EFFECT OF BUOY-BEAD MATERIAL ON <i>CHLORELLA VULGARIS</i> HARVESTING PERFORMANCE DURING FLOTATION

WEN Hao; YAN Yuting; ZHONG Jiewen; ZHANG Haowen; YIN Hongwei; TIAN Siyu

doi:10.13205/j.hjgc.202211004

Volume 40 Issue 11

Nov. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(11): 26-31

WEN Hao, YAN Yuting, ZHONG Jiewen, ZHANG Haowen, YIN Hongwei, TIAN Siyu. EFFECT OF BUOY-BEAD MATERIAL ON CHLORELLA VULGARIS HARVESTING PERFORMANCE DURING FLOTATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(11): 26-31. doi: 10.13205/j.hjgc.202211004

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WEN Hao, YAN Yuting, ZHONG Jiewen, ZHANG Haowen, YIN Hongwei, TIAN Siyu. EFFECT OF BUOY-BEAD MATERIAL ON CHLORELLA VULGARIS HARVESTING PERFORMANCE DURING FLOTATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(11): 26-31. doi: 10.13205/j.hjgc.202211004

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EFFECT OF BUOY-BEAD MATERIAL ON CHLORELLA VULGARIS HARVESTING PERFORMANCE DURING FLOTATION

doi: 10.13205/j.hjgc.202211004

School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China

Received Date: 2021-07-26
Available Online: 2023-03-24

Abstract

Abstract

Buoy-bead flotation is a new microalgae harvesting method at present. The bead material has an important effect on harvesting efficiency. In order to achieve a high-efficiency bead material and mechanism during flotation, the study chose Chlorella vulgaris as the flotation microalgae and sodium borosilicate, hollow glass, fly ash and latex as the bead material. The experimental results showed that the harvesting efficiency of sodium borosilicate could achieve 63.24% without flotation reagent. The sodium silicate borate material could achieve high harvesting efficiency, because there was a secondary minimum at 16.6 nm during adhesion with microalgae. Sodium silicate had a strong hydrophobicity, which was easy to adhere to Chlorella vulgaris. Sodium silicate also had high surface roughness, which provided more binding sites. The two reasons were also important factors of high Chlorella vulgaris harvesting efficiency
- buoy-bead flotation method,
- bead material,
- Chlorella vulgaris,
- harvesting,
- function mechanism

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References(23)

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