Abstract:
:The effects of chelating agents on heavy metal activation in Cd- and Pb-contaminated soils were studied through a dynamic activation experiment. An evaluation method for the measuring comprehensive suitability of chelating agent was established by calculating indexes for the degree of activation effect suitability and activated heavy metals' half-life suitability. The following results were obtained: in Cd- and Pb-contaminated soils, heavy metal activation effects reached or approached maximum activating effects within 1 d and subsequently showed different levels of decline in all chelating agent treatment conditions. Declines in activation effects similarly subjected to the law of exponents over time and to the goodness of fit in DTPA, NTA, and GLDA ranged from 0.80 to 0.98. For Cd- and Pb-contaminated soils, chelating agents' levels of comprehensive suitability (H) were recorded as follows: NTA(1.40) > GLDA(1.31) > DTPA(1.14) > EDTA(1.00) > EDDS(0.14) > CA(0.06) and GLDA(1.56) > DTPA(1.48) > EDTA(1.00) > NTA(0.78) > EDDS(0.26) > CA (0.02). GLDA and DTPA are both suitable for Cd and Pb phytoextraction. Moreover, NTA and GLDA are optimal chelating agents for Cd and Pb phytoextraction, respectively.
journal_name
Int J Phytoremediationjournal_title
International journal of phytoremediationauthors
Mai X,Luo D,Wei L,Liu Y,Huang X,Wu Q,Yao G,Liu G,Liu Ldoi
10.1080/15226514.2019.1633262subject
Has Abstractpub_date
2019-01-01 00:00:00pages
1415-1422issue
14eissn
1522-6514issn
1549-7879journal_volume
21pub_type
杂志文章abstract::A pilot-scale, engineered poplar tree vadose zone system was utilized to determine effluent nitrate (NO3(-)) and ammonium concentrations resulting from intermittent dosing of a synthetic wastewater onto sandy soils at 4.5°C. The synthetic wastewater replicated that of an industrial food processor that irrigates onto s...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2014.987371
更新日期:2015-01-01 00:00:00
abstract::To initiate the creation of phytoextraction cultivars, plants were selected from 60 populations of N. caerulescens for their high shoot biomass or Cd, Ni, and Zn concentrations. They were self-pollinated, and the selection and fixation were continued for three generations in greenhouse conditions. Selected plants show...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2018.1537250
更新日期:2019-01-01 00:00:00
abstract::Enhanced phytoremediation adding biodegradable amendments like low molecular weight organic acids and surfactants is an interesting area of current research to overcome the limitation that represents low bioavailability of pollutants in soils. However, prior to their use in assisted phytoremediation, it is necessary t...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2014.964837
更新日期:2015-01-01 00:00:00
abstract::This study attempts to evaluate the capacity of wetland plants' ability to dissipate phenanthrene (PHE) under waterlogged conditions. The results indicate that Typha latifolia and Vetiveria zizanioides may efficiently degrade PHE, and were much more effective when under combined plant cultivation with the inoculation ...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2017.1301877
更新日期:2017-10-03 00:00:00
abstract::The accumulation, chemical speciation and distribution of polychlorinated biphenyls (PCBs) were investigated in various parts of alfalfa. Moreover, the adsorption characteristics for PCB 28 by alfalfa and the influencing factors of the adsorption characteristics were studied. There were different degrees of PCB accumu...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2017.1284749
更新日期:2017-08-03 00:00:00
abstract::The aim of this study was to demonstrate the potential for aquatic plants and their associated microbes to bioremediate wetland sites contaminated with 2,4,6-trinitrotoluene (TNT). The transformation of TNT was studied using both wild and axenically grown isolates of Myriophyllum aquaticum (parrot feather). Difference...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226510600678431
更新日期:2006-01-01 00:00:00
abstract::Due to the low phytoavailability of some heavy metals (HMs), a prolonged period is required when phytoextraction is used to remove these HMs from contaminated soils. The use of chelants and other chemical compounds are often used to increase the phytoavailability of the HMs for plant uptake. Negative effects of chemic...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2014.883493
更新日期:2015-01-01 00:00:00
abstract::The objective of this research was to compare the potential of native plants for the phytoaccumulation of heavy metals (HM). Thirteen predominant plant species (including trees, bushes and grasses) namely Ricinus communis, Ipomoea carnea, Cannabis sativa, Parthenium hysterophorus, Acacia nilotica, Dalbergia sissoo, Ac...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2013.862208
更新日期:2015-01-01 00:00:00
abstract::The effect of mercury (Hg) on the growth and survival of parsley (Petroselinum crispum) was explored at various treatments. The plants were grown in pots having Hoagland's solution to which various Hg treatments were applied and placed under greenhouse conditions. The treatments were: no metal applied (control) and si...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2015.1109590
更新日期:2016-01-01 00:00:00
abstract::The influence of flow velocity on the uptake of cadmium, copper, lead, and zinc by hydroponically grown soft stem bulrush (Scirpus validus) was investigated. The roots of the plants were exposed to a continually recycled, nutrient enriched, synthetic stormwater. Plants were divided into groups and the roots of each gr...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2013.773274
更新日期:2014-01-01 00:00:00
abstract::This study was aimed to investigate the influence of Elodea canadensis shoots on surrounding water pH in the presence of cadmium and the effect of plant-induced pH on cadmium uptake. The pH change in the surrounding nutrient solution and Cd uptake by Elodea shoots were investigated after cultivation of various plant d...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226511003753987
更新日期:2011-01-01 00:00:00
abstract::Phytoscreening has been demonstrated at a variety of sites over the past 15 years as a low-impact, sustainable tool in delineation of shallow groundwater contaminated with chlorinated solvents. Collection of tree cores is rapid and straightforward, but low concentrations in tree tissues requires sensitive analytics. S...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2015.1045127
更新日期:2015-01-01 00:00:00
abstract::Heavy metal contaminated agricultural soils are one of the most important constraints for successful cultivation of crops. The current research was conducted to evaluate the role of potassium (K) on plant growth and amelioration of cadmium (Cd) stress in Gladiolus grandiflora under greenhouse conditions. G. grandiflor...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2017.1374337
更新日期:2018-02-23 00:00:00
abstract::In constructed wetland (CW) ecology, plants play a vital role in wastewater treatment. The plants provide an adequate surface to various microorganisms, transfers oxygen and uptake nutrients to treat wastewater. This study deals with the treatment of greywater by using vertical flow constructed wetland system (VFCW). ...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2020.1715918
更新日期:2020-01-01 00:00:00
abstract::Plants on contaminated mining soils often show a reduced growth due to nutrient depletion as well as trace elements (TEs) toxicity. Since those conditions threat plant's survival, plant growth-promoting rhizobacteria (PGPRs), such as rhizobia, might be of crucial importance for plant colonization on TE-contaminated so...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2016.1207600
更新日期:2017-02-01 00:00:00
abstract::This study deals with the open pond (OP) pilot scale treatment of cassava effluent and enhancement of Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) enzyme through CO2 utilization by the microalga, Acutodesmus obliquus RDS01. The cassava effluent treatment (ET) revealed maximum reduction of ammonia (96.8%),...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2019.1633255
更新日期:2019-01-01 00:00:00
abstract::A pot culture experiment was conducted for 90 days for the evaluation of oil and total petroleum hydrocarbon (TPH) degradation in vegetated and non-vegetated treatments of real-field oil-sludge-contaminated soil. Five different treatments include (T1) control, 2% oil-sludge-contaminated soil; (T2), augmentation of mic...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2017.1328388
更新日期:2017-12-02 00:00:00
abstract::Wild plant species from three deserted antimony (Sb) mine areas in southern China were collected to measure eight metal(loid)s. Antimony, As (arsenic), Cd (cadmium), Cr (chromium), Cu (copper), Ni (nickel), Pb (lead), and Zn (zinc) concentrations in plants and soil were analyzed. The soils of the mining area was weakl...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2020.1857685
更新日期:2020-12-12 00:00:00
abstract::Phytoremediation potential of Lemna gibba was evaluated for chromium (Cr) and cadmium (Cd) under laboratory conditions for variable metal load of 1 mg/l, 3 mg/l, 5mgl, 7 mg/l and 9 mg/l, respectively, for 7 and 15 days of treatment period. Effects of both metals on structural attributes of L. gibba were also analyzed ...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2018.1522614
更新日期:2019-01-01 00:00:00
abstract::The heavy metals and deleterious element (Pd, Cd, Cu, As, and Hg) in Chinese peony (Paeonia lactiflora Pall.) were determined by Tessier's sequence extraction method. Pb mainly existed in carbonate fraction. The main fraction of Cd in different tissues and different month is quite different. Cu mainly exists as exchan...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2019.1633261
更新日期:2019-01-01 00:00:00
abstract::In the present work, Sycamore (Platanus occidentalis) tree seed pod fibers (STSPF) and nano-scale zero valent iron particles (nZVI) immobilized in Sycamore tree seed pod fibers (nZVIʘSTSPF) were produced. This biosorbent has been utilized as a viable effective biosorbent in the removing of methylene blue hydrate (MB),...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2019.1606786
更新日期:2019-01-01 00:00:00
abstract::Interactive effects of arsenate (As (V)) and phosphate (Pi) were investigated under hydroponic culture. Arsenic concentrations in fronds and roots of Chinese brake fern (Pteris vittata L.) significantly (p < 0.05) increased with increasing As (V), but decreased (p < 0.05) with increasing Pi in nutrient solution. Phosp...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226510903051732
更新日期:2010-07-01 00:00:00
abstract::A novel nanoscale zero-valent iron-Sargassum swartzii (nZVI-SS) biocomposite was synthesized and evaluated for its ability to adsorb crystal violet (CV) from aqueous solutions. Involvement of various functional groups of the biosorbent in preferential adsorption of cationic dye was observed using Fourier transform inf...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2016.1207607
更新日期:2017-03-04 00:00:00
abstract::The practical applicability of heavy metal (HM) phytoextraction depends heavily on its duration. Phytoextraction duration is the main cost factorfor phytoextraction, both referring to recurring economic costs during phytoextraction and to the cost of the soil having no economic value during phytoextraction. An experim...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226510701232773
更新日期:2007-03-01 00:00:00
abstract::Prediction of heavy-metal concentration in the edible parts of economic crops, based on their concentration in soil and other environmental factors, is urgently required for human risk assessment. The present investigation aimed to develop regression models for predicting heavy-metal concentration in wheat plants via ...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2020.1725866
更新日期:2020-01-01 00:00:00
abstract::Phytoextraction is an established method of removal of heavy metals from contaminated soils worldwide. Phytoextraction is most efficient if local plants are used in the contaminated site. We propose that Prosopis pubescens (Screw bean mesquite) would be a successful phytoextractor of copper in our local soils. In orde...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2013.810582
更新日期:2014-01-01 00:00:00
abstract::Shrub willows have demonstrated potential in many types of phytoremediation applications. Hydroponic culture was used to assess arsenic (As) tolerance and uptake by four shrub willow clones and to determine the effects of phosphate on As accumulation. After 4 weeks of growth in the absence of As, plants received one o...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226510802115000
更新日期:2008-11-01 00:00:00
abstract::The sorption behavior of biochar derived from green seaweed (Ulva reticulata) toward arsenic(V) ions was explored in both batch and continuous modes. The pH edge experiments indicated optimum arsenic(V) sorption observed at pH 4, with maximum sorptional capacity of 7.67 mg/g through isotherm experiments. The kinetic e...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2019.1658710
更新日期:2020-01-01 00:00:00
abstract::Metal decontamination and leaching alleviation capacity of Eucalyptus globulus with and without electric field were investigated using ICP-MS. The biomass production of the chosen plant increased from 0.87 kg in planting control without electrokinetic treatment to 1.16 and 1.42 kg in experiments with electric field su...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/15226514.2018.1501342
更新日期:2019-01-01 00:00:00
abstract::This study deals with the use of three chromium-resistant bacterial strains (Ochrobactrum intermedium CrT-1, Brevibacterium CrT-13, and CrM-1) in conjunction with Eichornia crassipes for the removal of toxic chromium from wastewater. Bacterial strains resulted in reduced uptake of chromate into inoculated plants as co...
journal_title:International journal of phytoremediation
pub_type: 杂志文章
doi:10.1080/16226510500327111
更新日期:2005-01-01 00:00:00