Biopharmaceutical wastewater treatment is currently a very important and very difficult to deal with wastewater in the wastewater treatment industry. Biopharmaceutical refers to the use of organisms or biological processes to produce drugs, mainly including antibiotics or antibiotics generated by the method of fermentation of bacteria, which will produce corresponding pharmaceutical wastewater in its production and processing wastewater. Today, Zhongke Boyun will show you what are the main characteristics of biopharmaceutical wastewater.

1. Generation of wastewater

Fermentation of biological pharmaceuticals is through the life activities of microorganisms, food and other organic raw materials for fermentation, filtration, refining into pharmaceutical products, such drugs include antibiotics, vitamins, amino acids, accounting, organic acids, coenzymes, enzyme inhibitors, hormones, immune regulatory substances and other physiological activity substances.

(1) Drainage from main production processes: such drainage includes filtrate, waste mother liquor, solvent recovery residue, etc. The main characteristics of this type of wastewater are high pollution concentration, large fluctuations in pH value, and many residues of pharmaceutical ingredients. Although the amount of water is not necessarily too large, it is difficult to treat due to its high pollutant content and high COD value.

(2) Auxiliary production process drainage: including cold water, power equipment cooling water, water ring vacuum equipment drainage, distillation equipment condensate, etc. The concentration of such drainage pollutants is low, but its water volume is large and seasonal, and the difference between enterprises is large.

(3) Flushing water: mainly includes container equipment flushing water, filtering equipment flushing water, ion exchange equipment flushing water, workshop floor flushing water, etc. The nature of this kind of drainage changes greatly. For example, the concentration of suspended solids in filtering equipment flushing water is very good. If it is not properly controlled, it will become an important source of pollution,

2. Pollution characteristics

The main characteristics of fermentation biopharmaceutical wastewater are as follows:

(1) There are many sewage nodes and different pollution levels, which is conducive to the diversion of clean-up and sewage.

(2) The concentration of pollutants is high, such as the COD value of waste mother liquor and waste filtrate is generally above 10000 mg/L, and the COD value of some enterprises is even above 100000 mg/L.

(3) The high concentration wastewater is discharged intermittently, the nature changes greatly, and the required regulating tank volume is large.

(4) Waste water contains organic matter that is difficult to degrade and even has an inhibitory effect on microorganisms. In the production process, adding demulsifier, defoamer, oxalate and residual antibiotics to a certain concentration will inhibit the activity of microorganisms.

(5) high nitrogen content. The nitrogen in fermentation biological pharmaceutical wastewater mainly exists in the form of organic nitrogen and ammonia nitrogen. After ordinary biological treatment, ammonia nitrogen often does not meet the standard, and sometimes ammonia nitrogen does not even decrease but increases. The BOD5/N of fermentation waste liquid is generally between 1 and 4, which is far from the nutritional requirements of biological treatment, which seriously affects the growth and metabolism of microorganisms.

(6) high sulfate concentration. Ammonium sulfate is one of the fermentation sources, and sulfuric acid is the PH regulator in the process of refining and refining. A large number of ammonium sulfate and sulfuric acid are easy to cause high concentration of sulfate in wastewater, which brings great difficulties to anaerobic and aerobic treatment.

(7) The chromaticity of fermented biopharmaceutical wastewater is generally higher.