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對于原水融解硅含量較高的反滲透預備處理系統設計方案 對此類水資源標準下運作的反滲透預備處理系統設計方案一般有以下幾類方式 ： 在現場標準容許的狀況下，根據系統內設定的熱交換器將給排水溫度調節至28～35℃上下，從而提升水里氯化鎂化學物質的溶解性，并與操縱系統水利用率的工藝技術緊密結合，來保證 反滲透系統在運作全過程中無硅橡膠垢產生.它是在工程項目中常常選用的方式 。在此類標準下，一般應留意將反滲透濃水系統的二氧化硅的含量操縱在150mg/l下列。

選(xuan)用(yong)石灰粉預變軟(ruan)和(he)投(tou)加(jia)鎂劑(ji)（菱苦土）緊密結合的(de)(de)(de)(de)方(fang)式 除硅(gui)。該方(fang)式 能(neng)夠將(jiang)融(rong)解在(zai)原水中(zhong)的(de)(de)(de)(de)二氧化硅(gui)除去60%之(zhi)上(shang)，此(ci)(ci)外(wai)，本(ben)加(jia)工(gong)工(gong)藝在(zai)客戶操(cao)作過程時較(jiao)為不便(bian)，因此(ci)(ci)本(ben)加(jia)工(gong)工(gong)藝在(zai)中(zhong)小(xiao)型(xing)污水處(chu)理系(xi)統中(zhong)運用(yong)非(fei)常少，而在(zai)大(da)中(zhong)型(xing)反(fan)滲(shen)透(tou)系(xi)統中(zhong)被普遍選(xuan)用(yong)。 投(tou)加(jia)硅(gui)增(zeng)稠(chou)劑(ji)。現階段(duan)，因為進口硅(gui)增(zeng)稠(chou)劑(ji)的(de)(de)(de)(de)優勢能(neng)而造成該方(fang)式 在(zai)中(zhong)國(guo)近期動工(gong)的(de)(de)(de)(de)大(da)中(zhong)型(xing)反(fan)滲(shen)透(tou)工(gong)程項目中(zhong)已被普遍選(xuan)用(yong)。從經(jing)銷商遞交的(de)(de)(de)(de)技術(shu)性文檔和(he)有關信息看(kan)來，在(zai)運用(yong)含(han)(han)有的(de)(de)(de)(de)乃至容(rong)許反(fan)滲(shen)透(tou)濃水系(xi)統二氧化硅(gui)的(de)(de)(de)(de)含(han)(han)量(liang)做到240~290PPM上(shang)下。 但對一(yi)個(ge)反(fan)滲(shen)透(tou)系(xi)統設計(ji)師(shi)而言，實(shi)(shi)際(ji)工(gong)程項目中(zhong)反(fan)滲(shen)透(tou)濃水系(xi)統二氧化硅(gui)的(de)(de)(de)(de)所(suo)容(rong)許的(de)(de)(de)(de)含(han)(han)量(liang)，應依據實(shi)(shi)際(ji)投(tou)加(jia)所(suo)容(rong)許的(de)(de)(de)(de)性能(neng)指標和(he)合乎當場標準(zhun)的(de)(de)(de)(de)投(tou)加(jia)計(ji)算軟(ruan)件(jian)的(de)(de)(de)(de)仿真模擬結果(guo)而明確(que)。 

對于原(yuan)水帶有氫氧(yang)化(hua)(hua)(hua)物(wu)的(de)(de)(de)反(fan)滲(shen)透(tou)預(yu)(yu)備處理(li)(li)系統(tong)設計方案 在預(yu)(yu)備處理(li)(li)系統(tong)中(zhong)設定對原(yuan)水的(de)(de)(de)預(yu)(yu)空(kong)氣氧(yang)化(hua)(hua)(hua)加(jia)工工藝(yi)，隨后(hou)根據混(hun)凝(ning)土(tu)、地(di)基沉降(jiang)和沙(sha)濾或錳砂濾料過(guo)慮(lv)等加(jia)工工藝(yi)，將原(yuan)水中(zhong)的(de)(de)(de)鐵、錳離子以及(ji)化(hua)(hua)(hua)學(xue)物(wu)質(zhi)除去(qu)。 在預(yu)(yu)備處理(li)(li)系統(tong)中(zhong)，加(jia)設石灰粉預(yu)(yu)變軟(ruan)和混(hun)凝(ning)土(tu)、回(hui)應、地(di)基沉降(jiang)的(de)(de)(de)組成工藝(yi)處理(li)(li)一般均能夠將原(yuan)水中(zhong)的(de)(de)(de)絕(jue)大多數氫氧(yang)化(hua)(hua)(hua)物(wu)除去(qu)。 選用光(guang)電(dian)催(cui)化(hua)(hua)(hua)凝(ning)結、地(di)基沉降(jiang)和多物(wu)質(zhi)過(guo)慮(lv)的(de)(de)(de)預(yu)(yu)備處理(li)(li)組成加(jia)工工藝(yi)，也可將水里的(de)(de)(de)絕(jue)大多數鐵氫氧(yang)化(hua)(hua)(hua)物(wu)除去(qu)。 投加(jia)有機化(hua)(hua)(hua)學(xue)增稠劑。在能夠合理(li)(li)地(di)避免碳酸鹽(yan)積垢的(de)(de)(de)與此同時(shi)，還能夠避免一定量的(de)(de)(de)氫氧(yang)化(hua)(hua)(hua)物(wu)在反(fan)滲(shen)透(tou)膜系統(tong)中(zhong)的(de)(de)(de)堆積。 

對(dui)于原(yuan)(yuan)水(shui)(shui)(shui)(shui)帶有(you)(you)純(chun)(chun)天然(ran)有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)的(de)(de)反滲透(tou)(tou)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)設(she)(she)計方案 在(zai)(zai)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)，設(she)(she)定(ding)石(shi)灰粉預(yu)(yu)變軟(ruan)、混凝土、回應(ying)組成工(gong)(gong)(gong)藝(yi)處(chu)理(li)(li)(li)，隨后再(zai)根據多物(wu)(wu)質過(guo)慮(lv)和(he)(he)細沙過(guo)慮(lv)的(de)(de)處(chu)理(li)(li)(li)工(gong)(gong)(gong)藝(yi)，以除去(qu)原(yuan)(yuan)水(shui)(shui)(shui)(shui)中(zhong)的(de)(de)被(bei)吸咐的(de)(de)純(chun)(chun)天然(ran)腐殖有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)。該(gai)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)在(zai)(zai)地(di)下(xia)水(shui)(shui)(shui)(shui)和(he)(he)冷卻循(xun)環水(shui)(shui)(shui)(shui)除鹽凈(jing)化(hua)處(chu)理(li)(li)(li)解(jie)決(jue)的(de)(de)大(da)中(zhong)型反滲透(tou)(tou)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)被(bei)普遍選(xuan)用。 在(zai)(zai)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)設(she)(she)定(ding)活性炭過(guo)濾(lv)過(guo)慮(lv)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)，除去(qu)原(yuan)(yuan)水(shui)(shui)(shui)(shui)中(zhong)猶存的(de)(de)有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)。該(gai)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)在(zai)(zai)大(da)中(zhong)小(xiao)型反滲透(tou)(tou)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)被(bei)常(chang)(chang)常(chang)(chang)選(xuan)用，特別是在(zai)(zai)在(zai)(zai)礦泉(quan)水(shui)(shui)(shui)(shui)生(sheng)產制造和(he)(he)生(sheng)活用水(shui)(shui)(shui)(shui)凈(jing)化(hua)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)運用數較(jiao)多。 在(zai)(zai)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)加(jia)(jia)(jia)設(she)(she)有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)給礦機(ji)(ji)(ji)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)，便于比較(jiao)完全地(di)除去(qu)原(yuan)(yuan)水(shui)(shui)(shui)(shui)中(zhong)的(de)(de)有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)。該(gai)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)在(zai)(zai)電子產業(ye)的(de)(de)超(chao)純(chun)(chun)水(shui)(shui)(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)和(he)(he)原(yuan)(yuan)水(shui)(shui)(shui)(shui)為江(jiang)、河、湖泊，水(shui)(shui)(shui)(shui)里有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)含量相對(dui)性較(jiao)多或成份也比較(jiao)繁(fan)雜的(de)(de)反滲透(tou)(tou)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)有(you)(you)被(bei)選(xuan)用。 將微過(guo)濾(lv)裝(zhuang)置（0.2μm）和(he)(he)超(chao)濾(lv)器(qi)(qi)（截流相對(dui)分(fen)子質量在(zai)(zai)6000～20000）做為有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)的(de)(de)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)機(ji)(ji)(ji)器(qi)(qi)設(she)(she)備(bei)(bei)(bei)(bei)應(ying)用，該(gai)加(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)在(zai)(zai)中(zhong)小(xiao)型反滲透(tou)(tou)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)被(bei)常(chang)(chang)常(chang)(chang)應(ying)用。 在(zai)(zai)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)以納濾(lv)膜(mo)分(fen)選(xuan)設(she)(she)備(bei)(bei)(bei)(bei)做為反滲透(tou)(tou)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)預(yu)(yu)備(bei)(bei)(bei)(bei)處(chu)理(li)(li)(li)機(ji)(ji)(ji)器(qi)(qi)設(she)(she)備(bei)(bei)(bei)(bei)，能(neng)夠將相對(dui)分(fen)子質量在(zai)(zai)200之上的(de)(de)有(you)(you)機(ji)(ji)(ji)化(hua)合(he)(he)(he)物(wu)(wu)和(he)(he)微生(sheng)物(wu)(wu)菌種、病毒(du)、熱原(yuan)(yuan)除去(qu)。在(zai)(zai)二級(ji)海水(shui)(shui)(shui)(shui)淡化(hua)設(she)(she)備(bei)(bei)(bei)(bei)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)合(he)(he)(he)以地(di)下(xia)水(shui)(shui)(shui)(shui)為水(shui)(shui)(shui)(shui)資源的(de)(de)超(chao)純(chun)(chun)水(shui)(shui)(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)制取(qu)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)及生(sheng)活用水(shui)(shui)(shui)(shui)凈(jing)化(hua)處(chu)理(li)(li)(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中(zhong)運用較(jiao)多。 

對于(yu)原(yuan)水是(shi)帶有粒子和(he)膠體(ti)溶(rong)液的(de)地(di)下水的(de)反滲(shen)透(tou)預(yu)備處理(li)設計方案(an) 在預(yu)備處理(li)系統中設定石灰粉(fen)預(yu)變(bian)軟加工(gong)工(gong)藝，并(bing)在澄清器中輔助投小(xiao)量(liang)的(de)鋁(lv)酸(suan)鈉(na)，以(yi)提升(sheng)(sheng)回(hui)應實際效果(guo)。 在多物(wu)(wu)質(zhi)過(guo)慮或細沙過(guo)慮等預(yu)備處理(li)加工(gong)工(gong)藝階段以(yi)前，加設投加助凝劑(ji)/混凝劑(ji)、地(di)基(ji)沉降、回(hui)應等預(yu)備處理(li)組成加工(gong)工(gong)藝。 在反滲(shen)透(tou)膜(mo)分離技(ji)術系統以(yi)前，設定微(wei)濾或超濾膜(mo)預(yu)備處理(li)機器設備，以(yi)除去原(yuan)水中此類污染物(wu)(wu)質(zhi)。 反滲(shen)透(tou)膜(mo)系統不允許有超過(guo)5微(wei)米的(de)顆(ke)粒物(wu)(wu)化學物(wu)(wu)質(zhi)進到，由于(yu)反滲(shen)透(tou)給(gei)水里的(de)顆(ke)粒物(wu)(wu)化學物(wu)(wu)質(zhi)在系統運(yun)作全過(guo)程時會把(ba)反滲(shen)透(tou)膜(mo)的(de)纖薄(bo)天然屏(ping)障(zhang)層滑傷，從而(er)造成膜(mo)系統鹽透(tou)過(guo)率提升(sheng)(sheng)和(he)系統除鹽率降低。 

對于原水帶有(you)病菌及(ji)(ji)微(wei)(wei)生物(wu)菌種(zhong)或系(xi)統(tong)(tong)現有(you)微(wei)(wei)生物(wu)菌種(zhong)滋生的(de)(de)反滲(shen)透(tou)預備(bei)處理(li)系(xi)統(tong)(tong)設(she)(she)(she)計方(fang)案(an)(an) 在反滲(shen)透(tou)給排水系(xi)統(tong)(tong)上中斷投加(jia)(jia)被容許應用的(de)(de)非還原性有(you)機化學農藥，在反滲(shen)透(tou)預備(bei)處理(li)系(xi)統(tong)(tong)中加(jia)(jia)設(she)(she)(she)紫外線加(jia)(jia)工(gong)工(gong)藝(yi)(yi)。 在預備(bei)處理(li)系(xi)統(tong)(tong)中加(jia)(jia)設(she)(she)(she)微(wei)(wei)濾(lv)或超(chao)濾(lv)膜(mo)加(jia)(jia)工(gong)工(gong)藝(yi)(yi)。 提升(sheng)反滲(shen)透(tou)設(she)(she)(she)備(bei)的(de)(de)總(zong)體(ti)設(she)(she)(she)計，降低(di)(di)微(wei)(wei)生物(wu)菌種(zhong)的(de)(de)滋生地區；如在反滲(shen)透(tou)設(she)(she)(she)備(bei)穿管(guan)(guan)設(she)(she)(she)計方(fang)案(an)(an)時，盡量(liang)避免(mian)流水盲(mang)區；再如在設(she)(she)(she)計方(fang)案(an)(an)系(xi)統(tong)(tong)聯(lian)接管(guan)(guan)路時，盡量(liang)避免(mian)在關機時導致一部分管(guan)(guan)路部分存水情況的(de)(de)高-低(di)(di)-高方(fang)式的(de)(de)設(she)(she)(she)計方(fang)案(an)(an)和聯(lian)接；在適度的(de)(de)管(guan)(guan)路低(di)(di)段加(jia)(jia)設(she)(she)(she)排出閥(fa)等。 在解決湖、河(he)及(ji)(ji)海面(mian)時，在預備(bei)處理(li)系(xi)統(tong)(tong)中設(she)(she)(she)計方(fang)案(an)(an)投加(jia)(jia)硫(liu)代(dai)硫(liu)酸鈉（0.1PPM）加(jia)(jia)工(gong)工(gong)藝(yi)(yi)，以操縱(zong)微(wei)(wei)生物(wu)菌種(zhong)、藻類(lei)植物(wu)的(de)(de)生長(chang)發育和環境污染。 一般說(shuo)來，反滲(shen)透(tou)系(xi)統(tong)(tong)規定(ding)原水病菌數量(liang)要操縱(zong)在10000cfu/ml下列(lie)。 

對(dui)于原(yuan)水(shui)(shui)是(shi)稍(shao)弱的(de)(de)(de)大城市(shi)飲用(yong)水(shui)(shui)或備(bei)用(yong)水(shui)(shui)資(zi)(zi)源(yuan)的(de)(de)(de)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)解決系(xi)統(tong)(tong)(tong)(tong)設(she)計方案 在(zai)(zai)(zai)預備(bei)處理(li)(li)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)考(kao)慮(lv)(lv)到設(she)定(ding)(ding)氧(yang)化劑(ji)(ji)(ji)（氫氧(yang)化鈉）計量檢定(ding)(ding)投加(jia)(jia)設(she)備(bei)或設(she)定(ding)(ding)活(huo)性炭過濾(lv)過濾(lv)裝置，用(yong)于清除給(gei)排水(shui)(shui)猶(you)存的(de)(de)(de)隨意(yi)氯(lv)，以避免因為(wei)水(shui)(shui)里還原(yuan)性化學物(wu)質的(de)(de)(de)長時(shi)間具有(you)而造(zao)成(cheng)的(de)(de)(de)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)膜的(de)(de)(de)表層活(huo)性層特性衰退。一(yi)般(ban)說來，在(zai)(zai)(zai)中(zhong)(zhong)(zhong)小型(xing)(xing)(xing)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)都挑選設(she)定(ding)(ding)活(huo)性炭過濾(lv)器器，而在(zai)(zai)(zai)大中(zhong)(zhong)(zhong)型(xing)(xing)(xing)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)一(yi)般(ban)都考(kao)慮(lv)(lv)到在(zai)(zai)(zai)預備(bei)處理(li)(li)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)計量檢定(ding)(ding)投加(jia)(jia)氧(yang)化劑(ji)(ji)(ji)。 在(zai)(zai)(zai)挑選系(xi)統(tong)(tong)(tong)(tong)需投加(jia)(jia)的(de)(de)(de)阻(zu)(zu)垢劑(ji)(ji)(ji)種類時(shi)，應(ying)考(kao)慮(lv)(lv)到所(suo)投加(jia)(jia)的(de)(de)(de)阻(zu)(zu)垢劑(ji)(ji)(ji)與給(gei)排水(shui)(shui)早期投加(jia)(jia)的(de)(de)(de)混(hun)凝(ning)(ning)(ning)劑(ji)(ji)(ji)和(he)助凝(ning)(ning)(ning)劑(ji)(ji)(ji)是(shi)不是(shi)兼(jian)容。 一(yi)般(ban)從在(zai)(zai)(zai)歷史(shi)上看，為(wei)了更好(hao)地確(que)保混(hun)凝(ning)(ning)(ning)土實際效果(guo)，在(zai)(zai)(zai)以前一(yi)般(ban)以地下水(shui)(shui)為(wei)水(shui)(shui)資(zi)(zi)源(yuan)的(de)(de)(de)自來水(shui)(shui)公司和(he)備(bei)用(yong)水(shui)(shui)資(zi)(zi)源(yuan)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)，都采(cai)用(yong)了投加(jia)(jia)正離(li)(li)子混(hun)凝(ning)(ning)(ning)劑(ji)(ji)(ji)，因此，在(zai)(zai)(zai)為(wei)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)系(xi)統(tong)(tong)(tong)(tong)挑選阻(zu)(zu)垢劑(ji)(ji)(ji)時(shi)，一(yi)定(ding)(ding)要(yao)留意(yi)的(de)(de)(de)兼(jian)容模式(shi)，若一(yi)旦原(yuan)水(shui)(shui)在(zai)(zai)(zai)預備(bei)處理(li)(li)全過程(cheng)中(zhong)(zhong)(zhong)應(ying)用(yong)了正離(li)(li)子型(xing)(xing)(xing)混(hun)凝(ning)(ning)(ning)劑(ji)(ji)(ji)，在(zai)(zai)(zai)事(shi)后(hou)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)系(xi)統(tong)(tong)(tong)(tong)中(zhong)(zhong)(zhong)就需要(yao)果(guo)斷(duan)防止(zhi)應(ying)用(yong)陽(yang)離(li)(li)子型(xing)(xing)(xing)阻(zu)(zu)垢劑(ji)(ji)(ji)；若不可(ke)以防止(zhi)，則事(shi)后(hou)加(jia)(jia)工工藝投加(jia)(jia)陽(yang)離(li)(li)子阻(zu)(zu)垢劑(ji)(ji)(ji)就很有(you)可(ke)能與過慮(lv)(lv)水(shui)(shui)里猶(you)存的(de)(de)(de)正離(li)(li)子型(xing)(xing)(xing)混(hun)凝(ning)(ning)(ning)劑(ji)(ji)(ji)產生(sheng)(sheng)反(fan)映，且因為(wei)投加(jia)(jia)而產生(sheng)(sheng)的(de)(de)(de)生(sheng)(sheng)成(cheng)物(wu)會(hui)以膠(jiao)體溶液化學物(wu)質的(de)(de)(de)方式(shi)堆(dui)積在(zai)(zai)(zai)膜表層上，從而對(dui)反(fan)滲(shen)(shen)(shen)透(tou)(tou)(tou)膜產生(sheng)(sheng)環境(jing)污(wu)染。現階段，在(zai)(zai)(zai)銷售市(shi)場(chang)上一(yi)些海外(wai)生(sheng)(sheng)產商一(yi)般(ban)都能給(gei)予與其說阻(zu)(zu)垢劑(ji)(ji)(ji)相兼(jian)容的(de)(de)(de)有(you)機化學混(hun)凝(ning)(ning)(ning)劑(ji)(ji)(ji)，那樣系(xi)統(tong)(tong)(tong)(tong)應(ying)用(yong)起(qi)來就尤其安全性。 

對于原(yuan)水(shui)是處(chu)在(zai)復原(yuan)情(qing)況（氧氣不(bu)足）且帶有二(er)價鐵、錳和氯化(hua)氫及氨鹽的(de)(de)反(fan)滲(shen)(shen)透預(yu)(yu)備處(chu)理(li)系統設計(ji)方案 當(dang)將(jiang)反(fan)滲(shen)(shen)透系統解(jie)決處(chu)在(zai)復原(yuan)情(qing)況、且帶有鐵錳離(li)子的(de)(de)原(yuan)水(shui)時，設計(ji)師更應當(dang)留意避免鐵錳金屬氧化(hua)物產生(sheng)的(de)(de)膜(mo)環境污染。這是由于原(yuan)水(shui)在(zai)歷經預(yu)(yu)備處(chu)理(li)空氣氧化(hua)處(chu)理(li)工藝后-即(ji)當(dang)水(shui)里氧含(han)量(liang)在(zai)5PPM之上時，二(er)價鐵、錳離(li)子會(hui)變(bian)為不(bu)可溶氫氧化(hua)鎳的(de)(de)膠體(ti)溶液，盡管(guan)一般狀況下根據混凝土、地基沉降及物質(zhi)過慮等組(zu)成加(jia)工工藝可將(jiang)此類(lei)污染物質(zhi)除去。 殊不(bu)知，在(zai)具體(ti)的(de)(de)反(fan)滲(shen)(shen)透水(shui)處(chu)理(li)技術(shu)中，鐵在(zai)反(fan)滲(shen)(shen)透膜(mo)系統中污堵的(de)(de)造成實例(li)通常許多 。

很多年的工程項目實踐活動說明，當原水PH值為7.7之上時，就算反滲透給水里鐵含量為0.1PPM、且在SDI檢測值低于5的狀況下，也很有可能產生鐵的膜環境污染難題，這是由于鐵的空氣氧化速度與鐵含量，水里溶氧的濃度值及PH值等要素緊密相關，因此 在預備處理系統中應留意對原水中亞鐵離子含量的操縱。