Remediation of polluted sediment assisted by tidal energy

潮汐能辅助污染沉积物修复

基本信息

  • 批准号:
    EP/D079055/1
  • 负责人:
  • 金额:
    $ 26.1万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2006
  • 资助国家:
    英国
  • 起止时间:
    2006 至 无数据
  • 项目状态:
    已结题

项目摘要

Many estuaries and river sediments in the UK and worldwide are impacted by organic pollutants at levels which are harmful to the ecosystem. For instance, the Tyne Estuary in the North of England is heavily polluted with petroleum hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs), and recent studies demonstrated ecotoxicological effects in fish, e.g. flounder and eels. The EU water framework directive lists PAHs as priority substances in the field of water policy because of their carcinogenic potency.Natural processes such as the microbial break-down and the strong adsorption of pollutants like PAHs to certain sediment constituents (e.g. carbonaceous particles) can reduce the ecotoxicity of polluted sediment significantly. However, the limited availability of nutrients and oxygen, the formation of ecotoxic products from microbial break-down, a limited number of strong sorption sites in natural sediment, and slow mass transfer of pollutants from weak sorbents to microorganisms or strong sorbents may impede a natural recovery. It is thus proposed to devise a low-cost engineering system in which natural processes leading to a sediment recovery can be enhanced in a controlled setting.Tidal energy will be exploited to agitate the sediment and replenish it with nutrients and oxygen. This will accelerate the microbial break-down of the degradable portion of the pollution. The labile, but non-degradable portion of the pollution and eventual break-down products will be removed from the sediment by infiltrating the effluent from the system across a bed with an adsorbent. The residual pollution in the sediment will be sequestered by adding a dose of a strong, preferably natural sorbent (e.g. coal) to the sediment at the end of the treatment. Presumably this will result in a substantially reduced sediment ecotoxicity and longterm stabilization of the residual pollution.By exploiting tidal energy and natural processes the costs for this treatment can be kept low. The scheme could be implemented in situ to avoid the removal of sediment or ex situ, possibly within existing structures such as abandoned dry docks, to treat sediment from routine dredging operations. The in situ emplacement or ocean disposal of treated, stabilized sediment would implicate less risks than disposal of the untreated sediment, or the treated, stabilized sediment may become an acceptable material for use on shore, e.g. as a filling material.
在英国和世界范围内,许多河口和河流沉积物受到有机污染物的影响,其水平对生态系统有害。例如,英格兰北部的泰恩河口受到石油碳氢化合物的严重污染,包括多环芳烃(PAHs),最近的研究证明了对鱼类的生态毒理学影响,例如比目鱼和鳗鱼。由于多环芳烃的致癌性,欧盟水框架指令将其列为水政策领域的优先物质。微生物分解和多环芳烃等污染物对某些沉积物成分(如碳质颗粒)的强吸附等自然过程可以显著降低污染沉积物的生态毒性。然而,营养物质和氧气的有限可用性,微生物分解形成的生态毒性产物,天然沉积物中强吸附位点的数量有限,以及污染物从弱吸附剂向微生物或强吸附剂的缓慢质量转移可能阻碍自然恢复。因此,建议设计一种低成本的工程系统,在这种系统中,导致沉积物回收的自然过程可以在受控环境中得到加强。潮汐能将被用来搅动沉积物,并为其补充营养和氧气。这将加速微生物对污染中可降解部分的分解。不稳定的、但不可降解的污染部分和最终的分解产物将通过带吸附剂的床从系统的流出物中渗透,从沉积物中去除。沉淀物中的残留污染将通过在处理结束时向沉淀物中添加一剂强效、最好是天然的吸附剂(例如煤)来隔离。据推测,这将大大降低沉积物的生态毒性,并长期稳定残留污染。通过利用潮汐能和自然过程,这种处理的成本可以保持在较低水平。该计划可在原地实施,以避免移走沉积物或移至原地,可能在现有结构(如废弃的干船坞)内处理常规疏浚作业产生的沉积物。就地安置或海洋处置处理过的稳定沉积物比处置未经处理的沉积物风险更小,或者处理过的稳定沉积物可能成为岸上使用的可接受材料,例如作为填筑材料。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Characterising a possible natural cap material at a hydrocarbon polluted site in the river Tyne, England
描述英格兰泰恩河碳氢化合物污染地点可能的天然盖材料的特征
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    D Werner
  • 通讯作者:
    D Werner
Effect of activated carbon amendment on bacterial community structure and functions in a PAH impacted urban soil.
  • DOI:
    10.1021/es2043905
  • 发表时间:
    2012-05-01
  • 期刊:
  • 影响因子:
    11.4
  • 作者:
    Meynet, Paola;Hale, Sarah E.;Davenport, Russell J.;Cornelissen, Gerard;Breedveld, Gijs D.;Werner, David
  • 通讯作者:
    Werner, David
Can quantification of dioxygenase genes monitor polycyclic aromatic hydrocarbon degradation?
双加氧酶基因的定量可以监测多环芳烃的降解吗?
  • DOI:
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    0
  • 作者:
    P Meynet
  • 通讯作者:
    P Meynet
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David Werner其他文献

Electrodynamics of the Superconducting State in Ultra-Thin Films at THz Frequencies
太赫兹频率超薄膜超导态的电动力学
  • DOI:
    10.1109/tthz.2013.2255047
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    3.2
  • 作者:
    U. Pracht;E. Heintze;C. Clauss;D. Hafner;R. Bek;David Werner;Sergey Gelhorn;M. Scheffler;M. Dressel;D. Sherman;B. Gorshunov;K. Il'in;D. Henrich;M. Siegel
  • 通讯作者:
    M. Siegel
Continuum modelling of structure formation of biosilica patterns in diatoms
硅藻中生物硅模式结构形成的连续体模型
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M. Bobeth;A. Dianat;R. Gutierrez;David Werner;Hongliu Yang;Hagen Eckert;G. Cuniberti
  • 通讯作者:
    G. Cuniberti
Clearspeech: A Display Reader for the Visually Handicapped
Clearspeech:专为视障人士设计的显示阅读器
Wesleyan Missional Small Groups: Three Crucial Attributes
卫斯理宣教小组:三个关键属性
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    David Werner
  • 通讯作者:
    David Werner
Lower limb squat biomechanics and select clinical measures in chronic ankle instability.
下肢深蹲生物力学并选择慢性踝关节不稳定的临床措施。
  • DOI:
    10.1016/j.clinbiomech.2024.106211
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    1.8
  • 作者:
    David Werner;Lauren Casey;Ethan Myers;Joaquin A. Barrios
  • 通讯作者:
    Joaquin A. Barrios

David Werner的其他文献

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{{ truncateString('David Werner', 18)}}的其他基金

A framework for sustainable aquaculture within peri-urban green infrastructures protecting the Gulf of Thailand from eutrophication
保护泰国湾免受富营养化的城郊绿色基础设施内的可持续水产养殖框架
  • 批准号:
    BB/T012471/1
  • 财政年份:
    2020
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant
NEWTON SEA: Valorisation of agricultural wastes in the Thai rural economy for bioenergy production, nutrient recycling and water pollution control
NEWTON SEA:泰国农村经济中农业废物的增值,用于生物能源生产、养分回收和水污染控制
  • 批准号:
    BB/P027709/1
  • 财政年份:
    2017
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant
IMAGINE: INNOVATIVE TECHNOLOGIES FOR RAPIDLY SURVEYING, MAPPING AND COMMUNICATING WATERBORNE HAZARDS
想象一下:快速测量、绘图和传达水源危害的创新技术
  • 批准号:
    EP/P028527/1
  • 财政年份:
    2017
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant
Connecting the UK Industrial Doctorate Centre for the Water Sector (STREAM) with the US Urban Water Engineering Research Center (ReNUWIt)
连接英国水领域工业博士中心 (STREAM) 与美国城市水工程研究中心 (ReNUWIt)
  • 批准号:
    EP/K021737/1
  • 财政年份:
    2013
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant
Linking the fundamental concepts of sediment pollution remediation and ecotoxicity for improved engineering designs
将沉积物污染修复和生态毒性的基本概念联系起来,以改进工程设计
  • 批准号:
    EP/F012934/1
  • 财政年份:
    2007
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant
Imaging microorganisms and pollutants at the microscale
微生物和污染物的微观成像
  • 批准号:
    NE/D00683X/1
  • 财政年份:
    2006
  • 资助金额:
    $ 26.1万
  • 项目类别:
    Research Grant

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