Removal of Heavy Metals From Wastewater by Using Phytoremediation Technology

Abstract

Contamination of soil and water by toxic metals is a major environmental hazard. The removal of heavy metals from wastewater by chemical methods is very costly and does not apply to the pretreatment process. Hence, phytoremediation process is one of the simplest methods to restore polluted environments. The present research paper investigates the potential of Mimosa Pudica for bio removal of heavy metals like Cd, Pb and Cu from wastewater by using phytoremediation or bioremediation technology. Heavy Metals were detected before and after the process using Atomic Adsorption Spectrometer (AAS). The synthetic wastewater contains Cd, Pb, and Cu at an initial concentration of 0.25mg/l, 0.5mg/l, and 2mg/l was introduced to the soil mass planted by Mimosa Pudica and treated for 16 days through their root. Collected samples were taken for laboratory analysis. The result showed that there was a reduction in Cd, Pb and Cu at a concentration of 0.02mg/l, 0.21mg/l, and 0.4mg/l level of heavy metals from the wastewater. After that, investigation of the potential of Mimosa Pudica accumulates up to 92% of Cd, 58 % of Pb, and 80% of Cu. The evidence presented by this study specified that Mimosa Pudica is an efficient accumulator plant for phytoremediation or bioremediation.

Black ZnO nanoparticles synthesized by a green chemistry process

“…Nanoscience and nanotechnology are under constant research because all the possible applications with positive impact such as water remediation, wastewater treatment, nanocomposite production to enhance thermophysical properties, enhancement of properties related to use efficiently the solar energy, alternative methods for time an energy saving [1][2][3][4][5][6].…”

Analyzing The Efficacy of <em>Salvinia molesta</em> and <em>Pistia stratiotes</em> as Phytoremediation Agent for Heavy Metals

“…At least 20 metals are categorized as hazardous, and a half of them are released into the environment at levels that are very dangerous to human health (Akpor and Muchie, 2010;Ajayi and Ogunbayio, 2012;Roy et al, 2018). Strong metals and metalloid contamination has been caused by rapid population increase, deforestation, urbanization, industry development, exploration, and exploitation of the environment (Ajayi and Ogunbayio, 2012;Balamoorthy et al, 2022;Ullah et al, 2022). Both people and other living things can become unhealthy after being exposed to heavy metals.…”

“…Both people and other living things can become unhealthy after being exposed to heavy metals. Additionally, this category of pollutants has the potential to increase fatalities and the prevalence of severe, fatal diseases (Balamoorthy et al, 2022). Acute poisoning in people can result in serious failure of the liver, brain, kidneys, reproductive system, and nervous system (Moktar and Mohd Tajuddin, 2019).…”

“…Toxic heavy elements like Cadmium (Cd), Zinc (Zn), Chromium (Cr), Lead (Pb), and Copper (Cu) serve as instances of harmful heavy metals that are well-known for their detrimental impact on the environment (Balamoorthy et al, 2022). Because of their persistence, biomagnification, and accumulation in the food chain, the disposal of heavy metals without effective treatment creates a serious risk to public health (Ekanayake and Manage, 2017;Roy et al, 2018;Balamoorthy et al, 2022). Cancer, organ damage, nervous system impairment, and restricted growth and development are just a few of the serious consequences (Ajayi and Ogunbayio, 2012;Akpor and Muchie, 2010;Roy et al, 2018).…”

“…Cancer, organ damage, nervous system impairment, and restricted growth and development are just a few of the serious consequences (Ajayi and Ogunbayio, 2012;Akpor and Muchie, 2010;Roy et al, 2018). The contamination by these metallic elements has adverse effects on the ecosystem and contributes to the issue of global warming (Balamoorthy et al, 2022). Therefore, it necessitates the implementation of measures to mitigate metal pollution.…”