Usage of Fluoride Remover in Alkaline Wastewater
As a common pollutant in industrial wastewater, fluoride has many hazards that can not be ignored. Excessive fluoride will not only cause pollution to the natural environment, but also harm human health to a certain extent. Therefore, how to efficiently remove fluoride in wastewater has become an important topic in the field of environmental protection. This paper will explore the application of fluoride remover in alkaline wastewater.
Characteristics of fluoride in Alkaline Wastewater:
Alkaline wastewater generally refers to its pH value above 7, in which fluoride usually exists in the form of fluoride ion (F). The stability of fluoride ions makes it difficult to remove by conventional physical and chemical treatments. In addition, in an alkaline environment, the fluorine ion solubility is high, resulting in their concentration often exceeding the safety standards. This requires the treatment of a special fluoride removal agent to improve removal efficiency.
Use Method of fluoride remover in sewage treatment:
1. Dilute fluoride agent: dilute fluoride agent in proportion, usually dilute 100 ml of fluoride agent to 1-2 liters. Full mixing needs to be performed during dilution to ensure uniform mixing.
2. Mix the coagulant: mix the diluted fluoride remover with the appropriate amount of coagulant, and stir evenly. The specific coagulant and use method should be determined according to different sewage treatment processes.
3. Add fluoride remover: pour the mixed solution into sewage with high fluoride concentration, and put the fluoride remover evenly into the sewage through mechanical stirring and other means. Generally speaking, the concentration and amount of fluoride remover should be determined by the concentration of fluoride ions in sewage and the treatment process.
4. Precipitation and filtration: after the fluoride removal agent is put into the sewage, through the appropriate precipitation and filtration, remove flocs and other impurities in the water, can effectively remove the fluoride ion in the sewage.
It should be noted that in the use of fluoride agent, should be operated according to the specific situation. If the content of fluoride ion in sewage is high, it is necessary to increase dosage of fluoride remover, and coagulant, etc. At the same time, in order to ensure effect of fluoride remover, the concentration of fluoride ion in sewage should be monitored regularly, as well as the water quality after treatment, and dosage and process parameters of fluoride remover should be adjusted in time.
In short, fluoride removal agent plays an important role in sewage treatment, but it needs to be selected and used according to the specific sewage treatment process and water quality situation.
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