Utilization of Nata De Coco as Adsorben in Methyl Orange Adsorption

Pratiwi, Sani Widyastuti; Sari, Siska Novita; Nurmalasari, Ratna; Indriani, Meli

doi:10.30870/educhemia.v5i2.7977

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorption process is the process of fluid absorption of a porous solid that has advantages in its work including being simple, environmentally friendly, economical, and does not provide side effects. Some factors that affect the rate of adsorption include the type of adsorbent, the type of adsorbate, the surface area of the adsorbent, the concentration of adsorbate, pH, and temperature [7].…”

Section: Introductionmentioning

confidence: 99%

Optimization time and mass of eggshell adsorbent in improving waste cooking oil quality

Pratiwi

Gustiani²,

Amadea³

et al. 2022

J. Pijar.MIPA

Self Cite

View full text Add to dashboard Cite

Oxidation and hydrolysis damage to cooking oil can occur due to repeated use of cooking oil. Adsorption by utilizing eggshells, which contain high calcium carbonate and have a natural pore structure that can improve the quality of used cooking oil. This study aims to determine the physical properties and characteristics of the thermally activated chicken eggshell adsorbent and to determine the ability of the adsorbent to absorb acid and metal cadmium. The steps carried out in this study were the manufacture of adsorbents, quality tests of the adsorbents produced, and testing of adsorbents on used cooking oil samples based on acid numbers and decreasing levels of metal cadmium in the samples. The adsorption process of used cooking oil was carried out with variations in the mass of the adsorbent, namely 5, 7, 9, and 11 grams, and stirring time for 10, 20, 40, and 60 minutes. Based on the results of the study, it was found that the optimum conditions for decreasing the acid number with the use of an adsorbent mass of 11 grams and a stirring time of 60 minutes resulted in an acid number was 0.9974 mg NaOH/g with a decrease in the acid number of 76.54%, while for cadmium metal it decreased by 100% with adsorption capacity of 2.57124 mg/g.

show abstract

Section: Introductionmentioning

confidence: 99%