在(zai)以混(hun)凝-砂濾(lv)工(gong)(gong)(gong)藝(yi)為(wei)(wei)關鍵的預備處理系統軟件中(zhong),混(hun)凝-砂濾(lv)工(gong)(gong)(gong)藝(yi)的過濾(lv)材料成本費(fei)較少(shao)、過濾(lv)材料損害較少(shao),截流懸(xuan)浮固體及減少(shao)渾(hun)濁度實際效果(guo)顯(xian)著,不會有工(gong)(gong)(gong)藝(yi)特性衰減系數難題(ti),當然(ran)變成預備處理系統軟件解決(jue)一般源水(shui)的始端工(gong)(gong)(gong)藝(yi)。因為(wei)(wei)混(hun)凝-砂濾(lv)工(gong)(gong)(gong)藝(yi)對COD除去能力有限,必(bi)需(xu)時可在(zai)該工(gong)(gong)(gong)藝(yi)前設定水(shui)解酸化池斜板沉淀池等生化反應工(gong)(gong)(gong)藝(yi)以減少(shao)源水(shui)COD水(shui)準(zhun)。

在以反滲透設備超(chao)濾(lv)為關鍵(jian)的(de)(de)預備處理系統軟件中,超(chao)濾(lv)工(gong)(gong)(gong)藝(yi)的(de)(de)關鍵(jian)作用(yong)是截流懸浮固體、膠體溶液及(ji)大(da)粒度(du)有機化(hua)合物(wu),其(qi)(qi)作用(yong)與混凝(ning)(ning)-砂濾(lv)工(gong)(gong)(gong)藝(yi)相(xiang)貼(tie)近,其(qi)(qi)在工(gong)(gong)(gong)藝(yi)步驟(zou)中的(de)(de)部位也與混凝(ning)(ning)-砂濾(lv)工(gong)(gong)(gong)藝(yi)非常。但(dan)因為超(chao)濾(lv)的(de)(de)過慮(lv)精(jing)度(du)較混凝(ning)(ning)-砂濾(lv)更高、工(gong)(gong)(gong)藝(yi)成(cheng)本(ben)費更高,環境污染后(hou)特性衰減系數(shu)比較嚴重(zhong),針對高渾濁度(du)、高COD源水(shui)來講,則必須翠(cui)濾(lv)、化(hua)學(xue)纖維過慮(lv)或水(shui)解酸化(hua)池(chi)(chi)斜板(ban)沉淀池(chi)(chi)等高效(xiao)率前解決工(gong)(gong)(gong)藝(yi)。一般而言(yan),微濾(lv)工(gong)(gong)(gong)藝(yi)規(gui)定較大(da) 500um過慮(lv)精(jing)度(du)的(de)(de)前解決,超(chao)濾(lv)工(gong)(gong)(gong)藝(yi)規(gui)定較大(da) 100um過慮(lv)精(jing)度(du)的(de)(de)前解決。