污水海洋处置排污口选划研究:以晋江围头湾为例OA

Marine disposal of wastewater effectively utilizes the ocean's self-purification capacity,and improves marine environmental quality.The scientific placement of ocean outfalls serves as an important measure for enhancing marine ecological environment quality.This study comprehensively considered multiple factors including environmental impact,construction difficulty,and project economics focusing on Jinjiang's Weitou Bay.Employing a combined qualitative and quantitative approach,four preliminary ocean outfall schemes were initially proposed based on regional planning,natural environmental conditions,and existing marine development and utilization activities.Feasible solutions were identified through qualitative comparative screening.Subsequently,further numerical simulations of pollutant dispersion were conducted for the feasible schemes.The prediction results show that,in terms of both the exceedance range of inorganic nitrogen and the maximum concentration increment of pollutants,Outfall 1#is smaller than Outfall 2#.Moreover,the selected route of Outfall 1#requires less rock blasting than Outfall 2#,making its construction less challenging.Therefore,Outfall 1#is recommended as the preferred scheme for Weitou Bay.After project implementation,the originally dispersed sewage will be collected,centrally treated,and discharged into the deep-sea area at the mouth of Weitou Bay,which will make full use of the marine environmental capacity and improve the marine environmental quality of Weitou Bay.The results provide scientific guidance for regional marine environmental management.