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International Journal of Phytoremediation

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https://www.readbyqxmd.com/read/29053385/full-scale-horizontal-subsurface-flow-constructed-wetlands-to-treat-domestic-wastewater-by-juncus-acutus-and-cortaderia-selloana
#1
Fulya Aydın Temel, Esin Avcı, Yüksel Ardalı
In the present study, a full scale horizontal subsurface flow constructed wetland was designed, constructed and operated to treat domestic wastewater of Kızılcaören village in Samsun city of Turkey. The total surface area of HSFCW was divided into equal parts. The effects of Juncus acutus L. and Cortaderia selloana (Schult.Schult.f.)Asch.&Graebn. on pollutants removal in HSFCWs were evaluated with the meteorological factors. The average removal efficiencies of J. acutus and C. selloana were determined as 60...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053371/phytoremediation-capabilities-of-spirodela-polyrhiza-salvinia-molesta-and-lemna-sp-in-synthetic-wastewater-a-comparative-study
#2
Yin Sim Ng, Derek Juinn Chieh Chan
Macrophytes have been used to mitigate eutrophication and upgrade effluent quality via their nutrient removal capability. However, the available data are influenced by factors such as microbial activities, weather, and wastewater quality, making comparison between nutrient removal performance of different macrophytes almost impossible. In this study, phytoremediation by Spirodela polyrhiza, Salvinia molesta and Lemna sp. were carried out axenically in synthetic wastewater under controlled condition to precisely evaluate nutrient removal efficiency of NO3(-)-N, PO4(3-), NH3-N, COD and pH in the water sample...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053368/phytostabilization-potential-of-ornamental-plants-grown-in-soil-contaminated-with-cadmium
#3
Peng Zeng, Zhaohui Guo, Xia Cao, Xiyuan Xiao, Yanan Liu, Lei Shi
In a greenhouse experiment, five ornamental plants, Osmanthus fragrans (OF), Ligustrum vicaryi L. (LV), Cinnamomum camphora (CC), Loropetalum chinense var. rubrum (LC), and Euonymus japonicas cv. Aureo-mar (EJ), were studied for the ability to phytostabilization for Cd-contaminated soil. The results showed that these five ornamental plants can grow normally when the soil Cd content is less than 24.6 mg·kg(-1). Cd was mainly deposited in the roots of OF, LV, LC and EJ which have grown in Cd-contaminated soils, and the maximum Cd contents reached 15...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053367/availability-and-zinc-accumulation-in-forage-grasses-grown-in-contaminated-soil
#4
Bárbara O Nardis, Enilson B Silva, Paulo H Grazziotti, Luís R F Alleoni, Leônidas C A Melo, Múcio M M Farnezi
Zinc is an important micronutrient to plant growth, but when present in large quantities it can become a toxic element to plants. This study was aimed to evaluate the growth, concentration, accumulation and availability of Zn to forage grasses (Megathyrsus maximus cvs. Aruana and Tanzania, Urochloa brizantha cvs. Xaraés and Marandu and Urochloa decumbens cv. Basilisk) cultivated in Zn contaminated soils. The experiments were conducted under greenhouse conditions over a 90-day evaluation period, and Zn rates were 0, 100, 300 and 900 mg kg(-1) of soil...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053366/heavy-metal-pb-accumulation-in-metallophytes-as-influenced-by-the-variations-in-rhizospheric-and-non-rhizospheric-soils-physico-chemical-characteristics
#5
Sifau A Adejumo, Sarita Tiwari, Vilas Shinde, Bijaya Ketan Sarangi
Activities at root-soil interface determine the solubility and uptake of metals by plants. Metal accumulation in plant species (Imperata cylindrical, Cynodon dactylon, Eleucine indica, Gomphrena celosoides, Sporobolus pyramidalis, Chromolaena odorata and Rhynchospora corymbosa) growing on Pb contaminated site as influenced by variations in physico-chemical characteristics, dissolved organic matter (DOM), Pb fractionation and different functional groups (using Fourier Transmittance Infra-red) of rhizospheric and non-rhizospheric soils was assessed...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053353/effect-of-two-biodegradable-chelates-on-metals-uptake-translocation-and-biochemical-changes-of-lantana-camara-growing-in-fly-ash-amended-soil
#6
Shikha Kumari Pandey, Tanushree Bhattacharya
The present work had two purposes firstly to evaluate the potential of Lantana Camara for phytoextraction of heavy metals from fly ash amended soil and to assess the suitability of a proper biodegradable chelating agent for chelate assisted phytoextraction. Plants were grown in manure mixed soil amended with various concentration of fly ash. Two biodegradable chelating agents were added (EDDS and MGDA) in the same dose separately before maturation stage. Sampling was done at different growing stages. The plant took up metal in different plant parts in the following order: for Cu, and Zn leaf >root >stem, for Cr and Mn leaf>stem >root, for Ni root >leaf>stem and for Pb root≈leaf>stem respectively...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053352/bioaccumulation-and-rhizofiltration-potential-of-pistia-stratiotes-l-for-mitigating-water-pollution-in-the-egyptian-wetlands
#7
Tarek M Galal, Ebrahim M Eid, Mohammed A Dakhil, Loutfy M Hassan
The bioaccumulation and rhizofiltration potential of P. stratiotes for heavy metals were investigated to mitigate water pollution in the Egyptian wetlands. Plant and water samples were collected monthly through nine quadrats equally distributed along three sites at Al-Sero drain in Giza Province. The annual mean of the shoot biomass was 10 times that of the root. The concentrations of shoot heavy metals fell in the order: Fe > Mn > Cr > Pb > Cu > Zn > Ni > Co > Cd, while that of the roots were: Fe > Mn > Cr > Pb > Zn > Ni > Co > Cu > Cd...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053351/cadmium-accumulation-and-main-rhizosphere-characteristics-of-seven-french-marigold-tagetes-patula-l-cultivars
#8
Ruilian Sun, Qianqian Sun, Renqing Wang, Lidong Cao
The study was conducted to determine Cd accumulation and Cd fraction in the rhizosphere soil of seven Tagetes patula cultivars (Little Hero Orange, Durango Yellow, Janie Yellow Bright, Lucifer Yellow, Hero Flame, Hongyun Red, Konghuang Yellow). T. patula cultivars showed strong tolerance and accumulation to Cd. The highest Cd concentration (273.77 mg kg(-1)) in shoots was observed in Little Hero Orange when treated with Cd100. For most cultivars, Cd treatments significantly affected rhizosphere pH values, but had a slight effect on dissolved organic carbon (DOC)...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053350/melatonin-affects-the-growth-and-cadmium-accumulation-of-malachium-aquaticum-and-galinsoga-parviflora
#9
Yi Tang, Lijin Lin, Yongdong Xie, Ji Liu, Guochao Sun, Huanxiu Li, Ming'an Liao, Zhihui Wang, Dong Liang, Hui Xia, Xun Wang, Jing Zhang, Zejing Liu, Zhi Huang, Zhongqun He, Lihua Tu
Phytoremediation technology has become one of the main techniques for remediating soils polluted by heavy metals because it does not damage the environment, but heavy metal-tolerant plants have the disadvantages of low biomass and slow growth. A pot experiment was conducted to study the effects of melatonin (Mel) on growth and cadmium (Cd) accumulation in the Cd accumulator Malachium aquaticum and hyperaccumulator Galinsoga parviflora by spraying different concentrations of Mel on them. The results showed that shoot biomass, photosynthetic pigment content and antioxidant enzyme activity were increased in both species after Mel was sprayed on their leaves...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053349/essential-metal-and-metalloid-elements-in-the-philippi-horticultural-area-and-their-uptake-into-selected-vegetable-crops
#10
Marÿke Malan, Francuois Müller, Lincoln Raitt, Lilburne Cyster, Luc Brendonck
This study evaluated Co, Cr, Mn, Ni, Se, Sn and V status in the soils of the PHA, as well as the vegetables produced on these soils. We also determined the agronomic sources of these elements to the soils in the PHA. Farmyard manures applied as fertilizer amendments to the soils in the PHA were found to be the major agronomic sources of the metal and metalloid elements. These elements were however, retained in significantly higher concentrations in the soils compared to the concentrations found in the edible portions of the vegetable crops collected...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053348/use-of-bacterial-acc-deaminase-to-increase-oil-especially-poly-aromatic-hydrocarbons-phytoremediation-efficiency-for-maize-zea-mays-seedlings
#11
Rezvani Borujeni Samira, Khavazi Kazem, Asgharzadeh Ahmad, Rezvani Borujeni Iraj
Oil presence in soil, as a stressor, reduces phytoremediation efficiency through an increase in the plant stress ethylene. Bacterial 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, as a plant stress ethylene reducer, was employed to increase oil phytoremediation efficiency. For this purpose, the ability of ACC deaminase-producing Pseudomonas strains to grow in oil-polluted culture media and withstand various concentrations of oil and also their ability to reduce plant stress ethylene and enhance some growth characteristics of maize and finally their effects on increasing phytoremediation efficiency of poly aromatic hydrocarbons (PAHs) in soil were investigated...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053347/phytotoxicity-of-tin-mine-waste-and-accumulation-of-involved-heavy-metals-in-common-buckwheat-fagopyrum-esculentum-moench
#12
Jürgen Franzaring, Walter Damsohn, Andreas Fangmeier, Sonja Schlosser, Hannes Kurz, Philipp Büttner
Extraction and processing of cassiterite (SnO2) left large tailings with high concentrations of tin, tungsten, molybdenum and lithium. Information on the phytotoxicity of mine waste is important with regard to ecological hazards. Exposure studies help to identify plants useful for the stabilization of waste tips and the phytomining of metals. A greenhouse study was performed using a dilution series of mine waste and four crops, a halophytic and a metallophytic species to derive dose response curves. Based on effective doses for growth reductions, sensitivity increased in the following order: maize > common buckwheat > quinoa > garden bean...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053345/an-ecofriendly-approach-for-bioremediation-of-contaminated-water-environment-potential-contribution-of-a-coastal-seaweed-community-to-environmental-improvement
#13
Fatih Deniz, Elif Tezel Ersanli
High levels of heavy metals like copper ions in many industrial based effluents lead to serious environmental and health problems. Biosorption is a potential environmental biotechnology approach for biotreatment of aquatic sites polluted with heavy metal ions. Seaweeds have received great attention for their high bioremediation potential in recent years. However, the co-application of marine macroalgae for removal of heavy metals from wastewater is very limited. Thus, for the first time in literature, a coastal seaweed community composed of Chaetomorpha sp...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053344/efficient-bioremediation-of-tannery-wastewater-by-monostrains-and-consortium-of-marine-chlorella-sp-and-phormidium-sp
#14
Cindrella Das, Nagappa Ramaiah, Elroy Pereira, K Naseera
This study evaluated the bioremediation potential of two marine microalgae Chlorella sp. and Phormidium sp., both individually and in consortium, to reduce various pollutants in tannery wastewater (TW). The microalgae were grown in hazardous 100% TW for 20 days, and the reductions in biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (TN), total phosphorous (TP), chromium (Cr) and total dissolved solids (TDS) of the wastewater monitored periodically. Both marine isolates reduced the BOD and COD by ≥90% in the consortium and by over 80% individually...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053343/efficiency-of-opuntia-ficus-in-the-phytoremediation-of-a-soil-contaminated-with-used-motor-oil-and-lead-compared-to-that-of-lolium-perenne-and-aloe-barbadendis
#15
Luisa F Escobar-Alvarado, Mabel Vaca-Mier, Raymundo López-Callejas, Ma Neftalí Rojas-Valencia
Industrial pollutants such as heavy metals and hydrocarbons in soils represent a serious concern due to their persistence and negative effects on the environment, affecting cellular processes in living organisms and even causing mutations and cancer. The main objectives of this work were to evaluate the efficiency of Opuntia ficus in the phytoremediation of a soil polluted with used motor oil. Two other species, one with different and one with similar characteristics, relatively, were used for comparison purposes: Lolium perenne and Aloe barbadensis...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053342/lead-phytoextraction-from-printed-circuit-computer-boards-by-lolium-perenne-l-and-medicago-sativa-l
#16
María Esther Díaz Martínez, Rosalba Argumedo-Delira, Gabriela Sánchez-Viveros, Alejandro Alarcón, Libia Iris Trejo-Téllez
This work assessed the ability of Lolium perenne and Medicago sativa for extracting lead (Pb) from particulate printed circuit computer boards (PCB) mixed in sand with the following concentrations: 0.5, 1.0 and 1.5 g of PCB, and including a control treatment without PCB. The PCB were obtained from computers, and grinded in two particle sizes: 0.0594 mm (PCB1) and 0.0706 mm (PCB2). The PCB particle sizes at their corresponding concentrations were applied to L. perenne and M. sativa by using three experimental assays...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053341/water-potential-in-soil-and-atriplex-nummularia-phytoremediator-halophyte-under-drought-and-salt-stresses
#17
Hidelblandi Farias de Melo, Edivan Rodrigues de Souza, Brivaldo Gomes de Almeida, Maurizio Mulas
Atriplex nummularia is a halophyte widely employed to recover saline soils and was used as a model to evaluate the water potentials in the soil-plant system under drought and salt stresses. Potted plants grown under 70 and 37% of field capacity irrigated with solutions of NaCl and of a mixture of NaCl, KCl, MgCl2 and CaCl2 reproducing six electrical conductivity (EC): 0, 5, 10, 20, 30, and 40 dS m(-1). After 100 days, total water (Ψw, plant) and osmotic (Ψo, plant) potentials at predawn and midday and Ψo, soil, matric potential (Ψm, soil) and Ψw, soil were determined...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053340/the-beneficial-role-of-potassium-in-cd-induced-stress-alleviation-and-growth-improvement-in-gladiolus-grandiflora-l
#18
Nasim Ahmad Yasin, Malik Muhammad Zaheer, Waheed Ullah Khan, Sajid Rashid Ahmad, Aqeel Ahmad, Aamir Ali, Waheed Akram
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. grandiflora corms were sown in media contaminated with 0 (C), 50 (Cd50) and 100 (Cd100) mg Cd kg(-1) soil. The plants growing in Cd-contaminated media exhibited reduced gas exchange attributes, chlorophyll (Chl) contents, vegetative and reproductive growth as compared to control...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29039991/the-effect-of-olive-husk-extract-compared-to-the-edta-on-pb-availability-and-some-chemical-and-biological-properties-in-a-pb-contaminated-soil
#19
Seyed Sajjad Hosseini, Amir Lakzian, Akram Halajnia, Hossein Hammami
It was found that using chelating agents increases the efficiency of heavy metal extraction however they may have negative effects on soil ecosystem quality. A pot experiment was conducted in a completely randomized design with three replications in order to evaluate the effect of EDTA and Olive Husk Extract (OHE) on some chemical and biological properties of the Pb-contaminated soil. The experimental treatments included EDTA (2 g Na2EDTA salt per kg soil), OHE (2 g TDS of OHE per kg soil) and control (without the chelating agent)...
October 17, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29039973/amendment-of-vanadium-contaminated-soil-with-soil-conditioners-a-study-based-on-pot-experiments-with-canola-plants-brassica-campestris-l
#20
Wenjie Zhang, Jianguo Jiang, Kaimin Li, Tianran Li, De' An Li, Jiaming Wang
We performed pot experiments with canola plants (Brassica campestris L.) to evaluate the effect of eight soil conditioners on the amendment of vanadium (V)-contaminated soil based on analysis of the growth of canola plants and the uptake, bioaccumulation, and translocation of heavy metals. Tested soil conditioners included polyacrylamide (PAM), sepiolite, humic acid (HAC), peat, sludge compost (SC), bentonite, lime, and fly ash. Results from the analysis of the growth of canola plants and the analysis of variance showed that the best soil conditioners for V-contaminated soil were 0...
October 17, 2017: International Journal of Phytoremediation
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