Permeate flux recovery and removal foulant performances of hollow fiber polyvinylidene fluoride membrane bioreactor with peroxodisulfate activated iron (II) sulfate as a chemical cleaning agent

被引：1

作者：

Rachman, Rahadian Abdul ^{[1
]}

Widiastuti, Nurul ^{[1
]}

Purnomo, Adi Setyo ^{[1
]}

Widjaja, Arief ^{[2
]}

Mumtazah, Zuhriah ^{[3
]}

Darmayanti, Rizki Fitria ^{[4
]}

Muharja, Maktum ^{[2
]}

机构：

[1] Inst Teknol Sepuluh Nopember, Fac Sci & Data Analyt, Dept Chem, Surabaya 60111, Indonesia

[2] Inst Teknol Sepuluh Nopember, Fac Ind Technol & Syst Engn, Dept Chem Engn, Surabaya 60111, Indonesia

[3] Univ Jember, Fac Engn, Dept Chem Engn, Jalan Kalimantan 37, Jember 68121, Indonesia

[4] Univ Muhammadiyah Jember, Fac Agr, Dept Agroind Technol, Jalan Karimata 49, Jember 68121, Indonesia

来源：

SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING | 2024年 / 48卷

关键词：

Chemical cleaning; Fouling; Peroxodisulfate; Polyvinylidene fluoride; Sulfate radicals; SUBCRITICAL WATER; COCONUT HUSK; STRATEGY;

D O I：

10.1016/j.sajce.2024.03.013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The main challenge with membrane bioreactors is fouling, which leads to decreased flux performance and a shortened membrane lifespan. This study aims to provide a solution for the flux recovery and removal of irreversible fouling on Polyvinylidene Fluoride (PVDF) membranes without damaging their structure using sulfate radicals. Sulfate radicals are formed via peroxodisulfate precursors that are activated by Fe2+. The membrane flux recovery and irreversible fouling ratio were 88.45-99.04% and 11.60-0.96%, respectively, at operating temperatures of 298-308 K. The PVDF membrane has been tested for microfiltration and washed up to 6 times per cycle. The mechanical properties, XRD, SEM-EDX, and ATR-FTIR characterization of the PVDF membrane after washing with PDS/Fe2+ did not show a negative effect on the PVDF structure. Additionally, the results of the kinetic and thermodynamic studies showed that washing with PDS/Fe2+ inhibited the formation of fouling particles on the membrane surface. Based on this study, sulfate radical oxidants with PDS precursors activated by Fe2+ can be applied as cleaning chemicals for PVDF membranes without damaging their structures.

引用

页码：436 / 450

页数：15