【正文】 ...............................................................129 污水廠非達(dá)標(biāo)污水外排風(fēng)險(xiǎn)防范措施 ...........................................................................................129 污水管網(wǎng)泄漏風(fēng)險(xiǎn)防范措施 ...........................................................................................................129 對化學(xué)藥品的風(fēng)險(xiǎn)防范措施 ...........................................................................................................130 風(fēng)險(xiǎn)事故應(yīng)急措施 ..................................................................................................................................130 環(huán)境風(fēng)險(xiǎn)應(yīng)急預(yù)案 ..................................................................................................................................131 風(fēng)險(xiǎn)評價(jià)結(jié)論 .........................................................................................................................................13110 產(chǎn)業(yè)政策、清潔生產(chǎn)、總量控制 ..................................................................................133 產(chǎn)業(yè)政策符符合性評述 .......................................................................................................................133 項(xiàng)目清潔生產(chǎn)評述 ...............................................................................................................................135 總量控制 ...............................................................................................................................................13611 廠址選擇、尾水排放方案、廠區(qū)平面布置合理性分析 .............................................137 廠址選擇合理性分析 ...........................................................................................................................137 尾水排放方案合理性分析 ...................................................................................................................137 總平面布置合理性分析 .......................................................................................................................13812 環(huán)境經(jīng)濟(jì)損益分析 ..........................................................................................................141 項(xiàng)目環(huán)保投資 ........................................................................................................................................141 項(xiàng)目的環(huán)境效益 ...................................................................................................................................141 經(jīng)濟(jì)效益分析 .......................................................................................................................................14213 環(huán)境管理與監(jiān)測計(jì)劃 .....................................................................................................143 環(huán)境管理 ................................................................................................................................................143 施工期環(huán)境管理計(jì)劃 .....................................................................................................................143 運(yùn)營期環(huán)境管理計(jì)劃 .....................................................................................................................143V / 159 環(huán)境監(jiān)測計(jì)劃 ........................................................................................................................................144 施工期環(huán)境監(jiān)測計(jì)劃 .....................................................................................................................144 運(yùn)營期監(jiān)測計(jì)劃 .............................................................................................................................144 排污口規(guī)范要求 ....................................................................................................................................145 建設(shè)項(xiàng)目環(huán)境保護(hù)設(shè)施 “三同時(shí)”一覽表 .............................................................................................14614 結(jié)論與建議 .....................................................................................................................149 結(jié)論 ........................................................................................................................................................149 項(xiàng)目建設(shè)情況 .................................................................................................................................149 環(huán)境質(zhì)量現(xiàn)狀 .................................................................................................................................149 環(huán)保措施及環(huán)境影響分析 .............................................................................................................150 環(huán)境風(fēng)險(xiǎn) .........................................................................................................................................151 公眾參與 .........................................................................................................................................151 環(huán)保措施經(jīng)濟(jì)損益分析結(jié)論 .........................................................................................................151 項(xiàng)目的可行性結(jié)論 .........................................................................................................................151 建議 ........................................................................................................................................................152附圖：附圖一 項(xiàng)目工程總體布置圖附圖二 污水處理廠總平面布置圖附圖三 污水處理廠工藝流程及產(chǎn)物環(huán)節(jié)圖附件環(huán)評委托書項(xiàng)目可行性研究報(bào)告批復(fù)項(xiàng)目選址文件專家意見修改說明6 / 1591 總 論 項(xiàng) 目 背 景老市區(qū)系原玉門市人民政府、石油管理局駐址。老君廟工業(yè)園規(guī)劃范圍整體處玉門老市區(qū)。而整個(gè)老市區(qū)只有煉油廠一座污水處理廠用于處理煉油廠的生活污水和工業(yè)廢水，其余大部分區(qū)域內(nèi)污水經(jīng)現(xiàn)有污水收集管網(wǎng)收集后直接排入石油河或直接排入地面低洼處或綠化，造成污水順地面坡度肆意橫流，對石油河以及區(qū)域地下水造成了嚴(yán)重的污染威脅；此外，老市區(qū)現(xiàn)狀排水系統(tǒng)并不完善，部分區(qū)域居民的生活污水在大街小巷任意潑倒，不但污染了城區(qū)環(huán)境，而且損害了路面，阻礙了車輛和行人的通行。項(xiàng)目污水經(jīng)處理后達(dá)到《城鎮(zhèn)污水處理廠污染物排放標(biāo)準(zhǔn)》 （GB18918—2022）一級(jí) A 標(biāo)準(zhǔn)后部分回用，部分排入石油河。評價(jià)單位在現(xiàn)場調(diào)查、搜集資料，分析了解該項(xiàng)目工程特點(diǎn)和周圍環(huán)境特征的基礎(chǔ)上，依據(jù)建設(shè)項(xiàng)目環(huán)境管理有關(guān)規(guī)定和相關(guān)導(dǎo)則的要求，編寫了《玉門市老市區(qū)污水處理廠及配套管網(wǎng)工程項(xiàng)目環(huán)境影響報(bào)告書》 。依據(jù)環(huán)保法規(guī)、產(chǎn)業(yè)政策，從環(huán)境保護(hù)角度對項(xiàng)目選址的可行性和項(xiàng)目建設(shè)的可行性做出明確結(jié)論，并提出相應(yīng)的對策和建議。對工程項(xiàng)目建設(shè)的可行性，從環(huán)境角度作出結(jié)論，力求使評價(jià)結(jié)論客觀、公正、對策建議具有可操作性。負(fù)號(hào)（）為不利影響由表 可以看出，建設(shè)項(xiàng)目施工期將對當(dāng)?shù)刈匀画h(huán)境產(chǎn)生一定程度的不利影響，其中施工作業(yè)將對當(dāng)?shù)丨h(huán)境空氣和聲環(huán)境產(chǎn)生一定不利影響，是施工期的主要環(huán)境問題，但其對環(huán)境的不利影響是局部的、短期的，隨著施工的結(jié)束而消失。因此本環(huán)評采用 NH3 和 H2S 污染源來確定本次大氣評價(jià)等級(jí)；根據(jù)項(xiàng)目的初步工程分析結(jié)果，選擇惡臭氣體 NHH 2S 二種主要污染物，分別計(jì)算每一種污染物的最大地面濃度占標(biāo)率 Pi（第