由于含油廢水處理設備工程水質COD濃度并不是很高,約300mg/L,但水中含有油類,主要為浮油和乳化油,考慮采用“隔油+混凝氣浮+接觸氧化”的處理工藝對含油廢水進行處理。
具體含油廢水處(chu)理(li)工藝流程如下:
     
 
廢水(shui)→格(ge)(ge)柵井(jing)→集(ji)水(shui)井(jing)→隔(ge)油沉(chen)淀池(chi)(chi)→調節(jie)池(chi)(chi)→反(fan)應(ying)池(chi)(chi)→氣浮池(chi)(chi)→接觸氧化池(chi)(chi)→二沉(chen)池(chi)(chi)→出水(shui)廢水(shui)經管道自流進入(ru)格(ge)(ge)柵井(jing),隔(ge)除大(da)塊(kuai)雜質(zhi)后(hou)進入(ru)集(ji)水(shui)井(jing),由集(ji)水(shui)井(jing)提升(sheng)泵(beng)提升(sheng)至隔(ge)油沉(chen)淀池(chi)(chi)。去除水(shui)中的浮油是隔(ge)油沉(chen)淀池(chi)(chi)的主要目(mu)的和作用(yong),同(tong)時(shi)經靜置自然沉(chen)淀下大(da)的固體懸(xuan)浮物(wu),不(bu)僅避(bi)免堵塞設備,還能(neng)避(bi)免浮油影響后(hou)續的構筑(zhu)物(wu),因為(wei)浮油進入(ru)后(hou)續構筑(zhu)物(wu)會(hui)影響原(yuan)水(shui)COD濃度,令氧化池(chi)(chi)內水(shui)質(zhi)波(bo)動(dong)太大(da),不(bu)利于微生物(wu)穩定(ding)生長。
     
 
去除(chu)浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)后(hou),廢水(shui)(shui)中(zhong)(zhong)(zhong)還有乳(ru)(ru)(ru)化狀的(de)(de)(de)油(you)(you)(you)脂(zhi),這類(lei)油(you)(you)(you)脂(zhi)溶(rong)于水(shui)(shui)中(zhong)(zhong)(zhong),無法自然(ran)與(yu)水(shui)(shui)分(fen)離,需要(yao)經(jing)過(guo)破乳(ru)(ru)(ru)處(chu)理,乳(ru)(ru)(ru)化油(you)(you)(you)破乳(ru)(ru)(ru)后(hou)以浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)的(de)(de)(de)形式出(chu)(chu)現(xian),這時(shi)再來(lai)去除(chu)它就容(rong)易很(hen)多。破乳(ru)(ru)(ru)主(zhu)要(yao)是在(zai)反應池(chi)(chi)中(zhong)(zhong)(zhong)投加破乳(ru)(ru)(ru)劑,打破油(you)(you)(you)脂(zhi)與(yu)水(shui)(shui)的(de)(de)(de)親和力,雨水(shui)(shui)分(fen)離后(hou)形成(cheng)的(de)(de)(de)浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)油(you)(you)(you)滴在(zai)氣浮(fu)(fu)(fu)(fu)(fu)(fu)池(chi)(chi)的(de)(de)(de)微小(xiao)氣泡帶(dai)動(dong)下(xia)上浮(fu)(fu)(fu)(fu)(fu)(fu),油(you)(you)(you)滴在(zai)上浮(fu)(fu)(fu)(fu)(fu)(fu)過(guo)程(cheng)中(zhong)(zhong)(zhong)聚(ju)集在(zai)一(yi)起形成(cheng)更大的(de)(de)(de)浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you),在(zai)氣浮(fu)(fu)(fu)(fu)(fu)(fu)池(chi)(chi)表面呈(cheng)現(xian)出(chu)(chu)一(yi)層油(you)(you)(you)膜,此時(shi)再通過(guo)氣浮(fu)(fu)(fu)(fu)(fu)(fu)刮板(ban),將浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)從水(shui)(shui)中(zhong)(zhong)(zhong)刮除(chu)。經(jing)過(guo)氣浮(fu)(fu)(fu)(fu)(fu)(fu)池(chi)(chi)后(hou),含有廢水(shui)(shui)中(zhong)(zhong)(zhong)的(de)(de)(de)大部(bu)分(fen)的(de)(de)(de)浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)、乳(ru)(ru)(ru)化油(you)(you)(you)和部(bu)分(fen)顆粒物都被去除(chu),出(chu)(chu)水(shui)(shui)自流到(dao)調節池(chi)(chi)。從水(shui)(shui)中(zhong)(zhong)(zhong)分(fen)離出(chu)(chu)來(lai)的(de)(de)(de)浮(fu)(fu)(fu)(fu)(fu)(fu)油(you)(you)(you)收集到(dao)儲油(you)(you)(you)槽內,定期外運(yun)處(chu)理或(huo)進行回收利用。
廢水在調節池(chi)(chi)(chi)均衡水質,用泵(beng)打入(ru)接(jie)觸氧(yang)(yang)化池(chi)(chi)(chi),池(chi)(chi)(chi)內(nei)安裝生物(wu)填料,廢水中的有(you)機物(wu)就可(ke)被氧(yang)(yang)化池(chi)(chi)(chi)內(nei)的微生物(wu)降解,轉化成(cheng)CO2和(he)水,通過接(jie)觸氧(yang)(yang)化池(chi)(chi)(chi)有(you)機物(wu)以及殘留(liu)的油得到去(qu)除,經二沉池(chi)(chi)(chi)沉淀去(qu)除氧(yang)(yang)化池(chi)(chi)(chi)脫落的生物(wu)膜(mo),出水便(bian)可(ke)達標排放。
澳強環保,為廣大有需求的客戶供應氧化行業廢水處理設備,含油廢水處理設備,印染廢水處理等系列廢水設備,為工業用水再循環和環境保護而不懈奮斗。


											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
											
		
						
						
					
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