期刊
BIORESOURCE TECHNOLOGY
卷 315, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2020.123854
关键词
Algae-bacteria symbiotic system; Formation process; Adsorption mechanism; Mycelial pellet
资金
- National Natural Science Foundation of China [51678222, 51408200]
- Open Project of State Key Laboratory of Urban Water Resource and Environment [ES201803]
- China Postdoctoral Science Foundation [2018M641888]
The formation process of the algae-bacteria symbiotic system (ABSS) was analyzed, and the formation adsorption conditions were optimized. The role of extracellular polymeric substances (EPS), specific surface area and zeta potential in adsorption mechanisms were assessed and proposed. The results showed the dry weight of the ABSS and adsorption efficiency of microalgae reached the highest under the conditions of 25 degrees C, pH 6.0, 160 rpm and CaCl2 2.0 mg/mL. The process of the ABSS formation could be mainly divided into the fast stage and slow stage. The roles of EPS, specific surface area and zeta potential accounted for 84.22%, 5.17% and 10.61% of the adsorption capacity, respectively. EPS dominated the formation of the ABSS. The results indicated that mycelial pellets were biosorption materials and had the characteristics of chemical materials.
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