Multifunctional sugar-cube-like Fe3O4@Cu/PVA biomaterials for enhanced removal of nitrate and Mn(II) from moving bed biofilm reactor (MBBR)

Autor:	Dong hui Liang, Li Wei, Hai rong Zhu, Xue Chen Bai, Yi chou Gao, Jun feng Su
Rok vydání:	2019
Předmět:	0106 biological sciences chemistry.chemical_compound Nitrate Chemical engineering Chemistry Moving bed biofilm reactor 010608 biotechnology 010501 environmental sciences Cube Sugar 01 natural sciences 0105 earth and related environmental sciences Water Science and Technology
Zdroj:	Water Supply. 19:1643-1652
ISSN:	1607-0798 1606-9749
Popis:	A novel Fe3O4@Cu/PVA biomaterial as a new adsorbent and bacterial cell immobilized carrier was synthesized in this work. The structure and morphology were characterized by scanning electron microscopy (SEM). Effects of factors on Mn(II)-based autotrophic denitrification were investigated in a moving bed biofilm reactor (MBBR). The results indicate that the highest nitrate removal and Mn(II) oxidation efficiency occurred under the conditions of initial Mn(II) concentration of 80 mg·L−1, hydraulic retention time (HRT) of 10 h and pH 7. Meteorological chromatography analysis showed that N2 was produced as an end-product, and that gas compositions were different depending on the concentration of Mn(II) in the MBBR. The community diversity in the MBBR was markedly influenced by the concentration of Mn(II) and Pseudomonas sp. H-117 played a primary role in the process of nitrate removal and Mn(II) oxidation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::67affd8628b723b8fd3808741acd2fcc https://doi.org/10.2166/ws.2019.038 Zobrazit plný text záznamu