Removal of heavy metal from wastewater using ion exchange with membrane filtration from Swarnamukhi river in Tirupati

Chauhan, Manvendra Singh; Rahul, Atul Kumar; Shekhar, Shiwanshu; Kumar, Santosh

doi:10.1016/j.matpr.2022.08.280

Cited by 11 publications

(4 citation statements)

References 16 publications

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“…Hence, the investigation aimed at improving the removal of Cr(VI) is of great concern. Various approaches are utilized to eliminate heavy metals, including ion exchange, electrochemical method, physical-chemical methods, membrane filtering, and phytoremediation [3][4][5][6][7][8][9][10][11]. These suggested practices are seen to be economically inefficient and environmentally harmful.…”

Section: Introductionmentioning

confidence: 99%

Optimization of hexavalent chromium removal from aqueous solutions using Eichhornia crassipes-derived adsorbents through a response surface methodology

Tri,

Tung,

Hong

et al. 2024

Preprint

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Heavy metal contamination, particularly hexavalent chromium (Cr(VI)), in water bodies poses severe environmental and health risks. In recent years, using natural adsorbents for removing heavy metals has gained intensive interest thanks to their eco-friendliness and cost-effectiveness. In this work, lignocellulosic biomass materials were modified and employed as adsorbents to remove Cr(VI) from contaminated water. Adsorbent materials derived from Eichhornia crassipes showed the significance of removing Cr (VI) from the aqueous solution after being treated by H2SO4 acid 1.5% w/v at 45oC for 30 h. After localising the upper and lower limits of each factor, design under the response surface models (RSM) using the Box–Behnken Design (BBD) method was used to optimise enhancement of the removal of Cr(VI). The strategy showcased the ability to construct a second-degree polynomial model that is highly valid (R2˃0.9805) and includes statistically significant interactions (P < 0.05). The findings indicated that the highest capacity for adsorbing Cr(VI) was 41.53 mg/g, which was attained by using 15 g/L of adsorbent, maintaining a pH of 3, starting with a Cr(VI) concentration of 130 mg/L, and allowing a contact duration of 80 minutes.

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Section: Introductionmentioning

confidence: 99%

Optimization of hexavalent chromium removal from aqueous solutions using Eichhornia crassipes-derived adsorbents through a response surface methodology

Tri,

Tung,

Hong

et al. 2024

Preprint

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“…But the use of metal–organic frameworks for purification and separation purposes is limited [ 5 , 6 , 7 , 8 , 9 , 10 ]. Concerning water treatment, assessment of membrane technology is crucial [ 11 , 12 ]. Due to its convenient operation, membrane separation has been increasingly used to treat inorganic wastes.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Analysis of Anodized Aluminum Oxide Membrane Degradation

Manzoor,

Qasim,

Ashraf

et al. 2023

Sensors

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Microelectromechanical systems (MEMS)-based filter with microchannels enables the removal of various microorganisms, including viruses and bacteria, from fluids. Membranes with porous channels can be used as filtration interfaces in MEMS hemofilters or mini-dialyzers. The main problems associated with the filtration process are optimization of membrane geometry and fouling. A nanoporous aluminum oxide membrane was fabricated using an optimized two-step anodization process. Computational strength modeling and analysis of the membrane with specified parameters were performed using the ANSYS structural module. A fuzzy simulation was performed for the numerical analysis of flux through the membrane. The membrane was then incorporated with the prototype for successive filtration. The fluid flux and permeation analysis of the filtration process have been studied. Scanning electron microscope (SEM) micrographs of membranes have been obtained before and after the filtration cycles. The SEM results indicate membrane fouling after multiple cycles, and thus the flux is affected. This type of fabricated membrane and setup are suitable for the separation and purification of various fluids. However, after several filtration cycles, the membrane was degraded. It requires a prolonged chemical cleaning. High-density water has been used for filtration purposes, so this MEMS-based filter can also be used as a mini-dialyzer and hemofilter in various applications for filtration. Such a demonstration also opens up a new strategy for maximizing filtration efficiency and reducing energy costs for the filtration process by using a layered membrane setup.

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“…Industrial aqueous waste could serve as an additional source for its production [6]. Currently, several methods for recovering metals from solutions have been developed, such as chemical precipitation [7], membrane filtration [8], and adsorption [9]. Among these approaches, adsorption stands out as one of the most promising due to its high efficiency and low cost [10].…”

Section: Introductionmentioning

confidence: 99%

Improved Sorption of Praseodymium Ions From Nitrate Solutions by Activated Ion Exchangers

Jumadilov,

Myrzabay,

Ibragimova

2023

Chem. J. of Kaz.

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In this research, we investigated the praseodymium ions sorption by the ion exchangers KU-2-8 (H+form) and AV-17-8 (OH-form) as an interpolymer system called "KU-2-8:AV-17-8" (X:Y) with the molar ratio of ionic groups X:Y (6:0, 5:1, 4:2, 3:3, 2:4, 1:5, and 0:6) in praseodymium nitrate solution. To be clear, two cross-linked polymers having active functional groups that are in the same solution but not in direct contact form an interpolymer system. The purposeof our research to demonstrate how activating ion exchangers as functional polymers by remote contact in an aqueous medium enhances the sorption of a variety of valuable metals and their compounds from industrial waste solutions, including praseodymium. Objects.Ion exchangers that are mutually activated in an aqueous medium undergo conformational and electrochemical changes that lead to a shift in their state from neutral to highly ionized and an increase in their sorption activity toward target metal ions. Results.The experimental findings showed that the sorption activity of the interpolymer system KU-2-8:AV-17-8 (5:1) increased significantly when compared to praseodymium ions (43 %), but the sorption activity of the raw KU-2-8 (6:0) and raw AV-17-8 (0:6) had the same values of 25 % and 5 %, respectively. Conclusion. This research sheds light on a novel and promising approach to improve the efficiency of ion exchangers, opening possibilities for the effective recovery and removal of valuable metals from complex solutions. Additionally, it holds practical implications for sustainable waste management and resource recycling, contributing to the advancement of environmental protection and resource conservation in various industrial sectors. Further investigations and optimization of the interpolymer system could yield substantial benefits for greener and more resource-efficient future sorption technologies.

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Removal of heavy metal from wastewater using ion exchange with membrane filtration from Swarnamukhi river in Tirupati

Cited by 11 publications

References 16 publications

Optimization of hexavalent chromium removal from aqueous solutions using Eichhornia crassipes-derived adsorbents through a response surface methodology

Optimization of hexavalent chromium removal from aqueous solutions using Eichhornia crassipes-derived adsorbents through a response surface methodology

Simulation and Analysis of Anodized Aluminum Oxide Membrane Degradation

Improved Sorption of Praseodymium Ions From Nitrate Solutions by Activated Ion Exchangers

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