The algal barrier at the water source was considered as the research object. The filtering and interception effects of the barrier on algae were investigated in details. It was explored that the main factors affecting the pollution interception effects of the barrier and the mechanism of the filtering and interception processes of the barrier through experimental simulation. The cleaning and recycling performances of the barrier were studied. By setting up an algal barrier in the field, the total amount of change was compared in algae before and after filtering by the barrier, and the actual algae removal ability of the barrier was verified. The experimental results showed that the water source containment had an interception effect on the algae in the water. There was a large difference in the total amount of algae before and after the containment. In the range of 0$\sim$0.03 m$^3$/(m$^2\cdot$s), the higher the through-water flux, the lower was the algae removal efficiency. Beyond 0.03 m$^3$/(m$^2\cdot$s), the removal rate was less than 5%. In the 10$\sim$60 NTU range, the higher the turbidity, the better was the algae removal effect. Chlorophyll a concentration did not have a significant effect on the perimeter filter interception. The filter cake filtration model was the main pollution interception mechanism in perimeter filtration and had good cleaning and recycling abilities.
ZHANG Li
,
SONG Yichao
,
PU Yunzhu
,
NI Congcong
,
DENG Ning
,
HUANG Xin
. Analysis of the effects and mechanism of algae barrier interception in water source sites[J]. Journal of Shanghai University, 2026
, 32(2)
: 324
-332
.
DOI: 10.12066/j.issn.1007-2861.2512
[1] Wu B L, Wan J, Zhang Y Y, et al. Selective phosphate removal from water and wastewater using sorption: process fundamentals and removal mechanisms [J]. Environmental Science & Technology, 2020, 54(1): 50-66.
[2] Xiong J, Wang X C, Zhang Q, et al. Characteristics of a landscape water with high salinity in a coastal city of China and measures for eutrophication control [J]. Ecological Indicators, 2016, 61: 268-273.
[3] Conley D J, Paerl H W, Howarth R W, et al. Ecology controlling eutrophication: nitrogen and phosphorus [J]. Science, 2009, 323(5917): 1014-1015.
[4] Haque F, Banayan S, Yee J, et al. Extraction and applications of cyanotoxins and other cyanobacterial secondary metabolites [J]. Chemosphere, 2017, 183: 164-175.
[5] He L, Lin Z, Wang Y, et al. Facilitating harmful algae removal in fresh water via joint efiects of multi-species algicidal bacteria [J]. Journal of Hazardous Materials, 2021, 403: 123662.
[6] 朱桂娥, 胡静. 前置库拦藻帘在金鸡湖水环境改善中的研究应用[J]. 吉林水利, 2020(1): 42-46.
[7] 赵欣胜, 崔丽娟, 李伟, 等. 太湖三山岛生态湿地设计及其效果评价[J]. 中国园林, 2018, 34(4): 30-35.
[8] 张路, 范云龙, 杜应旸, 等. 生态围隔对水源地水质的改善效果[J]. 环境监测管理与技术, 2013, 25(1): 49-54.
[9] 曾甜甜. 滆湖控藻网围内外和工程示范区后生浮游动物群落结构的对比研究[D]. 上海: 上海海洋大学, 2015.
[10] 刘波, 崔莉凤, 刘载文. 北京市城区地表水体叶绿素a与藻密度相关性研究[J]. 环境科学与技术, 2008, 31(8): 29-33.
[11] Sun Y, Ren M, Sun W, et al. Plasma-induced synthesis of chitosan-g-polyacrylamide and its flocculation performance for algae removal [J]. Environmental Technology, 2019, 40(8): 954-968.
[12] 郭颖赫, 赫伟东, 柳静献. 纳米纤维膜对滤料性能影响的实验研究[J]. 东北大学学报(自然科学版), 2018, 39(11): 1662-1666.
[13] Ren J, Li J, Chen Z, et al. Fate and wetting potential of bio-refractory organics in membrane distillation for coke wastewater treatment [J]. Chemosphere, 2018, 208: 450-459.
[14] Li L, Wang Z, Rietveld L C, et al. Comparison of the efiects of extracellular and intra-cellular organic matter extracted from Microcystis aeruginosa on ultraflltration membrane fouling: dynamics and mechanisms [J]. Environmental Science & Technology, 2014, 48(24): 14549-14557.
[15] 韩绍弘, 宋一超, 朱宜平, 等. 水源水库围隔对水中藻分布特征的影响[J]. 给水排水, 2021, 57(S1): 72-78.
