Simultaneous removal of nutrient and sulfonamides from marine aquaculture wastewater by concentrated and attached cultivation of Chlorella vulgaris in an algal biofilm membrane photobioreactor (BF-MPBR)

被引：86

作者：

Peng, Yuan-Yuan ^{[1
]}

Gao, Feng ^{[1
]}

Yang, Hong-Li ^{[2
]}

Wu, Hang-Wei-Jing ^{[1
]}

Li, Chen ^{[1
]}

Lu, Miao-Miao ^{[1
]}

Yang, Zi-Yan ^{[1
]}

机构：

[1] Zhejiang Ocean Univ, Coll Marine Sci & Technol, Zhoushan 316000, Peoples R China

[2] Zhejiang Ocean Univ, Coll Food & Pharm, Zhoushan 316000, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2020年 / 725卷

关键词：

Aquaculture wastewater; Microalgae culture; Photobioreactor; Nutrient removal; Antibiotics; SURROUNDING HAILING ISLAND; SOUTH CHINA OCCURRENCE; UTILIZING PHYTOREMEDIATION; MICROALGAE CULTIVATION; BIOMASS PRODUCTION; ANTIBIOTICS; SYSTEM; GROWTH; RISK; DEGRADATION;

D O I：

10.1016/j.scitotenv.2020.138524

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Microalgae based wastewater treatment has attracted increasing attention for its many advantages in recent years. In this study, a novel microalgae biofilm membrane photobioreactor (BF-MPBR) was developed for the efficient microalgae cultivation and the removal of nutrient and sulfonamides (SAs) from marine aquaculture wastewater. Two BF-MPBRs with hydraulic retention time (HRT) of 1 day and 2 days respectively were continuously operated for 70 days without harvesting microalgae. Concentrated and attached culture of marine Chlorella vulgaris was achieved in these continuous flow BF-MPBRs due to the suspended solid carriers and microfiltration membrane module in the reactors. The algal biomass productivity achieved in BF-MPBRs with HRT of 1 day and 2 days were 14.02 and 22.03mgL(-1) day(-1), respectively. In addition, at the end of the cultivation, 60.4% and 45.0% of microalgae were fixed into algal biofilm in BF-MPBRs with 1 day and 2 day HRT, respectively. Compared with batch cultivation, more efficient nutrient and SAs removal performance was achieved in BF-MPBRs, although the HRT of the BF-MPBRs used in this study was only 1 or 2 days. During the stable operation stage of the BF-MPBRs, the reduction in dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), sulfadiazine (SDZ), sulfamethazine (SMZ) and sulfamethoxazole (SMX) were found in the range of 91.0-99.6%, 92.1-98.4%, 61.0-79.2%, 50.0-76.7% and 60.8-82.1%, respectively. Therefore, nutrient and SAs were simultaneously and efficiently removed from marine aquaculture wastewater by microalgae cultivation in BF-MPBR. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：11