Effect of salinity on fouling deposition characteristics in hyperhaline seawater

被引：0
|
作者：
Ni B. [1 ]
Shen S. [1 ]
Li Y. [1 ]
Liu X. [1 ]
Li Y. [1 ]
Liu S. [1 ]
机构：
[1] Key Laboratory for Desalination of Liaoning Province, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, Liaoning
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 11期
关键词：
Crystallization; Desalination; Fouling; Salinity; Seawater;
D O I：
10.11949/0438-1157.20190649
中图分类号：
学科分类号：
摘要：
The process of fouling deposition is complicated. Factors such as the type of pipe, seawater composition, salinity and temperature can affect the deposition characteristics of the fouling. Deposition characteristics of fouling are studied on the surface of titanium tube and copper tube under static conditions with artificial seawater. The seawater temperature is 80℃ and seawater salinity is 6%, 8% and 10%, respectively. The results show that the deposition amount on the metallic surface achieves the highest value at the salinity of 8%. The major composition on the surface of titanium tube is flaky Mg(OH)2 and minor CaCO3. Mg(OH)2 is agglomerated on the surface of copper tube. Calcite CaCO3 and minor aragonite CaCO3 deposit on the surface of Mg(OH)2. The deposition trend of fouling on the surface of the two metals is different under the same salinity. CaSO4 crystals are not observed on the metallic surface. © All Right Reserved.
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页码：4363 / 4369
页数：6
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