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Comparing the performance of chitosan in two different solvents for coagulation of peat water.

Authors :
Irawati, U.
Maharini, G.
Ariyani, D.
Source :
AIP Conference Proceedings; 2023, Vol. 2634 Issue 1, p1-5, 5p
Publication Year :
2023

Abstract

Chitosan is a natural material that possesses great potentials as an alternative coagulant. In this research, chitosan was used for peat water treatment. As the efficiency of chitosan is also determined by the solvent used, this research investigated the effect of different solvents, i.e., acetic acid (CH<subscript>3</subscript>COOH) and hydrochloric acid (HCl) towards the efficiency of chitosan as a coagulant to treat peat water. The parameters being studied comprised turbidity, TDS, and total iron concentration in the sample before and after coagulation using chitosan. Optimum dose and pH for chitosan in each solvent were determined using a standard jar test apparatus. The results showed that both chitosan dissolved in acetic acid (chitosan- CH<subscript>3</subscript>COOH) and hydrochloric acid (chitosan-HCl) had given an optimum result at 10 mg/L dosages the decrease in turbidity reached up to 95.38% for chitosan-CH<subscript>3</subscript>COOH and 92.39% for chitosan-HCl. A dosage above this optimum value leads to deflocculation, lowering the coagulation efficiency. Both of the chitosan coagulants gave optimum results at pH6. However, chitosan-HCl seemed to work in a wider pH range than chitosan- CH<subscript>3</subscript>COOH. Both solvents used increased TDS than the initial values due to the solvent being ionic compounds themselves. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
2634
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
161544170
Full Text :
https://doi.org/10.1063/5.0111284