Research on Desorption of Suspended Sediments to TN and TP in Waizhou Reach-Reference-Cited by-同舟云学术

Research on Desorption of Suspended Sediments to TN and TP in Waizhou Reach

Published:2014-09 Issue: Volume:641-642 Page:1155-1158
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Gao Gui Qing¹,Ju Hai Yan¹,Zhou Hao²,Liu Su Su²

Affiliation:

1. Nanchang Institute of Technology

2. Nanchang University

Abstract

The physical and chemical characteristics of suspended sediment in Waizhou reach are studied.The particle size is between 0.005-0.75mm.The pH value of sediment sample is 7.1.The desorption experiment after adsorbing total nitrogen(TN) and total phosphorus(TP) saturated was carried out.The experimental results show the desorption of sediment on TN and TP reaches basic equilibrium about 8h.Desorption capacity decreases with the increase of sediment concentration.Desorption process is completed by two steps.The first step is physical desorption process quickly.The second step is chemical desorption and belongs to the process of slow response.Using the Langmuir model can better simulate the process of desorbing.The correlation coefficients of fitting with TN and TP are above 0.8 and 0.75 respectively.The higher the sediment concentration, the better fitting effect.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.641-642.1155.pdf

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