Liquid de-fluorinators are chemical agents specially used to remove fluoride in water. They are widely used in treatment of drinking water, industrial wastewater , agricultural irrigation water and other fields water.
Main components
The composition of liquid de-fluorine agent is diverse, mainly including the following categories:
Amine compounds: such as triethanolamine, diethanolamine, etc., can form a stable water-soluble complex with fluoride ion to reduce the activity of fluoride ion.
Sulfonic acid compounds: such as o-phenylsulfonyl amide, naphthalene sulfonyl amide, etc., have good catalytic activity, can accelerate the fluoride removal reaction.
Inorganic flocculant: such as aluminum salt (polyaluminum chloride, aluminum sulfate), iron salt (polyaluminum sulfate), etc., remove fluoride ion through flocculation precipitation.
Silicate compounds: Fluoride ions are fixed by ion exchange reactions.
Auxiliary components: such as stabilizer, buffer, surfactant, etc., used to improve the stability and use effect of fluoride removal agent.
Operational principle
The liquid defluoridant removes fluoride from water by the following steps:
Adsorption stage: active ingredients adsorb fluoride ions to form complexes.
Precipitation stage: the complex further reacts to form insoluble fluoride precipitate.
Solid-liquid separation: the sediment is separated from the water by precipitation, filtration and other methods.
Advantages and applications
Efficient fluoride removal: can quickly reduce the concentration of fluoride ions in water to meet water quality standards.
Wide range of application: suitable for a variety of fluorine-containing wastewater, such as electronics, chemical industry, smelting, photovoltaic, electroplating and other industries.
Easy to operate: no need to change the original treatment process, can be effective after addition.
Environmental protection: no secondary pollution, can be biodegradable.
Liquid de-fluorinators play an important role in ensuring water quality safety, protecting ecological environment and reducing health risks.
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