Nanjing Luye Pharmaceutical Co., Ltd. is a national high-tech pharmaceutical enterprise committed to the research and development, production and sales of anti-tumor drugs. Hongji Environmental Protection, with many years of advantages in pharmaceutical industry wastewater treatment, successfully contracted the construction of Nanjing Luye New intelligent factory sewage treatment project. At present, the project has been debugging operation, the effluent effect is good, meet the enterprise production emissions of environmental protection requirements.
Characteristics of pharmaceutical wastewater
The engineering wastewater source is wide, the water quality is complex, divided into low concentration domestic sewage, benzene series wastewater, high concentration process wastewater, chlorinated hydrocarbon wastewater. Hongji Environmental Protection for the new Luye Pharmaceutical factory tailored, developed comprehensive in line with the factory production needs of high-quality solutions.
Engineering characteristics
1. Strengthen classification and collection of wastewater to ensure targeted removal of characteristic pollutants.
Considering the water quality of wastewater, the product as the first factor, and then consider the characteristic pollution factors of each product wastewater (the second factor), in the identification of the key characteristics of wastewater pollution factors (chlorocarbon, benzene series, heterocyclic compounds) on the basis of sewage is divided into: chlorocarbon wastewater, benzene series wastewater, high concentration and easy to degrade wastewater, low concentration wastewater, classified collection, targeted treatment.
2. The pretreatment of refractory wastewater adopts "two-stage treatment" to reduce the cost of advanced oxidation stage.
A chlorohydrocarbon wastewater removes fine suspended matter and a small amount of oil substances in the water through air flotation to ensure the efficient removal rate of dichloromethane by subsequent alkaline thermal hydrolysis. Electrolytic process further removes refractory COD in the water and reduces the treatment load in the subsequent biochemical section
B. Second stage pretreatment. For the mixed refractory wastewater after the first stage pretreatment, "micro-electrolysis method +Fenton method" is adopted to ensure the removal of refractory pollutants.
C Pretreatment is designed according to "skid pack" and equipped with local centralized control system, which can adjust and open the combination according to the actual wastewater discharge situation and facilitate operation and maintenance management.
3. Comprehensive wastewater treatment technology.
A Adopt "efficient coagulation sedimentation tank" for targeted treatment of high-concentration and easily degradable wastewater. Through coagulation and flocculation, insoluble protein colloid in the water is substantially removed and the concentration of protein substances penetrating into the subsequent biochemical section is reduced.
B Adopt upflow hydrolysis acidification process with strong impact resistance.
The upflow hydrolysis process is adopted to make the activated sludge have a longer residence time in the filler area and further ensure the microbial quantity in the hydrolysis tank. It is especially suitable for industrial wastewater with large water quality fluctuation and small water quantity. It has the characteristics of strong anti-impact load capacity and simple operation control.
C main biochemical process set AOO process to ensure the microbial quantity of the system. At the same time, through the series operation of two stages of O, further improve the removal of trace characteristic pollutants.
D Deep processing. Through ozone contact section, strengthen the removal of waste water pollutants.
Our country is a big drug production country, pharmaceutical production process produced a large number of "three wastes", the composition is complex, the pollution is serious, pharmaceutical industry faces more severe pressure of environmental protection.
Hongji Environmental Protection with pharmaceutical wastewater treatment technology as an advantage, has solved the problem of wastewater treatment for many pharmaceutical enterprises, "treatment" of environmental pollution in the pharmaceutical industry has a positive significance.
