EFFECTS OF ENVIRONMENTAL FACTORS ON THE RELEASE OF ORGANIC PHOSPHORUS FROM SOIL COVERED SEDIMENTS

GU Hao; ZHANG Wen; LIU Guo; CHEN Chun-mei; DENG Zhi-han; XIE Zhi-hao

doi:10.13205/j.hjgc.202005031

Volume 38 Issue 5

Aug. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(5): 179-184

GU Hao, ZHANG Wen, LIU Guo, CHEN Chun-mei, DENG Zhi-han, XIE Zhi-hao. EFFECTS OF ENVIRONMENTAL FACTORS ON THE RELEASE OF ORGANIC PHOSPHORUS FROM SOIL COVERED SEDIMENTS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 179-184. doi: 10.13205/j.hjgc.202005031

Citation:

GU Hao, ZHANG Wen, LIU Guo, CHEN Chun-mei, DENG Zhi-han, XIE Zhi-hao. EFFECTS OF ENVIRONMENTAL FACTORS ON THE RELEASE OF ORGANIC PHOSPHORUS FROM SOIL COVERED SEDIMENTS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 179-184. doi: 10.13205/j.hjgc.202005031

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EFFECTS OF ENVIRONMENTAL FACTORS ON THE RELEASE OF ORGANIC PHOSPHORUS FROM SOIL COVERED SEDIMENTS

doi: 10.13205/j.hjgc.202005031

GU Hao^1,2,
ZHANG Wen^{1,2
,
,},
LIU Guo^1,2,
CHEN Chun-mei^1,2,
DENG Zhi-han^1,2,
XIE Zhi-hao^1,2

1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China;
2. State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China

Received Date: 2018-10-09

Abstract

Abstract

Through the indoor simulation experiments, the effect of environmental factors on the release and conversion of OP in the sediment was studied. The results were gained as follows: the combining capping of river sand and red soil was the best way to control the release of OP in sediment; under the aerobic environment with T=25 ℃, the combination of sand and red soil capping can effectively control the release of organic phosphorus into the overlying water, and the content of OP in sediment increased, reducing the concentration of TP and DOP in overlying water. The environmental factors had the considerable impact on the conversion of moderately active phosphorus (MLOP) in the sediment, and the content of organic phosphorus and the ratio of OP/TP increased from inhibiting the MLOP conversion in the sediment. The correlation between alkaline phosphatase activity (APA) and various forms of phosphorus in the sediment showed that APA was positively correlated with TP and OP content in sediment, and APA could indicate the conversion process between various forms of phosphorus.
- in-situ capping,
- environmental factors,
- sediment,
- organic phosphorus,
- release

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References(15)

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