油(you)漆生(sheng)(sheng)產(chan)主(zhu)要(yao)是(shi)利用油(you)類物(wu)質(zhi)、漆料、顏(yan)料、填(tian)料、助劑等原(yuan)料通過混合、乳化(hua)等工序進行，其生(sheng)(sheng)產(chan)過程中產(chan)生(sheng)(sheng)的廢水水質(zhi)成份復(fu)雜，污染物(wu)濃度(du)高(gao)，廢水水質(zhi)、水量波(bo)動大。另外，油(you)漆容(rong)器及設備清洗也會產(chan)生(sheng)(sheng)廢水。廢水中主(zhu)要(yao)含有樹(shu)脂、溶劑、助劑、礦(kuang)物(wu)油(you)、植物(wu)油(you)、皂、顏(yan)料等有機物(wu)質(zhi)，COD濃度(du)高(gao)。

　　從(cong)擬建項目廠區廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)排(pai)(pai)放情況可(ke)知，企業主要生(sheng)(sheng)產(chan)水(shui)(shui)(shui)(shui)(shui)性漆(qi)和溶劑性漆(qi)。油漆(qi)廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)主要來源于生(sheng)(sheng)產(chan)過程(cheng)排(pai)(pai)出的工(gong)(gong)藝(yi)(yi)(yi)廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)、設備(bei)和生(sheng)(sheng)產(chan)場地清洗廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)。生(sheng)(sheng)產(chan)過程(cheng)產(chan)生(sheng)(sheng)的工(gong)(gong)藝(yi)(yi)(yi)水(shui)(shui)(shui)(shui)(shui)污(wu)染(ran)(ran)濃(nong)(nong)(nong)度(du)高，高COD達(da)30000mg/L以上，但(dan)水(shui)(shui)(shui)(shui)(shui)量小;設備(bei)、場地清潔(jie)水(shui)(shui)(shui)(shui)(shui)污(wu)染(ran)(ran)濃(nong)(nong)(nong)度(du)低，但(dan)每天清洗時間(jian)比較(jiao)集中。由(you)(you)此帶來廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)質、水(shui)(shui)(shui)(shui)(shui)量波動較(jiao)大，懸浮物(wu)(wu)多(duo)。油漆(qi)廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)由(you)(you)于其工(gong)(gong)藝(yi)(yi)(yi)特點(dian)，廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)中一(yi)般殘留(liu)了(le)生(sheng)(sheng)產(chan)工(gong)(gong)藝(yi)(yi)(yi)中所(suo)使用的大多(duo)數原料、半成品(pin)、成品(pin)，水(shui)(shui)(shui)(shui)(shui)質成分復雜(za)，毒性大。根據業主介(jie)紹，廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)中主要有(you)(you)丁醇、二甲苯、甲醛、酚類、環氧樹脂及各種助劑、動植物(wu)(wu)油、重金(jin)屬等污(wu)染(ran)(ran)物(wu)(wu)，導致廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)COD濃(nong)(nong)(nong)度(du)高。應招標書要求，所(suo)有(you)(you)工(gong)(gong)業廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)*，達(da)到回(hui)用水(shui)(shui)(shui)(shui)(shui)標準(zhun)，要求治理(li)工(gong)(gong)藝(yi)(yi)(yi)穩定、可(ke)靠。油漆(qi)廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)中主要的污(wu)染(ran)(ran)物(wu)(wu)來自于生(sheng)(sheng)產(chan)工(gong)(gong)藝(yi)(yi)(yi)中原料、半成品(pin)和成品(pin)，這(zhe)些(xie)污(wu)染(ran)(ran)物(wu)(wu)殘留(liu)在工(gong)(gong)藝(yi)(yi)(yi)水(shui)(shui)(shui)(shui)(shui)和清潔(jie)水(shui)(shui)(shui)(shui)(shui)中，一(yi)并進入廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)處理(li)站，直接(jie)導致廢(fei)(fei)水(shui)(shui)(shui)(shui)(shui)中COD濃(nong)(nong)(nong)度(du)高，毒性大。

 國內油漆廢水(shui)基本上都采(cai)(cai)用了物(wu)化法 生化法的治(zhi)理(li)模式(shi)(shi)，采(cai)(cai)用氣浮作(zuo)為物(wu)化處理(li)已經是(shi)(shi)通行方式(shi)(shi)，由于生物(wu)接(jie)觸(chu)氧化工藝(yi)(yi)成(cheng)熟可靠，大多數工藝(yi)(yi)選(xuan)擇了接(jie)觸(chu)氧化。目前正在運行的廢水(shui)處理(li)站也是(shi)(shi)采(cai)(cai)用上述工藝(yi)(yi)。

　 由于預處(chu)理效果對(dui)油漆(qi)廢水(shui)處(chu)理至關重要(yao)，其(qi)(qi)中重要(yao)的是在(zai)(zai)合(he)適的PH值下混凝(ning)氣浮，油性廢水(shui)有效范圍(wei)在(zai)(zai)7.0～8.0，水(shui)性廢水(shui)在(zai)(zai)8.5～10.5，單獨設置管路收(shou)集水(shui)性漆(qi)廢水(shui)，其(qi)(qi)它廢水(shui)進入溶劑性漆(qi)廢水(shui)收(shou)集管路。

　　當車間(jian)生(sheng)產發(fa)生(sheng)事故時可通過(guo)閥門(men)轉換讓廢水進入事故池貯存，事故池內分別設置提(ti)升泵，根據實(shi)際情況(kuang)將(jiang)池內廢水泵入隔油沉淀池進行處理。

　　在(zai)廢(fei)(fei)水(shui)(shui)(shui)(shui)處(chu)理站正(zheng)常運行的(de)(de)情況下(xia)，溶劑(ji)(ji)(ji)性(xing)漆廢(fei)(fei)水(shui)(shui)(shui)(shui)和(he)廠(chang)區生活污水(shui)(shui)(shui)(shui)一起進入溶劑(ji)(ji)(ji)性(xing)漆隔(ge)油沉淀(dian)池(chi)，由于進水(shui)(shui)(shui)(shui)標高較低，為(wei)(wei)減少土建工程(cheng)量，在(zai)溶劑(ji)(ji)(ji)性(xing)漆隔(ge)油沉淀(dian)池(chi)前設置集水(shui)(shui)(shui)(shui)井(jing)，通(tong)過(guo)提升泵泵入并列運行的(de)(de)兩套溶劑(ji)(ji)(ji)性(xing)漆隔(ge)油沉淀(dian)池(chi)中。在(zai)這里，廢(fei)(fei)水(shui)(shui)(shui)(shui)中的(de)(de)油脂上(shang)(shang)浮和(he)溶劑(ji)(ji)(ji)，較大(da)的(de)(de)懸浮物(wu)(wu)下(xia)沉。隔(ge)油沉淀(dian)池(chi)出水(shui)(shui)(shui)(shui)泵入為(wei)(wei)2#混(hun)凝(ning)反(fan)應(ying)器，通(tong)過(guo)投加HCL或(huo)NaOH將(jiang)(jiang)廢(fei)(fei)水(shui)(shui)(shui)(shui)的(de)(de)PH值由5.5～11.5調(diao)到7.0～8.0。然后(hou)投加聚(ju)合(he)氯化(hua)鋁(PAC)和(he)聚(ju)丙烯乙酰(xian)胺(PAM)進行混(hun)凝(ning)反(fan)應(ying)，待廢(fei)(fei)水(shui)(shui)(shui)(shui)和(he)混(hun)凝(ning)劑(ji)(ji)(ji)充分(fen)混(hun)合(he)后(hou)進入2#氣(qi)浮機(ji)組，通(tong)過(guo)壓縮雙電子層、吸附橋聯(lian)、網捕(bu)等作用將(jiang)(jiang)水(shui)(shui)(shui)(shui)中的(de)(de)部分(fen)有機(ji)物(wu)(wu)和(he)懸浮物(wu)(wu)形成(cheng)較大(da)的(de)(de)顆粒物(wu)(wu)質并粘附于氣(qi)泡(pao)(pao)上(shang)(shang)，氣(qi)泡(pao)(pao)在(zai)上(shang)(shang)浮過(guo)程(cheng)中使大(da)部分(fen)有機(ji)物(wu)(wu)質和(he)無機(ji)污染物(wu)(wu)質形成(cheng)浮渣而(er)去除。

　　氣浮出水進入中(zhong)轉(zhuan)池。浮渣自(zi)流入干化(hua)場進行干化(hua)。水性(xing)漆(qi)(qi)廢水單獨進入水性(xing)漆(qi)(qi)沉淀池進行處理，出水泵入1#混凝(ning)反(fan)應器，通(tong)過投加(jia)NaOH將廢水的PH值調(diao)到8.5～10.5，然(ran)后投加(jia)破乳、混凝(ning)、助凝(ning)藥劑進行混凝(ning)反(fan)應。由于(yu)混凝(ning)形成的塊狀物較大(da)，大(da)塊的懸浮物在沉淀罐(guan)內沉淀后，細小的懸浮物和廢水一起進入1#氣浮機(ji)組(zu)。

　　通過(guo)壓(ya)縮雙電子層、吸附(fu)橋(qiao)聯(lian)、網捕等作(zuo)用(yong)將水(shui)中(zhong)(zhong)的部(bu)分有(you)(you)機物(wu)和懸浮(fu)物(wu)形成較大的顆粒物(wu)質并粘附(fu)于(yu)(yu)氣(qi)(qi)泡(pao)上，氣(qi)(qi)泡(pao)在上浮(fu)過(guo)程中(zhong)(zhong)使(shi)大部(bu)分有(you)(you)機物(wu)質和無機污染(ran)(ran)(ran)物(wu)質形成浮(fu)渣(zha)而去除(chu)。氣(qi)(qi)浮(fu)出水(shui)進入中(zhong)(zhong)轉池。浮(fu)渣(zha)自流(liu)入干(gan)化(hua)場進行干(gan)化(hua)。1、2#氣(qi)(qi)浮(fu)機組出水(shui)進入中(zhong)(zhong)轉池，通過(guo)提(ti)升泵(beng)泵(beng)入預曝(pu)氣(qi)(qi)池。在這里設置兩臺提(ti)升泵(beng)，池內(nei)設置下(xia)位浮(fu)球，以保證提(ti)升正常工作(zuo)。中(zhong)(zhong)轉池內(nei)廢(fei)水(shui)由綜合提(ti)升泵(beng)泵(beng)入預曝(pu)氣(qi)(qi)池，由于(yu)(yu)該廢(fei)水(shui)污染(ran)(ran)(ran)物(wu)濃(nong)度較高，廢(fei)水(shui)經過(guo)氣(qi)(qi)浮(fu)系統處理后仍(reng)然(ran)有(you)(you)較高的COD，將曝(pu)氣(qi)(qi)池內(nei)設置散流(liu)曝(pu)氣(qi)(qi)器，通過(guo)鼓入空(kong)氣(qi)(qi)來加(jia)速廢(fei)水(shui)的混合，同時(shi)還對廢(fei)水(shui)中(zhong)(zhong)的污染(ran)(ran)(ran)物(wu)有(you)(you)一定的去除(chu)率。

　　預(yu)曝氣(qi)(qi)(qi)池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)自(zi)流入(ru)(ru)初沉(chen)池(chi)(chi)，在(zai)此(ci)(ci)攔截預(yu)曝氣(qi)(qi)(qi)池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)含有(you)部分(fen)(fen)(fen)有(you)機(ji)污(wu)泥和無機(ji)顆粒(li)。初沉(chen)配水(shui)(shui)(shui)(shui)(shui)(shui)池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)自(zi)流入(ru)(ru)生(sheng)物(wu)(wu)接觸氧(yang)化池(chi)(chi)，通(tong)過(guo)(guo)(guo)在(zai)池(chi)(chi)體(ti)(ti)中(zhong)裝加填料作為微生(sheng)物(wu)(wu)載體(ti)(ti)，以(yi)此(ci)(ci)提(ti)(ti)高微生(sheng)物(wu)(wu)的(de)(de)濃(nong)度。池(chi)(chi)內設(she)置曝氣(qi)(qi)(qi)管路，通(tong)過(guo)(guo)(guo)鼓風機(ji)鼓入(ru)(ru)空氣(qi)(qi)(qi)，為微生(sheng)物(wu)(wu)的(de)(de)生(sheng)長(chang)提(ti)(ti)供所(suo)需要(yao)的(de)(de)氧(yang)量(liang)。生(sheng)物(wu)(wu)接觸氧(yang)化池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)自(zi)流入(ru)(ru)二沉(chen)池(chi)(chi)中(zhong)心管，在(zai)沉(chen)淀池(chi)(chi)中(zhong)進行泥水(shui)(shui)(shui)(shui)(shui)(shui)分(fen)(fen)(fen)離(li)(li)。沉(chen)淀池(chi)(chi)分(fen)(fen)(fen)離(li)(li)出來的(de)(de)活性(xing)污(wu)泥自(zi)流入(ru)(ru)污(wu)泥濃(nong)縮池(chi)(chi)進行濃(nong)縮。沉(chen)淀池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)管道自(zi)流到(dao)中(zhong)間(jian)水(shui)(shui)(shui)(shui)(shui)(shui)池(chi)(chi)。中(zhong)間(jian)水(shui)(shui)(shui)(shui)(shui)(shui)池(chi)(chi)設(she)置稀(xi)釋(shi)泵(beng)將(jiang)部分(fen)(fen)(fen)出水(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)入(ru)(ru)前段預(yu)曝氣(qi)(qi)(qi)池(chi)(chi)，其余出水(shui)(shui)(shui)(shui)(shui)(shui)進入(ru)(ru)砂濾(lv)(lv)(lv)池(chi)(chi)以(yi)除(chu)去出水(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)部分(fen)(fen)(fen)細(xi)小(xiao)懸(xuan)浮物(wu)(wu)。砂濾(lv)(lv)(lv)池(chi)(chi)出水(shui)(shui)(shui)(shui)(shui)(shui)通(tong)過(guo)(guo)(guo)提(ti)(ti)升泵(beng)泵(beng)入(ru)(ru)DA863過(guo)(guo)(guo)濾(lv)(lv)(lv)器(qi)，在(zai)提(ti)(ti)升泵(beng)入(ru)(ru)口處投加氧(yang)化劑(ji)、絮凝劑(ji)，經水(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)葉輪充(chong)分(fen)(fen)(fen)攪拌后均勻(yun)混合(he)將(jiang)原水(shui)(shui)(shui)(shui)(shui)(shui)中(zhong)的(de)(de)膠體(ti)(ti)物(wu)(wu)質及細(xi)小(xiao)固體(ti)(ti)顆粒(li)懸(xuan)浮物(wu)(wu)進行微絮凝反(fan)(fan)(fan)應，快速生(sheng)成(cheng)體(ti)(ti)積大于5um的(de)(de)絮體(ti)(ti)，流經過(guo)(guo)(guo)濾(lv)(lv)(lv)器(qi)內863濾(lv)(lv)(lv)料過(guo)(guo)(guo)濾(lv)(lv)(lv)截留，以(yi)及降低化學需氧(yang)量(liang)、生(sheng)物(wu)(wu)需氧(yang)量(liang)，過(guo)(guo)(guo)濾(lv)(lv)(lv)器(qi)出水(shui)(shui)(shui)(shui)(shui)(shui)通(tong)過(guo)(guo)(guo)消毒處理后，深度處理水(shui)(shui)(shui)(shui)(shui)(shui)進入(ru)(ru)回用(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)池(chi)(chi)。過(guo)(guo)(guo)濾(lv)(lv)(lv)器(qi)采(cai)用(yong)(yong)氣(qi)(qi)(qi)水(shui)(shui)(shui)(shui)(shui)(shui)聯合(he)沖洗(xi)(xi)，反(fan)(fan)(fan)洗(xi)(xi)空氣(qi)(qi)(qi)由風機(ji)提(ti)(ti)供，反(fan)(fan)(fan)洗(xi)(xi)水(shui)(shui)(shui)(shui)(shui)(shui)采(cai)用(yong)(yong)原水(shui)(shui)(shui)(shui)(shui)(shui)反(fan)(fan)(fan)洗(xi)(xi)，由原水(shui)(shui)(shui)(shui)(shui)(shui)提(ti)(ti)升泵(beng)增壓提(ti)(ti)供。系統的(de)(de)廢水(shui)(shui)(shui)(shui)(shui)(shui)(DA863過(guo)(guo)(guo)濾(lv)(lv)(lv)器(qi)反(fan)(fan)(fan)洗(xi)(xi)廢水(shui)(shui)(shui)(shui)(shui)(shui))排入(ru)(ru)油(you)性(xing)漆隔油(you)沉(chen)淀池(chi)(chi)。

　　氣(qi)浮系統的污(wu)(wu)(wu)泥(ni)(ni)(ni)化(hua)學污(wu)(wu)(wu)泥(ni)(ni)(ni)自流入(ru)干(gan)化(hua)場(chang)干(gan)化(hua)，干(gan)化(hua)后的污(wu)(wu)(wu)泥(ni)(ni)(ni)運(yun)至干(gan)泥(ni)(ni)(ni)場(chang)，干(gan)化(hua)場(chang)濾液(ye)自流入(ru)污(wu)(wu)(wu)泥(ni)(ni)(ni)濃(nong)(nong)縮池(chi)。沉(chen)淀池(chi)分離出來的活性污(wu)(wu)(wu)泥(ni)(ni)(ni)自流入(ru)污(wu)(wu)(wu)泥(ni)(ni)(ni)濃(nong)(nong)縮池(chi)進行濃(nong)(nong)縮處(chu)理。濃(nong)(nong)縮池(chi)的污(wu)(wu)(wu)泥(ni)(ni)(ni)定期(qi)泵入(ru)臥螺離心機，泥(ni)(ni)(ni)餅儲存于干(gan)泥(ni)(ni)(ni)場(chang)堆放，定期(qi)外運(yun)處(chu)置(zhi)。污(wu)(wu)(wu)泥(ni)(ni)(ni)濃(nong)(nong)縮池(chi)上清液(ye)排入(ru)隔油沉(chen)淀池(chi)。