普蘭店灣海洋環(huán)境容量分析與研究
發(fā)布時(shí)間：2018-07-26 19:23
【摘要】：大連金普新區(qū)位于大連中心城區(qū)北部,是國務(wù)院最新批準(zhǔn)的國家級新型經(jīng)濟(jì)區(qū)。金普新區(qū)的設(shè)立、建設(shè)和發(fā)展對于引領(lǐng)遼寧沿海經(jīng)濟(jì)帶海洋經(jīng)濟(jì)發(fā)展,振興東北老工業(yè)區(qū),進(jìn)一步深化東北亞區(qū)域合作有著深遠(yuǎn)的意義。金普新區(qū)規(guī)劃圍繞普蘭店灣建設(shè)。全面了解普蘭店灣海域現(xiàn)狀、正確評估普蘭店灣海域環(huán)境質(zhì)量,準(zhǔn)確把握普蘭店灣海洋環(huán)境容量,合理控制污染物輸入總量和優(yōu)化污染物輸入分布,不僅對于普蘭店灣海域的污染物總量控制、環(huán)境管理、環(huán)境保護(hù)和改善具有重要的理論意義和實(shí)用價(jià)值,而且對于金普新區(qū)的城市規(guī)劃、產(chǎn)業(yè)布局和經(jīng)濟(jì)發(fā)展具有重大的基礎(chǔ)作用,對于金普新區(qū)的建設(shè)和發(fā)展具有非常積極的意義。本文以普蘭店灣海域?yàn)檠芯繉ο?以普蘭店灣潮流和水質(zhì)的實(shí)際調(diào)查資料為依據(jù),通數(shù)值模擬方法,在分析和研究普蘭店灣海域動(dòng)力學(xué)特征和水體交換能力的基礎(chǔ)上建立海域水質(zhì)預(yù)測模型,分析和研究普蘭店灣對可持續(xù)性污染物(COD、磷酸鹽、無機(jī)氮)的承載能力和環(huán)境容量,優(yōu)化污染物輸入分布,提出污染物(無機(jī)氮)削減方案。本文研究的內(nèi)容和結(jié)果如下:1.利用MIKE 21以2012年4月實(shí)測數(shù)據(jù)構(gòu)建二維水動(dòng)力數(shù)值模型,通過普蘭店灣內(nèi)設(shè)定的四個(gè)潮位驗(yàn)證點(diǎn)與五個(gè)潮流驗(yàn)證點(diǎn)對普蘭店灣水動(dòng)力模型進(jìn)行驗(yàn)證。經(jīng)驗(yàn)證,該數(shù)值模型具有較高的可信性,可滿足普蘭店灣污染物擴(kuò)散模型的需要。計(jì)算結(jié)果表明,小潮期間水動(dòng)力強(qiáng)度明顯低于大潮期間水動(dòng)力強(qiáng)度,普蘭店灣內(nèi)較于其他同等規(guī)模海灣,流速明顯偏小。2.建立污染物對流-擴(kuò)散模型,利用濃度示蹤劑法,將普蘭店灣分為三個(gè)區(qū)域,并分別求出各個(gè)區(qū)域水體半交換周期。經(jīng)對比分析,普蘭店灣灣口的水體交換能力強(qiáng)于灣底的水體交換能力,而對整體普蘭店灣而言,其水體交換能力偏弱。潮流作用越強(qiáng)勁,其半交換周期越短。水交換能力及污染物擴(kuò)散能力的大小很大程度上決定了排污口位置的選取,并據(jù)此提出了三種普蘭店灣污染物排放口的布置方案。3.建立普蘭店灣海洋環(huán)境容量污染物排放優(yōu)化數(shù)值模型,以最大允許排放量為目標(biāo)函數(shù),將普蘭店灣海洋環(huán)境容量的污染物排放模型簡化為線性規(guī)劃問題。在各個(gè)污染物排放口賦以1t/d的源強(qiáng),并計(jì)算出污染物控制點(diǎn)在一個(gè)潮周期內(nèi)(25h)控制因子的濃度增量,從而得出各個(gè)控制因子平均污染物貢獻(xiàn)度系數(shù),利用Matlab計(jì)算得出三個(gè)規(guī)劃排污口聯(lián)合排放時(shí)各個(gè)排污口污染物最大允許排放量。經(jīng)比較得出各個(gè)控制因子在三種污染物排放口布設(shè)的方案下的最優(yōu)方案。普蘭店灣COD最大允許入海負(fù)荷為31.43t/d,磷酸鹽最大允許總?cè)牒Ｘ?fù)荷為3.24t/d,無機(jī)氮總削減量為951.90t。將計(jì)算結(jié)果作為輸入條件,模擬該排放量下污染物濃度場分布,所得各個(gè)污染物控制點(diǎn)濃度值均符合相應(yīng)的海水水質(zhì)要求,從而對目標(biāo)海域COD的最大允許排放量的合理性進(jìn)行驗(yàn)證。4.依據(jù)污染物排放總量控制的基本原則,需考慮到普蘭店灣近岸區(qū)域相應(yīng)不可控制因素及日后普蘭店灣經(jīng)濟(jì)發(fā)展預(yù)留相應(yīng)的污染物排放量指標(biāo),可將污染物建議排放量按照污染物最大允許排放量的70%確定,從而得出普蘭店灣COD建議允許總?cè)牒Ｘ?fù)荷為22.00t/d,磷酸鹽建議允許總?cè)牒Ｘ?fù)荷為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.
【學(xué)位授予單位】：大連海洋大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X55;X26
本文編號(hào)：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.
【學(xué)位授予單位】：大連海洋大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X55;X26
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