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Gypsum scale reduction and collection from drainage water in solar concentration

Calcium sulfate scaling is a known issue with drainage water concentration systems. During preliminary pilot testing of a solar assisted agricultural drainage water salt concentration and recovery system, calcium sulfate dihydrate (gypsum) precipitated as a scale on the primary evaporator surface an... Full description

Journal Title: Desalination 2011, Vol.265(1), pp.140-147
Main Author: Kim, Dae Hyun
Other Authors: Jenkins, Bryan M , Oh, Jae Hun
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0011-9164 ; E-ISSN: 1873-4464 ; DOI: 10.1016/j.desal.2010.07.044
Link: https://www.sciencedirect.com/science/article/pii/S0011916410005424
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recordid: elsevier_sdoi_10_1016_j_desal_2010_07_044
title: Gypsum scale reduction and collection from drainage water in solar concentration
format: Article
creator:
  • Kim, Dae Hyun
  • Jenkins, Bryan M
  • Oh, Jae Hun
subjects:
  • Scaling
  • Calcium Sulfate
  • Solar Concentration System
  • Seeding Technique
  • Engineering
ispartof: Desalination, 2011, Vol.265(1), pp.140-147
description: Calcium sulfate scaling is a known issue with drainage water concentration systems. During preliminary pilot testing of a solar assisted agricultural drainage water salt concentration and recovery system, calcium sulfate dihydrate (gypsum) precipitated as a scale on the primary evaporator surface and on other water-side surfaces. The concentrator surface design may allow for recovery of gypsum as an additional product from the facility, in addition to the main product of sodium sulfate. Seeding with gypsum crystal was tested to reduce the scale growth and precipitate gypsum in suspension. The mechanical removal of gypsum from a flexible concentrator surface was also tested. As a result, the seeding process had influence on the scale formation and reduced calcium sulfate buildup on components of the evaporator system.
language: eng
source:
identifier: ISSN: 0011-9164 ; E-ISSN: 1873-4464 ; DOI: 10.1016/j.desal.2010.07.044
fulltext: fulltext
issn:
  • 0011-9164
  • 00119164
  • 1873-4464
  • 18734464
url: Link


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subjectScaling ; Calcium Sulfate ; Solar Concentration System ; Seeding Technique ; Engineering
descriptionCalcium sulfate scaling is a known issue with drainage water concentration systems. During preliminary pilot testing of a solar assisted agricultural drainage water salt concentration and recovery system, calcium sulfate dihydrate (gypsum) precipitated as a scale on the primary evaporator surface and on other water-side surfaces. The concentrator surface design may allow for recovery of gypsum as an additional product from the facility, in addition to the main product of sodium sulfate. Seeding with gypsum crystal was tested to reduce the scale growth and precipitate gypsum in suspension. The mechanical removal of gypsum from a flexible concentrator surface was also tested. As a result, the seeding process had influence on the scale formation and reduced calcium sulfate buildup on components of the evaporator system.
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Calcium sulfate scaling is a known issue with drainage water concentration systems. During preliminary pilot testing of a solar assisted agricultural drainage water salt concentration and recovery system, calcium sulfate dihydrate (gypsum) precipitated as a scale on the primary evaporator surface and on other water-side surfaces. The concentrator surface design may allow for recovery of gypsum as an additional product from the facility, in addition to the main product of sodium sulfate. Seeding with gypsum crystal was tested to reduce the scale growth and precipitate gypsum in suspension. The mechanical removal of gypsum from a flexible concentrator surface was also tested. As a result, the seeding process had influence on the scale formation and reduced calcium sulfate buildup on components of the evaporator system.

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Calcium sulfate scaling is a known issue with drainage water concentration systems. During preliminary pilot testing of a solar assisted agricultural drainage water salt concentration and recovery system, calcium sulfate dihydrate (gypsum) precipitated as a scale on the primary evaporator surface and on other water-side surfaces. The concentrator surface design may allow for recovery of gypsum as an additional product from the facility, in addition to the main product of sodium sulfate. Seeding with gypsum crystal was tested to reduce the scale growth and precipitate gypsum in suspension. The mechanical removal of gypsum from a flexible concentrator surface was also tested. As a result, the seeding process had influence on the scale formation and reduced calcium sulfate buildup on components of the evaporator system.

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