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Fouling characteristics of microfiltration membranes by organic and inorganic matter and evaluation of flux recovery by chemical cleaning
| Content Provider | Semantic Scholar |
|---|---|
| Author | Woo, Yun Chul Kim, Han-Seung |
| Copyright Year | 2014 |
| Abstract | AbstractCharacteristics of membrane fouling by organic and inorganic foulants and flux recovery by chemical cleaning were investigated in this study. Three kinds of raw water with organic matter (15 mg/L humic acid), with inorganic matter (1 mg/L Fe and 1 mg/L Mn) and a mixture of organic and inorganic matter (humic acid, Fe and Mn) were tested. The effects of Ca2+ and pH on fouling were also investigated as well as efficiency of chemical cleaning. The results showed that raw water with the mixture reduced the final flux by 10%. On the other hand, the final fluxes were reduced by 8% for inorganic matter and by 78% for organic matter. Although, FI decreased with the existence of Ca2+ in the mixture of humic acid, Fe and Mn, flux was recovered easily by backwashing because Ca formed a cake layer by chelating with humic substances. However, pre-treatment with sodium hypochlorite reduced the flux severely for raw water containing inorganic matter. Acid (2% nitric acid) and base (1% sodium hydroxide), were use... |
| Starting Page | 6920 |
| Ending Page | 6929 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1080/19443994.2013.825885 |
| Volume Number | 52 |
| Alternate Webpage(s) | https://www.deswater.com/DWT_abstracts/vol_52_37-39/52_37-39_2014_6920.pdf |
| Alternate Webpage(s) | https://doi.org/10.1080/19443994.2013.825885 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
