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 waste-water 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.