魏宁宁的摘要.doc

摘要
本设计的主要目的是设计一处理能力达到6万m3/d,而且出水水质能够达到污水综合排放二级标准的工艺流程。在认真分析国内外多种污水处理的理论技术和工程实践的基础上，针对葫芦岛市新城区生活污水现状和该地区的水文、气候等条件，仔细比较了普通活性污泥法、氧化沟、AB法等处理工艺的优缺点，最终确定了A2/O污水处理工艺。本设计工艺注重除磷脱氮工艺流程，其中详细的阐述了该流程中各个环节的设计以及处理效果。
A2/O污水处理工艺的计算过程中，充分考虑了厌氧池、缺氧池、好氧池三个池子的合理性，在设备选型上即考虑实用性又要考虑经济性，以尽量节约资金。A2/O工艺处理后的污水出水基本上达到了预计标准，而且完成具有能够处理葫芦岛市新城区生活污水的能力。通过本城市污水处理厂的设计，对本地区的环境、社会、经济方面都带来了效益。
关键词：脱氮；除磷；A2/O工艺；污水

Abstract
The main aim of this design is designing one handle capability attaining 6 thousand m3/d but also appears above water that the water quality attain the sewage synthesis and place in proper order two steps of criterion technological processes . In earnestly analyzes the domestic and foreign many kinds of sewage treatment the theory technology and in the project practice foundation, in view of Huludao city new city sanitary sewage condition and so on present situation and this local hydrology, climate, has carefully compared ordinary active processing craft the and so on sludge law, oxidation ditch, AB law good and bad points, finally has determined the A2/O sewage treatment craft. This design craft attention except phosphorus technical process, in detailed elaboration this flow each link design as well as processing effect.
In the A2/O sewage treatment craft computation process, had fully considered tires of the oxygen pond, the oxygen deficit pond, the good oxygen pond three pools rationalities, is the consideration usability must consider the efficiency on the equipment shaping, to saves the fund as far as possible. After the A2/O craft processing sewage water leakage basically reached higher authorities the estimate standard, moreover completed has can process the Huludao city new city sanitary sewage the ability. Through this city sewage treatment plant design, to this local environment, the society, the economical aspect has all brought the benefit.
Keywords：Nitrogen；Except for Phosphorus；A2/O 's technology ；Sewage