【正文】 .. 23 排水系統(tǒng)布局 ...................................................................................................................................... 25 排水管道管材選擇 .............................................................................................................................. 26 規(guī)劃年限 .............................................................................................................................................. 29 工程規(guī)模論證 ...................................................................................................................................... 30 污水量預(yù)測(cè) .................................................................................................................................. 30 工程設(shè)計(jì)規(guī)模 ............................................................................................................................. 32 污水進(jìn)出水水質(zhì) .................................................................................................................................. 33 設(shè)計(jì)進(jìn)廠污水水質(zhì) ..................................................................................................................... 33 設(shè)計(jì)出水水質(zhì)目標(biāo) ..................................................................................................................... 34 污水處理效率 ............................................................................................................................. 35 污水處理廠廠址的選擇 ..................................................................................................................... 35 選址原則 ...................................................................................................................................... 35 廠址方案比選 ............................................................................................................................. 36 污水處理方案論證 .............................................................................................................................. 38 第一方案 A/A/O 工藝 ................................................................................................................ 51 第二方案 CAST工藝 ................................................................................................................. 55 方案比較 ...................................................................................................................................... 61 污泥處理工藝選擇 .............................................................................................................................. 63 消毒工藝選擇 ...................................................................................................................................... 64 ii 污水二次提升泵房工藝選擇 ............................................................................................................. 66 3 污水管線工程設(shè)計(jì) ...................................................................................................................................... 68 設(shè)計(jì)依據(jù) .............................................................................................................................................. 68 設(shè)計(jì)范圍 .............................................................................................................................................. 68 設(shè)計(jì)規(guī)劃年限及設(shè)計(jì)規(guī)模 ................................................................................................................. 68 排水管網(wǎng)設(shè)計(jì) ...................................................................................................................................... 68 污水截流干管設(shè)計(jì) ..................................................................................................................... 69 管道及附屬構(gòu)筑物設(shè)計(jì) ............................................................................................................. 69 污水管網(wǎng)主要工程量 .......................................................................................................................... 70 4 污水處理廠工程設(shè)計(jì) .................................................................................................................................. 72 設(shè)計(jì)依據(jù) .............................................................................................................................................. 72 污水處理廠廠址 .................................................................................................................................. 72 污水處理廠工藝流程 .......................................................................................................................... 72 污水處理廠平面布置 .......................................................................................................................... 73 污水處理廠高程設(shè)計(jì) .......................................................................................................................... 74 污水處理廠工藝設(shè)計(jì) .......................................................................................................................... 75 進(jìn)廠溢流檢查井 ......................................................................................................................... 75 粗格柵間及污水提升泵房 ......................................................................................................... 76 細(xì)格柵及 旋流沉砂池 ................................................................................................................. 77 CAST反應(yīng)池 .............................................................................................................................. 78 紫外消毒間 .................................................................................................................................. 80 污水二次提升泵房 ..................................................................................................................... 81 閥門井排水提升泵房 ................................................................................................................. 81 鼓風(fēng)機(jī)房 ..............................................................