Pharmaceutical wastewater is the wastewater produced by hospitals, pharmaceutical factories, pharmaceutical industry and other pharmaceutical related industries. Due to the large amount of organic matter, drug residues and chemical agents in pharmaceutical wastewater, its treatment is relatively complicated. A common problem in pharmaceutical wastewater is emulsification, that is, grease and pollutants in wastewater are emulsified into fine particles, which are difficult to separate and remove. Therefore, demulsifier has become one of the important means to solve the problem of medical wastewater treatment.
Medical wastewater demulsifier is a kind of sewage treatment agent which can demulsify the emulsified substances in medical wastewater. It can react with the emulsified substance, change its surface tension and dispersion, destroy the structure of the emulsified substance, make it out of the emulsified state, gather into larger particles, and facilitate subsequent separation and removal.
The amount of demulsifier added in pharmaceutical wastewater should be determined according to the characteristics of wastewater, the degree of emulsification and the nature of emulsifying substances. First of all, the medical wastewater should be pre-treated, including the removal of suspended solids and impurities. Then the medical wastewater is fully in contact with the demulsifier to make the emulsion react with the demulsifier and destroy its emulsifying structure. Finally, the solid substances containing emulsified substances are separated from the wastewater by precipitation, filtration, centrifugation and other methods. In addition, in order to improve the demulsification efficiency of pharmaceutical wastewater demulsifier, some auxiliary measures need to be adopted. For example, adjusting pH value, stirring intensity, etc., can improve the reaction rate and effect; Adding flocculant can increase the aggregation and precipitation effect of solid substances.
Medical wastewater demulsifier not only has good demulsification effect, but also has the characteristics of low cost, easy availability and easy operation. In addition, the pharmaceutical wastewater demulsifier also meets the requirements of environmental protection and will not cause secondary pollution to the environment.
In general, demulsifier can effectively solve the emulsification problem in pharmaceutical wastewater. Through reasonable addition of demulsifier and appropriate treatment methods, efficient and low-cost wastewater treatment can be achieved to reduce the harm to the environment and human health.
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