利用海洋微藻预处理盐性抗生素废水。
Pretreatment of saline antibiotic wastewater using marine microalga.
机构信息
Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Dr. 2, Singapore 117576, Singapore.
Department of Environmental Science, China Pharmaceutical University, 210009 Nanjing, China.
出版信息
Bioresour Technol. 2018 Jun;258:240-246. doi: 10.1016/j.biortech.2018.02.110. Epub 2018 Feb 24.
A green microalga Chlorella sp. isolated from marine environment was investigated for its potential to pretreat saline antibiotic wastewater containing amoxicillin (AMX). Through Biolog EcoPlate assay, the Chlorella sp. showed its unique carbon source metabolic patterns under autotrophic condition. In addition, the microalga could effectively remove AMX (>99%) under initial AMX concentrations ranging from 10 to 150 mg/L through a treatability test. In the continuous AMX treatment using a lab-scale membrane photobioreactor (MPBR), a stable AMX removal efficiency of 85.6 ± 3.8% was observed. Moreover, with the aid of a subsequent bacterial treatment, the microalgal-bacterial process (the Chlorella sp. pretreatment followed by either intertidal wetland sediment or activated sludge) can achieve simultaneous AMX removal of >99% and total organic carbon (TOC) removal of ∼80%. In general, the microalgal pretreatment showed its great potential in effective removal of antibiotic residues, which could greatly enhance the overall treatment efficiency of saline antibiotic wastewater.
从海洋环境中分离得到的一种绿色微藻小球藻被研究用于预处理含有阿莫西林（AMX）的含盐抗生素废水的潜力。通过 Biolog EcoPlate 分析，小球藻在自养条件下表现出独特的碳源代谢模式。此外，在初始 AMX 浓度范围为 10 至 150mg/L 的处理能力测试中，微藻可以有效地去除 AMX（>99%）。在使用实验室规模膜光生物反应器（MPBR）的连续 AMX 处理中，观察到稳定的 AMX 去除效率为 85.6±3.8%。此外，借助随后的细菌处理，微藻-细菌工艺（小球藻预处理，然后是潮间带湿地沉积物或活性污泥）可以实现>99%的 AMX 去除和约 80%的总有机碳（TOC）去除。总的来说，微藻预处理在有效去除抗生素残留方面表现出巨大的潜力，这可以大大提高含盐抗生素废水的整体处理效率。
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