Removing Amoxicillin From Simulated Wastewater Using Three-dimensional Electrode Of Activated Carbon And ACF Biofilm Reactor

As the continuous development and progress of science and technology, antibiotics in human social life become more indispensable. Pollution problems as a result of the abuse of antibiotics has gradually come into sight. Antibiotic production wastewater is an important source of antibiotic pollution. The complex composition, high salinity, high refractory organic matter content and poor biodegradability characteristics of antibiotic wastewater can be difficult to use traditional biological methods to be dealt with, so that exacerbate the pollution of antibiotics in the fields of production and life and so on.Combined process for wastewater treatment which based on different superiority of single processing technology have a high efficiency. This study in physical and chemical treatment process and biological treatment process selected three-dimensional electrode of activated carbon and ACF biofilm reactor to treat amoxicillin simulated wastewater through comparing the effect and optimize the combination process, to determine the combined process of three-dimensional electrode of activated carbon and ACF biofilm reactor to deal with amoxicillin wastewater, then for the next step of the research and analysis.In the method of three-dimensional electrode of activated carbon treatment of amoxicillin simulated wastewater phase, by five factors and four levels orthogonal experiment to determine the influence factors of the three-dimensional electrode of activated carbon in the treatment of amoxicillin simulated wastewaters: pH> electrolysis time> electrode voltage> plate spacing> GAC dosage. Through single factor experiment, the optimum conditions for the treatment of amoxicillin simulated wastewater by three-dimensional electrode of activated carbon were determined: 4 of initial pH, 40 min of electrolysis time, 10 V of electrode voltage, 8 cm of plate spacing and 6 g of carbon particles dosage. Under the optimum operating conditions, the removal rate of amoxicillin was 89.5%, the removal rate of COD reached 69.7%, and the BOD5/COD was increased up to 0.39, and the biodegradability of wastewater was significantly increased.In the treatment of amoxicillin simulated wastewater by ACF biofilm reactor, the effect of simulated wastewater treatment was poor, in the 12 h to 24 h treatment phase, the amoxicillin removal rate changes about 1%, the change was not obvious. The maximum removal rate of amoxicillin appeared at 24 h, which was about 8%. Determination of water quality in the treatment of amoxicillin simulated wastewater by three-dimensional electrode of activated carbon, which content of amoxicillin was 92.68 mg/L, BOD5 is 8.1 mg/L, COD was 130.8 mg/L, BOD5/COD was 0.06, the biodegradability of the wastewater was very poor.Three-dimensional electrode of activated carbon and ACF biofilm reactor combined process of amoxicillin simulated wastewater processing stage, amoxicillin simulated wastewater after the operation by the optimal operating conditions of three-dimensional electrode of activated carbon system, the effluent put into ACF biofilm reactor. 24 h when the highest removal rate of amoxicillin was 98.63%.Namely the three-dimensional electrode of activated carbon and ACF biofilm reactor combined process treatment, the amoxicillin content of amoxicillin treated wastewater was 1.37 mg/L, and the maximum removal rate was 98.63%; COD was 30.9 mg/L, COD removal rate was 75.33%.