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An integrated simulation-based process control and operation planning system for marine oily wastewater management

机译:基于仿真的海洋含油污水管理过程控制和运行规划系统

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摘要

The chronic discharge of oily wastewater, mainly including bilge water, offshore produced water and ballast water, has been referred to as a major contributor to marine oil pollution. Although gravity-based treatment techniques have been widely used to separate oil from wastewater, many dissolved toxic organics, particularly Polycyclic Aromatic Hydrocarbons (PAHs), are not likely to be effectively removed and may cause severe environmental problems. Further treatment has therefore become necessary for the shipping and offshore oil and gas industries, particularly in the harsh environments (e.g., the Arctic Ocean) where ecosystems are extremely vulnerable. Among many chemical and biological treatment techniques, ultraviolet (UV) irradiation and advanced oxidation techniques have been recently regarded as promising solutions to the removal of PAHs. Such advanced treatment systems, as compared to the traditional ones, are usually lack of in-depth understanding of reaction mechanisms and kinetics, process control requirements, and long-term planning strategies. More particularly, the integration of process control and operation planning has been proven in the literature to greatly reduce process cost and improve system performance. However, such integration is usually complicated by many factors such as the multi-scale nature of decisions, the lack of knowledge of process dynamics and control, and uncertainty. These deficiencies can drastically hinder the widespread application of these advanced treatment systems in the shipping and offshore industries. In response to these knowledge and technique gaps, this research proposes an integrated process control and operation planning system to aid marine oily wastewater management based on experimental study, process modeling, process control, operation planning and their coupling.
机译:含油废水的长期排放,主要包括舱底水,近海采出水和压舱水,被认为是造成海洋石油污染的主要因素。尽管基于重力的处理技术已被广泛用于从废水中分离油,但是许多溶解的有毒有机物,尤其是多环芳烃(PAH),仍无法有效去除,并且可能导致严重的环境问题。因此,对于航运业和近海石油和天然气工业,特别是在生态系统极为脆弱的恶劣环境(例如北冰洋)中,有必要进行进一步处理。在许多化学和生物处理技术中,最近已将紫外线(UV)辐射和先进的氧化技术视为去除PAHs的有前途的解决方案。与传统系统相比,这种高级处理系统通常缺乏对反应机理和动力学,过程控制要求以及长期计划策略的深入了解。更具体地说,过程控制和操作计划的集成已在文献中得到证明,可以大大降低过程成本并提高系统性能。但是,这种集成通常由于许多因素而变得复杂,例如决策的多尺度性质,缺乏过程动力学和控制知识以及不确定性。这些缺陷会严重阻碍这些先进处理系统在航运和海上工业中的广泛应用。针对这些知识和技术空白,本研究基于实验研究,过程建模,过程控制,操作计划及其耦合,提出了一个集成的过程控制和操作计划系统,以辅助海洋含油废水管理。

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    Jing Liang;

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  • 年度 2014
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