Removal of Some Heavy Metals from Industrial Wastewater by Lemmna Minor

Al-Khafaji, Mahmoud Saleh; Al-Ani, Faris H.; Ibrahim, Alaa F.

doi:10.1007/s12205-017-1112-x

Cited by 30 publications

(11 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Results of a previous study reported that that removal efficiency of L. minor was 58%, 62%, and 68% for copper, lead, and nickel, respectively [41]. Similarly, L. minor removes nickel by 74 % and lead by 79% from the industrial wastewater stream [42]. [43].…”

Section: Removal Efficiencymentioning

confidence: 90%

Potential of Duckweed (Lemna minor) for the Phytoremediation of Landfill Leachate

Daud

Ali

Abbas

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

Phytoextraction of zinc, copper, lead, iron, and nickel from landfill leachate by duckweed (L. minor) was investigated every 3 days over a period of 2 weeks. Bioconcentration factor and removal efficiency were also calculated. Results of this study proved that L. minor significantly reduced the concentration of heavy metals in landfill leachate. Removal efficiency of L. minor, for all the metals, from landfill leachate was more than 70% with the maximum value for copper (91%). Reduction in chemical oxygen demand (COD) and biological oxygen demand (BOD) was observed by 39% and 47%, respectively. However, other physiochemical parameters like pH, total suspended solids, (TSS) and total dissolved solids (TDS) were reduced by 13%, 33%, and 41%, respectively. The value of bioconcentration factor (BCF) was less than 1 with the maximum figure for copper (0.84) and lead (0.81), showing that the plant is a moderate accumulator for these heavy metals. Duckweed (L. minor) appeared as a sustainable alternative candidate and is recommended for the treatment of landfill leachate waste water contaminants.

show abstract

Section: Removal Efficiencymentioning

confidence: 90%

Potential of Duckweed (Lemna minor) for the Phytoremediation of Landfill Leachate

Daud

Ali

Abbas

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…To be specific, this involves the formation of daughter fronds at the proximal ends of mother fronds in two meristematic regions (ibid). It is well known that duckweed accumulates heavy metals [21], including Cd [2,22]. Its physiological response to heavy metal stress [23] has been extensively studied in recent years, and researchers have started to examine its defence mechanisms against heavy metal toxicity [24].…”

Section: Journal Of Chemistrymentioning

confidence: 99%

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Xue

Wang

Huang

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

The response of duckweed (Lemna minor L.) roots to Cd and its chemical forms was investigated. The relative root growth rate and concentrations of Cd and its different chemical forms in the root, that is, ethanol-extractable (F E -Cd), HCl-extractable (F HClCd), and residual fractions (F r -Cd), were quantified. Weibull model was used to unravel the regression between the relative root elongation (RRL) with chemical forms of Cd. Parameters assessed catalase (CAT), peroxidases (POD), and superoxide dismutase (SOD), as well as malondialdehyde (MDA) and total antioxidant capacity (A-TOC). Our results show that both the relative root growth rate and relative frond number were affected by Cd concentrations. The chemical forms of Cd were influenced by Cd content in the medium. Relative root elongation (RRL) showed a significant correlation with chemical forms of Cd. Additionally, POD and SOD increased at lower Cd concentrations followed by a decrease at higher Cd concentrations (at more than 5 M Cd). Moreover, MDA and A-TOC increased and CAT decreased with increasing Cd exposure. Furthermore, CAT showed a significant correlation with F HCl -Cd. Taken together, it can be concluded that the chemical forms of Cd are statistically significant predictors of Cd toxicity to duckweed and to the other similar aquatic plants.

show abstract

“…Much progress has been made in USA, China, India and European countries [9][10][11][12][13][14]. In the Near East, phytoremediation trials were conducted in Jordan, Egypt and Iraq for the remediation of wastewater and heavy metals from polluted lakes and streams [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation of Lebanese polluted waters: a review of current initiatives

2019

View full text Add to dashboard Cite

Water pollution is presently considered as a serious apprehension in Lebanon. Heavy contamination load of nutrients, heavy metals and organic pollutants can be highly harmful for human health and detrimental to aquatic life and ecosystems. Phytoremediation in natural and constructed wetlands using aquatic macrophytes present a sustainable plant-based technology recognized as a very efficient option in water treatment. The employment of species such as Phragmites, Sparganium, Lemna sp and other aquatic macrophytes not only helps in pollution cleanup but also conserves aquatic communities. To date, two pilot constructed wetlands, Litani River and Bcharreh have been established in Lebanon. These promising initiatives have been, however, accompanied with very limited research studies to examine the role of utilized plants and their efficiency in the remediation process. This paper presents an overview of the status of these initiatives and phytoremediation potential in Lebanon.

show abstract

Removal of Some Heavy Metals from Industrial Wastewater by Lemmna Minor

Cited by 30 publications

References 16 publications

Potential of Duckweed (Lemna minor) for the Phytoremediation of Landfill Leachate

Potential of Duckweed (Lemna minor) for the Phytoremediation of Landfill Leachate

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Phytoremediation of Lebanese polluted waters: a review of current initiatives

Contact Info

Product

Resources

About