Study on Adsorption and Desorption of Suspended Sediments to Phosphorus in Ganjiang River

Abstract:

Based on isothermal adsorption experiment and adsorption/desorption kinetic experiment,the adsorption and desorption characteristics of suspended sediments in Ganjiang River to phophorus was studied.The results show the phosphorus adsorption of sediment reaches balance basically in 2~4h; the adsorption capacity is increased with the increment of the initial concentration of phosphorus,and decreased with the increment of sediment conentration. The isothermal adsorption of phosphorus by sediment can be fitted preferably by Langmuir and Freundlic model. The adsorption and desorption process can be fitted by Langmuir equation.The phosphorus desorption of sediment reaches balance basically in about 14h. The phosphorus desorption capacity of sediment is decreased with the increment of sediment concentration.

• Periodical: Advanced Materials Research (Volume 599)
• Pages: 669-672
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.599.669
• Online since: November 2012
• Authors: Qiu Lin Ouyang, Gui Qing Gao, Su Su Liu, Xiao Ling Shi, Hai Yan Ju
• Keywords: Desorption, Isothermal Adsorption, Phosphorus, Suspended Sediment

References

[1] Min Huang, Fuchun Zhou. Adsorption and release studies progress of nutrients by sediment. [J]. China water transportation, 2008, 8(11) : 184-185.

[2] Qiulin Ouyang, HongCheng, Xiangmin Gong. Dynamic analysis of couping relation between suspended load and soil and water loss of Ganjiang river in Jiangxi province[J]. Bulletin of soil and water consevation, 2007, 27 (6) : 134-137.

[3] Weiling Sun, Jinren Ni. Key problems of adsorption heavy metal by sediment [J]. Journal of sediment research, 2002, 3(6) : 53-59.

[4] Weiying Bao, Lingqing Ceng.Study on adsorption characters of toxic organic compounds by the Yellow River sediment [J]. The journal of Yellow River,1996, (7) : 21-22.