Extraction of phosphorous from thermally treated sludge and separation of aluminum by adsorption

Harada, Hiroyuki; Hidayat, Endar; Seigo, Uemoto; Fujita, Keiko

doi:10.1007/s10163-021-01273-w

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The technique for detecting glyphosate was conducted by using the method discovered by [29]. The standard solution of 1000 mg/L glyphosate was used to prepare different concentrations of glyphosate (10,20,30,40, and 50 mg/L). For detection of glyphosate, 0.5 mL of each standard glyphosate/sample were added into test tubes containing 0.5 mL of 5% (m/v) C 9 H 6 O 4 and 0.5 mL of 5% (m/v) Na 2 MoO 4 .…”

Section: Detection Of Glyphosate and Calibration Curvementioning

confidence: 99%

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Glyphosate Removal from Water Using Biochar Based Coffee Husk Loaded Fe3O4

Lita

Hidayat

Sarbani

et al. 2023

Water

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Glyphosate is an herbicide that is usually used by farmers and is considered harmful to the environment in excess amounts. To address these issues, coffee-husk-biochar-loaded Fe3O4 (CHB- Fe3O4) was used as an adsorbent to remove glyphosate from water. CHB-Fe3O4 characteristics such as pHpzc, FTIR, and SEM were measured to understand the properties of this adsorbent. The best conditions for glyphosate removal by CHB-Fe3O4 were obtained at pH 2.0, where the adsorption capacity and percentage removal are 22.44 mg/g and 99.64%, respectively, after 4 h of adsorption. The Freundlich model provided the best fit for the adsorption isotherm, demonstrating multilayer sorption. The most effective model for characterizing the adsorption kinetics was the pseudo-second-order model with a chemical adsorption mechanism. The desorption studies found that the use of 0.1 M NaOH was the best concentration to effectively desorb glyphosate with a desorption percentage of 69.4%. This indicates that CHB- Fe3O4 is a feasible adsorbent for glyphosate removal from water.

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Section: Detection Of Glyphosate and Calibration Curvementioning

confidence: 99%

“…Quantification of adsorbed glyphosate was calculated using Equation (1), while Equation ( 2) was applied to determine the removal percentage. All procedures were conducted twice [30,31].…”

Section: Batch Adsorption and Desorption Experimentsmentioning

confidence: 99%