| 微动力曝气SBR工艺脱氮除碳及降解SDBS动力学研究 |
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| 引用本文： | 黄七梅,肖鹰,赵振东,李嘉诚,冯玉红.微动力曝气SBR工艺脱氮除碳及降解SDBS动力学研究[J].热带生物学报,2021,12(2):244-252. |
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| 作者姓名： | 黄七梅 肖鹰 赵振东 李嘉诚 冯玉红 |
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| 作者单位： | 海南大学化学工程与技术学院,海口 570228;光大环保能源(陵水)有限公司,海南陵水 572400;海南师范大学化学与化工学院/海口市天然高分子功能材料重点实验室,海口 571158;海南大学分析测试中心,海口 570228 |
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| 基金项目： | 海南省重点研发计划（ZDYF2018107） |
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| 摘 要： | 为了设计建立一套基于跌水曝气的新型间歇式活性污泥床反应器，省去滗水器，采用跌水曝气代替机械曝气，实现微动力曝气，降低运行能耗，本实验重点研究反应器启动特性、运行效果及影响因素，探究对典型污染物阴离子表面活性剂的降解特性，利用SEM、FT-IR及UV-Vis等技术进行表征，并对其生物降解动力学进行分析。结果表明，经150 d的启动驯化，反应器出水的COD、TN、NH4+-N质量浓度分别为10、4.0、3.4 mg·L?1，去除率分别达94.0%、88.2%及86.9%，与传统SBR工艺相比，TN的去除率提高了21.2%；循环上流速度控制在4.52 m·h?1为宜（回流比R=1.8∶1，水力停留时间t=3 d）；该反应器对典型污染物阴离子表面活性剂的降解率达81.3%；降解过程符合微生物一级降解动力学方程。
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| 关 键 词： | 间歇式活性污泥床反应器 污水处理 阴离子表面活性剂 活性污泥 生物降解 |
| 收稿时间： | 2020-12-30 |
Kinetics of Nitrogen and Carbon Removal and Degradation of SDBS in SBR Process with Micro-power Aeration |
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| Institution: | 1.School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan 570228, China2.Everbright Environmental Protection Energy (Lingshui) Co., LTD, Lingshui, Hainan 572400, China3.College of Chemistry and Chemical Engineering, Hainan Normal University/ Haikou Key Laboratory of Natural Polymer Functional Material, Haikou, Hainan 571158, China4.Analytical and Testing Center, Hainan University, Haikou, Hainan 570228, China |
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| Abstract: | A novel sequencing batch reactor (SBR) based on falling aeration was designed and built for wastewater treatment with anionic surfactants without the decanterto realize micro-dynamic aeration to reduce energy consumption. The starting process, operation effect and influencing factors of the SBR were investigated, and the degradation characteristics of anionic surfactants were discussed. Activated sludge was analyzed in terms of biodegradation kinetics, and characterized by using SEM, FT-IR and UV-Vis. The results showed that the COD, TN and NH4+-N concentrations of the effluent from the novel SBR reactor were 10, 4.0 and 3.4 mg·L?1, respectively after the sludge were activated for 150 days, with their removal rates being 94.0%, 88.2% and 86.9%, respectively. The novel SBR process was 21.2% higher in removal rates of TN than compared with the traditional SBR process. The circulating upflow air velocity of the SBR process was controlled at 4.52 m·h?1 (Reflux ratio R=1.8∶1; hydraulic retention time T=3 days). The degradation rate of typical pollutant anionic surfactant in the novel SBR reactor was 81.3%. The degradation process conforms to the first-order biodegeneration kinetic equation. |
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