[1]刘牡,刘甜甜,彭永臻,等.盐度负荷冲击对厌氧-好氧组合工艺处理晚期垃圾渗滤液短程脱氮的影响[J].东南大学学报(自然科学版),2014,44(3):610-615.[doi:10.3969/j.issn.1001-0505.2014.03.028]
 Liu Mu,Liu Tiantian,Peng Yongzhen,et al.Effect of salinity shocks on nitrogen removal via nitrite of old landfill leachate using combination of anaerobic-aerobic process[J].Journal of Southeast University (Natural Science Edition),2014,44(3):610-615.[doi:10.3969/j.issn.1001-0505.2014.03.028]
点击复制

盐度负荷冲击对厌氧-好氧组合工艺处理晚期垃圾渗滤液短程脱氮的影响()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第3期
页码:
610-615
栏目:
环境科学与工程
出版日期:
2014-05-16

文章信息/Info

Title:
Effect of salinity shocks on nitrogen removal via nitrite of old landfill leachate using combination of anaerobic-aerobic process
作者:
刘牡刘甜甜彭永臻王淑莹肖寒
北京工业大学北京市水质科学与水环境恢复工程重点实验室, 北京100124
Author(s):
Liu Mu Liu Tiantian Peng Yongzhen Wang Shuying Xiao Han
Key Laboratory of Beijing Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
关键词:
晚期垃圾渗滤液 UASB-A/O 短程脱氮 盐度负荷冲击
Keywords:
old landfill leachate UASB-A/O shortcut nitrification-denitrification salinity shocks
分类号:
X703.1
DOI:
10.3969/j.issn.1001-0505.2014.03.028
摘要:
采用基于短程硝化的UASB-A/O组合工艺处理含盐晚期垃圾渗滤液,在不同盐度水平(10~35 g/L)研究了盐度负荷冲击对系统处理性能的综合影响.结果表明,组合系统在盐度为10~20 g/L范围内具有一定的抗盐度冲击能力,当盐度升高到35 g/L时,氨氮和总氮去除率分别下降至83.9%和68.4%,而有机物的去除率依然能够维持在90.1%.好氧污泥MLSS从4 129 mg/L下降至3 836 mg/L,SVI变化范围为91~119 mL/g,而同步反硝化产甲烷UASB中的厌氧污泥具有较强的抗盐度冲击能力.与DO相比,A/O采用pH值作为模糊控制参数具有更高的抗盐度负荷冲击能力.在盐度与游离氨的双重选择性抑制作用下,A/O出水亚硝酸积累率从94.3%提升到97.2%.
Abstract:
Saline old landfill leachate was treated via nitrite using an up-flow anaerobic sludge blanket(UASB)combining with an anoxic/aerobic(A/O)reactor. The influence of salinity shocks from 10 to 35 g/L on the performance of the system and the characteristics of the activated sludge were studied. Results indicate that the combined system exhibits certain resistance to the salinity shocks when salinity ranges from 10 to 20 g/L. With the further increase of salinity load to 35g/L, the ammonia and total nitrogen removal rates reduce to 83.9% and 68.4%, respectively, while the removal rate of organic matter still remains at 90.1%. MLSS(mixed liquid suspended solids)of aerobic sludge decrease from 4 129 to 3 836 mg/L and the SVI(sludge volume index)of aerobic sludge varies from 91 to 119 mL/g, while anaerobic sludge in UASB presents strong salinity shock resistance. Compared to dissolved oxygen, taking pH value as the fuzzy-control parameter in A/O reactor treating landfill leachate containing saline is a better choice. The nitrite accumulation rate of the effluent exhibits small range of ascension under the dual inhibitions of salinity and free ammonia.

参考文献/References:

[1] Wang K, Wang S Y, Zhu R L, et al. Advanced nitrogen removal from landfill leachate without addition of external carbon using a novel system coupling ASBR and modified SBR[J]. Bioresource Technology, 2013, 134: 212-218.
[2] Hoilijoki T H, Kettunen R H, Rintala J A. Nitrification of anaerobically pretreated municipal landfill leachate at low temperature[J]. Water Research, 2000, 34(5): 1435-1446.
[3] Peng Y Z, Zhang S J, Zeng W, et al. Organic removal by denitritation and methanogenesis and nitrogen removal by nitritation from landfill leachate[J]. Water Research, 2008, 42(4/5): 883-892.
[4] Gu S B, Wang S Y, Yang Q, et al. Start up partial nitrification at low temperature with a real-time control strategy based on blower frequency and pH[J]. Bioresource Technology, 2012, 112: 34-41.
[5] Hu X M, Chen Y W, Liao Y G, et al. High NH+4-N concentration wastewater treatment by shortcut nitrification-denitrification using a systemof A/O inner loop fluidized bed biofilm reactors[J]. Water Science and Technology,2013, 67(5): 1083-1091.
[6] Zhao W, Wang Y Y, Liu S H, et al. Denitrification activities and N2O production under salt stress with varying COD/N ratios and terminal electron acceptors[J]. Chemical Engineering Journal,2013, 215: 252-260.
[7] Hamoda M F, Alattar I. Effects of high sodium-chloride concentrations on activated-sludge treatment[J]. Water Science and Technology, 1995, 31(9): 61-72.
[8] Sudarno U, Winter J, Gallert C. Effect of varying salinity, temperature, ammonia and nitrous acid concentrations on nitrification of saline wastewater in fixed-bed reactors[J]. Bioresource Technology, 2011, 102(10): 5665-5673.
[9] Bassin J P, Dezotti M, Sant′Anna G L. Nitrification of industrial and domestic saline wastewaters in moving bed biofilm reactor and sequencing batch reactor[J]. Journal of Hazardous Materials, 2011, 185(1): 242-248.
[10] Dapena-Mora A, Vazquez-Padin J R, Campos J L, et al. Monitoring the stability of an anammox reactor under high salinity conditions[J]. Biochemical Engineering Journal, 2010, 51(3): 167-171.
[11] Sun C, Leiknes T, Weitzenbock J, et al. Salinity effect on a biofilm-MBR process for shipboard wastewater treatment[J]. Separation and Purification Technology, 2010, 72(3): 380-387.
[12] Cui Y W, Peng C Y, Peng Y Z, et al. Effects of salt on microbial populations and treatment performance in purifying saline sewage using the muct process[J]. Clean-Soil Air Water, 2009, 37(8): 649-656.
[13] Kerrnjespersen J P, Henze M, Strube R. Biological phosphorus release and uptake under alternating anaerobic and anoxic conditions in a fixed-film reactor[J]. Water Research,1994, 28(5): 1253-1255.
[14] Dahl C, Sund C, Kristensen G H, et al. Combined biological nitrification and denitrification of high-salinity wastewater[J]. Water Science and Technology,1997, 36(2/3): 345-352.
[15] Wu G, Guan Y, Zhan X. Effect of salinity on the activity, settling and microbial community of activated sludge in sequencing batch reactors treating synthetic saline wastewater[J]. Water Science and Technology, 2008, 58(2): 351-358.
[16] Chen G H, Wong M T, Okabe S, et al. Dynamic response of nitrifying activated sludge batch culture to increased chloride concentration[J]. Water Research, 2003, 37(13): 3125-3135.
[17] Panswad T, Anan C. Impact of high chloride wastewater on an anaerobic/anoxic/aerobic process with and without inoculation of chloride acclimated seeds[J]. Water Research, 1999, 33(5): 1165-1172.
[18] Magara Y, Nambu S, Utosawa K. Biochemical and physical-properties of an activated-sludge on settling characteristics[J]. Water Research, 1976, 10(1): 71-77.
[19] Campos J L, Mosquera-Corral A, Sanchez M, et al. Nitrification in saline wastewater with high ammonia concentration in an activated sludge unit[J]. Water Research, 2002, 36(10): 2555-2560.
[20] Zhang S J, Peng Y Z, Wang S Y, et al. Organic matter and concentrated nitrogen removal by shortcut nitrification and denitrification from mature municipal landfill leachate[J]. Journal of Environmental Sciences-China, 2007, 19(6): 647-651.

备注/Memo

备注/Memo:
收稿日期: 2013-10-20.
作者简介: 刘牡(1986—),男,博士生;彭永臻(联系人),男,博士,教授,博士生导师, pyz@bjut.edu.cn.
基金项目: 国家高技术研究发展计划(863计划)资助项目(2012AA063406)、北京市科技计划资助项目(D121100000112001).
引用本文: 刘牡,刘甜甜,彭永臻,等.盐度负荷冲击对厌氧-好氧组合工艺处理晚期垃圾渗滤液短程脱氮的影响[J].东南大学学报:自然科学版,2014,44(3):610-615. [doi:10.3969/j.issn.1001-0505.2014.03.028]
更新日期/Last Update: 2014-05-20