【作者】 何细军；

【导师】 田光明；

【作者基本信息】 浙江大学 ， 环境工程， 2011， 硕士

【摘要】 本文针对目前常用农村生活污水处理技术效率较低,而城市污水处理技术再农村使用的运行成本较高的现状,将太阳能技术与A2/O工艺相结合处理农村生活污水,通过引入太阳能作为新型能源,为污水处理中的增氧曝气提供动力,克服运行成本的瓶颈,从而开发出农村生活污水处理新技术。本文主要从三个方面展开研究：①现有生活污水处理技术的特点分析,用太阳能进行功能强化的配套性等；②不同气象条件对太阳能发电量以及对曝气效果的影响；③两种水力负荷下太阳能驱动A2/O工艺的处理效果,以及工艺运行策略研究等。主要得到如下结果：(1)不同气象条件对太阳能发电量以及对曝气效果的影响研究表明：①太阳能板发电量随着天气的晴天、多云、阴天和雨天的不同变化呈现出显著的差异性。②发电量基本可以满足曝气量的需求,发电量不是曝气量的决定性因素,影响曝气量的还有其他很多因素,比如：蓄电池的充放电特征、曝气方式等。③排除雨水的稀释作用、水力负荷、水体中污染物的浓度、曝气方式等因素的影响,曝气量和好氧池中的溶解氧水平呈正相关性。(2)太阳能驱动A2/O工艺的运行效果研究表明：①TN去除效果在水力负荷为30031/d.m2时较好；②两种水力负荷下氨氮去除效果差异不显著；③两种水力负荷下TP去除效果差异不显著,只是当水力负荷由15011/d.m2提升至30031/d.m2时,系统会受到冲击,需要经过一个短暂的恢复期来恢复除磷效率；④两种水力负荷下COD的去除效果差异显著。当水力负荷为15011/d.m2时,去除效果较好；当水力负荷为30031/d.m2时,去除效果较差。更多还原

【Abstract】 This research directs at curret situation that the efficiency of current rural sewage treatment technology which is always used is low and current situation that the high cost of urban sewage treatment technology when used in rural area.It conbines solar technology and A2/O technology that treats rural sewage to treat rual sewage. It introduces solar energy as new energy to supply power for oxygen aeration to overcome the bottleneck of operating cost,in order to develope new technology treating rural sewage.This research unfolds in three sides. Firstly, analysis of features of current rural sewage treatment technology and the charactersitics of match using solar energy to strengthen funtion.Secondly,it mainly researchs the effect of different weather condition has on generation of solar energy and aeration effect.Thirdly, it researchs the treatment effect of A2/O technology driven by solar energy under two hydraulic loadings,and it researchs the strategy of process operation.This research has three conclusions.(1)Firstly, generating capacity of solar panels shows significant differences with the changing of weather conditons sunny,cloudy and rainy. Secondly,generation basicly meets the need of aeration. Generation is not decisive factor that effcets aeration. There are many other factors that affect aeration,such as charging and discharging characteristics of battery,the way of aeration,the volume of aeration and so on. Thirdly,excluding the effects of factors such as dilution of rainwater, hydraulic loading,the concerntration of pollutants in waterbody,the way of aeration,the volume of aeration has positive correlation with DO in aerobic pond.(2) Firstly, when hydraulic loadings is 30031/d.m2,the removing effect of TN is better. Secondly, the removing effect of Ammonia dose not show significant difference under two hydraulic loadings.Thirdly,the removing effect of TP dose not show significant difference under two hydraulic loadings.But when the hydraulic loading increases from 15011/d.m2 to 30031/d.m2, the system suffers impact. It needs a short convalescence to regain effect of removing of TP. fourthly, the removing effect of COD shows significant difference under two hydraulic loadings.When the hydraulic loading is 15011/d.m2,the removing effect of COD is better.When the hydraulic loading is 30031/d.m2,the removing effect of COD is worse.更多还原