pH adjustment in water treatment
The importance of pH adjusting in sewage water treatment
The importance of adjusting PH value in sewage treatment is self-evident. The pH value is an important parameter in sewage, which can reflect the proportion of organic and inorganic substances in the sewage, as well as the acidity and alkalinity of the sewage. The change in pH value can affect the progress of various chemical reactions, thereby affecting the effectiveness of sewage purification. Therefore, it is very important to adjust the PH value in sewage treatment.
Method of adjusting PH value in sewage treatment
1. Add alkaline solution
In the process of sewage treatment, if the pH value is low, the method of adding alkaline solution can be used to adjust the pH value. Alkaline solutions can be sodium hydroxide, calcium hydroxide, magnesium hydroxide, etc. The appropriate solution can be selected based on the specific situation in the wastewater. This method can quickly and effectively adjust the pH value to reach the appropriate level.
2. Add acidic solution
In the process of sewage treatment, if the pH value is too high, the method of adding acidic solution can be used to adjust the pH value. The acidic solution can be hydrochloric acid, sulfuric acid, nitric acid, etc., and the appropriate solution can be selected based on the specific situation in the sewage. This method can also quickly and effectively adjust the pH value to reach the appropriate level.
3. Add adsorbent for ph adjustment in water treatment
In the process of sewage treatment, if the pH value cannot be adjusted, the method of adding adsorbents can be considered. Adsorbents can be alumina, calcium oxide, calcium carbonate, etc., and suitable adsorbents can be selected based on the specific situation in wastewater. The function of an adsorbent is to adsorb ions in wastewater, thereby reducing the ion concentration in the wastewater and achieving the goal of adjusting the pH value.
4. Using deoxidizers
During the sewage treatment process, if there is a large amount of organic matter in the sewage that makes it impossible to adjust the pH value, the method of using deoxidizers can be considered. Deoxidizers can be certain oxygen-containing compounds, such as chlorides, sulfides, etc., and suitable deoxidizers can be selected based on the specific situation in wastewater. The function of deoxidizers is to oxidize the organic matter in sewage, thereby reducing the concentration of organic matter in sewage and achieving the goal of regulating pH value.
conclusion
It is very important to adjust PH value in sewage treatment. PH value can be adjusted by adding alkaline solution, acid solution, adsorbent and deoxidizer. However, during the treatment process, it is necessary to pay attention to safety, control the range of pH values, and regularly test pH values to achieve good purification effects.