国产精品高潮呻吟久久AV_少妇又色又紧又爽又刺激视频_中文在线√天堂_国产SUV精品一区二区88

采用膜集成(cheng)技術處理混(hun)合(he)銅鎳(nie)(nie)鉻(ge)工(gong)業廢(fei)(fei)水 ，可以從(cong)廢(fei)(fei)水產(chan)生(sheng)的源頭入手，完全(quan)將鎳(nie)(nie)鉻(ge)工(gong)業廢(fei)(fei)水及金(jin)屬回收，對生(sheng)產(chan)過程(cheng)產(chan)生(sheng)的廢(fei)(fei)水直接(jie)凈化，重(zhong)新(xin)回用，不(bu)斷循環，從(cong)而不(bu)向周(zhou)圍環境排(pai)放銅鎳(nie)(nie)鉻(ge)工(gong)業廢(fei)(fei)水，徹(che)底消除污染，達到“節能(neng)、降耗(hao)、減污、增效”目的，完全(quan)符(fu)合(he)清(qing)潔生(sheng)產(chan)的理念，且 膜分離 工(gong)藝易(yi)于 自(zi)動化控(kong)制(zhi) ，操作(zuo)費用低，無論能(neng)耗(hao)和藥劑消耗(hao)均較低。

表面(mian)處理工(gong)(gong)(gong)業(ye)(ye)(ye)重金(jin)屬廢水(shui)(shui)資源化示范裝置總水(shui)(shui)回(hui)用率80%，銅(tong)鎳鉻回(hui)收率近(jin)100%； 制革工(gong)(gong)(gong)業(ye)(ye)(ye)清潔化生產及廢水(shui)(shui)循環利用示范工(gong)(gong)(gong)程廢水(shui)(shui)回(hui)用率90%以上，制革耗水(shui)(shui)量降低30%；選礦工(gong)(gong)(gong)業(ye)(ye)(ye)萬元工(gong)(gong)(gong)業(ye)(ye)(ye)產值用水(shui)(shui)量減少30%，COD排(pai)放總量（噸(dun)）減少25%；噸(dun)水(shui)(shui)處理綜合成本(ben)小于8元，回(hui)水(shui)(shui)用于工(gong)(gong)(gong)藝(yi)用水(shui)(shui)及鍋爐(lu)給(gei)水(shui)(shui).

中(zhong)和(he) 沉(chen)(chen)淀(dian)(dian)法(fa) 操(cao)作簡單, 是(shi)(shi)常用的(de)(de)(de)處(chu)(chu)(chu)理廢(fei)水(shui)方(fang)法(fa)，但會產生大(da)量的(de)(de)(de)重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)污泥(ni)且效果不穩定(ding)；與中(zhong)和(he)沉(chen)(chen)淀(dian)(dian)法(fa)相比, 硫(liu)化(hua)(hua)(hua)(hua)物(wu) 沉(chen)(chen)淀(dian)(dian)法(fa)的(de)(de)(de)優點(dian)是(shi)(shi)：重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)硫(liu)化(hua)(hua)(hua)(hua)物(wu)溶(rong)(rong)解度比其氫氧(yang)化(hua)(hua)(hua)(hua)物(wu)的(de)(de)(de)溶(rong)(rong)解度更(geng)低，而且反(fan)應(ying)的(de)(de)(de)pH值在7-9之間(jian)(jian)，處(chu)(chu)(chu)理后(hou)的(de)(de)(de)廢(fei)水(shui)一(yi)般不用中(zhong)和(he)。硫(liu)化(hua)(hua)(hua)(hua)物(wu)沉(chen)(chen)淀(dian)(dian)法(fa)的(de)(de)(de)缺點(dian)是(shi)(shi)：硫(liu)化(hua)(hua)(hua)(hua)物(wu)沉(chen)(chen)淀(dian)(dian)物(wu)顆(ke)粒小(xiao)，易(yi)形成膠(jiao)體； 硫(liu)化(hua)(hua)(hua)(hua)物(wu) 沉(chen)(chen)淀(dian)(dian)劑 本身(shen)在水(shui)中(zhong)殘留，遇(yu)酸生成 硫(liu)化(hua)(hua)(hua)(hua)氫氣體 ，產生二次(ci)污染； 鐵氧(yang)體 共沉(chen)(chen)淀(dian)(dian) 可一(yi)次(ci)去除廢(fei)水(shui)中(zhong)多(duo)種(zhong)重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)離(li)子(zi)，形成的(de)(de)(de)沉(chen)(chen)淀(dian)(dian)顆(ke)粒大(da)，容易(yi)分離(li)，顆(ke)粒不會再溶(rong)(rong)，不會產生二次(ci)污染，而且形成的(de)(de)(de)沉(chen)(chen)淀(dian)(dian)物(wu)是(shi)(shi)一(yi)種(zhong)優良的(de)(de)(de) 半導體材(cai)料 ，但是(shi)(shi)這種(zhong)方(fang)法(fa)在操(cao)作過程(cheng)中(zhong)需要加熱到(dao)70℃左右或更(geng)高，并且在空氣中(zhong)慢(man)慢(man)氧(yang)化(hua)(hua)(hua)(hua)，因此操(cao)作時間(jian)(jian)長，消耗能量多(duo)；化(hua)(hua)(hua)(hua)學 氧(yang)化(hua)(hua)(hua)(hua)還(huan)(huan)原(yuan)(yuan)法(fa) 一(yi)般用作廢(fei)水(shui)處(chu)(chu)(chu)理的(de)(de)(de)預處(chu)(chu)(chu)理方(fang)法(fa)使用； 電(dian)(dian)化(hua)(hua)(hua)(hua)學還(huan)(huan)原(yuan)(yuan) 法(fa)是(shi)(shi)在電(dian)(dian)解過程(cheng)中(zhong)，溶(rong)(rong)液與電(dian)(dian)源的(de)(de)(de) 正負極(ji)(ji) 接觸并發(fa)生 氧(yang)化(hua)(hua)(hua)(hua)還(huan)(huan)原(yuan)(yuan)反(fan)應(ying) ，當對 重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)廢(fei)水(shui) 進行(xing)電(dian)(dian)解時，廢(fei)水(shui)中(zhong)的(de)(de)(de)重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)離(li)子(zi)在陰極(ji)(ji)得(de)到(dao)電(dian)(dian)子(zi)而被還(huan)(huan)原(yuan)(yuan)，這些重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)或沉(chen)(chen)淀(dian)(dian)在電(dian)(dian)極(ji)(ji)表面或沉(chen)(chen)淀(dian)(dian)到(dao)反(fan)應(ying)槽底部，從而降(jiang)低廢(fei)水(shui)中(zhong)重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)含(han)量，這種(zhong)方(fang)法(fa)消耗能量大(da)，適合于重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)濃度較高的(de)(de)(de)廢(fei)水(shui)。 吸(xi)(xi)附(fu)法(fa) 是(shi)(shi)應(ying)用多(duo)孔吸(xi)(xi)附(fu)材(cai)料吸(xi)(xi)附(fu)處(chu)(chu)(chu)理廢(fei)水(shui)中(zhong)重(zhong)(zhong)(zhong)金(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)的(de)(de)(de)一(yi)種(zhong)方(fang)法(fa)，傳統 吸(xi)(xi)附(fu)劑 是(shi)(shi) 活性(xing)碳(tan) ，活性(xing)碳(tan)有很強吸(xi)(xi)附(fu)能力，去除率高，但價格貴，應(ying)用受到(dao)限制(zhi)；