Open AccessExperiments of Water Quality Monitoring and Sediment Pollution Release in Shamao River
Author(s) -
Qin Lu,
Yuqi WangRong Xu,
Kui Xu,
Wenjun Xia,
Junxia Liu,
Yanxiang Liu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/668/1/012039
Subject(s) - sediment , water quality , environmental science , pollution , pollutant , phosphorus , hydrology (agriculture) , water pollution , environmental chemistry , water body , environmental engineering , chemistry , geology , ecology , paleontology , geotechnical engineering , organic chemistry , biology
The Shamao River is an urban river in Wuhan Economic Development District, which water body is under heavy polluted. A whole year water quality monitoring was carried out in 2019, and the corresponding results showed that the water quality of Shamao river was lower than class V bad water quality. The sediment and overlying water samples were collected. Qualified and analyzed pollution indicators, including COD, ammonia nitrogen (NH 3 -N) and total phosphorus (TP). The influence of pollutant in water released from sediment was analyzed through laboratory water column simulation experiment. It was found that there was no correlation between concentrations of COD, NH 3 -N in sediment and corresponding concentrations in overlying water samples. The amount of total phosphorus (TP) in water samples are related to the amount of sediments. Simulated sediment pollution releasing experiments showed that the COD in sediment had weak effect on water quality. The releasing of nitrogen and phosphorus from the sediment increased with time, caused the secondary pollution of the water body.