上海科程電鍍廢水處理技術
來源：上海科程水處(chu)理(li)技術有限公司 閱(yue)讀：2362 更新時間(jian)：2011-03-14 11:22電鍍廢水處理技術工藝流程說明：
鈍化濃縮液用提升(sheng)泵(beng)將濃縮液輸入(ru)(ru)到還原(yuan)(yuan)池內(nei)，通(tong)(tong)(tong)過(guo)(guo)計(ji)(ji)量(liang)泵(beng)將硫酸(suan)液加入(ru)(ru)還原(yuan)(yuan)池內(nei)，使還原(yuan)(yuan)池pH值達到2－3，然后(hou)(hou)通(tong)(tong)(tong)過(guo)(guo)計(ji)(ji)量(liang)泵(beng)將還原(yuan)(yuan)劑亞硫酸(suan)加入(ru)(ru)還原(yuan)(yuan)池內(nei)，將六價鉻還原(yuan)(yuan)為三價鉻。經過(guo)(guo)還原(yuan)(yuan)處理(li)的(de)鈍化液和(he)前(qian)處理(li)，鍍鋅、鍍鎳(nie)水(shui)(shui)洗(xi)水(shui)(shui)進入(ru)(ru)大(da)調節池中(zhong)(zhong)，各種(zhong)廢(fei)水(shui)(shui)在(zai)調節池中(zhong)(zhong)經過(guo)(guo)充(chong)分的(de)均化后(hou)(hou)經提升(sheng)泵(beng)提升(sheng)至反應(ying)(ying)池1中(zhong)(zhong)，通(tong)(tong)(tong)過(guo)(guo)計(ji)(ji)量(liang)泵(beng)進入(ru)(ru)CaCl2,以(yi)破(po)壞Zn2+的(de)絡合物(wu)(wu)，在(zai)反應(ying)(ying)池2中(zhong)(zhong)通(tong)(tong)(tong)過(guo)(guo)計(ji)(ji)量(liang)泵(beng)進入(ru)(ru)NaOH,調節pH值在(zai)9－11范圍(wei)內(nei)，然后(hou)(hou)廢(fei)水(shui)(shui)流(liu)入(ru)(ru)反應(ying)(ying)池3中(zhong)(zhong)，通(tong)(tong)(tong)過(guo)(guo)計(ji)(ji)量(liang)泵(beng)進入(ru)(ru)助凝劑PAM后(hou)(hou)進入(ru)(ru)斜板沉淀(dian)池中(zhong)(zhong)，金屬氫氧(yang)化物(wu)(wu)形成污(wu)泥(ni)(ni)沉入(ru)(ru)污(wu)泥(ni)(ni)斗中(zhong)(zhong)，上清液自流(liu)進入(ru)(ru)中(zhong)(zhong)和(he)池進行酸(suan)堿調節，調回(hui)pH值在(zai)6－9范圍(wei)內(nei)，然后(hou)(hou)排放。斜板沉淀(dian)池中(zhong)(zhong)污(wu)泥(ni)(ni)定期排放至污(wu)泥(ni)(ni)池，用廂式壓濾機處理(li)成泥(ni)(ni)餅(bing)后(hou)(hou)外運深(shen)埋，污(wu)泥(ni)(ni)水(shui)(shui)返回(hui)調節池。
工藝流程：
原(yuan)水→格柵→調節(jie)池→提升泵→生物 接觸氧化→循(xun)環泵→膜分離裝置(zhi)→消毒(du)裝置(zhi)→中(zhong)水貯池→中(zhong)水用(yong)水系統
工藝流程說明：
污(wu)水(shui)經(jing)(jing)格(ge)柵進入(ru)(ru)調(diao)節池后(hou)經(jing)(jing)提(ti)升泵(beng)進入(ru)(ru)生物(wu)反(fan)(fan)應器，通過PLC控(kong)制器開啟(qi)曝(pu)氣機充氧，生物(wu)反(fan)(fan)應器出水(shui)經(jing)(jing)循環(huan)(huan)泵(beng)進入(ru)(ru)膜分(fen)離(li)處理(li)單(dan)元，濃(nong)水(shui)返回(hui)(hui)調(diao)節池，膜分(fen)離(li)的水(shui)經(jing)(jing)過快速(su)混合法(fa)氯化(hua)消毒（次(ci)氯酸(suan)鈉、漂白粉、氯片）后(hou)，進入(ru)(ru)中水(shui)貯水(shui)池池。反(fan)(fan)沖(chong)洗(xi)泵(beng)利用清(qing)(qing)洗(xi)池中處理(li)水(shui)對膜處理(li)設備進行反(fan)(fan)沖(chong)洗(xi)，反(fan)(fan)沖(chong)污(wu)水(shui)返回(hui)(hui)調(diao)節池。通過生物(wu)反(fan)(fan)應器內(nei)的水(shui)位控(kong)制提(ti)升泵(beng)的啟(qi)閉。膜單(dan)元的過濾(lv)操作(zuo)與反(fan)(fan)沖(chong)洗(xi)操作(zuo)可自動或手動控(kong)制。當膜單(dan)元需要化(hua)學清(qing)(qing)洗(xi)操作(zuo)時，關閉進水(shui)閥和污(wu)水(shui)循環(huan)(huan)閥，打(da)開藥(yao)洗(xi)閥和藥(yao)劑循環(huan)(huan)閥，啟(qi)動藥(yao)液循環(huan)(huan)泵(beng)，進行化(hua)學清(qing)(qing)洗(xi)操作(zuo)。
