START-UP OF SBBR BASED ON FIBROUS FILLERS TO ACHIEVE ADVANCED NITROGEN REMOVAL FROM PHARMACEUTICAL WASTEWATER
-
摘要: 针对制药废水总氮去除难的问题,采用纤维填料SBBR工艺处理实际制药废水。启动和驯化实验共进行了99 d,在制药废水NH3-N浓度(200±20) mg/L的条件下,最终系统的TN去除率稳定在97%以上,且未添加任何碳源。废水C/N是影响深度脱氮的关键条件,在进水C/N为3的条件下,系统无法实现废水的深度脱氮。通过提高废水的C/N,可以提高废水的脱氮效率。当废水C/N为5时,系统实现了深度脱氮。得益于纤维填料上大量的生物膜,SBBR在曝气结束后即实现了深度脱氮,脱氮的途径由同步硝化反硝化+内源反硝化逐渐转变成同步硝化反硝化。操作模式也最终确定为进水-搅拌-曝气-沉淀-排水。Abstract: In order to improve the removal of total nitrogen from pharmaceutical wastewater, the SBBR based on fibrous fillers was used to treat the actual pharmaceutical wastewater. The test of start-up and domestication lasted for 99 days, and with the initial ammonia nitrogen concentration of (200±20) mg/L in the wastewater, the total nitrogen removal rate of the system was kept at 97% above, without addition of carbon source. When the carbon nitrogen ratio was at 3, the system could not realize advanced nitrogen removal. The denitrification efficiency of the wastewater could be improved by increasing carbon nitrogen ratio. When the carbon nitrogen ratio in wastewater was at 5, the system achieved advanced nitrogen removal. Due to the large quantity of biofilms on the fibrous fillers, the advanced nitrogen removal of SBBR was achieved after the end of aeration. The denitrification pathway gradually changed from SND & endogenous denitrification to SND. The final operation mode was also final determined as feed-stir-aeration-settle-decant.
-
李向东,冯启言,于洪锋. 气浮-水解-好氧工艺处理制药废水[J]. 环境工程,2005,23(3):17-18. 范举红,刘锐,余素林,等. 分质预处理强化制药废水处理效果的研究[J]. 中国给水排水,2012,28(23):34-41. 陈婷婷,唐崇俭,郑平. 制药废水厌氧氨氧化脱氮性能与毒性机理的研究[J]. 中国环境科学,2010,30(4):504-509. DERAKHSHESHPOOR R, HOMAYOONFAL M. Amoxicillin separation from pharmaceutical wastewater by high permeability polysulfone nanofiltration membrane[J]. Journal of Environmental Health Science & Engineering, 2013,11(1):1-10. 张春晖,朱书全,齐力,等. 应用陶粒过滤-陶瓷膜组合对止咳糖浆制药废水深度处理的实验研究[J]. 环境工程学报, 2008, 2(8):1066-1068. BACIOGLIU I A, OTKER M. Treatment of pharmaceutical wastewater containing antibiotics by O3 and O3/H2O2 processes[J]. Chemosphere, 2003, 50(1):85-95. BOZ·ENA C, WALDEMAR B. Photocatalytic treatment of pharmaceutical wastewater using new multiwall-carbon nanotubes/TiO2/SiO2 nanocomposites[J]. Environmental Research, 2015, 137:176-184. PENG Y Z, LI Y Z, PENG C Y, et al. Nitrogen removal from pharmaceutical manufacturing wastewater with high concentration of ammonia and free ammonia via partial nitrification and denitrification[J]. Water Science and Technology, 2004, 50(6):31-36. TANG C J, ZHENG P, CHEN T T, et al. Enhanced nitrogen removal from pharmaceutical wastewater using SBA-ANAMMOX process[J]. Water Research, 2011, 45(1):201-210. 邱波,郭静,邵敏,等. ABR反应器处理制药废水的启动运行[J]. 中国给水排水,2000,16(8):42-44. WANG K, LIU S Q, ZHANG Q, et al. Pharmaceutical wastewater treatment by internal micro-electrolysis-coagulation,biological treatment and activated carbon adsorption[J]. Environmental Technology, 2009, 30(13):1469-1474. HASAN H A, ABDULLAH S R S, AL-ATTABI A W N, et al. Removal of ibuprofen, ketoprofen, COD and nitrogen compounds from pharmaceutical wastewater using aerobic suspension-sequencing batch reactor (ASSBR)[J]. Separation and Purification Technology, 2016, 157:215-221. NIKHIL G N, SUMAN P, VENKATA MOHAN S, et al. Energy-positive nitrogen removal of pharmaceutical wastewater by coupling heterotrophic nitrification and electrotrophic denitrification[J]. Chemical Engineering Journal,2017, 326:715-720. 王才,韩超,袁琳,等. 制药废水生化处理实验研究[J]. 给水排水,1999,14(3):41-43. ZHU L, LIU S, WANG X. Study on Pharmaceutical Wastewater by SBBR[J]. Applied Mechanics & Materials, 2013, 295/298:1380-1383. 李军,彭永臻,顾国维,等. SBBR同步硝化反硝化处理生活污水的影响因素[J]. 环境科学学报, 2006, 26(5):728-733. APHA. Standard Methods for the Examination of Water and Wastewater[S].American Public Health Association, New York,1995.
点击查看大图
计量
- 文章访问数: 158
- HTML全文浏览量: 19
- PDF下载量: 6
- 被引次数: 0