Research on Inhibition Effect of Low Temperature and Short Illumination Time on Algal Growth

ZHANG Long; WANG Chun; ZHOU Ye; QI Leiqiang; GAO Feng; XU Jun

Volume 35 Issue 1

Mar. 2021

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Article Navigation > Journal of Shanghai University of Engineering Science > 2021 > 35(1): 48-52

ZHANG Long, WANG Chun, ZHOU Ye, QI Leiqiang, GAO Feng, XU Jun. Research on Inhibition Effect of Low Temperature and Short Illumination Time on Algal Growth[J]. Journal of Shanghai University of Engineering Science, 2021, 35(1): 48-52.

Citation:

ZHANG Long, WANG Chun, ZHOU Ye, QI Leiqiang, GAO Feng, XU Jun. Research on Inhibition Effect of Low Temperature and Short Illumination Time on Algal Growth[J]. Journal of Shanghai University of Engineering Science, 2021, 35(1): 48-52.

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Research on Inhibition Effect of Low Temperature and Short Illumination Time on Algal Growth

ZHANG Long^1
,,
WANG Chun¹,
ZHOU Ye¹,
QI Leiqiang¹,
GAO Feng^{2
,
,},
XU Jun³

1.
Shanghai Waterworks Fengxian Co., Ltd., Shanghai 201400, China
2.
College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
3.
Academy of Civil Engineering and Architecture, Nanyang Normal University, Nanyang 473061, China

Received Date: 2020-12-03
Publish Date: 2021-03-30

Abstract

Abstract

Algal breeding in water supply system bring a lot of harm to the production process of drinking water, especially for the pollution of sedimentation tanks has been paid more attention by water supply enterprises. Effects of different temperatures and illumination time on algal growth was studied. The results shows that the value of algal growth rate constant is reduced to 0.812 d⁻¹ by lowering the water temperature to 16℃, and algal growth can be further inhibited by shortening illumination time. According to the research results, the high pressure spray cooling device was installed in the sedimentation tank of the water plant for productive test and the results prove that the control rate of algae can reach 41.7% by using a high pressure spray device with the water surface temperature of 16℃ and the operation time of 20 h. The results can provide a demonstration for algal control in the sedimentation tanks of water supply plants in Shanghai and other areas.
- algal breeding,
- algal control rate,
- temperature,
- illumination,
- kinetic equation

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References(12)

References

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