location: Current position: Home >> Scientific Research >> Paper Publications

Prediction and validation of calcium sulfate fouling trends in high salt seawater

Hits:

Indexed by:Journal Papers

Date of Publication:2019-09-15

Journal:Journal of Dalian University of Technology

Included Journals:PKU

Volume:59

Issue:5

Page Number:471-479

ISSN No.:1000-8608

Key Words:CaSO4;海水;饱和指数;结垢;脱盐

Abstract:采用Oddo-Tomson饱和指数法对CaSO4的结垢趋势和Mg2+浓度对CaSO4结垢的影响进行预测.研究了温度为90℃ 时,不同盐度的海水在静态和动态条件下,钛管表面CaSO4的结垢情况,得出了Oddo-Tomson饱和指数法在高盐海水中结垢趋势的预测范围.结果表明,盐度为6% 时,采用Oddo-Tomson饱和指数法预测CaSO4的结垢趋势与天然海水的实验结果吻合;盐度为8% 时,实验结果与预测结果一致,通过溶度积判断,天然海水中有少量CaSO4析出,但没有附着在金属表面;盐度为10% 时,升高温度后,CaSO4晶体自发析出,Oddo-Tomson饱和指数法无法准确给出该过程的预测.

Next One:The Analysis of the Evaporation Effect on Moisture Soil under Intermittent Operation of Ground-source Heat Pump