【正文】 3 萬(wàn)噸城市污水處理廠一期工程及配套管網(wǎng)初步設(shè)計(jì)說(shuō)明環(huán)境保護(hù)工程研究設(shè)計(jì)院二零一零年二月初步設(shè)計(jì)對(duì)可研批復(fù)及意見(jiàn)響應(yīng)我院根據(jù)陜西省發(fā)改委對(duì)可研的批復(fù)與可研評(píng)審時(shí)專家提出的寶貴意見(jiàn)，對(duì)可行性研究報(bào)告進(jìn)一步復(fù)核，完成本初步設(shè)計(jì)。本次初步設(shè)計(jì)中在《某縣污水處理廠工程可行性研究報(bào)告》的基礎(chǔ)上調(diào)整優(yōu)化設(shè)計(jì)參數(shù)及工藝計(jì)算。明確近、遠(yuǎn)期建設(shè)的范圍。本次初步設(shè)計(jì)按近、遠(yuǎn)期規(guī)模統(tǒng)籌考慮， “一次規(guī)劃” 設(shè)計(jì)布局。本次初步設(shè)計(jì)中污水消毒工藝采用紫外消毒工藝。對(duì)生物處理工藝，與可研推薦工藝對(duì)比，本初步設(shè)計(jì)采用“A/A/O 微曝氧化溝”工藝。污水管網(wǎng)收集服務(wù)范圍、設(shè)計(jì)思路與可研一致。目 錄前 言 ..............................................................................................................................................1第一章 概 述 ..............................................................................................................4 項(xiàng)目基本情況 ..............................................................................................................................4 設(shè)計(jì)依據(jù)與基礎(chǔ)資料 ..................................................................................................................4 設(shè)計(jì)采用的主要設(shè)計(jì)規(guī)范與標(biāo)準(zhǔn) ..............................................................................................4 水質(zhì)標(biāo)準(zhǔn)..............................................................................................................................4 勘察、設(shè)計(jì)規(guī)范..................................................................................................................5 施工和驗(yàn)收規(guī)范..................................................................................................................6 主要政策法律......................................................................................................................8 設(shè)計(jì)原則 ......................................................................................................................................8 設(shè)計(jì)范圍 ......................................................................................................................................9 城市概況 ......................................................................................................................................9 地理位置..............................................................................................................................9 城市性質(zhì)及規(guī)模..................................................................................................................9 氣象條件............................................................................................................................10 水文地質(zhì)特征....................................................................................................................11 地震....................................................................................................................................11 城市給水現(xiàn)狀與規(guī)劃........................................................................................................11 建設(shè)的必要性 ............................................................................................................................12第二章 總體設(shè)計(jì)及廠址選擇 ..................................................................................14 設(shè)計(jì)水量 ....................................................................................................................................14 規(guī)劃人口預(yù)測(cè)....................................................................................................................14 污水量預(yù)測(cè)........................................................................................................................15 污水處理規(guī)模確定............................................................................................................16 設(shè)計(jì)水質(zhì) ....................................................................................................................................16 污水進(jìn)水水質(zhì)預(yù)測(cè)............................................................................................................16 污水進(jìn)水水質(zhì)確定............................................................................................................18 出水水質(zhì)與處理目標(biāo)........................................................................................................18 污水處理廠近遠(yuǎn)期結(jié)合及中水回用 ........................................................................................19 尾水排放 ....................................................................................................................................20 廠區(qū)防洪 .....................................................................................................................................20 對(duì)可行性研究報(bào)告批復(fù)及意見(jiàn)的響應(yīng) ....................................................................................21 廠址選擇 ....................................................................................................................................21 廠址選擇原則....................................................................................................................21 廠址選擇方案....................................................................................................................21 廠址方案確 定....................................................................................................................22第三章 污水管網(wǎng)工程設(shè)計(jì) ....................................................................................23 管網(wǎng)服務(wù)面積 .............................................................................................................................23 排水體制 .....................................................................................................................................23 排水體制.............................................................................................................................23 現(xiàn)狀排水體制.....................................................................................................................23 排水體制的確定.................................................................................................................26 污水管網(wǎng)系統(tǒng) .............................................................................................................................26 排水系統(tǒng)方案選擇.......................................................................................................