【正文】 ................................................ 3 工藝選擇 ....................................................................................................................... 3 第二章 編制依據(jù)及設(shè)計(jì)內(nèi)容 ........................................................................................................ 4 自然狀況 ............................................................................................................................ 4 地形地貌 ....................................................................................................................... 4 水文狀況 ....................................................................................................................... 4 地質(zhì)條件 ....................................................................................................................... 4 氣象條件 ....................................................................................................................... 4 處理流程選擇 ..................................................................................................................... 5 污水處理流程的選擇原則 ............................................................................................... 5 應(yīng)考慮的其他一些重要因素 ........................................................................................... 5 第三章 污水總泵站的設(shè)計(jì)計(jì)算 ..................................................................................................... 6 污水泵站的組 成 ................................................................................................................... 6 選擇泵房的條件 ................................................................................................................... 6 選泵的條件 .......................................................................................................................... 6 污水泵房的工藝流程 ............................................................................................................ 7 污水泵站設(shè)計(jì)計(jì)算 ............................................................................................................... 7 選泵前揚(yáng)程估算 ............................................................................................................. 7 水泵機(jī)組的選擇 ............................................................................................................. 8 泵前格柵計(jì)算 ................................................................................................................ 8 集水池設(shè)計(jì)計(jì)算 ........................................................................................................... 13 II 機(jī)器間設(shè)計(jì)計(jì)算 ........................................................................................................... 15 泵站儀表 ..................................................................................................................... 16 其他附屬設(shè)施的設(shè)計(jì) .................................................................................................... 16 第四章 污水的一級(jí)處理 ............................................................................................................. 18 格柵及其設(shè)計(jì) .................................................................................................................... 18 格柵間隙數(shù) .................................................................................................................. 18 格柵槽寬度 .................................................................................................................. 18 通過(guò)格柵的水頭損失 .................................................................................................... 18 格柵部分總長(zhǎng)度 ........................................................................................................... 19 每 日柵渣量計(jì)算 ........................................................................................................... 19 進(jìn)水與出水渠道 ........................................................................................................... 19 沉砂池及其設(shè)計(jì) ................................................................................................................. 20 沉砂池有效容積 ........................................................................................................... 20 水流過(guò)水?dāng)嗝娣e ........................................................................................................... 20 沉砂池寬度 .................................................................................................................. 21 沉砂池長(zhǎng)度 .................................................................................................................. 21 每小時(shí)所需空氣量計(jì)算 ................................................................................................ 21 沉砂室所需容積 ........................................................................................................... 21 每個(gè)沉砂斗容積 ........................................................................................................... 21 沉砂斗上口寬度 ........................................................................................................... 22 沉砂斗有效容積 ........................................................................................................... 22 進(jìn)水渠道 .................................................................................................................... 22 出水裝置 .................................................................................................................... 22 排砂裝置 .................................................................................................................... 23 初沉池及其設(shè)計(jì) ................................................................................................................. 23 沉淀池表面積 .............................................................................................................. 24 沉淀部分有效水深 ....................................................................................................... 24 沉淀部分有效容積 ...................