期刊
BIORESOURCE TECHNOLOGY
卷 248, 期 -, 页码 56-60出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.06.103
关键词
Bioflocculant; Periphytic biofilm; Periphytic EPS; Turbidity removal; Aniline blue
资金
- State Key Development Program for Basic Research of China [2015CB158200]
- National Natural Science Foundation of China [41422111]
- Natural Science Foundation of Jiangsu Province of China [BK20150066]
- Youth Innovation Promotion Association, Chinese Academy of Sciences [2014269]
The aim of this work was to study the characteristics and flocculating properties of extracellular polymeric substances (EPS) extracted from periphytic biofilms. The periphytic EPS, with an extracted yield of 491.8 mg/g, were mainly composed of hetero-polysaccharides and proteins, and the elements C1s, N1s, and O1s. Polysaccharides represented 53.28% of the periphytic EPS. Proteins constituted 20.26% of the EPS, and contributed to at least 34.65% of the total flocculating activity. The periphytic EPS showed high turbidity removal capacity (86.76 +/- 1.52%, 10 min) and efficient aniline blue (AB) removal capacity (56.46 +/- 1.41%, 30 min). The mechanism of AB removal by the periphytic EPS seemed to be a combined technique of adsorption-flocculation. This study reveals the flocculating capability of periphytic EPS, and suggests that periphytic biofilms are novel sources for bioflocculants preparation. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据