What are the factors that affect the use of coagulants in food processing sewage treatment equipment?
What are the factors that affect the use of coagulants in food processing sewage treatment equipment? Author: Today, food has become everyone essential food, which makes food processing plants continue to grow and develop, to grow food is bound to increase the amount of sewage discharge. The pollution of nature has been paid more and more attention by human beings. The environmental protection company has designed a food processing sewage treatment equipment. The equipment adopts advanced domestic and foreign technology and manufacturing technology in the late 1990s to produce glass steel and stainless steel as the main raw materials. Food processing sewage treatment equipment. The equipment has stable and reliable technical performance, good treatment effect, low investment and small land occupation. When using food processing sewage treatment equipment, coagulants are usually used to treat sewage to make the sewage biological treatment effect better, but sometimes the treatment effect is not ideal. There are many factors that affect the use of coagulants. So what are the factors that affect the effect of sewage treatment coagulant? The main factors that affect the effect of sewage treatment coagulant are: water temperature, PH value, alkalinity and turbidity. 1. The influence of water temperature Too low water temperature has a great influence on the coagulation effect. There are three factors influencing the water temperature on the coagulant: (1) First, the inorganic salt coagulant needs to absorb heat when it dissolves in water, so the lower the water temperature, the more difficult the hydrolysis of the coagulant; (2) Too low water temperature affects the water The Brownian motion of the colloid reduces the chance of collision between particles, and the more difficult the coagulation; (3) The lower the water temperature, the greater the water viscosity, the greater the water flow resistance, and the more difficult the growth of flocculation, which affects the coagulation effect. 2. The PH value of water The PH value of water needs to maintain a stable range to achieve a better coagulation effect, because the pH value will have a great impact on the hydrolysis state of inorganic salts. If it exceeds this range, it will affect the inorganic The salt coagulant effect has an impact; 3. The alkalinity aluminum salt solution causes the PH value to drop. If there are enough carbonate ions in the water, it has a buffering effect on the pH. During the rate of salt solution hydrolysis, the pH value will not be caused. If the alkalinity in the water is insufficient, in order to maintain the pH, it is necessary to add lime or sodium carbonate to adjust the pH. 4. Turbidity of water quality Turbidity has a great influence on the coagulation effect, too high or low turbidity will have a great influence on coagulation. When the turbidity is low, the ions are small and uniform, and a large amount of coagulant must be added to form flocs, which will increase the amount of sludge and increase the processing cost. This is the introduction of the factors that affect the effect of sewage treatment coagulants. The dosage of the medicine itself should also be strictly controlled. Generally speaking, the excessive use of the dosage of the medicine will also lead to the poor water quality treatment effect.
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