Uhlalutyo olunokwenzeka lwesicelo kunyango lwamanzi amdaka kwimizi-mveliso
1. Intshayelelo esisiseko
Ungcoliseko lwentsimbi enzima lubhekisa kungcoliseko lokusingqongileyo olubangelwa ziintsimbi ezinzima okanye iikhompawundi zazo. Ikakhulu ibangelwa yimiba yabantu efana nokumbiwa kwemigodi, ukukhutshwa kwerhasi eyinkunkuma, ukunkcenkceshela ugutyulo kunye nokusetyenziswa kweemveliso zentsimbi enzima. Ngokomzekelo, isifo semozulu yamanzi kunye nesifo sentlungu eJapan sibangelwa ungcoliseko lwe-mercury kunye nongcoliseko lwe-cadmium ngokulandelanayo. Iqondo lomonakalo lixhomekeke kugxininiso kunye nohlobo lweekhemikhali zesinyithi esinzima kwindalo, ukutya kunye nezinto eziphilayo. Ungcoliseko lwesinyithi esinzima lubonakaliswa ikakhulu kungcoliseko lwamanzi, kwaye inxalenye yalo ikwiatmosfera kunye nenkunkuma eqinileyo.
Isinyithi esinzima sibhekisa kwiintsimbi ezinobunzima obuthile (ubunzima) obungaphezulu kwe-4 okanye isi-5, kwaye kukho malunga neentlobo ezingama-45 zesinyithi, njengobhedu, ilothe, i-zinc, intsimbi, idayimane, i-nickel, i-vanadium, isilicon, iqhosha, i-titanium, i-manganese. , i-cadmium, i-mercury, i-tungsten, i-molybdenum, igolide, isilivere, njl. Nangona i-manganese, ubhedu, i-zinc kunye nezinye ezinzima isinyithi zizinto zokulandela umkhondo ezifunekayo kwimisebenzi yobomi, uninzi lwesinyithi esinzima njengemekyuri, ilothe, i-cadmium, njl.
Iimethali ezinzima zihlala zikhona kwindalo kugxininiso lwendalo. Nangona kunjalo, ngenxa yokwanda koxhatshazo, ukunyibilikiswa, ukusetyenzwa kunye nokuthengiswa kweentsimbi ezinzima ngabantu, iintsimbi ezininzi ezinzima ezifana nelothe, imekyuri, i-cadmium, i-cobalt, njl. Banga ungcoliseko olumandla lokusingqongileyo. Isinyithi esinzima kwiimeko ezahlukeneyo zeekhemikhali okanye iifom zekhemikhali ziya kuqhubeka, ziqokelelane kwaye zifuduke emva kokungena kokusingqongileyo okanye kwi-ecosystem, zenza umonakalo. Umzekelo, isinyithi esinzima esikhutshwe ngamanzi amdaka sinokuqokelelana kwi-algae kunye nodaka oluphantsi nokuba i-concentration incinci, kwaye ibhengezwe kumphezulu wentlanzi kunye ne-shellfish, ekhokelela ekugxininiseni kokutya, ngaloo ndlela kubangele ungcoliseko. Ngokomzekelo, izifo zamanzi eJapan zibangelwa yi-mercury kumanzi amdaka akhutshwa kwishishini lokuvelisa i-caustic soda, eliguqulwa libe yi-organic mercury ngokusebenzisa i-biological action; omnye umzekelo yintlungu, ebangelwa yi-cadmium ekhutshwe kwi-zinc smelting industry kunye ne-cadmium electroplating industry. Ukuya. Ilothe ekhutshiweyo kumbhobho wemoto ingena kwimo engqongileyo ngokusasazwa kwe-atmospheric kunye nezinye iinkqubo, ezikhokelela ekonyukeni okukhulu koxinzelelo lwe lead, okukhokelela ekufunjweni kwelothe kubantu bale mihla malunga namaxesha angama-100 aphezulu kunowabantu bakudala, kwaye yenzakalise impilo yabantu. .
I-agent ye-Macromolecular heavy metal unyango lwamanzi, i-polymer elulwelo olubomvu-obomvu, inokunxibelelana ngokukhawuleza kunye ne-ion ezahlukeneyo zetsimbi enzima kumanzi amdaka kwiqondo lokushisa, njenge-Hg +, i-Cd2 +, i-Cu2+, i-Pb2 +, i-Mn2 +, i-Ni2 +, i-Zn2 +, i-Cr3 +, njl. ukwenza iityuwa ezidityanisiweyo ezingenayo amanzi kunye nezinga lokususa elingaphezu kwe-99%. Indlela yonyango ilungele kwaye ilula, ixabiso liphantsi, umphumo uyamangalisa, inani le-sludge lincinci, lizinzile, lingenabuthi, kwaye akukho kungcola kwesibini. Ingasetyenziswa ngokubanzi kunyango lwamanzi amdaka kwishishini le-elektroniki, imigodi kunye nokunyibilikisa, ishishini lokulungisa isinyithi, i-desulfurization yeplanti yamandla kunye namanye amashishini. Uluhlu lwe-pH olusebenzayo: 2-7.
2. Indawo yesicelo semveliso
Njengesixhobo esisebenzayo esinamandla se-ion remover, inoluhlu olubanzi lwezicelo. Ingasetyenziselwa phantse onke amanzi amdaka aqulathe ii-ion zentsimbi enzima.
3. Sebenzisa indlela kunye nokuhamba kwenkqubo eqhelekileyo
1. Indlela yokusebenzisa
1. Yongeza kwaye uvuselele
① Yongeza i-ejenti yokucoca amanzi ensimbi enzima ye-polymer ngokuthe ngqo kumanzi amdaka esinyithi ane-ion enzima, ukusabela kwangoko, eyona ndlela ilungileyo kukushukumisa rhoqo nge-10min-amaxesha;
②Ukungaqiniseki kwentsimbi enzima kumanzi amdaka, imifuniselo yaselabhoratri kufuneka isetyenziswe ukumisela ubungakanani bentsimbi enzima eyongeziweyo.
③Kunyango lwamanzi amdaka aqulathe ii-ion zetsimbi enzima ezinezigxina ezahlukeneyo, isixa semathiriyeli ekrwada eyongeziweyo inokulawulwa ngokuzenzekelayo yi-ORP.
2. Izixhobo eziqhelekileyo kunye nenkqubo yezobuchwepheshe
1. Pretreat amanzi 2. Ukuze ufumane i-PH = 2-7, yongeza i-asidi okanye i-alkali ngokusebenzisa umlawuli we-PH 3. Lawula inani lezinto eziluhlaza ezongeziweyo nge-redox regulator 4. I-Flocculant (i-potassium aluminium sulfate) 5. Ixesha lokuhlala yetanki eshukumisayo 10min 76, ixesha lokugcinwa kwetanki ye-agglomeration 10min 7, ipleyiti ethambekileyo itanki yentlenga 8, i-sludge 9, i-reservoir 10, isihluzo se-121, ulawulo lwe-pH lokugqibela lwe-drainage pool 12, ukukhupha amanzi
4. Uhlalutyo lweenzuzo zoqoqosho
Ukuthatha amanzi amdaka e-electroplating njengamanzi amdaka aqhelekileyo esinyithi njengomzekelo, kweli shishini lodwa, iinkampani zesicelo ziya kufezekisa izibonelelo ezinkulu zentlalo nezoqoqosho. Amanzi amdaka e-Electroplating aphuma ikakhulu kumanzi ahlanjululwayo eendawo zokucoca kunye nexabiso elincinci lolwelo lwenkunkuma. Uhlobo, umxholo kunye nohlobo lwesinyithi esinzima kumanzi amdaka ahluka kakhulu kunye neentlobo ezahlukeneyo zemveliso, ikakhulu eziqulathe ii-ion zetsimbi ezinzima ezifana nobhedu, i-chromium, i-zinc, i-cadmium, kunye ne-nickel. . Ngokwezibalo ezingaphelelanga, ukukhutshwa kwamanzi amdaka ngonyaka kwishishini le-electroplating kuphela lidlula iitoni zezigidi ezingama-400.
Unyango lwemichiza yamanzi amdaka e-electroplating lubonwa njengeyona ndlela isebenzayo necokisekileyo. Nangona kunjalo, ukugweba kwiziphumo zeminyaka emininzi, indlela yeekhemikhali ineengxaki ezifana nokusebenza okungazinzanga, ukusebenza kakuhle kwezoqoqosho kunye nefuthe elibi lokusingqongileyo. I-ejenti yokucoca amanzi ye-polymer enzima kakhulu iSonjululwe kakuhle. Le ngxaki ingentla.
4. Uvandlakanyo olubanzi lweprojekthi
1. Inesakhono esinamandla sokunciphisa i-CrV, uluhlu lwe-pH lokunciphisa i-Cr” lubanzi (2 ~ 6), kwaye uninzi lwazo lune-asidi kancinane.
Amanzi amdaka adibeneyo anokuphelisa isidingo sokongeza i-asidi.
2. I-alkaline enamandla, kwaye ixabiso le-pH linokunyuswa ngexesha elifanayo longezwa. Xa i-pH ifikelela kwi-7.0, i-Cr (VI), i-Cr3 +, i-Cu2 +, i-Ni2 +, i-Zn2 +, i-Fe2 +, njl. Amanzi acociweyo ahlangabezana ngokupheleleyo nomgangatho wokukhutshwa kodidi lokuqala lwesizwe
3. Iindleko eziphantsi. Xa kuthelekiswa ne-sodium sulfide yendabuko, iindleko zokucubungula ziyancipha ngaphezu kwe-RMB 0.1 ngetoni.
4. Isantya sokucubungula sikhawuleza, kwaye iprojekthi yokukhusela indalo iyasebenza kakhulu. Imvula kulula ukuyilungisa, ephindwe kabini ngokukhawuleza kwindlela yekalika. Imvula ngaxeshanye ye-F-, P043 kumanzi amdaka
5. Ubungakanani be-sludge buncinci, kuphela isiqingatha sendlela yemveli yokuguguleka kweekhemikhali
6. Akukho ukungcola okwesibini kweentsimbi ezinzima emva kokunyanga, kwaye i-carbonate ye-copper esisiseko yendabuko ilula i-hydrolyze;
7. Ngaphandle kokuvala ingubo yokucoca, inokuqhutyelwa ngokuqhubekayo
Umthombo weli nqaku: USina Aiwen wabelane ngolwazi
Ixesha lokuposa: Nov-29-2021