长泥龄改良A2/O工艺的短程硝化反硝化除磷

doi:10.3969/j.issn.0438-1157.2014.12.046

化工学报 ›› 2014, Vol. 65 ›› Issue (12): 4985-4996.DOI: 10.3969/j.issn.0438-1157.2014.12.046

长泥龄改良A²/O工艺的短程硝化反硝化除磷

罗亚红^1,2, 李冬¹, 鲍林林¹, 许达², 蔡言安², 张杰^2,3

1. 河南师范大学环境学院黄淮水环境与污染防治省部共建教育部重点实验室、河南省环境污染控制重点实验室, 河南新乡 453007;
2. 北京工业大学水质科学与水环境恢复工程北京市重点实验室, 北京 100124;
3. 哈尔滨工业大学城市水资源与水环境国家重点实验室, 黑龙江哈尔滨 150090

收稿日期:2014-05-16 修回日期:2014-07-03 出版日期:2014-12-05 发布日期:2014-12-05
通讯作者: 李冬
基金资助:
国家科技重大专项水专项(2012ZX07202-005).

Shortcut nitrification and denitrifying phosphorus removal in improved A²/O technique with long SRT

LUO Yahong^1,2, LI Dong¹, BAO Linlin¹, XU Da², CAI Yan'an², ZHANG Jie^2,3

1. School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, Henan, China;
2. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China;
3. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China

Received:2014-05-16 Revised:2014-07-03 Online:2014-12-05 Published:2014-12-05
Supported by:
supported by the National Water Pollution Control and Management Technology Major Projects (2012ZX07202-005).

摘要/Abstract

摘要： 为解决传统A²/O工艺硝化与除磷泥龄(SRT)之间的矛盾,进一步提高低C/N(P)比生活污水同步脱氮除磷效率,采用一种改良A²/O工艺在长SRT条件下处理生活污水.试验结果表明,该工艺可有效筛选和强化反应器内活性污泥,并大量富集长SRT的反硝化除磷菌(DPAO).通过亚硝酸盐氧化菌(NOB)淘洗阶段后,反应器在SRT=19.6d、A²O段污泥浓度(MLSS)=5.5 g·L^-1、水力停留时间(HRT)=8.2 h、污泥回流比(R)=90%、硝化液回流比(r)=250%、溶解氧(DO)=1.5～0.3 mg·L^-1,间歇曝气段HRT=4 h、曝气周期1 h曝气1 min(DO=0.3～0.5 mg·L^-1)、沉淀59 min条件下长期运行,COD、NH₄⁺-N、TP和TN的平均去除率分别为88.71%、99.2%、93.77%和89.52%,出水亚硝化率(NO₂^--N/NO_x^--N)可达97.2%,DPAO占聚磷菌(PAO)比为95.5%.污水中约72.96%的COD被DPAO合成PHA除磷,15.75%的COD由异养反硝化消耗,约41.96%和31.31%的N分别通过反硝化除磷和异养反硝化去除.剩余污泥主要由DPAO和反硝化菌增殖产生,分别占82.74%和17.24%,较传统脱氮除磷途径减少了58.76%的碳源消耗和44.6%的污泥排放.

关键词: A²/O, 厌氧, 需氧, 废水, 低C/N比, 反硝化除磷, 短程硝化

Abstract: Aiming at solving the contradiction of sludge retention time (SRT) between nitrification and dephosphorization, and enhancing the simultaneous nitrogen (N) and phosphorus (P) removal efficiency of the low C/N (P) ratio domestic sewage in the traditional A²/O process, an improved A²/O technique with long SRT was developed. The novel process could select and strengthen the activated sludge, and enrich the denitrifying phosphorus accumulating organisms (DPAO) with long SRT effectively. After washing out nitrite oxidizing bacteria (NOB), the reactor ran under the condition of SRT=19.6 d, and sludge concentration (MLSS)=5.5 g·L^-1, hydraulic retention time (HRT)=8.2 h, sludge return ratio (R)=90%, nitrated liquid reflux ratio (r)=250%, dissolved oxygen (DO)=1.5—0.3 mg·L^-1 for the A²/O zone. HRT=4 h, aeration cycle was 1 h, aeration time was 1 min (DO=0.3—0.5 mg·L^-1) and settling time was 59 min for the intermittent aeration zone. Average removal rate of COD, NH₄⁺-N, TP and TN reached 88.71%, 99.2%, 93.77% and 89.52% respectively, nitrosation rate (NO₂^--N/NO_x^--N) was up to 97.2%, and DPAO/PAO ratio in sludge was 95.5%, and the final effluent met the first class level A of the GB 18918—2002 standard. It was found that about 72.96% of COD in sewage was utilized by DPAO for PHA production to accumulate P, 15.75% of COD was consumed by heterotrophic denitrifying bacteria, and about 41.96% and 31.31% of N were wiped off through phosphorus removal and heterotrophic denitrifying. The discharged sludge was mainly composed of the biomass of DPAO and denitrifying bacteria, accounting for 82.74% and 17.24% respectively. The technique could reduce 58.76% of carbon source consumption and 44.6% of sludge discharge comparing to the traditional nitrogen phosphorus removal pathway.

Key words: A²/O, anaerobic, aerobic, waste water, low C/N ratio, denitrifying phosphorus removal, partial nitrification

中图分类号:

X703.1

罗亚红, 李冬, 鲍林林, 许达, 蔡言安, 张杰. 长泥龄改良A²/O工艺的短程硝化反硝化除磷[J]. 化工学报, 2014, 65(12): 4985-4996.

LUO Yahong, LI Dong, BAO Linlin, XU Da, CAI Yan'an, ZHANG Jie. Shortcut nitrification and denitrifying phosphorus removal in improved A²/O technique with long SRT[J]. CIESC Journal, 2014, 65(12): 4985-4996.

参考文献 28

[1]	Wan Q, Feng Q, Peng D C, Jing, S P. A pilot study on the volume ratio of anaerobic/anoxic/aerobic in A2/O process influence on nitrogen and phosphorus removal. Advances in Environmental Science and Engineering, PTS 1-6 [J]. Advanced Materials Research, 2012, 518-523: 2980-2985
[2]	Wu Changyong (吴昌永),Peng Yongzhen(彭永臻),Peng Yi(彭轶). Biological nutrient removal in A2/O process when treating low C/N ratio domestic wastewater [J]. Journal of Chemical Industry and Engineering (China) (化工学报), 2008, 59(12): 3126-3131
[3]	Cervantes F J, De la Rosa D A, Gomez J. Nitrogen removal from wastewaters at low C/N ratios with ammonium and acetate as electron donors [J]. Bioresource Technology, 2001, 79(2): 165-170
[4]	Fux C, Boehler M, Huber P, Brunner I, Siegrist H. Biological treatment of ammonium-rich wastewater by partial nitritation and subsequent anaerobic ammonium oxidation (anammox) in a pilot plant [J]. Journal of Biotechnology, 2002, 99(3): 295-306
[5]	Lee D S, Jeon C O, Park J M. Biological nitrogen removal with enhanced phosphate uptake in a sequencing batch reactor using single sludge system [J]. Water Research, 2001, 35(16): 3968-3976
[6]	Merzouki M, Bernet N, Delgenes J P, Moletta R, Benlemlih M. Biological denitrifying phosphorus removal in SBR: effect of added nitrate concentration and sludge retention time [J]. Water Science and Technology, 2001, 43(3): 191-194
[7]	Fu Jinxiang(傅金祥),Zhao Lu(赵璐),Chi Fuqiang(池福强),Wang Zhi (王智),Wang Haibiao (王海彪). Research on the affecting factors of denitrifying phosphorus removal with nitrite [J]. Journal of Shenyang Jianzhu University: Natural Science (沈阳建筑大学学报:自然科学版), 2009, 25(3): 531-534
[8]	Liu Jianguang (刘建广),Fu Kunming(付昆明),Yang Yifei(杨义飞),Zhang Weijian (张维健). Effect of electron acceptors on anoxic phosphorus uptake of DPB [J]. Environmental Science (环境科学), 2007, 28(7): 1472-1476
[9]	The Environmental Protection Agency of State (国家环境保护总局). The Monitoring and Analysis Methods of Water and Wastewater (水和废水监测分析方法)[M]. Beijing: China Environmental Science Press, 2002: 100-104
[10]	Wachtmeister A, Kuba T, Vanloosdrecht M, Heijnen J J. A sludge characterization assay for aerobic and denitrifying phosphorus removing sludge [J]. Water Research, 1997, 31(3): 471-478
[11]	Comeau Y, Hall K J, Oldham W K. Determination of poly-beta- hydroxybutyrate and poly-beta-hydroxyvalerate in activated-sludge by gas-liquid-chromatography [J]. Applied and Environmental Microbiology, 1988, 54(9): 2325-2327
[12]	Rensink J H, Donker H, Simons T. Phosphorus removal at low sludge loadings [J]. Water Science and Technology, 1985, 17(11-1): 177-186
[13]	Yoo K, Ahn K H, Lee H J, Lee K H, Kwak Y J, Song K G. Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrite in an intermittently- aerated reactor [J]. Water Research, 1999, 33(1): 145-154
[14]	Hanaki K, Wantawin C, Ohgaki S. Nitrification at low-levels of dissolved-oxygen with and without organic loading in a suspended-growth reactor [J]. Water Research, 1990, 24(3): 297- 302
[15]	Hellinga C, Schellen A, Mulder J W, van Loosdrecht M C M, Heijnen J J. The SHARON process: an innovative method for nitrogen removal from ammonium-rich waste water [J]. Water Science and Technology, 1998, 37(9): 135-142
[16]	Ge Shijian(葛士建),Wang Shuying(王淑莹),Cao Xu(曹旭),Ma Bin(马斌),Lu Congcong(路聪聪),Peng Yongzhen(彭永臻). Achievement and maintenance of denitrifying phosphorus removal in step feed nutrient removal process [J]. CIESC Journal (化工学报), 2011, 62(9): 2615-2622
[17]	Liu H B, Zhu M L, Gao S S, Xia, S Q, Sun, L P. Enhancing denitrification phosphorus removal with a novel nutrient removal process: role of configuration [J]. Chemical Engineering Journal, 2014, 240: 404-412
[18]	Chen Yongzhi (陈永志), Peng Yongzhen(彭永臻), Wang Jianhua (王建华). Denitrifying phosphorus removal in A2/O-BAF process [J]. CIESC Journal (化工学报), 2011, 62(3): 797-804
[19]	Tsuneda S, Ohno T, Soejima K, Hirata A. Simultaneous nitrogen and phosphorus removal using denitrifying phosphate-accumulating organisms in a sequencing batch reactor [J]. Biochemical Engineering Journal, 2006, 27(3): 191-196
[20]	Zhang Chuanyi(张传义). Study on enanced denitrifying phosphorus removal in the A-(O/A)n-SMBR process treating domestic wastewater [D]. Xuzhou: China University of Mining & Technology, 2010
[21]	Li Lingyun (李凌云), Peng Yongzhen(彭永臻), Li Lun (李论), Wang Shuying (王淑莹). On-line determination and variations of specific oxygen uptake rate in activated sludge system [J]. CIESC Journal (化工学报), 2010, 61(4): 995-1000
[22]	Liu Y, Wang Z W, Tay J H. A unified theory for upscaling aerobic granular sludge sequencing batch reactors [J]. Biotechnology Advances, 2005, 23(5): 335-344
[23]	Winkler M, Bassin J P, Kleerebezem R, de Bruin L M M, van den Brand T P H, van Loosdrecht M C M. Selective sludge removal in a segregated aerobic granular biomass system as a strategy to control PAO-GAO competition at high temperatures [J]. Water Research, 2011, 45(11): 3291-3299
[24]	Gujer W, Henze M, Mino T, Matsuo T, Wentzel M C, Vonmarais G. The activated-sludge model No.2: biological phosphorus removal [J]. Water Science and Technology, 1995, 31(2): 1-11
[25]	Jorgensen K S, Pauli A. Polyphosphate accumulation among denitrifying bacteria in activated-sludge [J]. Anaerobe, 1995, 1(3): 161-168
[26]	Jiang Yifeng (蒋轶锋), Zheng Jianjun(郑建军), Wang Baozhen(王宝贞), Wang Lin(王琳), Chen Jianmeng (陈建孟). Comparison of biological phosphorus removal between different systems using O2, NO-3 and NO2- as electron acceptors [J]. Environmental Science (环境科学), 2009, 30(2): 421-426
[27]	Murnleitner E, Kuba T, Vanloosdrecht M, Heijnen J J. An integrated metabolic model for the aerobic and denitrifying biological phosphorus removal [J]. Biotechnology and Bioengineering, 1997, 54(5): 434-450
[28]	Henze M. Wastewater Treatment: Biological and Chemical Processes [M]. Berlin, Heidelberg: Springer, 2002: 55-111

长泥龄改良A²/O工艺的短程硝化反硝化除磷

Shortcut nitrification and denitrifying phosphorus removal in improved A²/O technique with long SRT

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 28

相关文章 15

编辑推荐

Metrics

本文评价

[1]	杨百玉, 寇悦, 姜峻韬, 詹亚力, 王庆宏, 陈春茂. 炼化碱渣湿式氧化预处理过程DOM的化学转化特征[J]. 化工学报, 2023, 74(9): 3912-3920.
[2]	杨欣, 彭啸, 薛凯茹, 苏梦威, 吴燕. 分子印迹-TiO₂光电催化降解增溶PHE废水性能研究[J]. 化工学报, 2023, 74(8): 3564-3571.
[3]	吕龙义, 及文博, 韩沐达, 李伟光, 高文芳, 刘晓阳, 孙丽, 王鹏飞, 任芝军, 张光明. 铁基导电材料强化厌氧去除卤代有机污染物：研究进展及未来展望[J]. 化工学报, 2023, 74(8): 3193-3202.
[4]	张艳梅, 袁涛, 李江, 刘亚洁, 孙占学. 高效SRB混合菌群构建及其在酸胁迫条件下的性能研究[J]. 化工学报, 2023, 74(6): 2599-2610.
[5]	胡南, 陶德敏, 杨照岚, 王学兵, 张向旭, 刘玉龙, 丁德馨. 铁炭微电解与硫酸盐还原菌耦合修复铀尾矿库渗滤水的研究[J]. 化工学报, 2023, 74(6): 2655-2667.
[6]	张兰河, 赖青燚, 王铁铮, 关潇卓, 张明爽, 程欣, 徐小惠, 贾艳萍. H₂O₂对SBR脱氮效率和污泥性能的影响[J]. 化工学报, 2023, 74(5): 2186-2196.
[7]	闫新龙, 黄志刚, 胡清勋, 张新, 胡晓燕. Cu/Co掺杂多孔炭活化过硫酸盐降解水中硝基酚研究[J]. 化工学报, 2023, 74(3): 1102-1112.
[8]	黄玉龙, 吕凡, 仇俊杰, 章骅, 何品晶. 易腐垃圾厌氧消化沼液理化性质及VOCs分子特征[J]. 化工学报, 2023, 74(3): 1275-1285.
[9]	章承浩, 罗京, 张吉松. 微反应器内基于氮氧自由基催化剂连续氧气/空气氧化反应的研究进展[J]. 化工学报, 2023, 74(2): 511-524.
[10]	李承威, 骆华勇, 张铭轩, 廖鹏, 方茜, 荣宏伟, 王竞茵. 氢氧化镧交联壳聚糖微球的微流控制备及其除磷性能[J]. 化工学报, 2022, 73(9): 3929-3939.
[11]	赵希强, 张健, 孙爽, 王文龙, 毛岩鹏, 孙静, 刘景龙, 宋占龙. 生物质炭改性微球去除化工废水中无机磷的性能研究[J]. 化工学报, 2022, 73(5): 2158-2173.
[12]	贾艳萍, 丁雪, 刚健, 佟泽为, 张海丰, 张兰河. Mn强化Fe/C微电解工艺条件优化及降解油墨废水机理[J]. 化工学报, 2022, 73(5): 2183-2193.
[13]	毛恒, 王月, 王森, 刘伟民, 吕静, 陈甫雪, 赵之平. APTES改性ZIF-L/PEBA混合基质膜强化渗透汽化分离苯酚研究[J]. 化工学报, 2022, 73(3): 1389-1402.
[14]	王祺, 房阔, 贺聪慧, 王凯军. 流动电极电容去离子技术综述：研究进展与未来挑战[J]. 化工学报, 2022, 73(3): 975-989.
[15]	王燕杉, 朱小超, 宋英今, 李易航. 草屑厌氧消化预处理耦合水热炭化研究[J]. 化工学报, 2022, 73(2): 904-913.