九龙江流域水环境容量变化及污染物总量控制措施研究.doc

九龙江流域水环境容量变化及污染物总量控制措施研究 摘 要：以水环境容量为理论基础的污染物总量控制是当今水污染控制的发展趋势。随着社会经济的发展，我国水污染问题日益严重，急需要科学有效的开展水污染总量控制工作．因此，研究流域的水环境容量和污染物总量控制，具有重要的理论与实际应用价值。本研究先通过单指标评价和模糊评价法，对水质进行评价确定了九龙江流域的主要水质超标因子，建立水质模型，运用模拟计算了九龙江干流段丰、平、枯三个水期的环境容量，最后提出了九龙江流域的水污染总量控制相关措施建议。主要研究结论如下：通过污染源调查和水质评价，确定九龙江流域的主要水质超标污染物为生化需氧量、氨氮、总磷和大肠菌群，选择这4个水质因子作为水质模拟的指标；对丰、平、枯水期模型的BOD氧化速率、氨氮硝化速率、有机磷水解速率和病原体衰减速率等参数进行校正，验证模型具有较好的模拟精度，适合九龙江干流的水质模拟和预测。最后针对九龙江流域的实际情况，提出保证总量控制目标有效实旌的经济、技术手段和监督管理措施。 关键词：水环境容量；九龙江；水质评价；水环境容量 Abstract： Water environmental capacity as the theoretical basis of the total pollutant control is the development trend in todays water pollution control. As social and economic development, Chinas growing water pollution problem, an urgent need to carry out scientific and effective total pollution control work. Therefore, the study basin water environmental capacity and total pollutant control, has important theoretical and practical value. In this study, the first single index evaluation and fuzzy evaluation method, evaluation of water quality to determine the Jiulong River exceeded the water quality of the main factors, the establishment of water quality models, using simulation of the Jiulong River section of abundance, flat, dry period of three water environment capacity, and finally made ??a total Jiulong River water pollution control related measures. Main findings are as follows: water quality through pollution investigation and evaluation, to determine the Jiulong River exceeded the water quality of major pollutants biochemical oxygen demand, ammonia nitrogen, total phosphorus, and coliform bacteria, selection of the four water quality factors as indicators of water quality modeling; of Feng, flat, dry season model of BOD oxidation rate, nitrification rate of ammonia nitrogen, organic phosphorus hydrolysis rate and decay rate of pathogens such as calibration parameters, validate the simulation model has good accuracy, Jiulong River for water quality modeling and prediction. Finally, the actual si