Lub tshuab electroplating ntawm hluav taws xob cua sov raj yog txiav tawm los ntawm kev kho peb cov khib nyiab

Lub tshuab electroplating ntawm hluav taws xob cua sov raj yog txiav tawm los ntawm kev kho peb cov khib nyiab

Disjunction ntawm kev paub

(1) Yuan Shipu ntseeg hais tias muaj qhov tshwm sim tsis zoo nyob rau hauv kev lag luam electroplating: hais txog cov qauv kev paub, cov txheej txheem thev naus laus zis raug txiav tawm los ntawm kev kho peb cov khib nyiab, thiab tsis muaj ntau lub tsev kawm ntawv sib xyaw uas sib haum nrog ob. Ntawm ib sab, cov neeg koom nrog cov txheej txheem thev naus laus zis tsis paub txog kev kho peb qhov pov tseg, thiab txawm tias tsis xav txog qhov tsim nyog tso dej pov tseg raws li nws qhov zoo thaum tsim cov txheej txheem txheej txheem, uas ua rau cov nqi siab thiab nyuaj rau kev kho cov dej khib nyiab sib xyaw. ; Ntawm qhov tod tes, cov neeg ua haujlwm tshwj xeeb hauv kev kho peb cov khib nyiab tsis paub txog cov txheej txheem electroplating thiab tsis to taub qhov nyuaj ntawm electroplating peb cov khib nyiab. Lawv tsuas yog hloov pauv thiab siv txoj hauv kev muaj nyob rau hauv lwm qhov kev lag luam. Qee lub tuam txhab engineering txawm tias txhob txwm los yog tsis txhob txwm tshaj tawm qhov zoo ntawm qee cov thev naus laus zis txhawm rau txhawb lawv lub npe hu ua cov thev naus laus zis siab heev, thaum txhob txwm tsis quav ntsej txog qhov tsis txaus ntawm cov thev naus laus zis nws tus kheej [17]. Lub xeev tsis noj qab haus huv no tau ua rau muaj kev puas tsuaj loj thiab kev lag luam poob, ua rau muaj kuab paug ib puag ncig loj. Qhov nyuaj ntawm kev kho dej khib nyiab yog nyob rau hauv qhov tseeb tias txhua tsob nroj electroplating muaj cov txheej txheem sib txawv, emissions, cov ntsiab lus ntawm cov khoom yuav raug tshem tawm, thiab qhov chaw, uas tsis tuaj yeem kho hauv ib hom kev sib koom ua ke. Hloov chaw, yuav tsum muaj cov neeg uas nkag siab txog cov txheej txheem thiab cov txheej txheem kev kho mob thiab cov cuab yeej siv txhawm rau ua tiav cov hom phiaj ntawm kev txuag nyiaj, ua tiav cov txiaj ntsig zoo, thiab ua tiav cov txiaj ntsig zoo.

(2) Cov tsoos electroplating ntau lawm units, electroplating additive kev loj hlob thiab ntau lawm units, thiab electroplating wastewater kho mob tsim thiab kev khiav hauj lwm chav tsev feem ntau yog ywj siab thiab ywj siab, uas objectively ua rau tsis muaj peev xwm los xyuas kom meej ruaj khov thiab qauv ntawm electroplating wastewater. Tshwj xeeb tshaj yog rau cov chaw tsim khoom ntawm electroplating additives, lawv feem ntau tsis kam qhia qhov muaj pes tsawg leeg thiab cov khoom ntawm cov tshuaj nyob rau hauv thaj tsam ntawm kev lag luam thiab kev paub tsis meej, thiab txawm tias txhob txwm dag ntxias cov neeg siv. Cov tshuaj chloride raws li trivalent chromium plating technology tau tawm tswv yim tam sim no muaj ntau cov organic complexing agents (txawm hais tias lawv cov complexing muaj peev xwm kuj tsis muaj zog) thiab ammonia nitrogen nyob rau hauv cov muaj pes tsawg leeg ntawm lub tank tov. Nyob rau hauv cov nqe lus ntawm txheej kev ua tau zoo, kev kho dej khib nyiab, kev nyuaj, thiab ib puag ncig cov txiaj ntsig, nws tsis zoo tshaj rau cov txheej txheem ib txwm muaj. Cov tuam txhab ntxiv tau thov tias ntev npaum li alkali ntxiv rau cov hlau hnyav hnyav, lawv dig muag hais txog kev hloov cov pa phem hnyav hexavalent chromium Kev siv trivalent chromium, uas muaj toxicity ntawm 1 feem pua ​​​​ntawm hexavalent chromium, txo cov ntsiab lus ntawm cov hlau hnyav los ntawm ob peb zaug. ; Nws tuaj yeem txhim kho kev ua haujlwm tam sim no thiab txuag hluav taws xob, tsis hais txog qhov nyuaj ntawm kev kho dej khib nyiab los ntawm kev siv ntau tus neeg ua haujlwm complexing, thiab kev pheej hmoo ntawm eutrophication ntawm cov dej hauv lub cev los ntawm qhov muaj cov ntsev ntau ntawm ammonia.

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