Harvesting of microcells from cyanobacteria-laden water by energy-efficient electro-flocculation -flotation (EFF) with Aluminum hydrates

doi:10.1016/j.jwpe.2023.103585

淡江大學機構典藏 > 工學院 > 水資源及環境工程學系暨研究所 > 期刊論文 > Item 987654321/123105

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/123105

题名:	Harvesting of microcells from cyanobacteria-laden water by energy-efficient electro-flocculation -flotation (EFF) with Aluminum hydrates
作者:	Linl, r-Lin;Sidik, Fahrudin;Kang, Shyh-Fang
关键词:	Microcystis aeruginosa;Electrocoagulation;Aluminum hydrates;Energy input
日期:	2023-02-17
上传时间:	2023-04-28 16:58:24 (UTC+8)
出版者:	Elsevier
摘要:	Electrocoagulation-flotation (ECF) is able to effectively harvest microcells from eutrophicated drinking water reservoirs to reduce algogenic organic matter (AOM) during cyanobacteria blooming. However, ECF needs high current density (CD) and prolonged reaction time with inevitable high-energy consumption. This study aimed to investigate a novel electrocoagulation-flocculation-flotation (EFF) process, with 10 min EC reaction and 15 min flocculation followed by 10 min flotation, for Microcystis aeruginosa (MA) cell harvesting from water as well as AOM reduction with Al hydrates at various CD and pH conditions. The results have shown that significant MA cell separation and dissolved organic carbon (DOC) reduction by EFF occurred at pH 8 with 5 mA/cm2, accounting for 95 % and 56 %, respectively. At such a condition, the formation of dominant colloidal Al species(Alc) governed the EFF to promote cells and AOM destabilization by strong sweep flocculation along with weak charge neutralization by polymeric Al species (Alb). Moreover, the pronounced reduction in soluble microbial product-like (SMPL) substances could be further improved by up to 60 % with EFF. It was also found that EFF required only 2.07 × 10− 2 kWh/kg in energy input and served energy saving ~63 % less than that by prolonged ECF at similar MA cell separations. It concluded that EFF was an energy-efficient technique to fast separate and harvest microcells from MA-laden water and AOM reduction with low energy input for practical application in drinking water treatment.
關聯:	Water Process Engineering 52, 103585
DOI:	10.1016/j.jwpe.2023.103585
显示于类别:	[水資源及環境工程學系暨研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	127	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章

数据加载中.....