辽河河口区湿地水体中石油类污染物净化能力优化与仿真

发布时间：2018-07-15 18:06

【摘要】：采用现场调查与系统模拟的方法,以辽河油田曙光地区湿地为研究对象,全面分析了研究区湿地水体石油污染程度及净化能力现状,提出了基于Monte Carlo模拟的湿地对石油类污染物净化效率估算模型,并根据研究区的自然特征,利用水量及氮磷营养等因子调控,对湿地不同区块的净化能力进行优化设计.结果表明:研究区各区块对石油类污染物的净化能力存在差异,主要是由于区块间湿地结构与内在特征不同所致.湿地自然条件下石油类污染物的净化效率为5.4%,平均残留浓度为1.05 mg·L~(-1),通过优化设计,湿地对石油类污染物净化效率达到约20%.本文建立的湿地净化能力优化设计与仿真调控方法,为辽河口湿地水体中石油类污染物的去除提供了重要的技术手段.
[Abstract]:By using the method of field investigation and systematic simulation, taking the wetland in Shuguang area of Liaohe Oilfield as the research object, the present situation of oil pollution and purification ability of wetland water body in the study area is comprehensively analyzed. Based on Monte Carlo simulation, a model for estimating the purification efficiency of petroleum pollutants in wetlands is proposed. According to the natural characteristics of the study area, the purification capacity of different areas of the wetland is optimized and designed by using the factors of water quantity and nitrogen and phosphorus nutrition and so on. The results show that there are differences in the purification capacity of petroleum pollutants among the blocks, mainly due to the different structure and inherent characteristics of wetlands between blocks. The purification efficiency of petroleum pollutants in wetland is 5.4mg / L ~ (-1) and the average residual concentration is 1.05 mg / L ~ (-1). Through the optimization design, the purification efficiency of petroleum pollutants is about 20%. The optimization design and simulation control method of wetland purification capacity established in this paper provide an important technical means for removing petroleum pollutants in the wetland water body of Liaohe estuary.
【作者单位】：中国科学院沈阳应用生态研究所;中国科学院大学;污染土壤生物-物化协同修复技术国家地方联合工程实验室;
【基金】：国家水体污染控制与治理科技重大专项(2013ZX07202-007)资助~~
【分类号】：X52;X741

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