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Pharmaceutical wastewater containing antibiotic is a typical kind of biorefractory wastewater with high concentration, high chroma, complicated component and low degradability. Even the secondary effluent contains part of chroma and hard degradable organic pollutant, which is the main composition of COD. The wastewater would hardly pollute the accepted water and have a bad influence on people’s normal life without being treated well. How to treat pharmaceutical wastewater containing antibiotic effectively is a big problem for the pharmaceutical industry.Both the process of Micro-electrolysis-Fenton reagent oxidation and the Micro-electrolysis-Coagulating process are characteristic of low investment, low running cost, small occupation of land and simple operating process. In the process the iron is scrap iron or sheet iron from machine factory and activated carbon can be replace by coke and flue powder, so the significance of this process is making use of waste circularly.In this thesis, the object is the secondary effluent from a pharmaceutical wastewater treatment plant. The principle, characteristic and effect factors of the Micro-electrolysis, Fenton reagent oxidation and Coagulating process is studied. Based on a series of static experiments, the degree of importance of influence factors is determined by orthogonal experiments and the optimal operating parameters are determined by single factor experiment. Although both of the processes can achieve the effluent standard, the process of Micro-electrolysis-PAC Coagulating is determined by comparing the running cost.The experiment result of advanced treatment of pharmaceutical wastewater indicates that the optimal operating parameters are as follows:Micro-electrolysis: In the aerated condition, temperature is 30℃,pH value is 8, mass ratio of iron versus carbon is 3, and the COD removal efficiency is 3637%.（1） Micro-electrolysis-Fenton reagent oxidation process: pH value is 5, reaction time is 60min, the dosage of hydrogen peroxide （3%） is 6mL/L, and the COD can be lower than 100mg/L.（2） Micro-electrolysis-Coagulating process: choose FeCl3 and PAC as coagulant, the dosage of FeCl3 and PAC is 800 mg/L and 600 mg/L separately, and the COD can be lower than 100mg/L.（3） Analysis of running cost: The running cost of Micro-electrolysis-Fenton, Micro-electrolysis-FeCl3 Coagulation and Micro-electrolysis-PAC Coagulation is 1.77yuan/t, 3.99yuan/t and 1.32yuan/t.
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