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Desalination defoamers are specialized chemical additives—typically polyether-modified silicones or high-efficiency polyethers—used to break and prevent foam in seawater distillation (MSF/MED) and reverse osmosis (RO) systems. They improve efficiency, reduce corrosion, and prevent foam-induced contamination. These agents, which include types like Kemira KemFoamX, are stable in high-temperature, strong alkali, and high-salt environments.
Key Aspects of Desalination Defoamers
- Performance: They reduce the surface tension of foam, allowing for instantaneous breaking and preventing new foam formation in high-pressure systems.
- Operating Conditions: These agents must be stable at high temperatures, compatible with antiscalants, and cannot create steam-volatile components that contaminate the distilled product.
- Benefits: Increased production efficiency, reduced operating cost, improved distillate quality, and increased longevity of membrane filters.
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Antifoams and Defoamers for Sea Water Desalination
xiamen rickman chemical technology co., ltd
https://www.rickmanchemical.com › blog › antifoams-an...
xiamen rickman chemical technology co., ltd
https://www.rickmanchemical.com › blog › antifoams-an...
Apr 24, 2023 — Defoamers are used in sea water desalination to reduce the amount of foam created during the desalination process. Foam can interfere with the ...Read more
A High-Efficiency Defoamer for Seawater Desalination ...
MDPI
https://www.mdpi.com › ...
MDPI
https://www.mdpi.com › ...
by M Hu2026 — As surface-active functional compounds, defoamers play a pivotal role in seawater desalination processes. In this study, a polyether-modified silicone ...Read more
Desalination defoamer
Nanjing Antifoam Environmental Technology Co., Ltd
https://www.antifoamchemical.com › blog › desalination...
Nanjing Antifoam Environmental Technology Co., Ltd
https://www.antifoamchemical.com › blog › desalination...
Seawater desalination defoamer can be directly added to the seawater that needs to be desalinated and it must be stirred evenly before use. The recommended ...
Seawater Desalination Defoamer, Solutions by INVINO
ywlchemical.com
https://ywlchemical.com › seawater-desalination-defoa...
ywlchemical.com
https://ywlchemical.com › seawater-desalination-defoa...
Jan 15, 2026 — Seawater Desalination has become a strategic water supply solution for coastal cities and petrochemical complexes. Among the various process ...Read more
Why use the seawater desalination treatment defoamer?
Shenyang Rise Surface Technologies Co., Ltd.
https://www.risechemical.com › news › why-use-the-sea...
Shenyang Rise Surface Technologies Co., Ltd.
https://www.risechemical.com › news › why-use-the-sea...
Sep 23, 2022 — Defoamer is not only suitable for defoaming at room temperature, but also for defoaming in high temperature and low temperature environments.Read more
Foam Control Additives In MSF Desalination
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
by MH Auerbach1981Cited by 9 — Excessive foaming in multistage flash desalination plants can give rise to salt-contaminated distillate and reduced operating efficiency.Read more
Seawater desalination defoamer, enriching human freshwater ...
知乎
https://www.zhihu.com › article
知乎
https://www.zhihu.com › article
New Wencheng specially developed a desalination defoamer for the foam problem in seawater desalination. It is made through multiple processes and is mainly used ...
Analysis on the operation principle of defoamer for ...
Zilibon Chemical
https://www.zilibon.com › newShow_488
Zilibon Chemical
https://www.zilibon.com › newShow_488
Jul 27, 2018 — The defoamer for seawater desalination developed by the Chinese Federation is a new type of defoamer that can adapt to high temperature viscous, ...Read more
CN105347416A - Defoaming agent for seawater desalination
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
The invention relates to a seawater desalination defoaming agent. Seawater desalination is an effective way to solve the shortage of freshwater resources, ...
People also ask
What are the disadvantages of Antifoaming agents?
Disadvantages of Silicone Based Defoamers
Silicone-based antifoam is relatively poor durability. Silicone is oil soluble, and it reduces the defoaming effects in oil systems. It is not ideal for long-term high-temperature resistance and strong alkali resistance.Jan 20, 2022
Silicone-based antifoam is relatively poor durability. Silicone is oil soluble, and it reduces the defoaming effects in oil systems. It is not ideal for long-term high-temperature resistance and strong alkali resistance.Jan 20, 2022
Advantages and Disadvantages of Silicone Defoamers- NAQ Global
NAQ Global - Home.blog
https://naqglobal.home.blog › 2022/01/20 › silicone-def...
NAQ Global - Home.blog
https://naqglobal.home.blog › 2022/01/20 › silicone-def...
Web results
Sub-chronic Toxicity of Defoamer Used in Seawater ...
National Institutes of Health (.gov)
https://pubmed.ncbi.nlm.nih.gov › ...
National Institutes of Health (.gov)
https://pubmed.ncbi.nlm.nih.gov › ...
by L Duan2019Cited by 7 — Conclusion: Long-term defoamer exposure may cause liver injury but has no significant impact on renal function in rats. The effect on blood cells in female rats ...Read more
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