|
|
|
| Pilot application study of the LEP-N-MBR system |
| TANG Kai1, SONG Can-hui2, CAO Qian-fei1, AN Tian-yi1, LIU Yang1, ZHOU Fan3, DU Gui-quan1, SUN Fa-qian4, CHEN Chong-jun1,5 |
1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;
2. Suzhou Suke Environmental Technology Co., Ltd., Suzhou 215001, China;
3. Jiangsu Chuangsheng Environmental Monitoring Technology Co., Ltd., Suzou 215011, China;
4. College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China;
5. Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China |
|
|
|
|
Abstract This study focuses on the reciprocating vibration membrane bioreactor (VMBR) technology and has established a pilot-scale low energy consumption reciprocating membrane bioreactor (LEP-N-MBR) system to treat the A2/O effluent from wastewater treatment plants, with a treatment capacity of 350m3/d. The findings revealed that during the entire operation, the energy consumption of the vibration membrane was only 0.020 (kW·h)/m3, which significantly reduced the energy consumption of the MBR. At a sludge concentration (MLSS) of 3000mg/L, the removal rates for TN and COD were 53.78% and 61.76%, respectively, with an effluent NH4+-N concentration of only 0.51mg/L. However, when the MLSS increased to 6000mg/L, the effluent NH4+-N concentration increased to 2.07mg/L, and compared to when the MLSS was 3000mg/L, the membrane operation cycle was shortened by 33.3%. Batch testing indicated that the maximum ammonia oxidation rate and denitrification rate of the system's sludge were 3.65 and 5.55mg/(g·h), respectively. High-throughput sequencing indicated that under low-nutrient conditions, the reciprocating vibration membrane facilitated the release of organic matter on the membrane surface, which was then utilized by microorganisms such as Hyphomicrobium and norank_f__Microtrichaceae to enhance nitrogen removal efficiency through metabolic processes. The low-consumption and high-efficiency pilot LEP-N-MBR system can provide new technical perspectives and theoretical guidance for urban wastewater treatment plants, and assist in achieving the goals of “dual carbon”.
|
|
Received: 25 July 2024
|
|
|
|
|
|
[1] Zhang Q, Wu Q, Xie Y, et al. A novel carbon emission evaluation model for anaerobic-anoxic-oxic urban sewage treatment [J]. Journal of Environmental Management, 2024,350:119640.
[2] 程东兴,胡以松,屈 艺,等.AnMBR处理剩余污泥与厨余共消化的效能研究 [J]. 中国环境科学, 2023,43(9):4676-4687.Cheng D X, Hu Y S, Qu Y, et al. Study on the performance of AnMBR in treating the co-digestion of sewage sludge and food waste [J]. China Environmental Science, 2023,43(9):4676-4687.
[3] 李社锋,张家琛,冯 巍,等.膜生物反应器研究新进展与应用 [J]. 环境工程, 2024,42(1):37-46.Li D F, Zhang J C, Feng W, et al. Overview and research progress of membrane bioreactor process [J]. Environmental Engineering, 2024, 42(1):37-46.
[4] Tang K, Xie J, Pan Y, et al. The optimization and regulation of energy consumption for MBR process: A critical review [J]. Journal of Environmental Chemical Engineering, 2022,10(5):108406.
[5] 周 海.振动膜技术在高含盐废水处理中的应用 [J]. 中国给水排水, 2017,33(2):105-7.Zhou H. Application of vibrating membrane technology to treatment of hypersaline wastewater [J]. China Water & Wastewater, 2017,33(2): 105-107.
[6] Kaya R, Ersahin M E, Ozgun H, et al. Vibratory membrane bioreactor systems in wastewater treatment: A short review [J]. Journal of Water Process Engineering, 2023,53:103865.
[7] Wang C, Ng T C A, Ng H Y. Comparison between novel vibrating ceramic MBR and conventional air-sparging MBR for domestic wastewater treatment: Performance, fouling control and energy consumption [J]. Water Research, 2021,203:117521.
[8] Nguyen P T, Phuc Hanh Tran D, Le Lt, et al. Characterization of reciprocation membrane bioreactor on treatment performance, energy consumption and membrane fouling [J]. Bioresource Technology, 2023,381:129146.
[9] Rice E W, Bridgewater L, Association A P H. Standard methods for the examination of water and wastewater [M]. American public health association Washington, DC, 2012.
[10] Guo M, Jiang Y, Xie J, et al. Bamboo charcoal addition enhanced the nitrogen removal of anammox granular sludge with COD: Performance, physicochemical characteristics and microbial community [J]. Journal of Environmental Sciences, 2022,115:55-64.
[11] Xie J, Cao Q, An T, et al. Small biochar addition enhanced anammox granular sludge system for practical wastewater treatment: Performance and microbial community [J]. Bioresource Technology, 2022,363:127749.
[12] Li S, Guo Y, Zhang X, et al. Advanced nitrogen and phosphorus removal by the symbiosis of PAOs, DPAOs and DGAOs in a pilot-scale A2O/A+MBR process with a low C/N ratio of influent [J]. Water Research, 2023,229:119459.
[13] 刘 钢,王 丽,温榛煌,等.梯度曝气A~2O~2-MBR工艺强化同步硝化反硝化效能 [J]. 环境工程学报, 2024,18(4):1130-1143.Liu G, Wang L, Wen Z H, et al. Enhanced simultaneous nitrification and denitrification by gradient aeration A~2O~2-MBR process [J]. Chinese Journal of Environmental Engineering, 2024,18(4):1130-1143.
[14] Guo X, Zhang C, Liu J. Optimal hydraulic shear strength and mechanism of activated sludge floc re-growth after breakage [J]. Colloids and Surfaces B: Biointerfaces, 2019,176:202-11.
[15] Li Y, Wang Y, Dong F, et al. Controlling carbon dioxide-to-hydrogen ratio to improve hydrogen utilization and denitrification rates of hydrogenotrophic autotrophic denitrification through homoacetogenesis-heterotrophic denitrification pathway [J]. Bioresource Technology, 2024,393:130116.
[16] Liu H, Dong W, Zhao Z, et al. Advanced nitrogen removal from low carbon nitrogen ratio domestic sewage via continuous plug-flow anaerobic/oxic/anoxic system: Enhanced by endogenous denitrification [J]. Bioresource Technology, 2023,378:128987.
[17] 安泽铭,丁静,高歆婕,等.AOA系统厌氧时间和溶解氧对内源反硝化脱氮速率的影响 [J]. 中国环境科学, 2023,43(2):667-674.An Z M, Ding J, Gao X J, et al. Effects of anaerobic duration and dissolved oxygen on endogenous denitrification rate in AOA system [J]. China Environmental Science, 2023,43(2):667-674.
[18] Dan Y, Wang X, Ji M, et al. Influence of temperature change on the immobilization of soil Pb and Zn by hydrochar: Roles of soil microbial modulation [J]. Environmental Pollution, 2023,320:121109.
[19] Li M, Qin Z, Duan M, et al. Effects of micro-nano bubble water addition on maturation degree and microbial community during aerobic composting [J]. Chemosphere, 2024,353:141657.
[20] Zhuo Y, Huang X, Ma S, et al. Thermo-alkaline pretreatment of excess sludge: Effects of temperature on volatile fatty acids accumulation and microbial community [J]. Journal of Environmental Management, 2023,342:118244.
[21] Li W, Zheng T, Feng K, et al. Bacterial distinctions in practical rural sewage collection systems caused by the location, season, and system type [J]. Environmental Research, 2023,237:117024.
[22] ZHU H, LI W, CHEN X, et al. Effects of sponge iron dosage on nitrogen removal performance and microbial community structure in sequencing batch reactors [J]. Bioresource Technology, 2023,368: 128307.
[23] Wang J, Deng Y, Chen W, et al. Revealing the role of algae in algae enhanced bacteria consortia for municipal wastewater treatment: Performance, characteristics, and microbial pathways [J]. Journal of Water Process Engineering, 2023,53:103640.
[24] Xu B, Cho Q A C, Ng T C A, et al. Enriched autoinducer-2 (AI-2)-based quorum quenching consortium in a ceramic anaerobic membrane bioreactor (AnMBR) for biofouling retardation [J]. Water Research, 2022,214:118203.
[25] 陈 希,袁乙卜,张建民,等.大分子有机物对除磷颗粒污泥特性及菌群结构的影响 [J]. 环境科学学报, 2021,41(4):1309-1322.Chen X, Yuan Y B, Zhang J M, et al. Effects of macromolecular organic matters on the characteristics and bacterial community structure of the phosphorus removal granular sludge [J]. Acta Scientiae Circumstantiae, 2021,41(4):1309-1322.
[26] Fan Z, Zeng W, Meng Q, et al. Achieving enhanced biological phosphorus removal utilizing waste activated sludge as sole carbon source and simultaneous sludge reduction in sequencing batch reactor [J]. Science of The Total Environment, 2021,799:149291.
[27] Zuo R, Ren D, Deng Y, et al. Employing low dissolved oxygen strategy to simultaneously improve nutrient removal, mitigate membrane fouling, and reduce energy consumption in an AAO-MBR system: Fine bubble or coarse bubble? [J]. Journal of Water Process Engineering, 2024,57:104602.
[28] Fernandes H, Kiuchi S, Kakuda T, et al. Synergistic effects of nanobubbles and chemicals on backwashing for submerged MBRs treating municipal wastewater [J]. Journal of Water Process Engineering, 2024,63:105541.
[29] Wang C, Ng T C A, Ding M, et al. Insights on fouling development and characteristics during different fouling stages between a novel vibrating MBR and an air-sparging MBR for domestic wastewater treatment [J]. Water Research, 2022,212:118098.
[30] Gao T, Xiao K, Zhang J, et al. Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activated sludge process to the membrane bioreactor process [J]. Frontiers of Environmental Science & Engineering, 2021,16(4):113-125.
[31] Hao X D, Li J, Van Loosdrecht M C M, et al. A sustainability-based evaluation of membrane bioreactors over conventional activated sludge processes [J]. Journal of Environmental Chemical Engineering, 2018,6(2):2597-2605.
[32] Krzeminski P, Leverette L, Malamis S, et al. Membrane bioreactors-A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects [J]. Journal of Membrane Science, 2017,527:207-227. |
|
|
|
