Page 128 - 《环境工程技术学报》2022年第5期
P. 128

Vol.12,No.5                        环 境 工 程 技 术 学 报                                  第 12 卷,第 5 期
            Sep.,2022                     Journal of Environmental Engineering Technology          2022 年 9 月

            冉阳,付峥嵘,马满英,等.改良填料折流式生物滞留系统对雨水中氮磷削减的效                 果  [J].环境工程技术学报,2022,12(5):1484-1491.
            RAN Y,FU Z R,MA M Y,et al.Effect of amended filler fold-flow bioretention system on nitrogen and phosphorus reduction in rainwater[J].Journal of
            Environmental Engineering Technology,2022,12(5):1484-1491.

            改良填料折流式生物滞留系统对雨水中氮磷削减的效果


                                                                1
                                                                       1
                                             1
                                         冉阳 ,付峥嵘 ,马满英 ,王冶 ,叶青勇                  2
                                                      1*
                                                 1.湖南工业大学土木工程学院
                                            2.湖南智谋规划工程设计咨询有限责任公司
            摘要 针对生物滞留池对雨水中氮、磷去除效果不稳定,甚至出现负去除现象,开展改良生物滞留系统的研究。通过构建直流
            式和折流   式  2  种生物滞留系统,分别填充传统填料和羟基铝蛭石污泥颗粒(HAVSP)改良填料,搭建传统填料直流式生物滞留柱
                                        #
                                                                  #
              #
            (1 )、改良填料直流式生物滞留柱(2 )、改良填料折流式生物滞留柱(3 ) 个模拟试验柱;比较                         了  3  个模拟试验柱对雨水中氮、
                                                                    3
            磷的去除效果,并探讨       了  HAVS 对生物滞留填料的改良作用。结果表明:HAVS 改良填料折流式生物滞留系统对氮、磷的削
                                    P
                                                                          P
            减效果比传统填料和改良填料直流式生物滞留系统更加明显,且                     在  350 m m  淹没出流高度时对氮、磷削减效果最佳,总氮和硝态
            氮去除率最高可      达  76 %  和  77%。
            关键词 生物滞留系统;改良填料;直流式;折流式;脱氮;除磷
            中图分类号:X52,TU992    文章编号:1674-991X(2022)05-1484-08  doi:10.12153/j.issn.1674-991X.20210290
                            Effect of amended filler fold-flow bioretention system on

                                nitrogen and phosphorus reduction in rainwater
                                                                              1
                                      1
                                                                  1
                                                    1*
                             RAN Yang ,  FU Zhengrong ,  MA Manying ,  WANG Ye ,  YE Qingyong 2
                                      1.School of Civil Engineering, Hunan University of Technology
                                    2.Hunan Zhimou Planing Engineering Design Consultation Co., Ltd.
            Abstract The study on the amended bioretention systems was conducted in view of the instability and even the
            negative removal of N, P in rainwater by the bioretention tanks. By constructing two systems of straight-flow and
            fold-flow bioretention, traditional fillers and hydroxy-aluminium vermiculite sludge particle (HAVSP) were filled
                                                                            #
            respectively. Three simulation test device columns were set up, of which 1  was a traditional filling straight-flow
                                                                                     #
                               #
            bioretention column, 2  was a modified filling straight-flow bioretention column, and 3  was a modified filling fold-
            flow  bioretention  column.  The  removal  effect  of  nitrogen  and  phosphorus  in  rainwater  under  three  simulated
            experimental devices was compared, and the improvement effect of HAVSP on bioretention filler was discussed.
            The  results  showed  that  the  reduction  effect  of  nitrogen  and  phosphorus  in  HAVSP  amended  filler  fold-flow
            bioretention system was more obvious than that in conventional filler and amended filler straight-flow bioretention
            system, and had the best effect on nitrogen and phosphorus reduction when the outflow height was 350 mm, with
            total nitrogen and nitrate-nitrogen removal rates up to 76% and 77%, respectively.
            Key words bioretention system; amended filler; straight-flow; fold-flow; nitrogen removal; phosphorus removal

                海绵城市的出现为城市的排水模式提供了新思                           道路雨水径流中往往含有各种金属离子、高浓度的
            想,而生物滞留池是海绵城市建设中一项重要的措                             有机污染物和悬浮颗粒物,而未经处理的含高浓度
            施,生物滞留池的建设不仅可以逐步完善城市排水                             氮、磷污染物的道路雨水排入湖泊、河流等水体中
            系统的基础设施,减少地表径流量,降低洪涝灾害发                            容易引起水体富营养化,进而导致水生生态系统破
            生的几率,而且下渗储蓄的水可以补充地下水,调节                            坏。因此,研究生物滞留设施以降低城市道路雨水
            城市小气候,预防城市“热岛效应”的发生                   [1-3] 。城市    径流污染物具有重要意义           [4-6] 。


            收稿日期:2021-07-05
            基金项目:株洲市科技计划基金资助项目(2020-022,2019-022)
            作者简介:冉   阳  (1997—),男,硕士研究生,研究方向为海绵城市生物滞留技术,2499533280@qq.com
            * 责任作者:付峥  嵘  (1974—),男,副教授,博士,研究方向为绿色建筑、海绵城市生物滞留技术,441680332@qq.com
   123   124   125   126   127   128   129   130   131   132   133