteris vittata grown on a natural arsenic-rich soil of volcanic-origin from the Viterbo area in central Italy. This calcareous soil is characterized by an average arsenic concentration of 750 mg kg−1, of which 28% is bioavailable. By means of micro-energy dispersive X-ray fluorescence spectrometry (μ-XRF) we detected As in P. vittata fronds after just 10 days of growth, while a high As concentrations in fronds (5,000 mg kg−1), determined by Inductively coupled plasma-optical emission spectrometry (ICP-OES), was reached after 5.5 months. Sixteen arsenate-tolerant bacterial strains were isolated from the P. vittata rhizosphere, a majority of which belong to the Bacillus genus, and of this majority only two have been previously associated with As. Six bacterial isolates were highly As-resistant (> 100 mM) two of which, homologous to Paenarthrobacter ureafaciens and Beijerinckia fluminensis, produced a high amount of IAA and siderophores and have never been isolated from P. vittata roots. Furthermore, five isolates contained the arsenate reductase gene (arsC). We conclude that P. vittata can efficiently phytoextract As when grown on this natural As-rich soil and a consortium of bacteria, largely different from that usually found in As-polluted soils, has been found in P. vittata rhizosphere.

scholarly journals Effect of different fertilizer types on Arsenic removal capacity of two fern species

2014 ◽  
Vol 6 (1) ◽  
pp. 42-46
Author(s):  
Thi Kim Anh Bui
Keyword(s):  
Environmental Factors ◽  
Plant Growth ◽  
Arsenic Removal ◽  
Organic Fertilizer ◽  
Arsenic Concentration ◽  
Pteris Vittata ◽  
Removal Capacity ◽  
Fern Species ◽  
Pityrogramma Calomelanos ◽  
Hyperaccumulator Plant

More and more attention has been paid to the research on phytoremediation and hyperaccumulators. Arsenic (As) uptake by hyperaccumulator plant species depends on many different environmental factors. Fertilizer is one of the most important factors because the plant growth needs nutrients. In this study, the pot experiments were conducted in 12 weeks to understand the effect of different fertilizer on As removal capacity of Pityrogramma calomelanos and Pteris vittata. The results showed that, Arsenic concentration in the frond is higher than that in the root of the fern. As removal efficiency of the ferns from the soil amended with both inorganic and organic fertilizer is highest. The ferns removed As content in soil up to 7.4 and 12.6 mg As per kg DW soil, respectively. For the control experiments without adding fertilizers, As removal ability of the ferns from the soil is lowest that was only 2.1 mg As per kg DW soil. Trên thế giới đã và đang có nhiều nghiên cứu, ứng dụng phương pháp sử dụng thực vật để xử lý ô nhiễm, đặc biệt là các loài thực vật siêu tích tụ kim loại nặng. Sự tích lũy Asen (As) trong các loài thực vật siêu tích lũy phụ thuộc vào rất nhiều yếu tố môi trường và dinh dưỡng khác nhau. Phân bón là một trong những yếu tố quan trọng nhất vì sự phát triển cây rất cần chất dinh dưỡng. Trong nghiên cứu này, các thí nghiệm được tiến hành trong 12 tuần để đánh giá về ảnh hưởng của các loại phân bón khác nhau đến khả năng xử lý ô nhiễm As trong đất của dương xỉ. Kết quả thu được cho thấy, nồng độ As tích lũy trong phần thân của dương xỉ cao hơn rất nhiều so với phần rễ của cây. Hiệu quả loại bỏ As ra khỏi đất của dương xỉ trong các thí nghiệm bổ sung cả phân bón vô cơ và phân bón hữu cơ là cao nhất. Pityrogramma calomelanos và Pteris vittata có thể loại bỏ hàm lượng As trong 1 kg trọng lượng khô đất tương ứng lên đến 7,4 và 12,6 mg. Các công thức thí nghiệm đối chứng không bổ sung phân bón thì cho hiệu quả loại bỏ As ra khỏi đất là thấp nhất chỉ 2,1 mg As trên 1 kg trọng lượng khô đất.

scholarly journals Phytoremediation of a Highly Arsenic Polluted Site, Using Pteris vittata L. and Arbuscular Mycorrhizal Fungi

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1211
Author(s):  
Simone Cantamessa ◽  
Nadia Massa ◽  
Elisa Gamalero ◽  
Graziella Berta
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Field Experiments ◽  
Arsenic Concentration ◽  
Arbuscular Mycorrhizal ◽  
Pteris Vittata ◽  
Industrial Site ◽  
In Situ Experiment ◽  
Positive Effects ◽  
Pteris Vittata L

Phytoremediation is a promising green technique for the restoration of a polluted environment, but there is often a gap between lab and field experiments. The fern, Pteris vittata L., can tolerate a high soil arsenic concentration and rapidly accumulate the metalloid in its fronds. Arbuscular mycorrhizal fungi (AMF) are mutualistic fungi that form a symbiosis with most land plants’ roots, improve their growth, and induce stress tolerance. This paper reports the results obtained using P. vittata inoculated with AMF, to extract Arsenic (As) from an industrial site highly contaminated also by other pollutants. Two experiments have been performed. In the first one, AMF colonized ferns were grown for two years under controlled conditions in soil coming from the metallurgic site. Positive effects on plant health and As phytoextraction and accumulation were detected. Then, considering these results, we performed a three year in situ experiment in the industrial site, to assess the remediation of As at two different depths. Our results show that the colonization of P. vittata with AMF improved the remediation process of As with a significant impact on the depth 0–0.2 m.

scholarly journals Characterization of rhizospheric and non rhizospheric bacteria from arsenic contaminated soil

2019 ◽  
Vol 8 (1) ◽  
pp. 9-15
Author(s):  
Umma Mayda ◽  
Nazifa Tasnim ◽  
Rasheda Yasmin Shilpi
Keyword(s):  
Contaminated Soil ◽  
Soil Bacteria ◽  
Arsenic Concentration ◽  
Pteris Vittata ◽  
Experimental Result ◽  
Rhizospheric Soil ◽  
Rhizospheric Bacteria ◽  
Number Of Microorganisms ◽  
Number Of Bacteria

The rhizosphere soil has a large and various number of microorganisms especially the bacteria. This experiment was conducted at the department of Botany, Jahangirnagar University, Savar, to investigate the rhizospheric and non-rhizospheric bacteria from arsenic contaminated soil. Pteris vittata was treated with different concentrations of arsenic ranges from 5000 to 10000 ppm in the pot. The experimental result indicated that the negative correlation between arsenic concentration and rhizospheric soil bacteria. Highest number of bacteria (8.6×108 cfu/g) were found in rhizospheric soil (control), while lowest numbers of bacteria (4.0×107 cfu/g) were found in the non-rhizospheric soil with 10000 ppm arsenic. Thirty bacteria were isolated from rhizospheric and non-rhizospheric soil samples. Out of thirty samples Bacillus and Pseudomonas were selected on the basis of morphological and biochemical nature. The present study concluded that the arsenic has an adverse effect on the growth of rhizospheric soil bacteria. Jahangirnagar University J. Biol. Sci. 8(1): 9-15, 2019 (June)

Arsenic Uptake from Arsenic-Contaminated Water Using Pteris vittata L. and Polystichum craspedosorum

2013 ◽  
Vol 295-298 ◽  
pp. 1139-1143 ◽  
Author(s):  
Jun Ying Zhao ◽  
Hua Ming Guo
Keyword(s):  
Arsenic Concentration ◽  
Pteris Vittata ◽  
Contaminated Water ◽  
Arsenic Uptake ◽  
Pteris Vittata L

The effects of arsenic uptake by Pteris vittata L. and Polystichum craspedosorum were examined. Pteris vittata L. were exposed hydroponically to 4Italic textItalic text.8 mg/L As(V) for 16 d and 4.05 mg/L As(V) for 24 h. Arsenic concentration in solution respectively decreased to 1.61 mg/L and 3.86mg/L. TF after 24 h was 0.81(1). Polystichum craspedosorum were exposed hydroponically to 3.26 mg/L As(V) for 20 days. As concentration decreased to 2.83mg/L after 16d and then increased slowly in the later four days. As contents in roots and fronds of Polystichum craspedosorum were 147 mg/kg and 90mg/kg. The results indicated that Polystichum craspedosorum was not good candidate for removal As(V) from water compared with Pteris vittata L..

Investigation of the Accumulation Effect of Pteris vittata L. in Triphenylarsine-Contaminated Soil

2014 ◽  
Vol 955-959 ◽  
pp. 2007-2013
Author(s):  
Ting Zhou ◽  
Li Juan You ◽  
Meng Wei Han ◽  
Xue Feng Wang ◽  
Hong Juan Wang ◽  
...  
Keyword(s):  
Bioconcentration Factor ◽  
Arsenic Concentration ◽  
Inorganic Arsenic ◽  
Pteris Vittata ◽  
Culture Solution ◽  
Stress Effect ◽  
Water Culture ◽  
Organic Arsenic ◽  
Pteris Vittata L

The principle and mechanism of triphenylarsine (TPA) accumulation of arsenic hyper-accumulator-Pteris vittata L was investigated to remediate soil contaminated by abandoned arsenical chemical weapons in somewhere in Jilin Province, by means of soil and water culture in the greenhouse. Through analysis of changes in concentrations of total arsenic and TPA in Pteris vittata L. and in inorganic arsenic concentration of water culture solution, observation of apparent characteristics and determination of organic arsenic forms in Pteris vittata L., results show that Pteris vittata L. could accumulate TPA in soil when the concentration of TPA in soil is less than 150 mg/kg, and the concentration of arsenic in Pteris vittata L. increase initially and then decrease with TPA concentration increasing. When Pteris vittata L. had grown 3 months, the TPA concentration reaches its maximum, i.e. 316.85mg/kg (dry), while, the bioconcentration factor (BCF) decreases gradually. Although Pteris vittata L. still could accumulate TPA after TPA concentration reached more than 150 mg/kg, arsenic concentration in Pteris vittata L. significantly reduce due to stress effect of TPA.

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