Preparation of magnetic macroporous polymer sphere for biofilm immobilization and biodesulfurization
| Autor: | Yun Li, Chenglie Li, Xinhui Feng, Xiaolong Zhou, Ting Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymers and Plastics General Chemical Engineering Oxide 02 engineering and technology 010501 environmental sciences 01 natural sciences Biochemistry chemistry.chemical_compound Silicone Materials Chemistry Environmental Chemistry Sulfate Sulfate-reducing bacteria 0105 earth and related environmental sciences chemistry.chemical_classification Biofilm General Chemistry Polymer equipment and supplies 021001 nanoscience & nanotechnology chemistry Chemical engineering Magnetic nanoparticles 0210 nano-technology Template method pattern |
| Zdroj: | Reactive and Functional Polymers. 141:1-8 |
| ISSN: | 1381-5148 |
| DOI: | 10.1016/j.reactfunctpolym.2019.04.016 |
| Popis: | Immobilized sulfate reducing bacteria have been widely investigated in the field of bioremediation of sulfate containing wastewater. To enhance the biofilm loading and shorten the start-up stage, a series of magnetic macroporous polymer beads were prepared in this work by using a novel co-stabilized Pickering high internal phase emulsions (HIPEs) template method. The effect of the addition of magnetic particles on both the morphology of the polymer support and the performance of the biofilm at the start-up stage were investigated. The results showed that the addition of magnetic particles could restrain the enrichment phenomenon of silicone and, hence, increase the loading amount of the biofilm. At the start-up stage under 3000 mg SO42−·L−1 concentration, the sulfate reducing efficiencies on the magnetic support reached a maximum of 39.90%, which was higher than that of other systems that exhibit efficiencies of approximately 30%. For the long-term stage, due to the decomposition of the ferriferous oxide, the sulfate reducing efficiencies of the biofilm on the magnetic poly(St-MTQ)HIPE (MPSMH) and poly(St-MTQ)HIPE (PSMH) supports did not show a significant difference. |
| Databáze: | OpenAIRE |
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