Ceramic membranes offer more advantageous performances than conventional
polymeric membranes. However, membrane fouling caused by Natural Organic
Matters (NOM) contained in the feed water is still become a major problem for
operational efficiency. A new method of ceramic membrane pre-coating with
Powdered Activated Carbon (PAC), which allows extremely contact time for
adsorbing aquatic contaminants, has been studied as a pre-treatment prior to
ceramic microfiltration membrane. This bench scale study evaluated five different
types of PAC (SA Super, G 60, KCU 6, KCU 8 and KCU 12,). The results showed that
KCU 6 with larger pore size was performed better compared to other PAC when
pre-coated on membrane surface. PAC pre-coating on the ceramic membrane with
KCU 6 was significantly enhance NOM removal, reduced membrane fouling and
improved membrane performance. Increase of total membrane resistance was
suppressed to 96%. The removal of NOM components up to 92%, 58% and 56% for
biopolymers, humic substances and building blocks, respectively was achieved at
pre-coating dose of 30 mg/l. Adsorption was found to be the major removal
mechanism of NOM. Results obtained showed that biopolymers removal are
potentially correlated with enhanced membrane performance.
| Identifer | oai:union.ndltd.org:kaust.edu.sa/oai:repository.kaust.edu.sa:10754/262792 |
| Date | 12 1900 |
| Creators | Kurniasari, Novita |
| Contributors | Amy, Gary L., Biological and Environmental Sciences and Engineering (BESE) Division, Croue, Jean-Philippe, Sinha, Shahnawaz |
| Source Sets | King Abdullah University of Science and Technology |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Rights | 2015-01-01, At the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2015-01-01. |
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