Entrapped-cells-based anaerobic forward osmosis membrane bioreactor treating medium-strength domestic wastewater: Fouling characterization and performance evaluation
| Autor: | Chaiwat Rongsayamanont, Chaipon Juntawang, Eakalak Khan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Osmosis
Environmental Engineering Biofouling Health Toxicology and Mutagenesis 0208 environmental biotechnology Forward osmosis 02 engineering and technology Wastewater 010501 environmental sciences Membrane bioreactor 01 natural sciences Water Purification Bioreactors Proteobacteria Bioreactor Environmental Chemistry Anaerobiosis 0105 earth and related environmental sciences Fouling Chemistry Membrane fouling Public Health Environmental and Occupational Health Membranes Artificial General Medicine General Chemistry Pulp and paper industry Pollution 020801 environmental engineering Membrane |
| Zdroj: | Chemosphere. 225:226-237 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2019.03.032 |
| Popis: | A novel entrapped cells-based-anaerobic forward osmosis membrane bioreactor (E-FOMBR) was developed. Its performance and fouling were investigated in comparison with suspended cells-based-anaerobic forward osmosis membrane bioreactor (S-FOMBR). E-FOMBR and S-FOMBR were operated under the same conditions with two widely used draw solutions (NaCl and (NH4)2SO4). The membrane fouling especially irreversible fouling in S-FOMBR was more severe than that in E-FOMBR regardless of the type of draw solution. The permeate flux of E-FOMBR were 1.79 and 1.85 LMH while those of S-FOMBR were 1.49 and 1.14 LMH with NaCl and (NH4)2SO4 as draw solutions, respectively. More deterioration of biological activity (suggested by lower organic removal) due to accumulation of salt was observed in S-FOMBR compared to E-FOMBR. Proteobacteria dominated in both FOMBRs but was more abundant in E-FOMBR than S-FOMBR. The superiority of E-FOMBR over S-FOMBR included higher and stable system performance, higher flux, and longer operation time. |
| Databáze: | OpenAIRE |
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