This project was successfully completed for a big pharmaceutical company which was registered in Hangzhou Bay New Area of Ningbo in 2014 with an investment of 1,186.65 million RMB yuan to implement the project of "Pharmaceutical Production Base". 

The designed wastewater treatment capacity for the production base is 150 m³/day.

1. Treatment of Wastewater from Chemical Synthetic Pharmaceutical Factory

According to our engineering experience for many years, the main characteristics of chemical synthetic pharmaceutical wastewater are as follows:

(1) High concentration, high concentration of residual reactants, products, solvents and catalysts in wastewater;

(2) High salt content, inorganic salts are often by-products in the synthesis process;

(3) The change of pH value is great;

(4) The composition of wastewater is single and the nutrient source is insufficient;

(5) Some raw materials and products have bacteriostasis or are difficult to biodegrade.

For the treatment of wastewater from chemical synthetic pharmaceutical factory, we adopt the following procedures:

Adsorption + Coagulation + Advanced oxidation, 

Internal electrolytic coagulation precipitation + Anaerobic + aerobic, 

UFR + UASB two-phase anaerobic process, 

Hydrolysis + Contact oxidation, Air flotation + Facultative oxygen + CASS, 

OFR (oxidation flocculation composite bed) + SBR for treatment.

2. Treatment for Wastewater from Biological Pharmaceutical Factory

According to our engineering experience for many years, biological pharmaceutical wastewater treatment is mainly wastewater from antibiotic production.

Its characteristics are as follows:

(1) high COD (10000-80000 mg/L), mainly for fermentation residue matrix, fermentation intermediates, mycelial residue, residual liquid and some products;

(2) SS < 1000 mg/L, mainly for coagulant additives and unseparated microbial mycelia;

(3) high TN concentration (>6000 mg/L), high color (5000-10000 times), heavy odor;

(4) more bacteriostatic substances (residual antibiotics) and their existence. Refractory substances;

(5) High content of chemical raw materials such as intermediate metabolites, surfactants, residual high concentration acids, alkalis, organic solvents;

(6) Large fluctuations in water quality and quantity.

We mainly adopt the combination of physical and chemical methods and biological methods.

Physicochemical methods: 

Coagulation, Precipitation, Adsorption, Air flotation, Membrane treatment, Micro-electrolysis;

Biological treatment: 

Anaerobic + Aerobic, SBR, UASB, IC reactor.