Treating agent for lincomycin hydrochloride production waste water and its preparation method and usage method

Abstract

This invention relates to a waste water treatment agent for treating the waste water during the jiemycin hydrochloride production and the preparation method and process of using thereof. This treatment agent is made of formaldehyde, dicyandiamide, catalyst, cationic starch, water and assisting solvent raw material. The COD of the waste water can be decreased below 300mg / L after treated by this treatment agent and can meet the national standard of discharging. It overcomes the disadvantage that the total discharging pollutant does not decrease by diluting the high-concentrated jiemycin organic waste water in the current manufacturing enterprise. Besides, this treatment agent is easy soluble and dispersing in waste water, thus has a high usage efficiency and good economical benefits. In the meantime, the mass amount marsh gas and organic deposition substances produced during the treatment process can be used as fuel and farm manure respectively, which can obtain a good effect of comprehensive utilization, energy saving and cost decreasing.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a lincomycin hydrochloride production wastewater treatment agent used for antibiotic production wastewater treatment, and a preparation method and use method thereof. Background technique [0002] In the production process of lincomycin hydrochloride, a large amount of high-concentration organic substance wastewater is produced. The main components of the wastewater are the fermentation residual medium, mycelia and various complex metabolites produced during the fermentation process, such as carbohydrates, Proteins, organic acids, pigments, and organic solvents, acids and bases, and trace antibiotics added during the extraction process. The wastewater has complex components, high organic content, dark brown color, and COD value above 15,000mg / L. If it is not treated It will cause serious odor pollution and water pollution to the surrounding environment. In the k...

AI Technical Summary

Problems solved by technology

However, this type of flocculant is expensive to use, has poor miscibility in water, and high cost of use, so it is not suitable for application in lincomycin wastewater treatment

In the existing public literature technology, there is also a class of cationic starch dicyandiamide-formaldehyde flocculant (thesis: Sichuan Environment, Volume 23, No. 4, 2004), and aluminum sulfate is used as a catalyst in the preparation of this class of flocculant, which can better The anionic surfactant in wastewater can be removed efficiently, and the flocculation and decolorization effect on lincomycin wastewater is basically the same as that of dicyandiamide formaldehyde condensation polymers, and the cost is better than that of dicyandiamide formaldehyde. Its products have improved in use effect, but its comprehensive performance is still not ideal, and the cost is still high