PURIFICATION EFFECT OF FOUR PLANT COMBINATIONS ON COMBINED WATER POLLUTION OF EUTROPHICATION AND HEAVY METALS

PAN Xia; YE Shufan; ZHENG Xiaocha; MA Tingting

doi:10.13205/j.hjgc.202307010

Volume 41 Issue 7

Jul. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(7): 69-75

PAN Xia, YE Shufan, ZHENG Xiaocha, MA Tingting. PURIFICATION EFFECT OF FOUR PLANT COMBINATIONS ON COMBINED WATER POLLUTION OF EUTROPHICATION AND HEAVY METALS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 69-75. doi: 10.13205/j.hjgc.202307010

Citation:

PAN Xia, YE Shufan, ZHENG Xiaocha, MA Tingting. PURIFICATION EFFECT OF FOUR PLANT COMBINATIONS ON COMBINED WATER POLLUTION OF EUTROPHICATION AND HEAVY METALS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 69-75. doi: 10.13205/j.hjgc.202307010

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PURIFICATION EFFECT OF FOUR PLANT COMBINATIONS ON COMBINED WATER POLLUTION OF EUTROPHICATION AND HEAVY METALS

doi: 10.13205/j.hjgc.202307010

PAN Xia^1,4,
YE Shufan²,
ZHENG Xiaocha¹,
MA Tingting^{3,4
,
,}

1. College of Optoelectronic Manufacturing, Zhejiang Industry & Trade Vocational College, Wenzhou 325000, China;
2. Zhejiang Zhonglan Environmental Technology Co., Ltd., Wenzhou 325000, China;
3. College of Resource Environment and Tourism, Hubei University of Arts and Science, Xiangyang 441053, China;
4. Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China

Received Date: 2022-11-29

Abstract

Abstract

In this study, four kinds of native plants in central China including Lolium multifolorum, Alopecurus pratensis L., Pteris vittata L., and Acorus gramineus were selected as research objects. Laboratory hydroponic experiments were conducted to study the purification effect of the combined water pollution of eutrophication and heavy metals. The result showed that all the four plant combinations had good removal effects on TN, TP, Cd and Pb in combined water pollution of eutrophication and heavy metal under different concentration gradients, and different plant combinations presented different removal effects. After 30 days of remediation, the average removal rates of the plant combinations in low concentration sewage for TN, TP, Cd and Pb were 88.68%~93.66%, 64.00%~83.02%, 83.84%~93.62% and 95.07%~98.02%, respectively. And the average removal rates in high concentration sewage were 94.49%~97.11% to TN, 92.85%~94.15% to TP, 63.01%~81.42% to Cd, and 88.56%~91.64% to Pb. The intercropping of Lolium multifolorum and Acorus gramineus had the best treatment performance. The bioconcentration factor of four kinds of plants on Cd and Pb was greater than 1, which meant a strong accumulation ability of plants on heavy metals. The accumulation ability of plants on Cd and Pb in low concentration sewage was far greater than those in high concentration sewage. The enrichment ability of Pb was stronger than Cd for the same plant, significantly.
- plant combination,
- eutrophication,
- heavy metal,
- combined pollution,
- phytoremediation

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References(42)

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