目 录
引言 ..................................................................................................................................... 5 1设计任务及设计资料 ...................................................................................................... 6 1.1设计任务与内容 ................................................................................................................ 6 1.2设计原始资料 .................................................................................................................... 6 1.2.1城市气象资料 ............................................................................................................ 6 1.2.2地质资料 .................................................................................................................... 6 1.2.3设计规模 .................................................................................................................... 7 1.2.4进出水水质 ................................................................................................................ 7 2、设计说明书 ................................................................................................................... 7 2.1去除率的计算 .................................................................................................................... 7 2.1.1溶解性BOD5的去除率 ................................................................................................ 7 2.1.2 CODr的去除率：........................................................................................................ 8 2.1.3.SS的去除率： .......................................................................................................... 8 2.1.4.总氮的去除率： ....................................................................................................... 8 2.1.5.磷酸盐的去除率 ....................................................................................................... 9 2.2城市污水处理工艺选择 .................................................................................................... 9 2.3、污水厂总平面图的布置 ............................................................................................... 10 2.4、处理构筑物设计流量(二级) ....................................................................................... 10 2.5、污水处理构筑物设计 .................................................................................................... 11 2.5.1.中格栅和提升泵房（两者合建在一起） .............................................................. 11 2.5.2、沉沙池 ................................................................................................................... 12 2.5.3、初沉池 ................................................................................................................... 13 2.5.4、厌氧池 ................................................................................................................... 13
2.5.5、缺氧池 ................................................................................................................... 13 2.5.6、曝气池 ................................................................................................................... 14 2.5.7、二沉池 ................................................................................................................... 14 2.6、污泥处理构筑物的设计计算 ....................................................................................... 14 2.6.1污泥泵房 .................................................................................................................. 14 2.6.2污泥浓缩池 .............................................................................................................. 15 2.7、污水厂平面，高程布置 ............................................................................................... 15 2.7.1平面布置 .................................................................................................................. 15 2.7.2管线布置 .................................................................................................................. 16 2.7.3 高程布置 ................................................................................................................. 16 3 污水厂设计计算书 ....................................................................................................... 17 3.1污水处理构筑物设计计算 .............................................................................................. 17 3.1.1中格栅 ...................................................................................................................... 17 3.1.2污水提升泵房 .......................................................................................................... 18 3.1.3、沉砂池 ................................................................................................................... 21 3.1.4、初沉池 ................................................................................................................... 22 3.1.5、厌氧池 ................................................................................................................... 24 3.1.6、缺氧池计算 ........................................................................................................... 25 3.1.7、曝气池设计计算 ................................................................................................... 25 3.1.8、二沉池 ................................................................................................................... 33 3.1.9计量堰设计计算 ...................................................................................................... 35 3.2 污泥处理部分构筑物计算 ............................................................................................. 36 3.2.1污泥浓缩池设计计算： .......................................................................................... 36 3.2.2 储泥灌与污泥脱水机房设计计算 ......................................................................... 39
3.3、高程计算 ....................................................................................................................... 39 3.3.1污水处理部分高程计算: ........................................................................................ 40 3.3.2污泥处理部分高程计算: ........................................................................................ 40 参考文献 ........................................................................................................................... 41 致 谢 ........................................................................................................................... 42
Contents
Introduction ………………………………………………………………………………
5 1
the
task
and
the
materials
of
design………………………………………………………6 1.1
the
task
and
content
of
design…………………………………………………………6 1.2
the
firsthand
information
of
design…………………………………………………6
1.2.1
Meteorological
materials
of
the
city………………………………………………6
1.2.2
materials………………………………………………………………6
1.2.3 the scale of Design………………………………………………………………7
1.2.4
quality
of
Pass
in
and
out
Geological
water……………………………………………………7 2
design
instruction
(完整版)A2O工艺污水处理厂毕业课程设计
