【作者】 罗正媛；

【导师】 孙兴滨； 赵志伟；

【作者基本信息】 东北林业大学 ， 环境科学， 2008， 硕士

【摘要】 对饮用水处理工艺进行了优选,建立了饮用水处理工艺优选的模式。对2006年滦河水源高藻期的水质进行了分析,结果表明高藻水中藻类数量最大在5400万左右,有机物值明显偏高。针对天津滦河水高藻期水水质特点,建立了中试规模水处理模型,进行高藻期饮用水处理工艺的优选研究。在饮用水处理工艺建立原则,即高效、稳定、合理和经济原则的基础上,建立了约束条件、运行条件和考察指标体系,为各工艺系统的效能评价提供指导。通过对建立的强化常规水处理工艺系统和强化常规与深度处理联用组合工艺系统对浊度、有机物、藻类等指标去除率和保障率的研究,在水质安全保障约束的条件下,确定了一系列组合工艺作为优选的目标体系。最终通过灰关联分析系统进行工艺优选,通过比较灰关联度大小,可以得到工艺方案优劣顺序,灰关联度最大的为最优化工艺方案,最优化工艺方案为“HPAC强化混凝气浮—过滤”和“HPAC强化混凝气浮—过滤—臭氧生物活性炭”。结果表明此工艺针对高藻期滦河水水质特点,这两套工艺均具有良好的水质适应性,处理效果显著,基建及运行费用较少。更多还原

【Abstract】 Optimization of drinking water treatment technics was conducted and the mode for optimization of drinking water treatment technics was establishment. Analysis for water quality in Luan river during high algae-laden period. It was showed that the amount of algae reached 54 million per liter with high concentration of organics at the same time. Based on the water quality in Luan river during high algae-laden period, pilot study on the model of drinking water treatment was established and the optimization for drinking water treatment technics during high algae-laden period was conducted. Based on the principle for the establishment of drinking water treatment, which is high efficiency, stablilization and low cost, restricted condition, run condition and control index system were established to give direction to the evaluation of efficiency for each water treatment process.Study on the index such as turbidity, organics and algae etc. was conducted in the intensified process and the intensified process combined with deep treatment process. Under the condition of restriction for water quality safety, a series of water treatment process was confirmed as the aimed optimization system. Grey relativity analytical was applied to choose the best process among the alternative ones. As a result, the optimization processes were "HPAC enhanced coagulation - flotation-filtration" and "HPAC enhanced coagulation -flotation - filtration - O₃-BAC process", which were with the highest grey relation grade among intensified process and intensified combined with deep treatment process. The result shows that the two processes had characters of good applicability for water quality during high algae-laden and good treatment efficiency, low cost as well.更多还原