普兰店湾海洋环境容量分析与研究
发布时间：2018-07-26 19:23
【摘要】：大连金普新区位于大连中心城区北部,是国务院最新批准的国家级新型经济区。金普新区的设立、建设和发展对于引领辽宁沿海经济带海洋经济发展,振兴东北老工业区,进一步深化东北亚区域合作有着深远的意义。金普新区规划围绕普兰店湾建设。全面了解普兰店湾海域现状、正确评估普兰店湾海域环境质量,准确把握普兰店湾海洋环境容量,合理控制污染物输入总量和优化污染物输入分布,不仅对于普兰店湾海域的污染物总量控制、环境管理、环境保护和改善具有重要的理论意义和实用价值,而且对于金普新区的城市规划、产业布局和经济发展具有重大的基础作用,对于金普新区的建设和发展具有非常积极的意义。本文以普兰店湾海域为研究对象,以普兰店湾潮流和水质的实际调查资料为依据,通数值模拟方法,在分析和研究普兰店湾海域动力学特征和水体交换能力的基础上建立海域水质预测模型,分析和研究普兰店湾对可持续性污染物(COD、磷酸盐、无机氮)的承载能力和环境容量,优化污染物输入分布,提出污染物(无机氮)削减方案。本文研究的内容和结果如下:1.利用MIKE 21以2012年4月实测数据构建二维水动力数值模型,通过普兰店湾内设定的四个潮位验证点与五个潮流验证点对普兰店湾水动力模型进行验证。经验证,该数值模型具有较高的可信性,可满足普兰店湾污染物扩散模型的需要。计算结果表明,小潮期间水动力强度明显低于大潮期间水动力强度,普兰店湾内较于其他同等规模海湾,流速明显偏小。2.建立污染物对流-扩散模型,利用浓度示踪剂法,将普兰店湾分为三个区域,并分别求出各个区域水体半交换周期。经对比分析,普兰店湾湾口的水体交换能力强于湾底的水体交换能力,而对整体普兰店湾而言,其水体交换能力偏弱。潮流作用越强劲,其半交换周期越短。水交换能力及污染物扩散能力的大小很大程度上决定了排污口位置的选取,并据此提出了三种普兰店湾污染物排放口的布置方案。3.建立普兰店湾海洋环境容量污染物排放优化数值模型,以最大允许排放量为目标函数,将普兰店湾海洋环境容量的污染物排放模型简化为线性规划问题。在各个污染物排放口赋以1t/d的源强,并计算出污染物控制点在一个潮周期内(25h)控制因子的浓度增量,从而得出各个控制因子平均污染物贡献度系数,利用Matlab计算得出三个规划排污口联合排放时各个排污口污染物最大允许排放量。经比较得出各个控制因子在三种污染物排放口布设的方案下的最优方案。普兰店湾COD最大允许入海负荷为31.43t/d,磷酸盐最大允许总入海负荷为3.24t/d,无机氮总削减量为951.90t。将计算结果作为输入条件,模拟该排放量下污染物浓度场分布,所得各个污染物控制点浓度值均符合相应的海水水质要求,从而对目标海域COD的最大允许排放量的合理性进行验证。4.依据污染物排放总量控制的基本原则,需考虑到普兰店湾近岸区域相应不可控制因素及日后普兰店湾经济发展预留相应的污染物排放量指标,可将污染物建议排放量按照污染物最大允许排放量的70%确定,从而得出普兰店湾COD建议允许总入海负荷为22.00t/d,磷酸盐建议允许总入海负荷为2.27t/d。
[Abstract]:Dalian Jin Pu new area is located in the northern part of the central city of Dalian. It is the latest state level new economic zone approved by the State Council. The establishment and development of the new area of Jin Pu has far-reaching significance for leading the economic development of the coastal economic zone of Liaoning, revitalizing the northeast old industrial area and further deepening the regional cooperation in Northeast Asia. Pulandian bay construction. Comprehensive understanding of the status of the Pulandian Bay Sea area, the correct assessment of the environmental quality of the Pulandian Bay, the accurate grasp of the capacity of the marine environment in the Gulf of Pulandian, the reasonable control of the total amount of pollutant input and the optimization of the input distribution of pollutants, not only the total amount control, environmental management, environmental protection and improvement of the pollutants in the sea area of the Pulandian Bay. It has important theoretical significance and practical value, and has a great basic role in the urban planning, industrial layout and economic development in the new area of Jin Pu. It has very positive significance for the construction and development of the new area of Jin Pu. This paper takes the sea area of Pulandian Bay as the research object, and takes the actual survey data of the tidal current and the water quality of the Pulandian Bay as the basis for the study. According to the numerical simulation method, based on the analysis and study of the dynamic characteristics of the Pulandian Bay and the water exchange capacity, the water quality prediction model is established, and the carrying capacity and environmental capacity of the sustainable pollutants (COD, phosphate, inorganic nitrogen) in Pulandian Bay are analyzed and studied, and the pollutant input distribution is optimized, and the pollutants (inorganic) are proposed. The contents and results of this paper are as follows: 1. using the MIKE 21 to construct a two-dimensional hydrodynamic numerical model with the measured data in April 2012, through the four tidal verification points set in the Pulandian Bay and five tidal current verification points to verify the hydrodynamic model of the Pulandian Bay. The numerical model is proved to have high credibility. It can meet the needs of the pollutant diffusion model in the Pulandian Bay. The calculation results show that the hydrodynamic strength of the tide is obviously lower than the hydrodynamic strength during the tide period. In the Pulandian Bay, the flow velocity of the flow is obviously smaller than that of the other bays, and the flow velocity is obviously smaller than.2., and the concentration tracer method is used to divide the Pulandian bay into three regions. The water exchange capacity of Pulandian bay mouth is stronger than the water exchange capacity at the bottom of the Bay, but the water exchange capacity of the whole Pulandian Bay is weak. The stronger the power flow, the shorter the half exchange cycle. The capacity of water exchange and the ability of pollutant diffusion is very large. To the extent, the selection of the location of the discharge port is determined. According to this, three layout schemes of the Pulandian Bay discharge port are put forward. The optimization numerical model of the pollutant discharge of the marine environmental capacity of the Pulandian Bay is set up by.3.. The maximum allowable discharge is taken as the objective function, and the pollutant discharge model of the marine environment capacity in the Pulandian Bay is simplified as a linear model. Planning problem. In each pollutant discharge port, the source of 1t/d is strong, and the concentration increment of control factor in a tidal cycle (25h) control factor is calculated. Thus the average pollutant contribution coefficient of each control factor is obtained. The maximum allowance of each pollutant discharge outlet is obtained by using Matlab calculation. The optimal scheme of each control factor under the scheme of three kinds of pollutant discharge is compared. The maximum allowable loading capacity of COD in Pulandian Bay is 31.43t/d, the maximum allowable total sea load of phosphate is 3.24t/d, and the total reduction of inorganic nitrogen is 951.90t. will be used as the input condition to simulate the pollution under the discharge. The distribution of the concentration field and the concentration value of the control points of each pollutant are in line with the corresponding water quality requirements. Thus the rationality of the maximum allowable emission of the COD in the target sea area is verified by the basic principle that.4. is controlled according to the total amount of pollutant discharge. It is necessary to take into account the corresponding incontrollable factors in the near shore area of Pulandian Bay and the future Pulandian. The economic development of the Bay reserves the corresponding pollutant emission index, which can be determined by 70% of the maximum allowable discharge of the pollutant. Thus, the Pulandian Bay COD is suggested to allow the total sea entry load to be 22.00t/d, and the phosphate recommended to allow the total sea load of 2.27t/d. to be 2.27t/d.
【学位授予单位】：大连海洋大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X55;X26
本文编号：2147046
[Abstract]:Dalian Jin Pu new area is located in the northern part of the central city of Dalian. It is the latest state level new economic zone approved by the State Council. The establishment and development of the new area of Jin Pu has far-reaching significance for leading the economic development of the coastal economic zone of Liaoning, revitalizing the northeast old industrial area and further deepening the regional cooperation in Northeast Asia. Pulandian bay construction. Comprehensive understanding of the status of the Pulandian Bay Sea area, the correct assessment of the environmental quality of the Pulandian Bay, the accurate grasp of the capacity of the marine environment in the Gulf of Pulandian, the reasonable control of the total amount of pollutant input and the optimization of the input distribution of pollutants, not only the total amount control, environmental management, environmental protection and improvement of the pollutants in the sea area of the Pulandian Bay. It has important theoretical significance and practical value, and has a great basic role in the urban planning, industrial layout and economic development in the new area of Jin Pu. It has very positive significance for the construction and development of the new area of Jin Pu. This paper takes the sea area of Pulandian Bay as the research object, and takes the actual survey data of the tidal current and the water quality of the Pulandian Bay as the basis for the study. According to the numerical simulation method, based on the analysis and study of the dynamic characteristics of the Pulandian Bay and the water exchange capacity, the water quality prediction model is established, and the carrying capacity and environmental capacity of the sustainable pollutants (COD, phosphate, inorganic nitrogen) in Pulandian Bay are analyzed and studied, and the pollutant input distribution is optimized, and the pollutants (inorganic) are proposed. The contents and results of this paper are as follows: 1. using the MIKE 21 to construct a two-dimensional hydrodynamic numerical model with the measured data in April 2012, through the four tidal verification points set in the Pulandian Bay and five tidal current verification points to verify the hydrodynamic model of the Pulandian Bay. The numerical model is proved to have high credibility. It can meet the needs of the pollutant diffusion model in the Pulandian Bay. The calculation results show that the hydrodynamic strength of the tide is obviously lower than the hydrodynamic strength during the tide period. In the Pulandian Bay, the flow velocity of the flow is obviously smaller than that of the other bays, and the flow velocity is obviously smaller than.2., and the concentration tracer method is used to divide the Pulandian bay into three regions. The water exchange capacity of Pulandian bay mouth is stronger than the water exchange capacity at the bottom of the Bay, but the water exchange capacity of the whole Pulandian Bay is weak. The stronger the power flow, the shorter the half exchange cycle. The capacity of water exchange and the ability of pollutant diffusion is very large. To the extent, the selection of the location of the discharge port is determined. According to this, three layout schemes of the Pulandian Bay discharge port are put forward. The optimization numerical model of the pollutant discharge of the marine environmental capacity of the Pulandian Bay is set up by.3.. The maximum allowable discharge is taken as the objective function, and the pollutant discharge model of the marine environment capacity in the Pulandian Bay is simplified as a linear model. Planning problem. In each pollutant discharge port, the source of 1t/d is strong, and the concentration increment of control factor in a tidal cycle (25h) control factor is calculated. Thus the average pollutant contribution coefficient of each control factor is obtained. The maximum allowance of each pollutant discharge outlet is obtained by using Matlab calculation. The optimal scheme of each control factor under the scheme of three kinds of pollutant discharge is compared. The maximum allowable loading capacity of COD in Pulandian Bay is 31.43t/d, the maximum allowable total sea load of phosphate is 3.24t/d, and the total reduction of inorganic nitrogen is 951.90t. will be used as the input condition to simulate the pollution under the discharge. The distribution of the concentration field and the concentration value of the control points of each pollutant are in line with the corresponding water quality requirements. Thus the rationality of the maximum allowable emission of the COD in the target sea area is verified by the basic principle that.4. is controlled according to the total amount of pollutant discharge. It is necessary to take into account the corresponding incontrollable factors in the near shore area of Pulandian Bay and the future Pulandian. The economic development of the Bay reserves the corresponding pollutant emission index, which can be determined by 70% of the maximum allowable discharge of the pollutant. Thus, the Pulandian Bay COD is suggested to allow the total sea entry load to be 22.00t/d, and the phosphate recommended to allow the total sea load of 2.27t/d. to be 2.27t/d.
【学位授予单位】：大连海洋大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X55;X26
【参考文献】
相关期刊论文 前10条
1 潘中毅;支大林;韩建雨;;辽宁沿海经济带一体化发展对策研究[J];东北师大学报(哲学社会科学版);2008年06期
2 郭森;韩保新;杨静;范辉;;纳污海域水环境容量计算与总量分配方法研究——以钦州湾为例[J];环境科学与技术;2006年S1期
3 谢飞;逄勇;宋志尧;;海州湾海域三维潮流数值模拟[J];河海大学学报(自然科学版);2007年06期
4 曾刚;厦门港海水交换的初步计算[J];海洋通报;1984年05期
5 龚艳君;吴建政;张学超;;威海湾入海污染物环境容量研究[J];海洋地质动态;2010年04期
6 赵亮,魏皓,赵建中;胶州湾水交换的数值研究[J];海洋与湖沼;2002年01期
7 周发毅，郭勇，虞和莹;大规模多岛屿海域潮流场的数值模拟[J];海洋工程;1995年04期
8 张存智,韩康,张砚峰,窦振兴,夏进;大连湾污染排放总量控制研究──海湾纳污能力计算模型[J];海洋环境科学;1998年03期
9 胡建宇;罗源湾海水与外海水的交换研究[J];海洋环境科学;1998年03期
10 王君陛;张珞平;;海湾环境质量评价以及环境容量研究中“本底浓度”确定的探讨[J];海洋环境科学;2009年05期
相关硕士学位论文 前1条
1 郭良波;渤海环境动力学数值模拟及环境容量研究[D];中国海洋大学;2005年
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