生态浮床的去污效果与机理研究

罗固源; 卜发平; 许晓毅; 曹佳; 舒为群

您当前的位置：

首页 >

文章列表页 >

生态浮床的去污效果与机理研究

化学工程 | 更新时间：2023-11-28

- 生态浮床的去污效果与机理研究
- Study on Removal Effect and Mechanism in Ecological Floating-Beds
- 工程科学与技术 2009年41卷第6期页码：108-113
- 作者机构：
  
  1. 重庆大学三峡库区生态环境教育部重点实验室
  2. 第三军医大学军事预防医学院
- 作者简介：
- 基金信息：
  
  科技部国际合作项目(2007DFA90660);重庆市科技攻关计划项目(CSTC,2006AB7020);重庆市重大科技攻关项目(CSTC,2006AA7003);重庆市自然科学基金项目(CSTC,2008BB7305)
- DOI：
  中图分类号：
- 纸质出版日期：2009，
  
  网络出版日期：2009-4-3，
扫描看全文
罗固源,卜发平,许晓毅,曹佳,舒为群.生态浮床的去污效果与机理研究[J].工程科学与技术,2009,41(6):108-113.

LUO Gu-Yuan, BU Fa-Ping, XU Xiao-Yi, et al. Study on Removal Effect and Mechanism in Ecological Floating-Beds[J]. Advanced Engineering Sciences, 2009,41(6):108-113.
罗固源,卜发平,许晓毅,曹佳,舒为群.生态浮床的去污效果与机理研究[J].工程科学与技术,2009,41(6):108-113. DOI：

LUO Gu-Yuan, BU Fa-Ping, XU Xiao-Yi, et al. Study on Removal Effect and Mechanism in Ecological Floating-Beds[J]. Advanced Engineering Sciences, 2009,41(6):108-113. DOI：

摘要

中文摘要: 在对有植物的浮床(美人蕉床和菖蒲床)和无植物的对照床进行对比试验的基础上，通过示踪试验及物料衡算的方法研究了浮床系统的净化机理。结果表明，美人蕉床和菖蒲床对总氮(TN)、总磷(TP)及化学需氧量 (CODCr)的平均去除率分别为 29.5%、28.7%、23.7%和31.8%、27.9%、24.4%，平均去除负荷分别为1.141、0.111、0.684 g·m-2·d-1 和1.244、0.108、0.689 g·m-2·d-1，均极显著高于对照床(p＜0.01)；且浮床的去污效果与植物的生长情况成显著的正相关关系(r＞0.786

p＜0.05)。通过底泥沉积去除氮磷是浮床系统最主要的去污途径，植物吸收对污染物去除的贡献只占10%左右。研究表明，植物有助于浮床系统内形成良好的溶解氧(DO)浓度梯度分布、使系统的水流流态更接近于反应器的理想推流流态以及通过根系的过滤沉积作用去污等，所以植物是浮床发挥净化作用的关键。

Abstract

Abstract:Based on comparative tests of removal effect between Ecological Floating-Beds (EFBs) planted with Canna indica and Acorus calamus and the unplanted bed

the mechanism of EFBs was investigated through the tracer study and mass balance calculation. Results of the study showed that

the average removal efficiencies of TN

TP and CODCr of EFBs planted with Canna indica and Acorus calamus were 29.5%

28.7%

23.7% and 31.8%

27.9%

24.4%

the average removal loadings were 1.141

0.111

0.684 g·m-2·d-1 and 1.244

0.108

0.689 g·m-2·d-1

respectively

apparently higher than those of the unplanted bed.The removal effect exhibited positive relationships with the plants growth with the correlation coefficient higher than 0.786(p＜0.05) in both units.The sedimentation of nitrogen and phosphorus was the dominating pathway for pollutants removal in EFBs

while plants uptake contributed to only about 10% of total pollutants removed. The study indicated that plants help to keep the flow pattern of EFBs more close to plug flow pattern

good DO concentration gradient distribution and decontamination by filtration of roots

testifying that plants played a critical role in pollutants removal in EFBs.

关键词

生态浮床去污效果DO浓度梯度流态净化机理

Keywords

Ecological Floating-Beds (EFBs)removal effectDO concentration gradientflow patternpurification mechanism

references

Maltais-Landry Gabriel;Maranger Roxane;Brisson Jacques,Nitrogen transformations and retention in planted and artificially aerated constructed wetlands,Water Research,2009.

U. Welander ；B. Mattiasson,Denitrification at low temperatures using a suspended carrier biofilm process,Water Research ,2003, 37(10).

Choi E. ；Yun Z. ；Lee E. ；Rhu D.,Temperature effects on biological nutrient removal system with weak municipal wastewater,Water Science and Technology ,1998, 37(9).

戚以政;汪叔雄,生物反应动力学与反应器,北京:化学工业出版社,2007.

许保玖;龙腾锐,当代给水与废水处理原理,北京:高等教育出版社,2000.

罗固源,肖华,韩金奎.人工浮床处理重污染河水的效能分析[J].重庆大学学报(自然科学版),2008(8)

鲍士旦,土壤农化分析,北京:中国农业出版社,2000.

国家环境保护总局编委会,水和废水监测分析方法,北京:中国环境科学出版社,2002.

Sun Lianpeng;Liu Yang;Jin Hui,Nitrogen removal from polluted river by enhanced floating bed grown canna,Ecological Engineering,2008.

Li Miao;Wu Yuejin;Yu Zengliang,Nitrogen removal from eutrophic water by floating-bed grown water spinach (Ipomoea aquatica Forsk.) with ion implantation,Water Research,2007.

黄廷林,宋李桐,钟建红.人工浮床净化城市景观水体的试验研究[J].西安建筑科技大学学报(自然科学版),2007(1)

袁东海;景丽洁;张孟群.几种人工湿地基质净化磷素的机理[J].中国环境科学,2004(5)

Zhou Sheng;Hosomi Masaaki,Nitrogen transformations and balance in a constructed wetland for nutrient-polluted river water treatment using forage rice in Japan,Ecological Engineering,2008(2).

Chung A K C;Wu Y;Tam N F Y,Nitrogen and phosphate mass balance in a sub-surface flow constructed wetland for treating municipal wastewater,Ecological Engineering,2008(1).

李先宁,宋海亮,吕锡武.水耕植物过滤法去除氮磷的影响因素及途径[J].环境科学,2007(5)

宋海亮,吕锡武,李先宁.水生植物滤床处理太湖入湖河水的工艺性能[J].东南大学学报(自然科学版),2004(6)

浏览量

222

下载量

CNKI被引量

文章被引用时，请邮件提醒。

提交

工具集

关联资源

一种新型旋流排沙渠道的试验研究和数值模拟