Ukuhlaziywa kokungenzeka kokusetshenziswa kokwelashwa kwamanzi angcolile ezimbonini
1. Isingeniso esiyisisekelo
Ukungcoliswa kwensimbi enamandla kubhekisela ekungcoleni kwemvelo okubangelwa izinsimbi ezisindayo noma izinhlanganisela zazo.Ikakhulukazi okubangelwa izici zabantu ezifana nezimayini, ukukhishwa kwegesi engcolile, ukuchelela ngendle kanye nokusetshenziswa kwemikhiqizo yensimbi enzima.Isibonelo, isifo sesimo sezulu samanzi kanye nesifo sobuhlungu eJapane sibangelwa ukungcoliswa kwe-mercury kanye nokungcola kwe-cadmium ngokulandelanayo.Izinga lokulimala lincike ekugxiliseni nasekufakeni amakhemikhali ezinsimbi ezisindayo endaweni ezungezile, ukudla kanye nezinto eziphilayo.Ukungcoliswa kwensimbi enamandla kubonakala ngokuyinhloko ekungcoleni kwamanzi, futhi ingxenye yakho isemoyeni kanye nemfucumfucu eqinile.
Izinsimbi ezinzima zibhekisela ezinsimbi ezinobukhulu obuthile (ukuminyana) okukhulu kuno-4 noma 5, futhi kunezinhlobo ezingaba ngu-45 zezinsimbi, njengethusi, umthofu, 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 kuyizici zokulandela umkhondo ezidingekayo emisebenzini yokuphila, iningi lezinsimbi ezisindayo njenge-mercury, umthofu, i-cadmium, njll. ezidingekayo emisebenzini yempilo, futhi zonke izinsimbi ezisindayo ezingaphezu kwesilinganiso esithile zinobuthi emzimbeni womuntu.
Izinsimbi ezisindayo ngokuvamile zikhona ngokwemvelo ekugxilweni kwemvelo.Kodwa-ke, ngenxa yokwanda kokuxhashazwa, ukuncibilikiswa, ukucutshungulwa kanye nokukhiqizwa kwezentengiselwano kwezinsimbi ezisindayo ngabantu, izinsimbi eziningi ezinzima ezifana nomthofu, i-mercury, i-cadmium, i-cobalt, njll. zingena emkhathini, emanzini, nasenhlabathini.Banga ukungcoliswa kwemvelo okukhulu.Izinsimbi ezinzima ezimweni zamakhemikhali ezihlukahlukene noma amafomu amakhemikhali azophikelela, anqwabelene futhi afuduke ngemva kokungena endaweni ezungezile noma ku-ecosystem, abangele ukulimala.Isibonelo, izinsimbi ezisindayo ezilahlwa ngamanzi angcolile zinganqwabelana kulwelwe nasodakeni olungaphansi ngisho noma ukugxilisana kuncane, futhi kukhangiswe phezu kwezinhlanzi nezimbaza, okuholela ekugxiliseni kochungechunge lokudla, ngaleyo ndlela kubangele ukungcola.Isibonelo, ukugula kwamanzi eJapane kubangelwa i-mercury emanzini angcolile akhishwa embonini yokukhiqiza i-caustic soda, eguqulwa ibe yi-organic mercury ngokusebenzisa isenzo se-biological;esinye isibonelo ubuhlungu, obubangelwa i-cadmium ekhishwe embonini yokuncibilikisa i-zinc kanye nemboni ye-cadmium electroplating.Kuya.Umthofu okhishwa entuthwini yezimoto ungena endaweni ezungezile ngokusakazwa komoya nezinye izinqubo, okuholela ekwenyukeni okukhulu komthofu wamanje, okuholela ekumunceni komthofu kubantu banamuhla cishe izikhathi eziyi-100 kunowabantu bakudala, futhi kulimaza impilo yabantu. .
I-ejenti yokwelapha amanzi ensimbi esindayo ye-macromolecular, i-polymer ewuketshezi ebomvu ensundu, ingasebenzisana ngokushesha nama-ion ensimbi ahlukahlukene angcolile emanzini angcolile asezingeni lokushisa elivamile, njenge-Hg+, Cd2+, Cu2+, Pb2+, Mn2+, Ni2+, Zn2+, Cr3+, njll. Iyasabela ukwakha usawoti odidiyelwe ongancibiliki emanzini ngenani lokususa elingaphezu kwama-99%.Indlela yokwelapha ilula futhi ilula, izindleko ziphansi, umphumela uyamangalisa, inani le-sludge lincane, lizinzile, alinabuthi, futhi akukho ukungcola kwesibili.Ingasetshenziswa kabanzi ekwelashweni kwamanzi angcolile embonini ye-electronics, izimayini nokuncibilikisa, imboni yokucubungula insimbi, i-power plant desulfurization nezinye izimboni.Ibanga le-pH elisebenzayo: 2-7.
2. Inkambu yohlelo lokusebenza lomkhiqizo
Njengesikhiphi se-ion esindayo esisebenza kahle kakhulu, sinohlu olubanzi lwezinhlelo zokusebenza.Ingasetshenziselwa cishe wonke amanzi angcolile aqukethe ama-ion ensimbi esindayo.
3. Sebenzisa indlela nokugeleza kwenqubo evamile
1. Isetshenziswa kanjani
1. Engeza futhi ugovuze
① Faka i-ejenti yokuhlanza amanzi yensimbi esindayo ye-polymer ngokuqondile emanzini angcolile anensimbi esindayo, ukusabela ngokushesha, indlela engcono kakhulu ukunyakazisa njalo ngemizuzu eyi-10;
②Ukuze uthole ukugxiliswa kwensimbi esindayo okungaqinisekile emanzini angcolile, ukuhlolwa kwaselabhorethri kufanele kusetshenziswe ukuze kutholwe inani lensimbi esindayo engeziwe.
③Ngokwelashwa kwamanzi angcolile aqukethe ama-ion ensimbi anesisindo esihlukile, inani lezinto ezingavuthiwe ezingeziwe zingalawulwa ngokuzenzakalelayo yi-ORP.
2. Imishini ejwayelekile kanye nenqubo yezobuchwepheshe
1. Hlanza amanzi kuqala 2. Ukuze uthole i-PH=2-7, engeza i-asidi noma i-alkali ngesilawuli se-PH 3. Lawula inani lezinto ezingavuthiwe ezingezwe ngesilawuli se-redox 4. I-Flocculant (i-potassium aluminium sulfate) 5. Isikhathi sokuhlala ethangini elinyakazayo 10min 76, isikhathi sokugcina ithangi le-agglomeration 10min 7, ithangi le-sloping plate sedimentation tank 8, udaka 9, ichibi elingu-10, isihlungi 121, ukulawula kwe-pH yokugcina ye-drainage pool 12, amanzi aphumayo
4. Ukuhlaziywa kwezinzuzo zezomnotho
Ukuthatha amanzi angcolile e-electroplating njengamanzi angcolile ensimbi esindayo njengesibonelo, kule mboni kuphela, izinkampani zohlelo lokusebenza zizozuza izinzuzo ezinkulu zenhlalo nezomnotho.Amanzi angcolile e-Electroplating aphuma ikakhulukazi emanzini okugeza ezingxenye zokucwenga kanye nenani elincane le-process waste liquid.Uhlobo, okuqukethwe kanye nohlobo lwezinsimbi ezisindayo emanzini angcolile ziyahlukahluka kakhulu ngezinhlobo ezahlukene zokukhiqiza, ikakhulukazi eziqukethe ama-ion ensimbi esindayo njengethusi, i-chromium, i-zinc, i-cadmium, ne-nickel..Ngokwezibalo ezingaphelele, ukuchithwa kwamanzi angcolile ngonyaka embonini ye-electroplating kuphela kudlula amathani ayizigidi ezingu-400.
Ukwelashwa ngamakhemikhali kwamanzi angcolile e-electroplating kuqashelwa njengendlela ephumelela kakhulu nephelele.Kodwa-ke, uma sibheka emiphumeleni yeminyaka eminingi, indlela yamakhemikhali inezinkinga ezifana nokusebenza okungazinzile, ukusebenza kahle komnotho kanye nomthelela omubi kwezemvelo.I-ejenti yokwelapha amanzi ensimbi ye-polymer Ixazululwe kahle kakhulu.Inkinga engenhla.
4. Ukuhlolwa okuphelele kwephrojekthi
1. Inamandla aqinile okwehlisa i-CrV, i-pH yokunciphisa i-Cr” ibanzi (2~6), futhi iningi layo line-acidic kancane.
Amanzi angcolile axubile angaqeda isidingo sokwengeza i-asidi.
2. Ine-alkaline enamandla, futhi inani le-pH lingakhuphuka ngesikhathi esifanayo lengezwe.Lapho i-pH ifinyelela ku-7.0, i-Cr (VI), i-Cr3+, i-Cu2+, i-Ni2+, i-Zn2+, i-Fe2+, njll. ingafinyelela izinga, okungukuthi, izinsimbi ezisindayo zingancishiswa ngenkathi kunciphisa intengo ye-VI.Amanzi ahlanzekile ahlangabezana ngokugcwele nezinga likazwelonke lokukhishwa kwesigaba sokuqala
3. Izindleko eziphansi.Uma kuqhathaniswa ne-sodium sulfide evamile, izindleko zokucubungula zehliswa ngaphezu kuka-RMB 0.1 ngethani.
4. Ijubane lokucubungula liyashesha, futhi iphrojekthi yokuvikela imvelo isebenza kahle kakhulu.Imvula kulula ukuyixazulula, okushesha ngokuphindwe kabili kunendlela ye-lime.Imvula ngesikhathi esisodwa ye-F-, P043 emanzini angcolile
5. Inani le-sludge lincane, ingxenye kuphela yendlela yemvula yamakhemikhali evamile
6. Akukho ukungcoliswa kwesibili kwezinsimbi ezisindayo ngemva kokwelashwa, futhi i-carbonate yethusi eyisisekelo yendabuko kulula ukuyi-hydrolyze;
7. Ngaphandle kokuvala indwangu yokuhlunga, ingacutshungulwa ngokuqhubekayo
Umthombo walesi sihloko: USina Aiwen wabelane ngolwazi
Isikhathi sokuthumela: Nov-29-2021