Comparison of sidestream and mainstream phosphorus recovery processes and analysis of regulatory factors
LI Lu1,2,3, ZHANG Yue1, SHAO Hong-yu1, NI Min1,2, HUANG Yong1,2, PAN Yang1,2
1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; 2. National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou 215009, China; 3. Jiangsu Provincial Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China
Abstract:Recovering phosphorus from wastewater is an effective way to alleviate the crisis of phosphate resources. At present, the common phosphorus recovery process in wastewater treatment plants is mainly the sidestream process to recover phosphorus from excess sludge, which has a shortage of complicated processes and low recovery efficiency. The mainstream phosphorus recovery process with biofilm can realize simultaneous removal and enrichment of phosphorus. The process is simple and efficient, thus has more development prospects. Due to the significant differences in operating principle and mode, the regulation measures for the two processes are not the same. In this paper, the A2O process and biofilm sequencing batch reactor process were taken as the representative and the similarities and differences in the operating principles and modes of the sidestream and mainstream phosphorus recovery processes were compared, also, the influences of regulatory factors such as temperature, pH, hydraulic residence time, dissolved oxygen, carbon source and phosphorus storage capacity on the two processes were summarized based on the metabolic mechanism of phosphorus accumulating bacteria. The differential mechanism was expounded to provide a reference for the further development of the phosphorus recovery process of biofilm.
Hao X, Yu W, Yuan T, et al.Unravelling key factors controlling vivianite formation during anaerobic digestion of waste activated sludge [J].Water Research, 2022,223:118976.
[2]
Zou H, Wang Y.Phosphorus removal and recovery from domestic wastewater in a novel process of enhanced biological phosphorus removal coupled with crystallization [J].Bioresource Technology, 2016,211:87-92.
[3]
蒋涛,田晴,李方,等.污水厂磷的富集原理与工艺及资源化回收新趋势[J].净水技术, 2022,41(7):7-16,35.Jiang T, Tian Q, Li F, et al.Principle and technology of phosphorus enrichment in WWTP and new trend of resource recovery [J].Water Purification Technology, 2022,41(7):7-16,35.
[4]
毕贞,武静,欧阳志康,等.聚磷生物膜法磷回收研究进展[J].微生物学通报, 2022,49(8):3387-3400.Bi Z, Wu J, Ouyang Z K, Zhang S, et al.Phosphorus recovery by polyphosphate-accumulating organisms biofilm system:a review [J].Microbiology China, 2022,49(8):3387-3400.
[5]
Salehi S, Cheng K Y, Heitz A, et al.Re-visiting the Phostrip process to recover phosphorus from municipal wastewater [J].Chemical Engineering Journal, 2018,343:390-398.
[6]
Zhao Q, Tian J, Zhang K, et al.Phosphate recovery from the P-enriched brine of AnMBR-RO-IE treating municipal wastewater via an innovated phosphorus recovery batch reactor with nano-sorbents [J].Chemosphere, 2021,284:131259.
[7]
张星宇,潘杨,李璐,等.BSBR工艺对城市污水中低浓度磷酸盐的富集优化[J].水处理技术, 2023,49(4):101-105.Zhang X Y, Pan Y, Li L, et al.Optimization of low concentration phosphate enrichment in municipal wastewater by BSBR process [J].Technology of Water Treatment, 2023,49(4):101-105.
[8]
王少坡,李柱,赵乐丹,等.长期低聚磷条件对AO-SBR系统Accumulibacter代谢特性的影响[J].环境科学, 2019,40(5):2333-2340.Wang S P, Li Z, Zhao L D, et al.Influence of long-term oligophosphate accumulation conditions on the metabolic characteristics of Accumulibacter in AO-SBR system [J].Environmental Science, 2019,40(5):2333-2340.
[9]
Lin Z, Wang Y, Huang W, et al.Single-stage denitrifying phosphorus removal biofilter utilizing intracellular carbon source for advanced nutrient removal and phosphorus recovery [J].Bioresource Technology, 2019,277:27-36.
[10]
张成,秦华星,王康伟,等.补充碳源对交替式厌氧/好氧生物滤池生物蓄磷/回收磷的影响[J].环境工程学报, 2015,9(8):3602-3608.Zhang C, Qin H X, Wang K W, et al.Effect of supplementary carbon sources on biological phosphorus storage/recovery in alternating anaerobic/aerobic biofilters [J].Chinese Journal of Environmental Engineering, 2015,9(8):3602-3608.
[11]
Tian Q, Ong S K, Xie X, et al.Enhanced phosphorus recovery and biofilm microbial community changes in an alternating anaerobic/aerobic biofilter [J].Chemosphere, 2016,144:1797-1806.
[12]
Kodera H, Hatamoto M, Abe K, et al.Phosphate recovery as concentrated solution from treated wastewater by a PAO-enriched biofilm reactor [J].Water Research, 2013,47(6):2025-2032.
[13]
Wong P Y, Cheng K Y, Krishna K C B, et al.Improvement of carbon usage for phosphorus recovery in EBPR-r and the shift in microbial community [J].Journal of Environmental Management, 2018,218:569-578.
[14]
Yang W, Shan J, Pan Y, et al.A new strategy for obtaining highly concentrated phosphorus recovery solution in biofilm phosphorus recovery process [J].Journal of Environmental Sciences, 2022,112:366-375.
[15]
徐伟锋,顾国维.生物除磷系统中聚磷菌与聚糖菌代谢模型比较[J].中国给水排水, 2006,22(14):5-9.Xu W F, Gu G W.Comparison of metabolic models of phosphorus accumulating bacteria and glycan bacteria in biological phosphorus removal system [J].China Water&Wastewater, 2006,22(14):5-9.
[16]
Acevedo B, Camiña C, Corona J E, et al.The metabolic versatility of PAOs as an opportunity to obtain a highly P-enriched stream for further P-recovery [J].Chemical Engineering Journal, 2015,270:459-467.
[17]
Shaddel S, Bakhtiary-Davijany H, Kabbe C, et al.Sustainable sewage sludge management:from current practices to emerging nutrient recovery technologies [J].Sustainability, 2019,11(12):3435.
[18]
翟德华,李廷梅,彭赵旭,等.强化厌氧池放磷环境对除磷效果的影响[J].工业水处理, 2021,41(4):93-96.Zhai D H, Li Y M, Peng Z X, et al.Effect of enhanced anaerobic tank phosphorus discharge environment on phosphorus removal effect [J].Industrial Water Treatment, 2021,41(4):93-96.
[19]
陈越,潘杨,倪敏,等.低碳源条件下BSBR工艺磷酸盐强化吸收影响因素分析[J].环境工程, 2022,40(9):69-73,191.Chen Y, Pan Y, Ni M, et al.Analysis of influencing factors of phosphate enhanced absorption in BSBR process under low carbon source condition [J].Environmental Engineering, 2022,40(9):69-73,191.
[20]
Li W W, Zhang H L, Sheng G P, et al.Roles of extracellular polymeric substances in enhanced biological phosphorus removal process [J].Water Research, 2015,86:85-95.
[21]
Liu X, Pei Q, Han H, et al.Functional analysis of extracellular polymeric substances (EPS) during the granulation of aerobic sludge:Relationship among EPS, granulation and nutrients removal [J].Environmental Research, 2022,208:112692.
[22]
杨婉静,潘杨,陈越,等.胞外聚合物在生物膜同步去除/富集磷酸盐系统中的作用[J].环境科学学报, 2021,41(9):3437-3445.Yang W J, Pan Y, Chen Y, et al.The role of extracellular polymer substances in simultaneous removal/enrichment of phosphate in biofilms system [J].Acta Scientiae Circumstantiae, 2021,41(9):3437-3445.
[23]
Long X Y, Tan R, Wang T, et al.Characteristics of enhanced biological phosphorus removal (EBPR) process under the combined actions of intracellular and extracellular polyphosphate [J].Chemosphere, 2021,279:130912.
[24]
李诚,王冬,王少坡.温度对2种碳源EBPR颗粒污泥系统的影响[J].工业水处理, 2021,41(5):86-92.Li C, Wang D, Wang S P.Effect of temperature on EBPR granular sludge system with two carbon sources [J].Industrial Water Treatment, 2021,41(5):86-92.
[25]
Shao Y, Wang Y, Wang H, et al.Effect of operating temperature on the efficiency of ultra-short-sludge retention time activated sludge systems [J].Environmental Science and Pollution Research, 2021, 28(29):39257-39267.
[26]
Chan C, Guisasola A, Baeza J A.Living on the edge:Prospects for enhanced biological phosphorus removal at low sludge retention time under different temperature scenarios [J].Chemosphere, 2020,258:127230.
[27]
Ni M, Pan Y, Chen Y, et al.Effects of seasonal temperature variations on phosphorus removal, recovery, and key metabolic pathways in the suspended biofilm [J].Biochemical Engineering Journal, 2021,176:108187.
[28]
王俊,郭明哲,尤俊豪,等.高海拔温度变化对活性污泥中磷去除及相关代谢途径的影响[J].中国环境科学, 2023,43(5):2364-2372.Wang J, Guo M Z, You J H, et al.Effects of temperature changes at high altitude on phosphorus removal and related metabolic pathways in activated sludge [J].China Environmental Science, 2023,43(5):2364-2372.
[29]
Qiu G L, Law Y Y, Rogelio Z M, et al.Global warming readiness:Feasibility of enhanced biological phosphorus removal at 35℃ [J].Water Research, 2022,216,118301.
[30]
周海蔚,龙向宇,唐然,等.温度与碳源类型对生物除磷性能和污泥沉降性能的影响[J].当代化工, 2022,51(8):1765-1772,1777.Zhou H W, Long X Y, Tang R.et al.Effects of temperature and carbon source type on biological phosphorus removal performance and sludge settling performance [J].Contemporary Chemical Industry, 2022,51(8):1765-1772,1777.
[31]
Liu H, Zeng W, Meng Q, et al.Phosphorus removal performance, intracellular metabolites and clade-level community structure of Tetrasphaera-dominated polyphosphate accumulating organisms at different temperatures [J].Science of the Total Environment, 2022,842:156913.
[32]
Fanta A B, Nair A M, Sægrov S, et al.Phosphorus removal from industrial discharge impacted municipal wastewater using sequencing batch moving bed biofilm reactor [J].Journal of Water Process Engineering, 2021,41:102034.
[33]
李楠,王秀蘅,亢涵,等.pH对低温除磷微生物种群与聚磷菌代谢的影响[J].环境科学与技术, 2013,36(3):9-11,19.Li N, Wang X H, Kang H, et al.Influence of pH on microbial community structure and metabolic characteristics of PAOs in biological phosphorus removal at low temperature [J].Environmental Science & Technology, 2013,36(3):9-11.
[34]
Oehmen A, Lemos P, Carvalho G, et al.Advances in enhanced biological phosphorus removal:From micro to macro scale [J].Water Research, 2007,41(11):2271-2300.
[35]
丁波涛,李刚,程柯森.初始pH值对新型好氧/缺氧/好氧/延长闲置(O/A/O/EI)序批式反应器脱氮除磷的研究[J].环境工程, 2015, 33(11):58-62,146.Ding B T, Li G, Cheng K S.Study on nitrogen and phosphorus removal in A novel aerobic/anoxic/aerobic/extended idle (O/A/O/EI) sequence batch reactor with initial pH value [J].Environmental Engineering, 2015,33(11):58-62,146.
[36]
Oehmen A, Teresa Vives M, Lu H, et al.The effect of pH on the competition between polyphosphate-accumulating organisms and glycogen-accumulating organisms [J].Water Research, 2005,39(15):3727-3737.
[37]
Smolders G J F, Van Der Meij J, Van Loosdrecht M C M, et al.Model of the anaerobic metabolism of the biological phosphorus removal process:Stoichiometry and pH influence [J].Biotechnology and Bioengineering, 1994,43(6):461-470.
[38]
吕永涛,曾玉莲,闫建平,等.pH对厌氧-限氧SBR同步脱氮除磷效果及N2O释放的影响[J].哈尔滨工业大学学报, 2018,50(2):54-58.Lv Y T, Ceng Y L, Yan J P, et al.Effect of pH on simultaneous nitrogen and phosphorus removal and N2O release in anaerobic-oxygen-restricted SBR [J].Journal of Harbin Institute of Technology, 2018,50(2):54-58.
[39]
殷成强,潘杨,郑莹,等.新型SBR工艺释磷影响因素分析[J].现代化工, 2017,37(3):80-83.Yin C Q, Pan Y, Zheng Y, et al.Analysis of influencing factors of phosphorus release in new SBR process [J].Modern Chemical Industry, 2017,37(3):80-83.
[40]
Ong Y H, Chua A S M, Lee B P, et al.Long-term performance evaluation of EBPR process in tropical climate:start-up, process stability, and the effect of operational pH and influent C:P ratio [J].Water Science and Technology, 2013,67(2):340-346.
[41]
Xu S, Wu D, Hu Z.Impact of hydraulic retention time on organic and nutrient removal in a membrane coupled sequencing batch reactor [J].Water Research, 2014,55:12-20.
[42]
王悦,邵宇婷,徐相龙,等.短泥龄活性污泥系统碳磷污染物去除机制及微生物结构分析[J].环境科学学报, 2021,41(1):118-125.Wang Y, Shao Y T, Xu X L, et al.Removal mechanism of carbon and phosphorus and microbial community structure analysis in short-SRT activated sludge system [J].Acta Scientiae Cirumstantiae, 2021,41(1):118-125.
[43]
曹亚丽,王霞,胡凯,等.水力停留时间对改良型AAO-MBR工艺处理夏季农村生活污水的影响[J].净水技术, 2022,41(2):58-62,86.Cao Y L, Wang X, Hu K, et al.Effect of HRT on performance of modified AAO-MBR process for rural domestic wastewater treatment in summer [J].Water Purification Technology, 2022,41(2):58-62,86.
[44]
Izadi P, Izadi P, Eldyasti A.Understanding microbial shift of Enhanced Biological Phosphorus Removal process (EBPR) under different Dissolved Oxygen (DO) concentrations and Hydraulic Retention Time (HRTs) [J].Biochemical Engineering Journal, 2021,166:107833.
[45]
Da Costa R E, Lobo-Recio M A, Battistelli A A, et al.Comparative study on treatment performance, membrane fouling, and microbial community profile between conventional and hybrid sequencing batch membrane bioreactors for municipal wastewater treatment [J].Environmental Science and Pollution Research, 2018,25(32):32767-32782.
[46]
Ferro T N, De Carvalho K Q, De Lima M X, et al.Influence of HRT and carbon source on the enhancement of nutrient removal in an Anaerobic-Oxic-Anoxic (AOA) system [J].Environmental Technology, 2022,43(16):2478-2491.
[47]
王景峰,王暄,田淑媛.SBR强化生物系统处理高浓度含磷废水[J].中国给水排水, 2003,19(5):61-63.Wang J F, Wang X, Tian S Y.SBR enhanced biological system for treatment of wastewater containing high concentration phosphorus [J].China Water&Wastewater, 2003,19(5):61-63.
[48]
HJ 576-2010厌氧-缺氧-好氧活性污泥法污水处理工程技术规范[S].HJ 576-2010 Technical Specification for Sewage Treatment engineering by anaerobic-Anoxic-aerobic Activated sludge process [S].
[49]
廖烜弘,潘杨,孟璇,等.不同填料下聚磷生物膜的驯化过程及性能[J].环境工程, 2018,36(12):119-124.Liao X H, Pan Y, Meng X, et al.Acclimation process and properties of phosphate-accumulating biofilms with different fillers [J].Environmental Engineering, 2018,36(12):119-124.
[50]
Chen Y, Li L, Zhang Y, et al.Phosphorus absorption and release in biofilm sequencing batch reactor:The combined action of cells and extracellular polymeric substances and the characteristics of polymer metabolism [J].Journal of Water Process Engineering, 2022,49:102979.
[51]
温林霄,潘杨,陈越,等.基于生物膜序批式反应器工艺的城市污水磷酸盐富集实验研究[J].环境科学学报, 2022,42(5):178-186.Wen L X, Pan Y, Chen Y, et al.Study on phosphate enrichment in municipal wastewater based on biofilm sequencing batch reactor process [J].Acta Scientiae Circumstantiae, 2022,42(5):178-186.
[52]
杨蕊春,俞小军,赵元添,等.溶解氧对EBPR主流除磷及侧流磷回收性能的影响[J].环境工程学报, 2020,14(2):387-394.Yang R C, Yu X J, Zhao Y T, et al.Effect of dissolved oxygen on main-stream phosphorus removal and sidestream phosphorus recovery performance of EBPR [J].Chinese Journal of Environmental Engineering, 2020,14(2):387-394.
[53]
Zhang H, Bi Z, Pan Y, et al.Enhanced phosphorus storage in suspended biofilm by increasing dissolved oxygen [J].Science of the Total Environment, 2020,722:137876.
[54]
Luo D, Yuan L, Liu L.Effect of dissolved oxygen on biological phosphorous removal in continuous-flow anoxic-oxic process using starch as sole carbon source [J].Journal of Environmental Engineering, 2018,144(6):04018037.
[55]
彭赵旭,霍明昕,彭永臻,等.DO对除磷过程的长期影响[J].哈尔滨工业大学学报, 2011,43(4):42-46.Peng Z X, Huo M X, Peng Y Z, et al.Long-term effect of DO on phosphorus removal process [J].Journal of Harbin Institute of Technology, 2011,43(4):42-46.
[56]
Dai X, Gu Z, Dai L, et al.Comparison of anaerobic phosphorus release from activated sludge with three carbon sources [J].Water Science and Technology, 2021,83(6):1327-1334.
[57]
Shen N, Chen Y, Zhou Y.Multi-cycle operation of enhanced biological phosphorus removal (EBPR) with different carbon sources under high temperature [J].Water Research, 2017,114:308-315.
[58]
Sun JX, Wang M, Zhang X, et al.Effect of carbon source type on phosphorus removal efficiency of MBBR and characteristics of fluorescent substances in water [J].Journal of Physics:Conference Series, 2021,2045(1):012028.
[59]
Shen N, Zhou Y.Enhanced biological phosphorus removal with different carbon sources [J].Applied Microbiology and Biotechnology, 2016,100(11):4735-4745.
[60]
Wang S, Li Z, Wang D, et al.Performance and population structure of two carbon sources granular enhanced biological phosphorus removal systems at low temperature [J].Bioresource Technology, 2020,300:122683.
[61]
蔡曼莎,吴苇杰,莫少庆,等.两种碳源对聚磷菌种群结构及除磷脱氮性能的影响[J].环境监测管理与技术, 2021,33(4):65-67,71.Cai M S, Wu W J, Mo S Q, et al.Effects of two carbon sources on population structure and phosphorus and nitrogen removal performance of phosphate-accumulating bacteria [J].Environmental monitoring management and technology, 2021,33(4):65-67,71.
[62]
王杰,彭永臻,杨雄,等.不同碳源种类对好氧颗粒污泥合成PHA的影响[J].中国环境科学, 2015,35(8):2360-2366.Wang J, Peng Y Z, Yang X, et al.Effect of different carbon sources on PHA synthesis from aerobic granular sludge [J].China Environmental Science, 2015,35(8):2360-2366.
[63]
Rey-Martínez N, Badia-Fabregat M, Guisasola A, et al.Glutamate as sole carbon source for enhanced biological phosphorus removal [J].Science of the Total Environment, 2019,657:1398-1408.
[64]
王伟,胡颖.淀粉作为碳源强化污水生物除磷的可行性及机理[J].水处理技术, 2018,44(6):38-41.Wang W, Hu Y.Feasibility and mechanism of using starch as carbon source to enhance biological phosphorus removal in wastewater [J].Technology of Water Treatment, 2018,44(6):38-41.
[65]
徐红梅.甘油碳源对市政污水强化生物除磷的影响及机理[J].水处理技术, 2018,44(9):70-74.Xu H M.Effect and mechanism of glycerol carbon source on enhanced biological phosphorus removal in municipal wastewater [J].Technology of Water Treatment, 2018,44(9):70-74.
[66]
Chen Y, Ruhyadi R, Huang J, et al.Comprehensive comparison of acidic and alkaline anaerobic fermentations of waste activated sludge [J].Bioresource Technology, 2021,323:124613.
[67]
Wang G, Wang D, Huang L, et al.Enhanced production of volatile fatty acids by adding a kind of sulfate reducing bacteria under alkaline pH [J].Colloids and Surfaces B:Biointerfaces, 2020,195:111249.
[68]
He J, Pang H, Pan X, et al.An innovative cation regulation-based anaerobic fermentation strategy for enhancing short-chain fatty acids production from waste activated sludge:Metal ion removal coupled with Na+-regulation [J].Bioresource Technology, 2021,331:124921.
[69]
Shanableh A, Jomaa S.Hydrothermal treatment and recycling of organic by-products from sludge-onfirmation of by-products availability for biological nutrient removal [J].Journal of Environmental Engineering and Science, 2006,5(6):473-483.
[70]
曲红,石雪颖,聂泽兵,等.不同C/P下AOA-SBR工艺磷形态转化规律及污泥特性[J].中国环境科学, 2022,42(1):92-101.Qu H, Shi X Y, Nie Z B, et al.Phosphorus transformation rule and sludge characteristics of AOA-SBR process under different C/P conditions [J].China Environmental Science, 2022,42(1):92-101.
[71]
Majed N, Gu A Z.Phenotypic dynamics in polyphosphate and glycogen accumulating organisms in response to varying influent C/P ratios in EBPR systems [J].Science of the Total Environment, 2020, 743:140603.
[72]
邓颖,俞小军,蔡雨麒,等.不同C/P下低耗EBPR的脱氮除磷及侧流磷回收性能[J].工业水处理, 2022,42(7):154-160.Deng Y, Yu X J, Cai Y Q, et al.Nitrogen and phosphorus removal and side flow phosphorus recovery performance of low consumption EBPR at different C/P [J].Industrial Water Treatment, 2022,42(7):154-160.
[73]
宋新新,范海涛,黄冬,等.影响EBPR系统运行效果的主要因素研究进展[J].环境保护科学, 2018,44(3):53-61.Song X X, Fan H T, Huang D, et al.Research progress on the main factors affecting the operation effect of EBPR system [J].Environmental Protection Science, 2018,44(3):53-61.
[74]
张园,罗固源,许晓毅,等.UCT工艺进水COD浓度与C/N对除磷效果的影响[J].环境科学, 2010,31(8):1846-1850.Zhang Y, Luo G Y, Xu X Y, et al.Effect of influent COD concentration and C/N on phosphorus removal in UCT process [J].Environmental Science, 2010,31(8):1846-1850.
[75]
郝晓地,李季,赵梓丞,等.侧流磷回收强化主流脱氮除磷微观现象评价[J].环境工程学报, 2021,15(11):3677-3685.Hao X D, Li J, Zhao Z C, et al.Evaluation of microcosmic phenomena on enhancing main-stream biological nutrient removal by side-stream phosphate recovery [J].Chinese Journal of Environmental Engineering, 2021,15(11):3677-3685.
[76]
Zhang H L, Fang W, Wang Y P, et al.Phosphorus removal in an enhanced biological phosphorus removal process:Roles of extracellular polymeric substances [J].Environmental Science & Technology, 2013,47(20):11482-11489.
[77]
方振东,仙光,龙向宇,等.胞外聚合物磷酸盐形态对生物除磷过程的影响研究[J].环境科学学报, 2014,34(9):2205-2212.Fang Z D, Xian G, Long X Y, et al.Effect of phosphate species in extracellular polymer substances on biological phosphorus removal process [J].Acta Scientiae Circumstantiae, 2014,34(9):2205-2212.
[78]
Zeng F, Jin W, Zhao Q.Temperature effect on extracellular polymeric substances (EPS) and phosphorus accumulating organisms (PAOs) for phosphorus release of anaerobic sludge [J].RSC Advances, 2019,9(4):2162-2171.
[79]
Li Y, Wu Y, Wang S, et al.Effect of organic loading on phosphorus forms transformation and microbial community in continuous-flow A2/O process [J].Water Science and Technology, 2021,83(11):2640-2651.
[80]
单捷,潘杨,章豪,等.基于生物膜法磷回收工艺厌氧释磷研究[J].环境科学学报, 2020,40(8):2749-2757.Shan J, Pan Y, Zhang H, et al.The anaerobic phosphorus release of biofilm-based phosphorus recovery process [J].Acta Scientiae Circumstantiae, 2020,40(8):2749-2757.