【正文】 ......................................................................................6 初分配流量 ....................................................................................................................................................6 管網(wǎng)的核算條件 ...................................................................................................................................................6 消防時的流量和水壓要求 ............................................................................................................................6 最不利管段發(fā)生故障時的事故用水量和水壓要求 ....................................................................................7第 4 章 給水處理工藝流程和給水處理構(gòu)筑物的選擇 .............................................................7 設(shè)計原則 ...............................................................................................................................................................7 設(shè)計規(guī)模 ...............................................................................................................................................................8 廠址選擇 ...............................................................................................................................................................83 水廠工藝流程選擇 ...............................................................................................................................................9 處理構(gòu)筑物的選擇 .............................................................................................................................................10 ........................................................................................................................................................................10㈠ 混凝劑的選擇與投加 ........................................................................................................................................10㈡ 混凝劑投加方式選擇 ........................................................................................................................................11㈢ 溶液池 ................................................................................................................................................................11㈣ 溶解池 ................................................................................................................................................................11㈤ 加藥間 ................................................................................................................................................................11 混合設(shè)備 ......................................................................................................................................................11㈠ 混合方式 ............................................................................................................................................................11㈡ 尺寸 ....................................................................................................................................................................12 絮凝設(shè)備 ......................................................................................................................................................12㈠ 絮凝池形式的選擇 ............................................................................................................................................12㈡ 尺寸 ....................................................................................................................................................................13 沉淀設(shè)備 ......................................................................................................................................................13㈠ 沉淀池類型的選擇 ............................................................................................................................................13㈡ 排泥方法 ............................................................................................................................................................15㈢ 尺寸 ....................................................................................................................................................................16 過濾設(shè)備 ......................................................................................................................................................16㈠ 過濾形式的選擇 ................................................................................................................................................16㈡ 尺寸 ....................................................................................................................................................................18㈢ 反沖洗泵房 ........................................................................................................................................................18 消毒 ..............................................................................................................................................................19㈠ 消毒方式選擇 ....................................................................................................................................................19㈡ 加氯間 ................................................................................................................................................................19 清水池 ..........................................................................................................................................................19第 5 章 取水工程 .......................................................................................................................20 取水構(gòu)造物 .........................................................................................................................................................20 地表水取水構(gòu)造物設(shè)計時應(yīng)滿足如下原則 ..............................................................................................20 取水頭部 ......................................................