Sustainable removal of arsenic from simulated wastewater using solid waste seed pods biosorbents of Cassia fistula L.

Giri, Deen Dayal; Jha, Jay Mant; Srivastava, Neha; Hashem, Abeer; Shah, Maulin P.; Pal, Dan Bahadur

doi:10.1016/j.chemosphere.2021.132308

Cited by 22 publications

(13 citation statements)

References 43 publications

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“…Biosorption is a technique derived from adsorption. Biosorption has been considered a promising As removal method from groundwater and for other elements [ 17 , 27 , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] ]. In contrast to other conventional procedures, like oxidation, filtration, reverse osmosis, electrokinetics, ion exchange, coagulation, flocculation, or phytoremediation [ 16 , 18 , 19 , 22 , 25 , 36 , [44] , [45] , [46] , [47] , [48] ].…”

Section: Introductionmentioning

confidence: 99%

“…Biosorption has been considered a promising As removal method from groundwater and for other elements [ 17 , 27 , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] ]. In contrast to other conventional procedures, like oxidation, filtration, reverse osmosis, electrokinetics, ion exchange, coagulation, flocculation, or phytoremediation [ 16 , 18 , 19 , 22 , 25 , 36 , [44] , [45] , [46] , [47] , [48] ]. This method is preferred because it, has the advantages of low cost, high efficiency, negligible sludge production, the chance of recovery of As, and regeneration [ 49 ].…”

Section: Introductionmentioning

confidence: 99%

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Removal of arsenic from semiarid area groundwater using a biosorbent from watermelon peel waste

Letechipia¹,

Gonzalez-Trinidad²,

Júnez–Ferreira³

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Removal of arsenic from semiarid area groundwater using a biosorbent from watermelon peel waste

Letechipia¹,

Gonzalez-Trinidad²,

Júnez–Ferreira³

et al. 2023

Heliyon

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“…Comprehensive reviews on the removal of arsenic from aqueous solution by biochar are already available. [28][29][30][31][32][33][34] However, none of the previous reviews has focused on metalloaded biochars and the specific removal mechanisms. Given their significance, the current review centers on the applications of metal-loaded biochars in arsenic removal with special…”

Section: Introductionmentioning

confidence: 99%

“…Comprehensive reviews on the removal of arsenic from aqueous solution by biochar are already available [28–34] . However, none of the previous reviews has focused on metal‐loaded biochars and the specific removal mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Loaded Biochar for the Removal of Arsenic from Water: A Critical Review on Overall Effectiveness, Governing Mechanisms, and Influential Factors

et al. 2022

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Arsenic (As) contamination in water sources is a serious threat to safe drinking water afflicting many developed and developing nations. Among the different water treatment techniques, arsenic removal using metal‐loaded biochar has gained considerable interest as an efficient environmentally sustainable adsorbent. This review critically focuses on an in‐depth analysis of different adsorption mechanisms and various physicochemical properties such as pH, surface area and surface charge, porosity, and functional groups of the metal‐loaded biochar that are significant for As adsorption, which has not been previously described. It centers on addressing the overall effectiveness, governing mechanisms, and influential factors of metal‐loaded biochars for As removal from the aqueous medium. Special consideration on oxidation of arsenite to arsente and its removal was given. The oxidation processes are also effective in reducing arsenic toxicity by oxidation of arsenite to arsenate. A comprehensive insight into the utility of biochar for As removal for future field applications of biochar is delineated.

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“…The use of biomass has emerged as a promising low-cost solution [ 38 ] for the treatment and management of large volumes of agro-industrial wastes [ 39 , 40 ]. In this sense, biochar comes from a wide range of biomass, such as fruit, legume peels and husks [ 41 , 42 , 43 , 44 , 45 ], bagasse/pomace, fruit pit and shells [ 46 , 47 , 48 , 49 , 50 ], forestry wastes and pruning [ 51 , 52 , 53 ], sludge [ 54 , 55 ] and animal manure [ 56 , 57 ]. The biochar obtention releases more hydrogen than it consumes, making it a negative-emission technology [ 58 ].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H2 Generation and Use of the Biochars for CO2 Capture

et al. 2022

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This work valorizes butiá pomace (Butia capitata) using pyrolysis to prepare CO2 adsorbents. Different fractions of the pomace, like fibers, endocarps, almonds, and deoiled almonds, were characterized and later pyrolyzed at 700 °C. Gas, bio-oil, and biochar fractions were collected and characterized. The results revealed that biochar, bio-oil, and gas yields depended on the type of pomace fraction (fibers, endocarps, almonds, and deoiled almonds). The higher biochar yield was obtained by endocarps (31.9%wt.). Furthermore, the gas fraction generated at 700 °C presented an H2 content higher than 80%vol regardless of the butiá fraction used as raw material. The biochars presented specific surface areas reaching 220.4 m2 g−1. Additionally, the endocarp-derived biochar presented a CO2 adsorption capacity of 66.43 mg g−1 at 25 °C and 1 bar, showing that this material could be an effective adsorbent to capture this greenhouse gas. Moreover, this capacity was maintained for 5 cycles. Biochars produced from butiá precursors without activation resulted in a higher surface area and better performance than some activated carbons reported in the literature. The results highlighted that pyrolysis could provide a green solution for butiá agro-industrial wastes, generating H2 and an adsorbent for CO2.

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Sustainable removal of arsenic from simulated wastewater using solid waste seed pods biosorbents of Cassia fistula L.

Cited by 22 publications

References 43 publications

Removal of arsenic from semiarid area groundwater using a biosorbent from watermelon peel waste

Removal of arsenic from semiarid area groundwater using a biosorbent from watermelon peel waste

Metal‐Loaded Biochar for the Removal of Arsenic from Water: A Critical Review on Overall Effectiveness, Governing Mechanisms, and Influential Factors

Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H2 Generation and Use of the Biochars for CO2 Capture

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