进水氮素组成对表面流人工湿地脱氮及N<sub>2</sub>O排放的影响

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (818 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要为探究进水氮素组成对表面流人工湿地脱氮效果及N₂O排放的影响,构建了进水氮素组成分别为ρ(NH₄⁺-N)/ρ(NO₃^--N)=0:1(CW-A)、ρ(NH₄⁺-N)/ρ(NO₃^--N)=0.7:1(CW-B)、ρ(NH₄⁺-N)/ρ(NO₃^--N)=4:1(CW-C)以及实际微污染河水(CW-D)的4个小试试验系统,分析了水中氮素变化规律以及N₂O排放特征,提出了一种人工湿地水中氮素去除与N₂O排放协同效应评价方法.结果表明:高进水氨氮(NH₄⁺-N)比例的CW-C组总氮(TN)平均去除率(68.31±14.56)%显著优于其他处理组(P<0.05),实际微污染河水组(CW-D)随着处理时间延长也表现出较好的脱氮效果(41.06±17.55)%;高进水硝酸盐氮(NO₃^--N)比例CW-A组的NH₄⁺-N去除率(-110.12%)显著低于其他处理组,可能与植物吸收特性有关;NO₃^--N去除率随着NO₃^--N浓度增加而升高, CW-A组NO₃^--N去除率(87.60%)显著高于CW-C组(39.96%,P<0.05).所有处理的N₂O释放通量分别为(8.73±7.64), (36.68±6.43), (-0.02±7.43)和(15.08±10.77)μg/(m²·h),仅CW-C组为N₂O的吸收汇.综合考虑氮素和N₂O的削减量及削减速率,进水氮素组成为ρ(NH₄⁺-N)/ρ(NO₃^--N)=4:1的CW-C组的氮素去除与N₂O减排协同效应更强.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	孙玮
	李一平
	朱立琴
	张海阔
	严春敏
	商鹤琴
	宋从清
	李大胜
	王玲
	孙佳欣

关键词 ：氮素组成, 表面流人工湿地, 微污染水, 脱氮效果, N₂O排放

Abstract：To investigate the influence of influent nitrogen composition on nitrogen removal and N₂O emissions in free water surface constructed wetland with micro-polluted water, four systems were constructed with influent nitrogen compositions of ρ(NH₄⁺-N)/ρ(NO₃^--N)=0:1(CW-A), ρ(NH₄⁺-N)/ρ(NO₃^--N)=0.7:1(CW-B), ρ(NH₄⁺-N)/ρ(NO₃^--N)=4:1(CW-C), and Yanlong Lake surface flow constructed wetland average influent concentration (CW-D), respectively. The characteristics of nitrogen removal and N₂O emission were analyzed, and a method to evaluate the synergistic effect of nitrogen removal and N₂O emission in constructed wetlands was proposed. The results showed that:The average removal rate of total nitrogen (TN) in CW-C with high influent ammonia nitrogen (NH₄⁺-N) ratio was (68.31±14.56)%, which was significantly higher than that of other treatment treatments (P<0.05). Treatment CW-D with the average influent concentration of Yanlong Lake also showed a better nitrogen removal of (41.06±17.55)% with the extension of operation time. The NH₄⁺-N removal rate of treatment CW-A with high influent nitrate nitrogen (NO₃^--N) ratio (-110.12%) was significantly lower than that of other treatment treatments, which was possibly be related to plant absorption characteristics. The NO₃^--N removal rate increased with increasing NO₃^--N concentration. The NO₃^--N removal rate of CW-A with high influent NO₃^--N ratio (87.60%) was significantly higher than that of CW-C with low influent NO₃^--N ratio (39.96%, P<0.05). The N₂O release fluxes for all treatments were (8.73±7.64), (36.68±6.43), (-0.02±7.43) and (15.08±10.77) μg/(m²·h).Treatment CW-C had the lowest N₂O release flux, which was the N₂O absorption sink. Considering the amount and rate of reduction of nitrogen removal and N₂O emission, the synergistic effect of nitrogen removal and N₂O reduction is stronger for high influent NH₄⁺-N ratio ρ(NH₄⁺-N)/ρ(NO₃^--N)=4:1(CW-C).

Key words： nitrogen composition free water surface constructed wetland micro-polluted water nitrogen removal N₂O emission

收稿日期: 2022-12-26

PACS:

X524

基金资助:中央高校建设世界一流大学(学科)和特色发展引导专项资金资助项目(B22017010204)；国家自然科学基金资助项目(52039003,52279012, 52079038)

通讯作者: 李一平,教授,liyiping@hhu.edu.cn;朱立琴,副教授,lqzhu@hhu.edu.c E-mail: liyiping@hhu.edu.cn;lqzhu@hhu.edu.c

作者简介: 孙玮(1996-),女,河北唐山人,河海大学环境学院硕士研究生,主要从表面流人工湿地氮磷转化机理研究.发表论文1篇.sunwei4239@163.com

引用本文:

孙玮, 李一平, 朱立琴, 张海阔, 严春敏, 商鹤琴, 宋从清, 李大胜, 王玲, 孙佳欣. 进水氮素组成对表面流人工湿地脱氮及N₂O排放的影响[J]. 中国环境科学, 2023, 43(8): 4013-4023. SUN Wei, LI Yi-ping, ZHU Li-qin, ZHANG Hai-kuo, YAN Chun-min, SHANG He-qin, SONG Cong-qing, LI Da-sheng, WANG Ling, SUN Jia-xin. Effects of influent nitrogen composition on nitrogen removal and N₂O emissions in surface flow constructed wetland with micro-polluted water. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(8): 4013-4023.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2023/V43/I8/4013

[1]	Omidinia-anarkoli T, Shayannejad M. Improving the quality of stabilization pond effluents using hybrid constructed wetlands[J]. Science of the Total Environment, 2021,801:149615.
[2]	Wang T, Xiao L, Lu H, et al. Nitrogen removal from summer to winter in a field pilot-scale multistage constructed wetland-pond system[J]. Journal of Environmental Sciences, 2022,111:249-62.
[3]	Li Y, Zhang H, Zhu L, et al. Evaluation of the long-term performance in a large-scale integrated surface flow constructed wetland-pond system:A case study[J]. Bioresource Technology, 2020,309:123310.
[4]	王宇娜,国晓春,卢少勇,等.人工湿地对低污染水中氮去除的研究进展:效果、机制和影响因素[J].农业资源与环境学报, 2021, 38(5):722-734. Wang Y, Guo X, Lu S, et al. Review of nitrogen removal in low-polluted water by constructed wetlands:Performance, mechanism, and influencing[J]. Journal of Agricultural Resources and Environment, 2021,38(5):722-734.
[5]	张晓一.表面流人工湿地与复合型生态浮床对低污染水体氮磷的去除特性研究[D].上海:上海交通大学, 2019. Zhang X. Nitrogen and phosphorus removal by surface flow constructed wetland and enhanced floating treatment wetland from low-polluted water[D]. Shanghai:Shanghai Jiao Tong University, 2019.
[6]	Zhu L, Zhang H, Li Y, et al. Evaluation of the optimization effect of a combined constructed wetland with micro-polluted water sources[J]. Journal of Water Process Engineering, 2022,49.
[7]	Cai Z, Li Q, Bai H, et al. Interactive effects of aquatic nitrogen and plant biomass on nitrous oxide emission from constructed wetlands[J]. Environmental Research, 2022,213:113716.
[8]	Wang J, Zhu C, Weng B, et al. Regulation of heavy metals accumulated by Acorus calamus L. in constructed wetland through different nitrogen forms[J]. Chemosphere, 2021a,281:130773.
[9]	Wang J, Li W, Li Q, et al. Nitrogen fertilizer management affects remobilization of the immobilized cadmium in soil and its accumulation in crop tissues[J]. Environmental Science and Pollution Research International, 2021b,28(24):31640-31652.
[10]	Du Y, Niu S, Jiang H, et al. Comparing the effects of plant diversity on the nitrogen removal and stability in floating and sand-based constructed wetlands under ammonium/nitrate ratio disturbance[J]. Environmental Science and Pollution Research International, 2021, 28(48):69354-66.
[11]	Kadlec R, Wallace S. Treatment wetlands[M]. CRC Press, 2008.
[12]	Wang X, Luo B, Wang L, et al. Plant diversity improves the effluent quality and stability of floating constructed wetlands under increased ammonium/nitrate ratio in influent[J]. Journal of Environmental Management, 2020,266:110607.
[13]	Zheng Y, Yang D, Dzakpasu M, et al. Effects of plants competition on critical bacteria selection and pollutants dynamics in a long-term polyculture constructed wetland[J]. Bioresource Technology, 2020, 316:123927.
[14]	张晓一,陈盛,查丽娜,等.表面流人工湿地和复合型生态浮床处理污水厂尾水的脱氮性能分析[J].环境工程, 2019,(6):46-51. Zhang X, Chen S, Zha L, et al. Analysis on nitrogen removal performance in treatment of wastewater treatment plant effluent with surface flow constructed wetland and integrated ecological floating-bed[J]. Environmental Engineering, 2019,(6):46-51.
[15]	吴海露.人工湿地中植物根系分泌物及其对脱氮过程的影响[D].上海:上海交通大学, 2018. Wu H. Plant root exudates and their function on the nitrogen removal in constructed wetlands[D]. Shanghai:Shanghai Jiao Tong University, 2018.
[16]	牛少丹.氮水平对植物多样性与人工湿地污染物去除及净增温潜势关系的影响[D].浙江:浙江大学, 2021. Niu S. Effects of nitrogen level on the relationships between plant diversity and pollutant removal and net global warming potential in constructed wetlands[D]. Zhejiang:Zhejiang University, 2021.
[17]	滕逸飞,汪思宇,单国平,等.进水条件对不同类型人工湿地处理效果的对比分析[J].净水技术, 2020,39(9):105-113. Teng Y, Wang S, Shang G, et al. Comparative analysis of the effects of influent conditions on different types of constructed wetlands[J]. Water Purification Technology, 2020,39(9):105-113.
[18]	Cao Z, Zhou L, Gao Z, et al. Comprehensive benefits assessment of using recycled concrete aggregates as the substrate in constructed wetland polishing effluent from wastewater treatment plant[J]. Journal of Cleaner Production, 2021,288:125551.
[19]	Ni X, Huang X, Guo R, et al. Water-energy-carbon synergies and trade-offs:A daily nexus analysis for wastewater treatment plants[J]. Resources, Conservation and Recycling, 2023,188:106712.
[20]	Zhang L, Wang X, Dzakpasu M, et al. Integrated environmental influences quantification of pilot-scale constructed wetlands based on modified ecological footprint assessment[J]. Science of the Total Environment, 2022,843:157039.
[21]	Zhu L, Zhang H, Li Y, et al. Long-term variation characteristics of nutrients in the water and sediments of a surface flow constructed wetland with micro-polluted water sources[J]. Ecological Engineering, 2023,187:106848.
[22]	Li H, Liu F, Luo P, et al. Stimulation of optimized influent C:N ratios on nitrogen removal in surface flow constructed wetlands:Performance and microbial mechanisms[J]. Science of the Total Environment, 2019,694:133575.
[23]	国家环境保护总局.水和废水监测分析方法-第4版[M].中国环境科学出版社, 2002. State Environmental Protection. Administration analytical methods for water and wastewater monitoring-4th edition[M]. China Environment Press, 2002.
[24]	中日污染减排与协同效应研究示范项目联合研究组.污染减排的协同效应评价及案例研究[M].中国环境出版社, 2012. Assessment and case study of the co-benefits of air pollution control on GHG emissions reduction[M]. China Environment Press, 2012.
[25]	王凌青,王雪平,方华军,等.青藏高原典型区域资源环境与社会经济耦合分析[J].环境科学学报, 2021,41(6):2510-2518. Wang L, Wang X, Fang H, et al. Coupling relationship between resource environment and social economy development in typical regions of Qinghai-Tibet Plateau[J]. Acta Scientiae Circumstantiae, 2021,41(6):2510-2518.
[26]	刘茂辉,岳亚云,刘胜楠,等.基于STIRPAT模型天津减污降碳协同效应多维度分析[J].环境科学, 2023,44(3):1277-1286. Liu M, Yue Y, Liu S, et al. Multi-dimensional analysis of the synergistic effect of pollution reduction and carbon Reduction in Tianjin Based on the STIRPAT Model[J]. Environmental Science, 2023,44(3):1277-1286.
[27]	Liu M, Liu S, Li J, et al. Evaluation and prediction of the synergistic effect of pollution reduction and carbon reduction in Tianjin[J]. China Environmental Science, 2022,42(8):3940-3949.
[28]	Yang Z, Liu J, Xing Q. Evaluation of synergy between low-carbon development and socio-economic development based on a composite system:a case study of Anhui Province (China)[J]. Scientific Reports, 2022,12(1):20294.
[29]	Chen X, Zhu H, Yan B, et al. Optimal influent COD/N ratio for obtaining low GHG emissions and high pollutant removal efficiency in constructed wetlands[J]. Journal of Cleaner Production, 2020,267:122003.
[30]	李飞翔,岳琛,张超月,等.人工湿地去除水产养殖尾水中氮磷的影响因素识别[J].生态与农村环境学报, 2022,38:925-932. Li F, Yue C, Zhang C, et al. Identification of influencing factors of nitrogen and phosphorus removal from aquaculture wastewater by constructed wetlands[J]. Journal of Ecology and Rural Environment, 2022,38(7):925-932.
[31]	俞波,黄荣振,何圣兵.不同植物类型表面流湿地处理低污染河水的效能研究[C].环境工程全国学术年会论文集(下册), 2018. Yu B, Huang R, He S. Research on the efficiency in treating slightly polluted river water using various types of wetlands with different plants[C]. Environmental Engineering 2018 National Annual Conference Proceedings (Volume III), 2018.
[32]	Rewald B, Kunze M, Godbol D. NH4:NO3 nutrition influence on biomass productivity and root respiration of poplar and willow clones[J]. Global Change Bioenergy, 2016,8(1):51-58.
[33]	Cea-Barcia G, Buitrón G, Moreno G, et al. A cost-effective strategy for the bio-prospecting of mixed microalgae with high carbohydrate content:diversity fluctuations in different growth media[J]. Bioresource Technology, 2014,163:370-373.
[34]	Kataki S, Chatterjee S, Vairale M, et al. Constructed wetland, an eco-technology for wastewater treatment:A review on types of wastewater treated and components of the technology (macrophyte, biolfilm and substrate)[J]. Journal of Environmental Management, 2021,283:111986.
[35]	刘霄,唐婷芳子,黄岁樑,等.4种湿地植物的生长特性和污水净化效果研究[J].云南农业大学学报(自然科学), 2013,28(3):392-399. Liu X, Tang T, Huang S, et al. Growth characteristics and purification efficiency of four wetland plants[J]. Journal of Yunnan Agricultural University, 2013,28(3):392-399.
[36]	Fan C, He S, Wu S, et al. Improved denitrification in surface flow constructed wetland planted with calamus[J]. Journal of Cleaner Production, 2021,291:125944.
[37]	Gu X, Chen D, Wu F, et al. Function of aquatic plants on nitrogen removal and greenhouse gas emission in enhanced denitrification constructed wetlands:Iris pseudacorus for example[J]. Journal of Cleaner Production, 2022,330:129842.
[38]	Zhou S, Wang C, Liu C, et al. Nutrient removal, methane and nitrous oxide emissions in a hybrid constructed wetland treating anaerobic digestate[J]. Science of the Total Environment, 2020,733:138338.
[39]	Vymazal J. Removal of nutrients in various types of constructed wetlands[J]. Science of the Total Environment, 2007,380(1-3):48-65.
[40]	路俊玲,陈慧萍,肖琳.温度和氨氮浓度对水体N2O释放的影响[J].中国环境科学, 2019,39(1):330-335. Lu J, Chen H, Xiao L. Coupling effect of temperature and ammonia on N2O emission in surface water[J]. China Environmental Science, 2019,39(1):330-335.
[41]	Chen D, Gu X, Zhu W, et al. Electrons transfer determined greenhouse gas emissions in enhanced nitrogen-removal constructed wetlands with different carbon sources and carbon-to-nitrogen ratios[J]. Bioresource Technology, 2019,285:121313.
[42]	程呈.人工湿地系统中甲烷和氧化亚氮的同步消减及机制研究[D].济南:山东大学, 2019. Cheng C. Research on simultaneous reduction and mechanisms of methane and nitrous oxide[D]. Jinan:Shandong University, 2019.
[43]	王淼.河流氧化亚氮浓度、释放通量与排放系数的研究[D].沈阳:沈阳建筑大学, 2019. Wang M. Study on nitrous oxide concentration, release flux and emission coefficient of river[D]. Shenyang:Shenyang Jianzhu University, 2019.
[44]	Cheng C, Sun T, Li H, et al. New insights in correlating greenhouse gas emissions and microbial carbon and nitrogen transformations in wetland sediments based on genomic and functional analysis[J]. Journal of Environmental Management, 2021,297:113280.