TY  - JOUR
TI  - Garden cress mucilage as a potential emerging biopolymer for improving turbidity removal in water treatment
SN  - 09575820
VL  - 119
SP  - 233
EP  - 241
Y1  - 2018///
N1  - cited By 23
N2  - Agricultural anthropogenic processes have resulted in high turbidity to nearby river water. This study aims to study the possibility and mechanism of biopolymer extracted from garden cress (Lepidium Sativum sp.) seed as natural coagulant aid in a point source agriculture wastewater discharge. Various physico-chemical characterisation studies were conducted i.e. functional group, zeta potential and surface floc morphology. FTIR spectra results indicated the biopolymer was assigned to band peaks at for hydroxyl, carboxyl groups. Whilst, zeta potential was around â??16 mV, describing its anionic nature. The morphologies study depicted that the addition of biopolymer produced a more compact and larger structure of the settled sludge. Influence of pH, dosage of Fe3+ and biopolymer were studied in synthetic kaolin and agricultural wastewater using factorial design. pH, dosage of Fe3+ and biopolymer significantly affect the turbidity removal in coagulation process with p-value < 0.05. While, optimized setting is at pH 5, concentration of Fe3+ is at 50 mg/L and concentration of biopolymer is at 15 mg/L for turbidity removal of 99.32. Interestingly, it could achieve more than 92 turbidity reduction within one-minute settling time at pH 6, concentration of Fe3+ is at 8â??10 mg/L and concentration of biopolymer is at 2.8â??5.0 mg/L. © 2018 Institution of Chemical Engineers
A1  - Lim, B.-C.
A1  - Lim, J.-W.
A1  - Ho, Y.-C.
JF  - Process Safety and Environmental Protection
PB  - Institution of Chemical Engineers
AV  - none
KW  - Agriculture; Biopolymers; Chemical water treatment; Coagulation; Flocculation; Fourier transform infrared spectroscopy; Seed; Turbidity; Zeta potential
KW  -  Agricultural wastewater; Anthropogenic process; Coagulation process; Concentration of fe; Garden cress; Physico-chemicals; Turbidity reduction; Wastewater discharge
KW  -  Biomolecules
ID  - scholars9910
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051834167&doi=10.1016%2fj.psep.2018.08.015&partnerID=40&md5=19bf56796272323b440c80e90899b870
ER  -