| Related citation: | Quan Zhang,Feiyun Sun,Wenyi Dong,Rubing Han,Lei Liu.PAC Addition for MBR Start up in Micro-polluted Water Treatment[J].Journal of Harbin Institute Of Technology(New Series),2015,22(3):40-47.DOI:10.11916/j.issn.1005-9113.2015.03.006. |
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| Author Name | Affiliation | | Quan Zhang | School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150001, China
Harbin Institute of TechnologyShenzhen Graduate School, Shenzhen, Guangdong, 518055, China | | Feiyun Sun | Harbin Institute of TechnologyShenzhen Graduate School, Shenzhen, Guangdong, 518055, China | | Wenyi Dong | Harbin Institute of TechnologyShenzhen Graduate School, Shenzhen, Guangdong, 518055, China | | Rubing Han | Harbin Institute of TechnologyShenzhen Graduate School, Shenzhen, Guangdong, 518055, China | | Lei Liu | Quality Testing Center, Shenzhen, Guangdong, 518055, China |
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| Abstract: |
| In order to improve membrane reactor (MBR) performance for micro-polluted surface water treatment in start-up phase, removals of nitrogen and organic matters especially synthetic organic matters by MBR and a simultaneous application of powdered activated carbon (PAC) with MBR (PAC-MBR) using flat sheet membrane are investigated. The results confirm that MBR treatment can be effective for the removal of organic matters including trace organics. The added PAC can improve contaminant removal efficiency especially in the beginning of operation when MBR cannot effectively remove contaminants and effluent satisfying quality standards is obtained. Moreover, the removal efficiency of target trace synthetic organics is investigated and the removal mechanism is discussed. Biodegradation by microorganism, rejection by filtration of membrane with biofilm and adsorption all contribute to the removal performance. Furthermore, volatile organic compounds can be removed by aeration. The filtration process is confirmed important for natural organic matters (NOM) removal in both MBR and PAC-MBR systems. Combining with PAC, the MBR can remove all fractions of NOM while the single MBR can hardly reduce fulvic or humic acid in water even during the steady operation. |
| Key words: MBR powdered activated carbon trichloroethylene nitrobenzene trichlorophenol |
| DOI：10.11916/j.issn.1005-9113.2015.03.006 |
| Clc Number:TQ028.8 |
| Fund: |
