Title : Experimental and computational investigations of the interactions between model organic compounds and subsequent membrane fouling.

Pub. Date : 2014 Jan 1

PMID : 24091191






9 Functional Relationships(s)
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1 The formation of aggregates of sodium alginate and bovine serum albumin (BSA) (as representative biopolymers) with humic acid were detected by Liquid Chromatography (LC) UV254 response in the biopolymer region for mixture solutions. Humic Substances albumin Homo sapiens
2 BSA interaction with humic acid showed that aggregation occurred both in the presence and absence of calcium, suggesting that multivalent ions did not play a part in the aggregation process. Humic Substances albumin Homo sapiens
3 The fouling characteristics for the BSA-humic acid mixture appeared to be significantly greater than the fouling characteristics of the individual solutions, while for the sodium alginate-humic acid mixture, the fouling rate was similar to that of the sodium alginate alone. Humic Substances albumin Homo sapiens
4 The effectiveness of hydraulic backwashing, 10-15% reversibility, was observed for the BSA-humic acid mixture, while the % reversibility was 20-40% for the sodium alginate-humic acid mixture. Humic Substances albumin Homo sapiens
5 Increased humic acid and DOC rejection were observed for both BSA-humic acid and sodium alginate-humic acid solutions compared to the individual solutions, indicating that the biopolymer filter cakes were able to retain humic acids. Humic Substances albumin Homo sapiens
6 Increased humic acid and DOC rejection were observed for both BSA-humic acid and sodium alginate-humic acid solutions compared to the individual solutions, indicating that the biopolymer filter cakes were able to retain humic acids. Humic Substances albumin Homo sapiens
7 Increased humic acid and DOC rejection were observed for both BSA-humic acid and sodium alginate-humic acid solutions compared to the individual solutions, indicating that the biopolymer filter cakes were able to retain humic acids. Humic Substances albumin Homo sapiens
8 Complementary molecular dynamics simulations were designed to provide insights into the specific mechanisms of interaction between BSA and humic acid, as well as between alginate and humic acid. Humic Substances albumin Homo sapiens
9 For the BSA-humic acid system; electrostatic, hydrophobic and hydrogen bonding were the dominant types of interactions predicted, whilst divalent ion-mediated bonding was not identified in the simulations, which supported the LC-results. Humic Substances albumin Homo sapiens