高级搜索

曝气深度对河道底泥特性及水质的影响

,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

王美丽, 刘春, 何连生, 白雪梅, 袁震, 孟睿, 白璐. 曝气深度对河道底泥特性及水质的影响[J]. 环境工程学报, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
引用本文: 王美丽, 刘春, 何连生, 白雪梅, 袁震, 孟睿, 白璐. 曝气深度对河道底泥特性及水质的影响[J]. 环境工程学报, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
shu
Wang Meili, Liu Chun, He Liansheng, Bai Xuemei, Yuan Zhen, Meng Rui, Bai Lu. Effect of different aeration depth on river sediment characteristics and water quality[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
Citation: Wang Meili, Liu Chun, He Liansheng, Bai Xuemei, Yuan Zhen, Meng Rui, Bai Lu. Effect of different aeration depth on river sediment characteristics and water quality[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
shu

曝气深度对河道底泥特性及水质的影响

  • 1.

    中国环境科学研究院, 北京 100012

  • 2.

    河北科技大学环境科学与工程学院, 石家庄 050018

  • 基金项目:

    国家科技支撑计划项目(2012BAJ21B08)

  • 中图分类号: X703

Effect of different aeration depth on river sediment characteristics and water quality

  • 1.

    Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • 2.

    School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China

  • Fund Project:

  • 摘要: 采用室内模拟实验方法对受污河道底泥和上覆水进行研究,对比分析静置状态X0和不同曝气深度条件下(分别为水体曝气泥水界面上方10 cm,底泥曝气下方5和15 cm处,依次记为X+10、X-5和X-15)河道底泥特性及水质的影响情况。结果表明:底泥曝气较水体曝气而言,能促进水体DO更快恢复;停止曝气,DO浓度也会维持在较高的状态,有利于有机物和氨氮的进一步去除。在相同曝气量下,底泥曝气比水体曝气能更好地去除底泥中污染物,并减少再次释放,且底泥曝气深度越深,处理效果越好,至实验结束时,X-15组上覆水中COD、NH4+-N、TN及TP浓度分别为16.25、3.03、13.39及0.09 mg/L,去除率分别为69.73%、78.36%、45.98%及84.21%;停止曝气后,经曝气处理的底泥对磷的吸附容量显著增加,并且不会再向上覆水中释放污染物,避免引起水体的二次污染。
    Abstract: Indoor simulation tests were used to study aeration treatments for polluted river sediments and overlying water. The river sediment characteristics and water quality were evaluated under static state conditions (X0) and at different aeration depth, where the heights relative to the water-sediment interface in the aeration treatments were set to 10 cm (X+10), -5 cm (X-5), and -15 cm (X-15). The results showed that sediment aeration can achieve greater restoration levels of dissolved oxygen (DO) in water bodies and maintain higher DO levels after stopping aeration than techniques that rely solely on water aeration, which will be beneficial for the further removal of organic matter and ammonia nitrogen. Sediment aeration may also suppress the release of pollutants from the sediments to the overlying water. In this study, greater sediment aeration depth were associated with better treatment efficiencies. At the end of the tests, the chemical oxygen demand (COD) (where refers to the dichromate method), NH4+-N, total nitrogen (TN), and total phosphorous (TP) concentrations of the X-15 group were 16.25, 3.03, 13.39 and 0.09 mg/L, and the corresponding removal rates were 69.73%, 78.36%, 45.98%, and 84.21%, respectively. After stopping aeration, the accumulative adsorption capacity for phosphorus in sediment subjected to aeration treatments increased significantly, and pollutant release was restrained effectively. Therefore, these water bodies were protected from the effects of secondary pollution.
  • 加载中
  • [1] 刘波, 王国祥, 王风贺, 等. 不同曝气方式对城市重污染河道水体氮素迁移与转化的影响. 环境科学, 2011, 32(10): 2971-2978 Liu Bo, Wang Guoxiang, Wang Fenghe, et al. Effect of different aeration ways on migration and transformation of nitrogen in heavily polluted urban river. Environmental Science, 2011, 32(10): 2971-2978(in Chinese)
    [2] Kim M., Jeong S. Y., Yoon S. J., et al. Aerobic denitrification of Pseudomonas putida AD-21 at different C/N ratios. Journal of Bioscience and Bioengineering, 2008, 106(5): 498-502
    [3] 孙从军,张明旭.河道曝气技术在河流污染治理中的应用.工程与技术, 2001(4): 12-15 Sun C.J.,Zhang M.X..Application of Aeration Technique in River Pollution Control. Engineering and Technology, 2001(4): 12-15(in chinese)
    [4] Wang Shengrui, Jin Xiangcan, Bu Qinyun, et al. Effects of dissolved oxygen supply level on phosphorus release from lake sediments. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2008, 316(1-3): 245-252
    [5] Jin Xiangcan, Wang Shengrui, Pang Yan, et al. Phosphorus fractions and the effect of pH on the phosphorus release of the sediments from different trophic areas in Taihu Lake, China. Environmental Pollution, 2006, 139(2): 288-295
    [6] Eggleton J., Thomas K. V. A review of factors affecting the release and bioavailability of contaminants during sediment disturbance events. Environment International, 2004, 30(7): 973-980
    [7] 余光伟, 雷恒毅, 刘广立, 等. 重污染感潮河道底泥释放特征及其控制技术研究. 环境科学学报, 2007, 27(9): 1476-1484 Yu Guangwei, Lei Hengyi, Liu Guangli, et al. Research on the characteristics of sediment release in a heavily polluted tidal river and control technologies. Acta Scientiae Circumstantiae, 2007, 27(9): 1476-1484(in Chinese)
    [8] 史云峰, 赵牧秋, 张丽莉. 双氰胺(DCD)在砖红壤中硝化抑制效果的影响因素研究. 安徽农业科学, 2011, 39(33): 20437-20440 Shi Yunfeng, Zhao Muqiu, Zhang Lili. Research on the factors affecting nitrification inhibition of dicyandiamide (DCD) in latosol. Journal of Auhui Agricultural Sciences, 2011, 39(33): 20437-20440(in Chinese)
    [9] 国家环境保护总局. 水和废水监测分析方法(第4版). 北京: 中国环境科学出版社, 2002
    [10] 金相灿, 屠清瑛. 湖泊富营养化调查规范(第2版). 北京: 中国环境科学出版社, 1990
    [11] 古小治, 王强, 张雷, 等. 物理改良对湖泊沉积物和间隙水特征的影响. 中国环境科学, 2010, 30(2): 256-262 Gu Xiaozhi, Wang Qiang, Zhang Lei, et al. Influence of physical amelioration on the characteristic of sediments and pore waters in lake Nansi wetland. China Environmental Science, 2010, 30(2): 256-262(in Chinese)
    [12] Maksymowska-Brossard D., Piekarek-Jankowska H. Seasonal variability of benthic ammonium release in the surface sediments of the Gulf of Gdańsk (southern Baltic Sea). Oceanologia, 2001, 43(1): 113-136
    [13] Liu Shu, Wang Qunhui, Ma Hongzhi, et al. Effect of micro-bubbles on coagulation flotation process of dyeing wastewater. Separation and Purification Technology, 2010, 71(3): 337-346
    [14] Peng Jianfeng, Wang Baozhen, Song Yonghui, et al. Adsorption and release of phosphorus in the surface sediment of a wastewater stabilization pond. Ecological Engineering, 2007, 31(2): 92-97
    [15] Liu Jing, Xia Wenshui. Purification and characterization of a bifunctional enzyme with chitosanase and cellulase activity from commercial cellulase. Biochemical Engineering Journal, 2006, 30(1): 82-87
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2411
  • HTML全文浏览数:  1882
  • PDF下载数:  907
  • 施引文献:  0
出版历程
  • 收稿日期:  2015-03-23
  • 刊出日期:  2016-06-03
王美丽, 刘春, 何连生, 白雪梅, 袁震, 孟睿, 白璐. 曝气深度对河道底泥特性及水质的影响[J]. 环境工程学报, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
引用本文: 王美丽, 刘春, 何连生, 白雪梅, 袁震, 孟睿, 白璐. 曝气深度对河道底泥特性及水质的影响[J]. 环境工程学报, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
shu
Wang Meili, Liu Chun, He Liansheng, Bai Xuemei, Yuan Zhen, Meng Rui, Bai Lu. Effect of different aeration depth on river sediment characteristics and water quality[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
Citation: Wang Meili, Liu Chun, He Liansheng, Bai Xuemei, Yuan Zhen, Meng Rui, Bai Lu. Effect of different aeration depth on river sediment characteristics and water quality[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2909-2914. doi: 10.12030/j.cjee.201501034
shu

曝气深度对河道底泥特性及水质的影响

  • 1.  中国环境科学研究院, 北京 100012
  • 2.  河北科技大学环境科学与工程学院, 石家庄 050018
  • 收稿日期:  2015-03-23
基金项目:

国家科技支撑计划项目(2012BAJ21B08)

摘要: 采用室内模拟实验方法对受污河道底泥和上覆水进行研究,对比分析静置状态X0和不同曝气深度条件下(分别为水体曝气泥水界面上方10 cm,底泥曝气下方5和15 cm处,依次记为X+10、X-5和X-15)河道底泥特性及水质的影响情况。结果表明:底泥曝气较水体曝气而言,能促进水体DO更快恢复;停止曝气,DO浓度也会维持在较高的状态,有利于有机物和氨氮的进一步去除。在相同曝气量下,底泥曝气比水体曝气能更好地去除底泥中污染物,并减少再次释放,且底泥曝气深度越深,处理效果越好,至实验结束时,X-15组上覆水中COD、NH4+-N、TN及TP浓度分别为16.25、3.03、13.39及0.09 mg/L,去除率分别为69.73%、78.36%、45.98%及84.21%;停止曝气后,经曝气处理的底泥对磷的吸附容量显著增加,并且不会再向上覆水中释放污染物,避免引起水体的二次污染。

English Abstract

    全文HTML

参考文献 (15)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心