ZHANG Xiaojing, WEI Denghui, CHEN Zhao, et al. Research on the distribution law of organic matter,nitrogen and sulfur pollutants in urban channel[J]. Journal of Light Industry, 2021, 36(1): 51-57. doi: 10.12187/2021.01.007
Citation:
ZHANG Xiaojing, WEI Denghui, CHEN Zhao, et al. Research on the distribution law of organic matter,nitrogen and sulfur pollutants in urban channel[J]. Journal of Light Industry, 2021, 36(1): 51-57.
doi:
10.12187/2021.01.007
Research on the distribution law of organic matter,nitrogen and sulfur pollutants in urban channel
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College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
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Received Date:
2020-05-27
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Abstract
To understand the pollutants distribution of in the urban channel,5 sampling points were set in a certain reach of an urban channel,and parameters including DO,pH value,and temperature were measured on site in four seasons.The distribution of organic matter,nitrogen and sulfur pollutants in overlying water,pore water and sediment were measured.Results showed that the dissolved oxygen and temperature fluctuated in different seasons,while pH was always in weak alkaline.The organic matter,ammonia nitrogen,nitrate nitrogen,sulfate existed in the urban channel.Among them,the content of organic matter in the sediment was relatively small,which mainly existed in the overlying water and pore water,and varied greatly along the season.The concentration was distributed in 10.0~99.6 mg/L and 21.2~85.2 mg/L,respectively.Ammonia nitrogen mainly existed in pore water,and its content was relatively high in spring and summer,with the average value reaching to 173.7 mg/L in summer.Ammonia nitrogen content increased in the sediment to 1.34 mg/L and 1.42 mg/g,respectively in autumn and winter.Nitrate nitrogen mainly existed in the sediment,and its concentration was relative high in spring and autumn,with the average value as 2.84 mg/g and 2.27 mg/g,respectively.The distribution of sulfate was positively correlated with ammonia nitrogen,which also mainly existed in pore water.Sulfate in the pore water showed a similar variation trend with ammonia in different seasons,which reached the highest value as 600.3 mg/L in Summer,and correspondingly got the lowest value in sediment as 0.57 mg/g.
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Proportional views
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