Ukuhlaziywa kokusebenziseka kokusetshenziswa ekwelashweni kwamanzi amdaka ezimbonini
1. Isingeniso esiyisisekelo
Ukungcola kwensimbi enamandla kubhekisela ekungcolisweni kwemvelo okubangelwa izinsimbi ezisindayo noma izinto zazo. Okubangelwa kakhulu yizici zabantu ezifana nokumba izimayini, ukukhishwa kwegesi engcolile, ukunisela ngendle kanye nokusetshenziswa kwemikhiqizo yensimbi esindayo. Isibonelo, isifo sezulu samanzi kanye nesifo sobuhlungu eJapane kubangelwa ukungcola kwe-mercury kanye nokungcola kwe-cadmium ngokulandelana. Izinga lomonakalo lincike ekugxilweni kanye nohlobo lwamakhemikhali lwezinsimbi ezisindayo endaweni ezungezile, ekudleni nasezintweni eziphilayo. Ukungcola kwensimbi enamandla kubonakala kakhulu ekungcolisweni kwamanzi, futhi ingxenye yakho isemkhathini kanye nasemfucumfucwini oqinile.
Izinsimbi ezisindayo zibhekisela ezinsimbini ezinobukhulu obuthile (ubude) obukhulu kuno-4 noma u-5, futhi kunezinhlobo ezingaba ngu-45 zezinsimbi, njengethusi, i-lead, i-zinc, insimbi, idayimane, i-nickel, i-vanadium, i-silicon, inkinobho, i-titanium, i-manganese, i-cadmium, i-mercury, i-tungsten, i-molybdenum, igolide, isiliva, njll. Nakuba i-manganese, ithusi, i-zinc nezinye izinsimbi ezisindayo kuyizinto ezidingekayo emisebenzini yokuphila, iningi lezinsimbi ezisindayo njenge-mercury, i-lead, i-cadmium, njll. azidingeki emisebenzini yokuphila, futhi zonke izinsimbi ezisindayo ezingaphezu kwesilinganiso esithile zinobuthi emzimbeni womuntu.
Izinsimbi ezisindayo zivame ukuba khona ngokwemvelo ngamanani emvelo. Kodwa-ke, ngenxa yokwanda kokuxhashazwa, ukuncibilikiswa, ukucubungula kanye nokukhiqizwa kwezinsimbi ezisindayo ngabantu, izinsimbi eziningi ezisindayo ezifana nomthofu, i-mercury, i-cadmium, i-cobalt, njll. zingena emkhathini, emanzini, nasenhlabathini. Zibangela ukungcola okukhulu kwemvelo. Izinsimbi ezisindayo ezimweni ezahlukene zamakhemikhali noma ezinhlotsheni zamakhemikhali zizoqhubeka, ziqoqe futhi zithuthe ngemva kokungena endaweni ezungezile noma endaweni ezungezile, okubangela umonakalo. Isibonelo, izinsimbi ezisindayo ezikhishwa ngamanzi angcolile zingaqongelela odakeni oluphansi noma ngabe ukugcwala kuncane, futhi zimuncwe ebusweni bezinhlanzi ne-shellfish, okuholela ekugcwaleni kokudla, ngaleyo ndlela kubangele ukungcola. Isibonelo, izifo zamanzi eJapane zibangelwa i-mercury emanzini angcolile akhishwa embonini yokukhiqiza i-caustic soda, eguqulwa ibe yi-mercury ephilayo ngesenzo sebhayoloji; esinye isibonelo ubuhlungu, obubangelwa i-cadmium ekhishwa embonini yokuncibilikisa i-zinc kanye nemboni ye-electroplating ye-cadmium. Umthofu okhishwa emthonjeni wezimoto ungena emvelweni ngokusabalala komoya kanye nezinye izinqubo, okuholela ekwandeni okukhulu kokuhlushwa komthofu ebusweni bamanje, okuholela ekumuncweni komthofu kubantu banamuhla cishe ngokuphindwe kayi-100 kunokwabantu basendulo, futhi kulimaze impilo yabantu.
I-macromolecular heavy metal treatment agent, i-polymer ewuketshezi olubomvu onsundu, ingaxhumana ngokushesha nama-ion ahlukahlukene ensimbi esindayo emanzini angcolile ekushiseni kwegumbi, njenge-Hg+, Cd2+, Cu2+, Pb2+, Mn2+, Ni2+, Zn2+, Cr3+, njll. Isabela ekwakheni usawoti ohlanganisiwe ongancibiliki emanzini ngesilinganiso sokususwa esingaphezu kuka-99%. Indlela yokwelapha ilula futhi ilula, izindleko ziphansi, umphumela uyamangalisa, inani le-sludge lincane, lizinzile, alinabo ubuthi, futhi akukho ukungcola kwesibili. Ingasetshenziswa kabanzi ekuphatheni amanzi angcolile embonini ye-elekthronikhi, ezimayini nasekuncibilikiseni, embonini yokucubungula insimbi, ekususeni i-sulfurization yezitshalo zamandla nakwezinye izimboni. Uhla lwe-pH olusebenzayo: 2-7.
2. Inkambu yokusetshenziswa komkhiqizo
Njengesisusa ama-ion esindayo esisebenza kahle kakhulu, inezindlela eziningi zokusebenzisa. Ingasetshenziswa cishe kuwo wonke amanzi angcolile aqukethe ama-ion esindayo esindayo.
3. Sebenzisa indlela kanye nokugeleza kwenqubo okuvamile
1. Indlela yokusebenzisa
1. Engeza bese uvuselela
① Faka i-polymer heavy metal treatment agent ngqo emanzini angcolile aqukethe ama-ion ensimbi esindayo, ukusabela okusheshayo, indlela engcono kakhulu ukuxuba njalo ngemizuzu eyi-10;
②Ukuze kube nokuqina kwensimbi esindayo emanzini angcolile okungaqinisekile, kufanele kusetshenziswe izivivinyo zelebhu ukuthola inani lensimbi esindayo engeziwe.
③Ukuze kuphathwe amanzi angcolile aqukethe ama-ion ensimbi esindayo anezinga elihlukile lokugxila, inani lezinto zokusetshenziswa ezengeziwe lingalawulwa ngokuzenzakalelayo yi-ORP
2. Imishini ejwayelekile kanye nenqubo yezobuchwepheshe
1. Hlunga amanzi kusengaphambili 2. Ukuze uthole i-PH=2-7, engeza i-asidi noma i-alkali ngokusebenzisa i-PH regulator 3. Lawula inani lezinto zokusetshenziswa ezingezwe nge-redox regulator 4. I-Flocculant (i-potassium aluminium sulfate) 5. Isikhathi sokuhlala kwethangi lokuxuba 10min 76, isikhathi sokugcina sethangi le-agglomeration 10min 7, ithangi le-sloping plate sedimentation 8, i-sludge 9, i-reservoir 10, i-filter 121, ukulawula i-pH yokugcina kwechibi lokudonsa amanzi 12, amanzi okukhipha amanzi
4. Ukuhlaziywa kwezinzuzo zezomnotho
Uma sithatha amanzi amdaka asebenzisa i-electroplating njengesibonelo samanzi amdaka asebenzisa insimbi esindayo, kule mboni kuphela, izinkampani ezifaka izicelo zizothola izinzuzo ezinkulu kwezenhlalo nakwezomnotho. Amanzi amdaka asebenzisa i-electroplating avela kakhulu emanzini okuhlanza izingxenye ze-plating kanye nenani elincane lemfucuza yenqubo. Uhlobo, okuqukethwe kanye nesimo sezinsimbi ezisindayo emanzini amdaka kuyahlukahluka kakhulu ngezinhlobo ezahlukene zokukhiqiza, ikakhulukazi eziqukethe ama-ion ensimbi esindayo njengethusi, i-chromium, i-zinc, i-cadmium, kanye ne-nickel. Ngokwezibalo ezingaphelele, ukukhishwa kwamanzi amdaka minyaka yonke embonini ye-electroplating kuphela kudlula amathani ayizigidi ezingu-400.
Ukwelashwa ngamanzi amdaka nge-electroplating kubhekwa njengendlela ephumelela kakhulu nephelele. Kodwa-ke, uma sibheka imiphumela yeminyaka eminingi, indlela yamakhemikhali inezinkinga ezifana nokusebenza okungazinzile, ukusebenza kahle kwezomnotho kanye nomthelela omubi emvelweni. I-polymer heavy metal treatment agent ixazululwe kahle kakhulu. Inkinga engenhla.
4. Ukuhlolwa okuphelele kwephrojekthi
1. Inekhono elinamandla lokunciphisa i-CrV, ububanzi be-pH bokunciphisa i-Cr” bubanzi (2 ~ 6), futhi iningi lazo line-asidi encane
Amanzi angcolile axubile angaqeda isidingo sokwengeza i-asidi.
2. I-alkaline kakhulu, futhi inani le-pH lingandiswa ngesikhathi esifanayo lapho ingezwa khona. Lapho i-pH ifinyelela ku-7.0, i-Cr (VI), i-Cr3+, i-Cu2+, i-Ni2+, i-Zn2+, i-Fe2+, njll. ingafinyelela izinga elijwayelekile, okungukuthi, izinsimbi ezisindayo zingakhuphuka ngenkathi kunciphisa intengo ye-VI. Amanzi aphathwe ahlangabezana ngokugcwele nezinga lokukhishwa kwe-first-class kazwelonke.
3. Izindleko eziphansi. Uma kuqhathaniswa ne-sodium sulfide yendabuko, izindleko zokucubungula zincishiswa ngaphezu kwe-RMB 0.1 ngethani.
4. Isivinini sokucubungula siyashesha, futhi iphrojekthi yokuvikela imvelo isebenza kahle kakhulu. Kulula ukuhlalisa imvula, okushesha kabili kunendlela ye-lime. Ukuhlanza ngasikhathi sinye kwe-F-, P043 emanzini angcolile
5. Inani lodaka lincane, ingxenye kuphela yendlela yendabuko yokukhipha imvula yamakhemikhali
6. Akukho ukungcoliswa kwesibili kwezinsimbi ezisindayo ngemva kokwelashwa, futhi i-carbonate yethusi eyisisekelo yendabuko kulula ukuyifutha;
7. Ngaphandle kokuvala indwangu yokuhlunga, ingacutshungulwa njalo
Umthombo walesi sihloko: uSina Aiwen wabelane ngolwazi
Isikhathi sokuthunyelwe: Novemba-29-2021