进水C/N对表面流—水平流人工湿地氮和

去除效果的影响张燕; 刘雪兰; 伏春燕; 李新华; 阎百兴; 阎佩佩; 石天虹; 魏祥法

doi:10.13870/j.cnki.stbcxb.2018.06.042

您当前的位置：

首页 >

文章列表页 >

进水C/N对表面流—水平流人工湿地氮和

更新时间：2025-03-12

- 进水C/N对表面流—水平流人工湿地氮和
- Effect of C/N Ratio on Nitrogen and COD Removal in Combining Surface Flow and Horizontal Flow Constructed Wetlands
- 水土保持学报 2018年32卷第6期页码：294-301
- 作者机构：
  
  1. 山东省农业科学院家禽研究所,济南,250023
  2. 山东省农业可持续发展研究所,济南,250100
  3. 中国科学院东北地理与农业生态研究所, 湿地生态与环境重点实验室,长春,130102
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（41501520）山东省农业科学院创新工程项目（CXGC2016A08）山东省科技发展计划项目（2014GGH210001）山东省现代农业产业技术体系家禽创新团队建设项目（SDAIT-11-06）
- DOI：10.13870/j.cnki.stbcxb.2018.06.042
  中图分类号： X703
- 纸质出版：2018
- 稿件说明：
移动端阅览
去除效果的影响张燕, 刘雪兰, 伏春燕, 等. 进水C/N对表面流—水平流人工湿地氮和[J]. 水土保持学报, 2018,32(6):294-301.

ZHANG Yan, LIU Xuelan, FU Chunyan, et al. Effect of C/N Ratio on Nitrogen and COD Removal in Combining Surface Flow and Horizontal Flow Constructed Wetlands[J]. 2018, 32(6): 294-301.
去除效果的影响张燕, 刘雪兰, 伏春燕, 等. 进水C/N对表面流—水平流人工湿地氮和[J]. 水土保持学报, 2018,32(6):294-301. DOI： 10.13870/j.cnki.stbcxb.2018.06.042.

ZHANG Yan, LIU Xuelan, FU Chunyan, et al. Effect of C/N Ratio on Nitrogen and COD Removal in Combining Surface Flow and Horizontal Flow Constructed Wetlands[J]. 2018, 32(6): 294-301. DOI： 10.13870/j.cnki.stbcxb.2018.06.042.

摘要

通过模拟试验，研究在进水氮浓度不同条件下C/N对种植美人蕉的表面流—水平流人工湿地氮元素和COD去除能力的影响，并初步探讨其作用机理。结果表明：在营养生长期和开花期，低C/N有利于人工湿地系统中总氮和铵态氮的去除，C/N越高，硝态氮去除越彻底，而低C/N条件下，表面流—水平流人工湿地内的硝化作用限制了硝态氮的去除效果；对比2个生长期，各处理组总氮和硝态氮的去除能力相当，而开花期各处理组人工湿地铵态氮的去除能力高于营养生长期。C/N对人工湿地系统COD的去除效果的影响较少，2个生长期COD的去除效果相当，各处理组人工湿地系统COD的去除率约高于90%。随着停留时间的增加，人工湿地氮元素和COD的去除率均增加。对pH而言，湿地系统出水pH总体上先升高后趋于平稳，而氧化还原电位则先降低后升高最后趋于平稳，随C/N增加，出水pH降低，而氧化还原电位升高；营养生长期出水pH高于开花期，而氧化还原电位则呈相反表现。进水C/N和人工湿地系统共同影响着出水pH和氧化还原电位。

Abstract

The effect of C/N ratio on nitrogen and COD removal in combining surface flow and horizontal flow constructed wetlands under different influent nitrogen concentrations

as well as the preliminary influence mechanism was investigated in this simulation experiment. The results showed that

during the vegetative period and the flowering period

low C/N ratios were in favor of total nitrogen and ammonium-nitrogen removal in the wetlands

and nitrate-nitrogen removal was more complete with C/N ratio increasing

while nitrification in the wetlands limited nitrate-nitrogen removal under low C/N ratio. Comparing the two growth periods

the removal capacity of total nitrogen as well as nitrate-nitrogen was similar under different C/N ratios

whereas ammonium-nitrogen removal was higher during the vegetative period than during the flowering period. However

no obvious influence on COD removal by C/N ratio was found in all the treatments at the same growth period

and COD removal was also similar during the two growth periods

and their efficiencies in all the treatments were greater than 90%. With the increase of retention time

the removal efficiencies of both nitrogen and COD increased. The effluent pH value generally rose firstly and then kept a stable trend in all the treatments

while oxidation-reduction potential dropped firstly

rose secondly and then maintained a stable trend. The pH value decreased with C/N ratio increasing in the effluent

while oxidation-reduction potential increased. Besides

pH value was higher during the vegetative period than during the flowering period in the effluent

while oxidation-reduction potential was lower during the vegetative period than during the flowering period. Influent C/N ratio and the wetland system jointly affected the effluent pH and oxidation-reduction potential.

关键词

Keywords

references

Vymazal J. Horizontal sub-surface flow and hybrid constructed wetlands wastewater treatment[J].Ecological Engineering,2005,25(7):478-490.

Vymazal J. Removal of nutrients in various types of constructed wetlands[J].Science of the Total Environment,2007,380(1/3):48-65.

Reddy K R. Fate of nitrogen and Phosphorus in a wastewater retention reservoir containing aquatic macrophytes[J].Journal of Environmental Quality,1983,12(1):137-141.

Kadlec R H, Knight R L. Treatment wetlands[M].New York:CRC Press,1996.

余少鹏,王海霞,万忠娟,等.人工湿地污水处理技术及其在我国的发展的现状和前景[J].地理科学进展,2004,23(l):22-29.

吕涛,吴树彪,柳明慧,等.潮汐流及水平潜流人工湿地污水处理效果比较研究[J].农业环境科学学报,2013,32(8):1618-1624.

Xia S Q, Li J Y, Wang R C. Nitrogen removal performance and microbial community structure dynamics response to carbon nitrogen ratio in a compact suspended carrier biofilm reactor[J].Ecological Engineering,2008,32(3):256-262.

Dhiriti R, Komi H, Raj B. Effect of carbon to nitrogen (C/N) ratio on nitrogen removal from shrimp production waste water using sequencing batch reactor[J].Journal of Industrial Microbiology and Biotechnology,2010,37(10):1105-1110.

Fan J L, Wang W G, Zhang B,et al. Nitrogen removal in intermittently aerated vertical flow constructed wetlands:Impact of influent COD/N ratios[J].Bioresource Technology,2013,143:461-466.

Zhu H, Yan B X, Xu Y Y, et al. Removal of nitrogen and COD in horizontal subsurface flow constructed wetlands under different influent C/N ratios[J].Ecological Engineering,2014,63:58-63.

吴建强.潜流、垂直流人工湿地污染物净化效果及耐污染负荷冲击能力研究[J].环境污染与防治,2010,32(7):39-43.

张燕,庞南柱,蹇兴超,等.3种人工湿地基质吸附污水中氨氮的性能与基质筛选研究[J].湿地科学,2012,10(1):87-91.

Wu J, Zhang J, Jia W L, et al. Impact of COD/N ratio on nitrous oxide emission from microcosm wetlands and their performance in removing nitrogen from wastewater[J].Bioresource Technology,2009,100(12):2910-2917.

Yalcuk A, Ugurlu A. Comparison of horizontal and vertical constructed wetland systems for landfill leachate treatment[J].Bioresource Technology,2009,100(9):2521-2526.

Xu J, Zhang J, Xie H, et al. Physiological responses of

Phragmites australis

to wastewater with different chemical oxygen demands[J].Ecological Engineering,2010,36(10):1341-1347.

Fu G, Yu T, Ning K, et al. Effects of nitrogen removal microbes and partial nitrification denitrification in the integrated vertical-flow constructed wetland[J].Ecological Engineering,2016,95:83-89.

Oopkaup K, Truu M, Nőlvak H, et al. Dynamics of bacterial community abundance and structure in horizontal subsurface flow wetland mesocosms treating municipal wastewater[J].Water,2016,8:457.

Van Oostrom A J, Russell J M. Denitrification in constructed wastewater wetlands receiving high concentrations of nitrate[J].Water Science and Technology,1994,29(4):7-14.

丁怡.补充碳源提取液对水平潜流人工湿地脱氮效果的影响研究[D].上海:东华大学,2013.

Liu S Y, Yan B X, Wang L X. The layer effect in nutrient removal by two indigenous plant species in horizontal flow constructed wetlands[J].Ecological Engineering,2011,37:2101-2104.

Konnerup D, Brix H. Nitrogen nutrition of Canna indica:Effects of ammonium versus nitrate on growth, biomass allocation, photosynthesis, nitrate reductase activity and N uptake rates[J].Aquatic Botany,2010,92(2):142-148.

毛昕,王丽红,张光生.不同生育期美人蕉-微生物修复富营养化水体[J].环境工程学报,2013,12(7):4689-4696.

Ding Y, Song X S, Wang Y H, et al. Effects of dissolved oxygen and influent COD/N ratios on nitrogen removal in horizontal subsurface flow constructed wetland[J].Ecological Engineering,2012,46:107-111.

Zhi W, Ji G. Quantitative response relationships between nitrogen transformation rates and nitrogen functional genes in a tidal flow constructed wetland under C/N ratio constraints[J].Water Research,2014,64:32-41.

刘树元,阎百兴,王莉霞.人工湿地中氨氮反应与pH变化关系的研究[J].水土保持学报,2010,24(3):243-246.

浏览量

1394

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

不同培肥措施下复垦土壤氮素转化特征

Al2（SO4）3-稻草改良对苏打盐碱土氮转化机制的影响

铁氧化物影响土壤硝化作用动力学的作用机制

轮作水稻对大棚土壤硝化作用和氮挥发的影响

东鱼河春季沉积物反硝化脱氮作用与N