| Pharmaceutical wastewater containing antibiotics is a kind of high concentrated organic wastewater which involve complicated composition and many kinds of pollutants. One pharmaceutical company from Jiangxi mainly produce antibiotic drugs such as Sulbactam Acid and Sulbactam sodium, thus generating a large numble of wastewater, the company's existing wastewater treatment system has been unable to meet the wastewater discharge standards, so a new technology projects supporting the wastewater treatment system is needed. Through research and analysis, by using Fe-C micro-electrolysis/Fenton advanced oxidation process+IC-A/O biological treatment process, actual operation results show that: after adopting the new wastewater treatment system, all the indicators have reached the standards of Sewage treatment plant in the in the industrial park to take over.In this subject, experiment of the Fe-C micro-electrolysis/Fenton advanced oxidation process to treat antibiotic pharmaceutical wastewater has been done, also, the application practice of Fe-C micro-electrolysis/Fenton advanced oxidation process + IC-A/O biological treatment process of antibiotic wastewater treatment has been analysed, conclusions are as follows:(1)The effect of four kinds of advanced oxidation methods------Fe-C micro-electrolysis, H2O2 oxidation, Fenton oxidation, Fe-C micro-electrolysis combined with Fenton------under the same conditions to treat antibiotic pharmaceutical wastewater were studied to compare, the results show that: the process of Fe-C micro-electrolysis/Fenton Joint is the best, the process of H2O2 oxidation is the worst. By small scale experiments, it determines the best technological parameters for process of Fe-C micro electrolysis/Fenton Joint, which are as follows: influent p H value is 3.0, H2O2 dosage is 0.9g/L, Fe-C reaction time is 120 mins, and Fenton reaction time is 30 mins. Under the best conditons of this process, the CODcr removal rate of wastewater is 30.2%, and the ammonia nitrogen removal rate is 12.1%.(2)During startup of the IC reactor, the influent volume load should control about 0.06 kg CODcr/(m3.d) in the start eraly, by increasing volume load gradually and intermittent inflow. After a successful start, the system effluent stability, at this point, the average CODcr concentration of the effluent is about 1150 mg/L, and the average removal rate is above 80%; the effluent concentration of NH3-N is about 170 mg/L, and the concentration of NH3-N is slightly higher than that of the influent.(3)After A/O system stable running, the influent CODcr concentration is 900~1400mg/L, average 1100mg/L, the CODcr concentration of effluent is keeping below 100mg/L, and the removal rate is keeping above 91%; Influent concentration of NH3-N is 160~200 mg/L, average 180mg/L, effluent concentration of NH3-N is 8~20mg/L, removal rate of NH3-N about 93%, all the indicators have reached the standards of Sewage treatment plant in the in the industrial park to take over. |
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