Application of Wastewater Fluoride Remover in Nitrogen Fertilizer Plant

Application of Wastewater Fluoride Remover in Nitrogen Fertilizer Plant

Nitrogen fertilizer plant will produce a large amount of wastewater in the production process. Due to the limitations of raw materials and process, the wastewater often contains a certain amount of fluoride. The existence of fluoride not only causes serious pollution to the environment and water, but also causes harm to human health. Therefore, the fluoride removal in the wastewater treatment of nitrogen fertilizer plant is a difficult problem, and it is also a key link of the wastewater treatment of nitrogen fertilizer plant.

The fluoride in the wastewater of nitrogen fertilizer plant mainly includes sodium fluoride, calcium fluoride and other inorganic fluoride. These fluorides have the following characteristics:

1. High solubility: easy to form a stable solution.

2. High toxicity: fluoride has certain toxicity to both human body and the environment, especially in long-term exposure to high fluoride environment.

3. Difficult to degrade: Fluoride is difficult to degrade in the natural environment, which is easy to cause cumulative pollution.

The main component of fluoride remover is high polymer, which can adsorb fluoride ions in water, and then separate by electricity and flocculation precipitation, so as to achieve the effect of the fluoride removal, COD, color, total phosphorus, SS and heavy metals in water.

The practical application of fluoride remover

Fluorine removal agent is widely used. In the wastewater treatment of nitrogen fertilizer plant, adjust pH value to form insoluble sediment to achieve the removal effect. It can also be combined with other treatment technologies to improve the fluoride removal effect, such as adding lime first. The fluoride agent can also be applied in the pretreatment stage to reduce the difficulty of subsequent treatment.

Precautions for fluoride removal agents

1. Dosage of fluoride remover: according to the concentration of fluoride in the waste water, water quality characteristics and other factors, small tests can be done to determine the specific amount.

2. Operation control: strictly control the amount of fluoride remover, reaction time and other parameters to ensure the fluoride removal effect.

3. Solid waste treatment: the sediment produced in the process of fluoride removal should be properly treated to avoid secondary pollution.

Fluoride remover in nitrogen fertilizer plant wastewater plays an important role in wastewater treatment. Through the rational use of fluoride remover, fluoride can be effectively removed in wastewater and reduce environmental pollution.