Effect of salinity on fouling deposition characteristics in hyperhaline seawater

Bing NI; Shengqiang SHEN; Yihao LI; Xiaohua LIU; Yiqiao LI; Shanlin LIU

doi:10.11949/0438-1157.20190649

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Effect of salinity on fouling deposition characteristics in hyperhaline seawater

Energy and environmental engineering | 更新时间：2020-06-24

- Effect of salinity on fouling deposition characteristics in hyperhaline seawater
- CIESC Journal Vol. 70, Issue 11, Pages: 4363-4369(2019)
- 作者机构：
  
  Key Laboratory for Desalination of Liaoning Province, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190649
  CLC： TK124
- Received：11 June 2019，
  
  Revised：2019-07-03，
  
  Published：05 November 2019
- 稿件说明：
移动端阅览
倪兵, 沈胜强, 李宜豪, 刘晓华, 李熠桥, 柳山林. 高盐海水中盐度对污垢沉积特性的影响[J]. 化工学报, 2019, 70(11): 4363-4369

NI Bing, SHEN Shengqiang, LI Yihao, LIU Xiaohua, LI Yiqiao, LIU Shanlin. Effect of salinity on fouling deposition characteristics in hyperhaline seawater[J]. CIESC Journal, 2019, 70(11): 4363-4369
倪兵, 沈胜强, 李宜豪, 刘晓华, 李熠桥, 柳山林. 高盐海水中盐度对污垢沉积特性的影响[J]. 化工学报, 2019, 70(11): 4363-4369 DOI： 10.11949/0438-1157.20190649.

NI Bing, SHEN Shengqiang, LI Yihao, LIU Xiaohua, LI Yiqiao, LIU Shanlin. Effect of salinity on fouling deposition characteristics in hyperhaline seawater[J]. CIESC Journal, 2019, 70(11): 4363-4369 DOI： 10.11949/0438-1157.20190649.

摘要

污垢沉积过程十分复杂。管材的种类、海水的成分、盐度和温度等因素都会影响污垢的沉积特性。选用人工海水为工质，在温度为80℃，盐度为6%、8%和10%时，对静态条件下铜管和钛管表面污垢的沉积特性进行对比研究。通过实验得出，金属表面污垢质量增量在盐度为8%时最大。钛管表面污垢主要以片状的Mg(OH)

和少量的CaCO

为主，而铜管表面的Mg(OH)

晶体成团聚形态，并且表面附着大量的方解石CaCO

和少量的文石CaCO

。在相同盐度下，两种金属表面污垢的沉积趋势不同。在金属表面没有观察到CaSO

形态的晶体析出。

Abstract

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)

and minor CaCO

. Mg(OH)

is agglomerated on the surface of copper tube. Calcite CaCO

and

minor aragonite CaCO

deposit on the surface of Mg(OH)

. The deposition trend of fouling on the surface of the two metals is different under the same salinity. CaSO

crystals are not observed on the metallic surface.

关键词

Keywords

references

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