从藻-细菌颗粒污泥中分离的藻类处理废水的性能

Q1 Environmental Science

Bioresource Technology Reports Pub Date : 2025-03-31 DOI:10.1016/j.biteb.2025.102111

Zhuo Xie , Xiaoyu Zhao , Yuanyuan Jia , Yicong Li , Baibing Li , Zhenya Zhang , Zhongfang Lei , Tian Yuan , Kazuya Shimizu

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引用次数: 0

摘要

藻-细菌颗粒污泥（ABGS）系统是一种创新的污水处理技术。为了探索ABGS中藻类的废水处理潜力，本研究从ABGS中分离出不同种类的藻类，并对其在生活污水处理过程中的营养去除、可收获性和生化组成进行了评价。鉴定出丝状藻（leptolyynbya sp. ABGS1, Stigeoclonium sp. ABGS2）和微藻（Chlorella sp. ABGS3, Scenedesmus obliquus ABGS4, Neochloris sp. ABGS5） 5种。在污水处理过程中，微藻表现出优异的营养物质去除效率（如氨氮：99.9%，正磷酸盐：869 - 99.2%），丝状藻表现出优异的收获性（100%）和高有机碳去除效率（55.4 - 57.2%）。微藻Neochloris sp. ABGS5的生物量最高（1572 mg/L），具有良好的收获率（93.4%）和去除营养物的能力，在生活污水处理中具有很大的潜力。该研究突出了不同藻类的独特优势，为改进可持续废水处理技术提供了理论指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Wastewater treatment performance of algal species isolated from algal-bacterial granular sludge

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Wastewater treatment performance of algal species isolated from algal-bacterial granular sludge

The algal-bacterial granular sludge (ABGS) system is an innovative technology for wastewater treatment. To explore the wastewater treatment potential of algae in ABGS, this study isolated different algal species from ABGS and evaluated their nutrient removal, harvestability, and biochemical compositions during domestic wastewater treatment. Five algal species, including filamentous algae (Leptolyngbya sp. ABGS1, Stigeoclonium sp. ABGS2) and microalgae (Chlorella sp. ABGS3, Scenedesmus obliquus ABGS4, Neochloris sp. ABGS5), were identified. During wastewater treatment, microalgae exhibited superior nutrient removal efficiencies (e.g., ammonia nitrogen: 99.9 %, orthophosphate: 86.9–99.2 %), while filamentous algae demonstrated excellent harvestability (100 %) and high organic carbon removal efficiencies (55.4–57.2 %). Microalga Neochloris sp. ABGS5 showed outstanding harvestability (93.4 %) and nutrient removal with the highest biomass production (1572 mg/L), showing great potential for domestic wastewater treatment. The study highlights the distinct advantages of different algal species and provides theoretical guidance for improving sustainable wastewater treatment technologies.

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