WANG Wen huai,WANG Yi,WEI Cun zhi,et al.Effect of Enhanced Spirogyra Floating Bed on Purification of Landscape Water Supplied with Reclaimed Water[J].China Water & Wastewater,2018,34(21):59-63.
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Effect of Enhanced Spirogyra Floating Bed on Purification of Landscape Water Supplied with Reclaimed Water

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 59-63 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0059-05
Author(s):
WANG Wen huai1; WANG Yi1; WEI Cun zhi1; YUAN Luo wei1; 2
(1. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2. Xi’an Qingyuan Wastewater Treatment and Reuse Co. Ltd., Xi’an 710086, China)
Keywords:
landscape water; reclaimed water; enhanced Spirogyra floating bed; intermediate low temperature; purification
CLC:
YU992.3
Document code:
C
Abstract:
A floating bed system vegetated with calamus was built in a simulated landscape water supplied with reclaimed water, and an enhanced floating bed system with Spirogyra planted in a cage was established to explore its purification effect on the simulated urban landscape water under intermediatelow temperature. The results indicated that Spirogyra had obvious inhibitory effect on growth of Microcystis aeruginosa and the enhanced floating bed could reduce algae density and chlorophylla (Chl-a) concentration of simulated urban landscape water. During 60 days of continuous operation under intermediate low temperature, the average values of algae density and Chl a concentration in the enhanced floating bed water were 1.57×104 cells/mL and 5.59 μg/L, which were 34.28% and 54.54% of the corresponding values in the floating bed water, and 4.89% and 14.44% of that in the controlling water. On the other hand, the enhanced Spirogyra floating bed had a high removal efficiency of nitrogen and phosphorus in the simulated urban landscape water. The concentrations of TN, NH+4-N and NO-3-N were reduced to 0.20 mg/L, 0.08 mg/L and 0.06 mg/L after 60 days of operation when the corresponding background concentrations were 7.52 mg/L, 1.71 mg/L and 5.53 mg/L, respectively. Meanwhile, the concentrations of TP and PO3-4-P were reduced to 0.01 mg/L and below the detection limit after 60 days of operation when the corresponding background concentrations were 0.75 mg/L and 0.70 mg/L. In a word, the enhanced Spirogyra floating bed could effectively improve the water quality and inhibit algae growth of urban landscape water supplied with reclaimed water. Thus, the enhanced Spirogyra floating bed is an efficient method of controlling the landscape water quality, which can effectively prevent eutrophication of the urban landscape water.

References:


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Memo

基金项目：陕西省自然科学基础研究基金重点资助项目(2016JZ019)
作者简介： 王文怀（1994- ），男，陕西渭南人，硕士，研究方向为景观水体修复技术。
E-mail:wangyi1003@sina.com
收稿日期：2018-05-18

Last Update: 2018-11-01