污水处理a2o工艺设计---说明书.doc

1、management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technolog

2、y security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for X

3、X educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information . Team. Information security work Conference held each semester, and deployment of informat

4、ion security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and inf

5、ormation security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to det

6、ect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management,

7、 and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information

8、 management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in cha

9、rge of whos in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not c

10、lassified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. Total education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, tes

11、t database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grad

12、e protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high qu

13、ality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, wire (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educational equipme

14、nt in the classroom. . With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower plann

15、ing, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying

16、to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platfo

17、rm, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and

18、 secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the cla

19、ssrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical

20、letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital ed

21、ucation resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading

22、group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering

23、 project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement o

24、f the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong南 京 林 业 大 学课 程 设 计 任 务 书学院(系)：化学工程学院专业：环境工程系学生姓名：鲍宇学生学号：课程设计题目：70000m3/d城市污水处理厂工艺设计起讫日期：6月3日-7月3日指导老师:陈一良目 录

25、1摘要 2 2.第一章 设计概论 21.1设计依据和任务 21.2设计要求 23.第二章 工艺流程的选择 34.第三章 工艺流程设计计算 43.1 设计流量的计算 43.2 设备设计计算 43.2.1格栅 432.2 提升泵房 53.2.3 细格栅 63.2.4 沉砂池 73.2.5初沉池 83.2.6 A2/O 103.2.7 二沉池 16 3.2.8 接触池和加氯间 173.2.9 污泥处理构筑物的计算 185.第四章 平面布置 234.1 污水处理厂平面布置 234.1.1平面布置原则 234.1.2 具体平面布置 244.2 污水处理厂高程布置 264.2.1主要任务 264.2.2

26、高程布置原则 264.2.3高程布置结果 266.第五章 参考文献 30摘要随着社会进步，人们对于城市污水的处理的要求愈加严格。除了基本的去除污水中BOD和SS的要求外，通常还要求工艺由于不同环境条件，不同功能的微生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物能被开环或断链，使得N、P、有机碳被同时去除，并提高对不可降解有机物的去除效果。它可以同时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3N应完全硝化，好氧池能完成这一功能，缺氧池则完成脱氮功能。厌氧池和好氧池联合完成除磷功能。此外该工艺还具有高效、节能的特点，且耐冲击负荷较高，出水水质好。因

27、此,更具有广泛的适应性，完全适合本设计的实际要求。本工艺的主要构筑物包括格栅、污水泵房、平流沉砂池、好氧池、厌氧池、缺氧池、二沉池、接触消毒池、浓缩池、污泥脱水机房等。关键词： 格栅 泵房 二沉池第一章 设计概论1.1 设计依据和任务1. 本课程设计课题任务的内容和要求（包括原始数据、技术参数、设计要求等）设计基础资料：原始数据: Q=70000m3/d某城镇污水处理厂设计日平均水量为70000m3/d.进水水质如下（单位：mg/l）PHCODBOD5SSTNNH3-NTP处理前6-939018028045256处理后6-960202020151（1）污水处理要求达到城镇污水处理厂污染物排放标

28、准中的一级B标准。（2）生化部分采用A2/O工艺。（3）来水管底标高446.0m。受纳水体位于厂区南侧150m，50年一遇最高水位448.0m。（4）厂区地势平坦，地坪标高450.0m。厂址周围工程地质良好，适合于修建城市污水处理厂。（5）所在地区平均气压730.2mmHg，年平均气温13.1,常年主导风向为东南风。1.2 设计要求 （1) 设计计算说明书。说明设计的任务、内容和要求，设计的范围和依据，工艺流程的确定，进行工艺设计计算，包括计算过程（含计算草图），主要设备的选取等。 （2）设计图纸两张（CAD 绘图） 总平面布置图或工艺流程及高程布置图。 构筑物工艺设计图，选取一个主要的构筑物。 图纸应比例适当，布局紧凑合理，表达准确充分，绘图符合标准和规范。第二章 工艺流程的选择