Combined application of compound algicide and submerged plants for algal bloom control and eutrophic water remediation

LI Xiaozhen; LI Wei; HUO Bintang; SHENG Weijing; DAI Taotao; ZHONG Jiayou; DAI Guofei; CHEN Yuwei

doi:10.13205/j.hjgc.202608013

Volume 44 Issue 8

Aug. 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(8): 141-148

LI Xiaozhen, LI Wei, HUO Bintang, SHENG Weijing, DAI Taotao, ZHONG Jiayou, DAI Guofei, CHEN Yuwei. Combined application of compound algicide and submerged plants for algal bloom control and eutrophic water remediation[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(8): 141-148. doi: 10.13205/j.hjgc.202608013

Citation:

LI Xiaozhen, LI Wei, HUO Bintang, SHENG Weijing, DAI Taotao, ZHONG Jiayou, DAI Guofei, CHEN Yuwei. Combined application of compound algicide and submerged plants for algal bloom control and eutrophic water remediation[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(8): 141-148. doi: 10.13205/j.hjgc.202608013

Citation:

LI Xiaozhen, LI Wei, HUO Bintang, SHENG Weijing, DAI Taotao, ZHONG Jiayou, DAI Guofei, CHEN Yuwei. Combined application of compound algicide and submerged plants for algal bloom control and eutrophic water remediation[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(8): 141-148. doi: 10.13205/j.hjgc.202608013

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Combined application of compound algicide and submerged plants for algal bloom control and eutrophic water remediation

doi: 10.13205/j.hjgc.202608013

1. Jiangxi Key Laboratory for Intelligent Monitoring and Integrated Restoration of Watershed Ecosystem, Nanchang Institute of Technology, Nanchang 330099, China;
2. Jiangxi Key Laboratory of Watershed Soil and Water Conservation, Jiangxi Academy of Water Science and Engineering, Nanchang 330029, China

Received Date: 2025-01-18

Abstract

Abstract

To investigate the effects of the algicide combined with submerged plants on inhibiting algal blooms and restoring eutrophic water bodies， as well as the influence of the algicide on the growth and physiology of submerged plants， a compound algicide was prepared using Polyquats-GreatAp126 （PQGA-126）， polyaluminum chloride （PAC）， and red soil. Two submerged plant species， Vallisneria natans and Hydrilla verticillata， were selected for the study. Eutrophic algae-containing water collected from Nanhu Lake in Gongqingcheng City， Jiangxi Province， was used as the research subject. The following treatment groups were established： a control group （CK）， a V. natans group （Vn）， an H. verticillata group （Hv）， a compound algicide group （PPS）， an algicide + V. natans group （PVn）， and an algicide + H. verticillata group （PHv），to conduct indoor static simulation cultivation experiments. The results showed that the combined treatments of the compound algicide with the two submerged plants significantly reduced the concentrations of TN， TP， Chl-a， and water turbidity. This approach substantially decreased the eutrophication level within a short period， and the restoration effect was significantly superior to that of the individual application of either V. natans or H. verticillata. Moreover， the combined application with V. natans resulted in a more pronounced reduction in the comprehensive trophic state index of the water body. Furthermore， the compound algicide significantly enhanced the growth rate of V. natans and the catalase activity of H. verticillata， indicating that V. natans is more adaptable to the compound algicide.
- submerged plants,
- algal blooms,
- organic matter,
- eutrophication,
- algae removal

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References(27)

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