Role of Free-Floating Aquatic Macrophytes in Abatement of the Disturbed Environs

Dijoo, Zulaykha Khurshid; Ali, Rohaya; Hameed, Mehvish

doi:10.1007/978-3-030-48690-7_12

Cited by 3 publications

(3 citation statements)

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“…In other words, the heavy metal uptake by plants reduced significantly when the pH decreased from 4 to 2 due to the fact that there were fewer anionic sites available for the ion exchange and more competitive metal binding between the protons and the metal ions to the plant's cell walls [63]. However, it was noteworthy that the presence of other contaminants in the medium could affect the metal-uptake efficiency [64]. For example, a solution with pH ranges between 6 and 9 might only be feasible for the remediation of wastewater without heavy metal contamination.…”

Section: Effect Of Solution Phmentioning

confidence: 99%

“…Temperatures between 20 • C and 30 • C could result in the optimal cultivation of most aquatic plants. Conversely, a temperature equivalent to or lower than 10 • C could hinder the metabolic activities of most aquatic plants [64]. Additionally, it would hinder the growth of plants and inactivate microbial activity, leading to a low metal removal efficiency by plants [65].…”

Section: Effect Of Solution Temperaturementioning

confidence: 99%

“…It revealed that floating macrophytes, such as water hyacinth and water lettuce, were likely influenced by the low water salinity at about 2.50% [69]. In the case of high salt concentrations in the water, it slowed down the transpiration rates and reduced the total dry weight of the plants [64]. Moreover, high water salinity might induce the complexation of metal-chloride, making the metal uptake process more complex, hence reducing the metal uptake by plants [43].…”

Section: Effect Of Water Salinitymentioning

confidence: 99%

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Review on Phytoremediation Potential of Floating Aquatic Plants for Heavy Metals: A Promising Approach

et al. 2023

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Water pollution due to heavy metals has become a serious environmental concern due to their hazardous properties. Since conventional water remediation techniques are generally ineffective and non-environmentally friendly, phytoremediation has gained increasing attention from worldwide researchers and scientists due to its cost-effectiveness and environmental friendliness. Hence, this review first discussed soil and water remediations. Phytoremediation can be divided into five techniques to remove heavy metals from the polluted environment, namely, phytostabilization (phytosequestration), phytodegradation (phytotransformation), phytofiltration (rhizofiltration), phytoextraction (phytoaccumulation), and phytovolatilization. Four common floating aquatic plants (accumulator plants), such as duckweed (Lemna minor), water lettuce (Pistia stratiotes), water hyacinth (Eichhornia crassipes), and watermoss (Salvinia) were discussed in detail due to their great capability in absorbing the metal ions by their roots and further translocating the metal ions to the aerial parts. Furthermore, the parameter studies, such as optimum pH and temperature of the water, exposure duration, initial metal concentration, water salinity, and the addition of chelating agents, were evaluated. The absorption kinetics of the plants was discussed in detail. In short, phytoremediation is a promising green and sustainable water remediation approach. However, further research is necessary to enhance its practicability and performance at large-scale implementation.

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Section: Effect Of Solution Phmentioning

confidence: 99%

Section: Effect Of Solution Temperaturementioning

confidence: 99%