ABSTRACT Phenol removal from environmental solutions has attracted much attention due to phenol’s high toxicity, even at low concentrations. This study aims to reveal the phenol biodegradation capacity of Scenedesmus regularis. Batch system parameters (pH, amount of algal cell, phenol concentration) on biodegradation were examined. After 24 h of treatment, 92.16, 94.50, 96.20, 80.53, 65.32, 52 and 40% of phenol were removed by Scenedesmus regularis in aqueous solutions containing 5, 10, 15, 20, 30, 40 and 50 mg/L of phenol, respectively. To describe the correlation between degradation rate and phenol concentration, the Michaelis–Menten kinetic equation was used where Vmax and Km are 0.82 mg phenol g algea−1 h−1 and 24.97 ppm, respectively. Phenol remediation ability of S.regularis can enable the usage of the spent biomass as biofuel feedstock and animal feed makes it a ‘green’ environmental sustainable process. GRAPHICAL ABSTRACT

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栅栏菌苯酚降解能力的研究：工艺参数的影响

摘要 由于苯酚的高毒性，即使在低浓度下，从环境溶液中去除苯酚也引起了广泛关注。本研究旨在揭示栅栏藻的苯酚生物降解能力。检查了生物降解的批次系统参数（pH、藻细胞数量、苯酚浓度）。处理 24 小时后，在含有 5、10、15、20、30、40 和 50 毫克/升苯酚的水溶液中，规则栅藻去除了 92.16、94.50、96.20、80.53、65.32、52 和 40% 的苯酚分别。为了描述降解率和苯酚浓度之间的相关性，使用 Michaelis-Menten 动力学方程，其中 Vmax 和 Km 分别为 0.82 mg 苯酚藻-1 h-1 和 24.97 ppm。S的苯酚修复能力。regularis 可以将废弃的生物质用作生物燃料原料和动物饲料，使其成为“绿色”环境可持续过程。图形概要