在膜光生物反应器中的二次废水中有效去除的Chlorella protinosa的高生物质产量
Min Yang1, Zhen Liu2, Aijie Wang3
1School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; BIOMATH, Department of Data Analysis and Mathematical Modelling, Ghent University, Gent B 9000, Belgium.
Journal of environmental sciences (China)
|July 5, 2024
概括
膜光生物反应器中的短液压保留时间 (HRT) 增强了Chlorella proteinosa的生长和从废水中去除营养. 较低的HRT提高了微藻生物质产量,并改善了总,氨和化学氧需求的去除率.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 水处理 处理水的方法
背景情况:
- 二次排水带来了水缩的风险.
- 在将废水排放到水体之前,需要进一步处理.
- 微藻种植为废水中营养物质的去除提供了一个可持续的解决方案.
研究的目的:
- 研究液压保留时间 (HRT) 对微藻生物质产量和营养物质去除的影响.
- 优化Chlorella proteinosa在膜光生物反应器中的培养,用于二次废水处理.
- 评估不同HRT的总,氨和化学氧需求 (COD) 的去除效率.
主要方法:
- 在膜光生物反应器中培养Chlorella proteinosa.
- 改变液压保留时间 (HRT) 来研究其影响.
- 测量微藻生物质产量和废水中的营养度.
主要成果:
- 较低的HRT (8小时) 减少可溶性藻类产品,缓解生长抑制.
- 减少HRT提高了Chlorella proteinosa的生产力,从6.12毫克/升/天增加到20.18毫克/升/天.
- 在8小时HRT的最高清除率:19.7 mg/L/day (TN),23.8 mg/L/day (氨),105.4 mg/L/day (COD).
- 在8小时HRT时,最大氨去除率达到99.2%.
- 对于TN (74.5%) 和COD (82.6%) 的最高百分比去除率发生在24小时HRT时.
结论:
- 在膜光生物反应器中优化HRT对于使用Chlorella proteinosa.有效处理废水至关重要.
- 较短的HRT (例如8小时) 促进了更高的生物质生产率和关键污染物的去除率.
- 这种方法提供了一种有前途的方法,通过先进的二次废水处理来减轻水的环保.
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