疏浚技术及其对污染水体治理效果的影响

刘丽香; 韩永伟; 刘辉; 孟晓杰; 高馨婷; 侯春飞; 熊向艳; 阿彦

doi:10.12153/j.issn.1674-991X.20190045

疏浚技术及其对污染水体治理效果的影响

doi: 10.12153/j.issn.1674-991X.20190045

1.
中国环境科学研究院
2.
内蒙古大学生态与环境学院

详细信息

作者简介:
刘丽香(1982—),女,博士,主要从事城市生态系统水污染研究, liulixiang1982@126.com

通讯作者:
韩永伟 E-mail: hanyw@craes.org.cn

中图分类号: X52
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- 被引次数: 0
出版历程
- 收稿日期: 2019-03-30
- 刊出日期: 2020-01-20

Dredging technology and its effect on the treatment of polluted water

1.
Chinese Research Academy of Environmental Sciences
2.
School of Ecology and Environment, Inner Mongolia University

More Information

Corresponding author: Yongwei HAN E-mail: hanyw@craes.org.cn

摘要

摘要: 疏浚技术是控制水体内源污染的有效措施之一。为深入了解疏浚技术应用及治理效果,通过文献研究,综合比较分析了疏浚技术的应用情况、治理效果及其对污染水体生态系统的影响,结果表明:环保疏浚效率高于抓斗式,其他疏浚技术治理效率的报道较少;疏浚技术应用广泛,但工程应用后,污染水体水质改善效果具有显著和不显著的两面性;疏浚效果分为长期、短期和瞬时效应,目前疏浚效果的瞬时效应比较常见;影响疏浚效果的因素有疏浚时机械扰动和疏浚深度,扰动造成底泥颗粒物悬浮和污染物释放,目前疏浚深度为0~90 cm,每项疏浚工程都有特定的去除营养元素效果最好的疏浚深度;疏浚对生物群落的影响分为短期和长期,短期影响生物多样性和生物量,长期影响表现在生物群落的重建。专业疏浚设备的研制、精准疏浚技术和疏浚对内源营养盐的影响等方面还有待进一步研究和深化。
- 清淤 /
- 污染水体 /
- 水质 /
- 营养元素 /
- 底泥 /
- 生物
Abstract: Sludge dredging is one of the effective ways to control internal pollution sources of polluted water. In order to deeply understand the application of dredging technology and the treatment effects on water pollution, the application of sludge dredging technology, its treatment effects and the effluences on the ecosystem of polluted water were summarized by literature review. It was found that the environmental sludge dredging efficiency was the higher than the grab sludge dredging efficiency, and there were few reports on the efficiency of other sludge dredging methods. Dredging technology was widely used, but after the application of the dredging engineering, the influence of sludge dredging on polluted water quality had both obvious and unapparent sides. The time effect characteristics of dredging effectwas described, The effect of sludge dredging in polluted water could be divided into long-term, short-term and instantaneous effects, and at present, the instantaneous effect of dredging effect was common. The factors that affected the dredging effect included mechanical disturbance and dredging depth. The disturbance caused obvious release of suspended pollutants in the sediment. At present, the dredging depth range was 0-90 cm. Each dredging project had a specific optimal dredging depth with the best effect of removing nutrients. The impact of dredging on biome could be divided into short-term and long-term, with short-term impacts being reflected in biodiversity and biomass, and long-term impacts in the reconstruction of biome. Finally, the future priority areas of sludge dredging research were proposed, including the development of specialized sludge dredging equipment, precise sludge dredging technology and the impact of sludge dredging on endogenous nutrients.
- dredging /
- polluted water /
- water quality /
- nutrient elements /
- sediment /
- organisms

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参考文献(82)

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