DONG Shan yan,CHEN Gang,CHI Chun rong,et al.Effect of Anaerobic Environment on Performance of UNITANK Process[J].China Water & Wastewater,2018,34(21):74-79.
厌氧环境对UNITANK工艺性能的影响
- Title:
- Effect of Anaerobic Environment on Performance of UNITANK Process
- 文章编号:
- 1000-4602(2018)21-0074-06
- 分类号:
- TU992.3
- 文献标志码:
- C
- 摘要:
- 以赣南地区低碳源实际城市污水为研究对象,分析了UNITANK工艺中边池厌氧时间对系统脱氮除磷性能的影响。结果表明,当内回流比为100%时,随着边池厌氧时间的增加,TN去除率呈现先增加后减小的趋势,而TP去除率则逐渐增大;边池厌氧时间对COD、NH3-N的去除效果影响较小。当厌氧时间为60 min时,出水COD、NH3-N、TN、TP的平均浓度分别为11.07、0.93、11.78、0.85 mg/L,除TP外其他3项指标均优于《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准要求;通过考察试验装置边池半周期内各组分浓度的动态变化,在边池厌氧时间为100 min的条件下,厌氧释磷现象最为明显,边池NO-2-N积累浓度最高,边池存在反硝化过程和释磷过程对碳源的竞争问题。
- Abstract:
- The effect of the anaerobic time in the side tank on the efficiency of nitrogen and phosphorus removal of the UNITANK process was investigated based on the actual municipal sewage from the south Jiangxi area. The results showed that when the internal reflux ratio was 100%, with the increase of the anaerobic time in the side tank, the removal rate of TN was firstly increased and then decreased, while the removal rate of TP increased gradually. The anaerobic time in the side tank had negligible effect on the removal efficiency of COD and NH3-N. When the anaerobic time was 60 min, the average concentrations of effluent COD, NH3-N, TN and TP were 11.07 mg/L, 0.93 mg/L, 11.78 mg/L and 0.85 mg/L, respectively. All indicators except TP had satisfied the first level A standard in the Discharge Standards of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The dynamic changes of the component concentrations in the half cycle of the side tank were investigated. When the anaerobic time in the side tank was 100 min, the anaerobic phosphorus release was obvious, and the concentration of NO-2-N in the side tank was at the highest level. The processes of denitrification and phosphorus release in the side tank competed for the carbon source.
参考文献/References:
[1]罗隽,周秀秀,林方敏,等. 南方某污水厂UNITANK工艺的活性污泥性状评估[J]. 中国给水排水,2016,32(1):31-34.
Luo Jun,Zhou Xiuxiu,Lin Fangmin,et al. Evaluation of characteristics of activated sludge in UNITANK process in a WWTP in South China[J]. China Water & Wastewater,2016,32(1):31-34(in Chinese).
[2]廖振良,朱柏荣,叶建锋. UNITANK工艺机理及其研究进展[J]. 水处理技术,2009,35(1):20-23.
Liao Zhenliang,Zhu Bairong,Ye Jianfeng. Progress of UNITANK process and mechanism[J]. Technology of Water Treatment,2009,35(1):20-23(in Chinese).
[3]雷明,张勇,徐廷国,等. UNITANK工艺强化生物除磷运行矩阵的确定[J]. 工业水处理,2011,31(9):41-43.
Lei Ming,Zhang Yong,Xu Tingguo,et al. Study on the running matrix of enhanced biological dephosphorization by UNITANK process[J]. Industrial Water Treatment,2011,31(9):41-43(in Chinese).
[4]陈婉如,张勇,崔松阳. 提高UNITANK工艺去除氨氮效能的研究[J]. 中国给水排水,2011,27(11):84-87.
Chen Wanru,Zhang Yong,Cui Songyang. Measures for improving ammonia nitrogen removal efficiency by UNITANK process[J]. China Water & Wastewater,2011,27(11):84-87(in Chinese).
[5]罗隽,周秀秀,刘畅,等. 南方某UNITANK工艺污水处理厂活性污泥性状改善[J]. 中国给水排水,2016,32(16):119-122.
Luo Jun,Zhou Xiuxiu,Liu Chang,et al. Improvement of activated sludge performance in a wastewater treatment plant with UNITANK process in South China[J]. China Water & Wastewater,2016,32(16):119-122(in Chinese).
[6]陶芳,黄燕,高尚,等. PCRDGGE法分析温度对A2/O系统硝化菌群结构的影响[J]. 华东师范大学学报:自然科学版,2009,(5):53-62.
Tao Fang,Huang Yan,Gao Shang,et al. Application of PCRDGGE to analyze the effect of temperature on structure of nitrifying bacteria in A2/O system[J]. Journal of East China Normal University:Natural Science,2009,(5):53-62(in Chinese).
[7]赵梦月,王博,郭媛媛,等. 部分短程硝化SBR实现低C/N比生活污水碳源的充分利用[J]. 化工学报,2016,67(11):4825-4836.
Zhao Mengyue,Wang Bo,Guo Yuanyuan,et al. Efficient organics utilization of low C/N ratio domestic sewage through partial nitritation SBR[J]. CIESC Journal,2016,67(11):4825-4836(in Chinese).
[8]王社平,邵军峰,万琼,等. A2/O工艺中二沉池污泥上浮的原因与对策[J]. 中国给水排水,2010,26(13):43-45.
Wang Sheping,Shao Junfeng,Wan Qiong,et al. Causes and countermeasures on sludge floating in secondary sedimentation tank in A2/O process[J]. China Water & Wastewater,2010,26(13):43-45(in Chinese).
[9]葛勇涛,焦阳,李军,等. 乙酸钠碳源强化生物滤池对二沉池出水的脱氮效果[J]. 中国给水排水,2011,27(7):98-100.
Ge Yongtao,Jiao Yang,Li Jun,et al. Sodium acetate as carbon source for enhancing nitrogen removal from secondary effluent with biological filter[J]. China Water & Wastewater,2011,27(7):98-100(in Chinese).
[10]徐建宇,陈腾殊,罗阳,等. 回流污泥比对厌氧释磷效果的影响[J]. 云南化工,2001,38(1):20-23.
Xu Jianyu,Chen Tengshu,Luo Yang,et al. Effect of recycle ratio on phosphorus removal of anaerobic process[J]. Yunnan Chemical Technology,2001,38(1):20-23(in Chinese).
备注/Memo
基金项目:国家自然科学基金资助项目(51464014);江西省教育厅科学技术研究项目(GJJ150662);江西理工大学博士启动基金资助项目(3401223198)
作者简介:
董姗燕(1977- ),女,安徽明光人,博士,讲师,主要从事污水处理工艺仿真及优化研究。
E-mail:wydeccr@163.com
收稿日期:2018-04-23