Study on Migration of Different Salt Ions in Melting and Infiltration Processes of Saline Water Ice

doi:10.3969/j.issn.1000-7091.2012.01.039

Abstract

Abstract: Simulation and field experiments were conducted to investigate the migration of different salt ions in melting and infiltration processes of saline water ice. The aim of these experiments is to reveal the mechanism of water quality changes in ice melting and the distribution of different ions in different soil depth. The results showed that the content of all salt ions decreased rapidly during ice melting process. However, different ions leached in different rate. The sequence of different ions leaching ratio from high to low was Cl^->Mg²⁺>K⁺>Na⁺>SO₄^2->Ca²⁺>HCO₃^-. The difference of ions leaching rate leaded to changes of ions composition in melted water, which reduced sodium adsorption ratio and increased water pH eventually. After irrigation with freezing saline water, all salt ions of soil(0 ～ 80 cm) were decreased except HCO₃^-, which increased by 6. 85%. The sequence of ions leaching ratio from high to low was Mg²⁺>Cl^->Ca²⁺>Na⁺>K⁺>SO₄^2->HCO₃^-. Although the leaching ratios of Cl^- and Na⁺ were not the highest, their proportions reached 62. 01% and 21. 96% in total leaching salt, respectively. Irrigation with freezing saline water changed the ion composition of soil and resulted in alkaline trend in the surface soil. Therefore, freezing irrigation with saline water should be assorted with some measures to prevent soil alkalization.

Key words: Saline water ice, Melting, Coastal saline soil, Migration of salt ions

CLC Number:

PAN Jie, XIAO Hui, WANG Li-yan, CHENG Wen-juan, LU Wen-long. Study on Migration of Different Salt Ions in Melting and Infiltration Processes of Saline Water Ice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(1): 210-214. doi: 10.3969/j.issn.1000-7091.2012.01.039.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.3969/j.issn.1000-7091.2012.01.039

http://www.hbnxb.net/EN/Y2012/V27/I1/210

References

[1] 赵聚宝,李克煌.干旱与农业[M] 北京:中国农业出版社,1995:333-334.
[2] 钱正英,张光斗.中国可持续发展水资源战略研究综合报告及各专题报告[M] 北京:中国水利水电出版社,2OOl:2-58.
[3] 潘家铮,张泽祯.中国北方地区水资源的合理配置和南水北调问题[M] 北京:中国水利水电出版社,2001:3-37
[4] Thompson T G,Nelson K H.Desalting sea water by freezing[J] Refrig Eng,1954,62:44-48.
[5] Hendrickson H M,Moulton R W.Research and development of processes for desalting water by freezing[R] Washington D C:R and D Report No.10,Office of Saline Water,US Department of Commerce,1956.
[6] Snyder A E.Desalting water by freezing[J] Sci Amer,1962,207(6):41-47.
[7] Wiegandt H F,Harriott P,Leinroth J P.Desalting of seawater by freezing[R] Washington D C:Office of Saline Water,US Department of the Interior,1968.
[8] Gao W,Smith D,Li Y.Natural freezing as a wastewater treatment method:E coli inactivation capacity[J] Water Res,2006,40(12):2321-2326.
[9] 史培军,哈斯,袁艺,等.渤海海冰作为淡水资源:脱盐机理与可利用价值[J] 自然资源学报,2002,17(3):353-360.
[10] 张国明,张峰.开发海冰水资源及改良滨海盐碱土的研究[J] 安徽农业科学,2009,37(23):11139-11141.
[11] 许映军,李宁,顾卫,等.控温法海冰冻融固态脱盐技术研究[J] 应用基础与工程科学学报,2006,14(4):470-478.
[12] 王双合,罗从双,陈颂平,等.苦咸水冷冻淡化实验成果分析及实用方法研究[J] 水资源保护,2009,25(1):70-73.
[13] 乌志明,邓小川.盐水冷冻淡化研究[J] 无机盐工业,2001,33(2):6-8.
[14] Li Z G,Liu X J,Zhang X M.Infiltration of melting saline ice water in soil columns:Consequences on soil moisture and salt content[J] Agricultural water management,2008,95:498-502.
[15] 李志刚,刘小京,张秀梅,等.冬季咸水结冰灌溉对土壤水盐运移的初步研究[J] 华北农学报,2008,23(增刊):187-192.
[16] 郭凯,张秀梅,李向军,等.冬季咸水结冰灌溉对滨海盐碱地的改良效果研究[J] 资源科学,2010,32(3):431-435.
[17] 郭凯,张秀梅,李向军,等.不同钠吸附比的咸水结冰融水入渗对苏打碱土的水盐运移影响[J] 水土保持学报,2010,24(4):94-98.
[18] 王丹,康跃虎,万书勤.微咸水滴灌条件下不同盐分离子在土壤中的分布特征[J] 农业工程学报,2007,23(2):83-87.

Please choose a citation manager

Content to export