izindaba

Ngomkhawulo wokukhishwa "wezinga lokukhishwa kwe-electroplating pollutant discharge" liya ngokuya liqinile, manje, ukwelashwa kwamanzi angcolile ensimbi esindayo sekugxilwe ekunakekelweni okukhulu kwezimboni. Manje amanzi angcolile ensimbi esindayo avame ukuphathwa ahlanganiswe futhi akhululekile, phakathi kwawo, amanzi angcolile ensimbi ayinkimbinkimbi anobuthi obunamandla, ukwelashwa kunzima. Futhi ngenxa ye-biochemistry ephansi yalolu hlobo lwekhwalithi yamanzi, ngakho-ke manje ukwelashwa okuyinhloko ngokomzimba namakhemikhali, izindlela zokwelashwa ezivamile ukusetshenziswa kwe-agent yokuphula isibambiso, i-ejenti yokubamba insimbi esindayo kanye ne-sodium sulfide nokunye ukwelashwa kwamakhemikhali.

I-sodium sulfide inomphumela wokuqhekeka kwesibambiso kanye nemvula ye-sulfide yezinto ezingcolisa insimbi, kanye nenani eliphansi, ngakho imboni yamanje isebenzisa kakhulu i-sodium sulfide ukwelapha amanzi angcolile ensimbi esindayo. Leli phepha lethula ngokuyinhloko ukusetshenziswa kwe-sodium sulfide futhi lengeza izinyathelo, imininingwane imi kanje.

Eqinisweni, isinyathelo sokwengeza se-sodium sulfide sinqunywa ngokuyinhloko ngokusho kwesimo sangempela sesayithi, okulandelayo yizinyathelo ezimbalwa zokusetshenziswa kwenqubo evamile yokuhlanza indle.

1. I-sodium sulfide yengezwa ekugcineni kwethangi elilawulayo. Ngenxa yokuthi i-sodium sulfide iyimvelo ayikwazi ukusetshenziswa ngaphansi kwezimo ze-acidic, ngakho-ke kuyadingeka ukwengeza i-alkali ngaphambi kokusetshenziswa, ukuvimbela ukukhiqizwa kwezinto ezinobuthi neziyingozi, kodwa futhi nokuqinisekisa ukwelashwa okuphumelelayo, nesimo esiyinkimbinkimbi futhi mahhala. ukusabela kwe-ion yensimbi ku-sulfide precipitation.

2. Faka i-sodium sulfide ethangini lokusabela. Uma ku-debugging ensimini, izimo zangempela, i-sodium sulfide ingangezwa echibini lokuphendula eliphukile (i-alkaline), ngoba i-ion yensimbi eyinkimbinkimbi iphukile ibe yi-ion yensimbi yamahhala, ngakho-ke echibini lokusabela ngemva kokuphuka futhi engeza ukwelashwa kwe-sodium sulfide. kuyasiza kakhulu ukuthuthukisa umphumela wokwelapha wezingcolisi zensimbi.

3. Faka i-sodium sulfide ekugcineni kwe-coagulation tank. Ngaphambi kokwelashwa kwe-coagulation, i-sodium sulfide yengezwa ukuze kuncishiswe i-ion yensimbi. Ngenxa yokuthi iningi lama-ion ensimbi selixazululiwe, ukwelashwa okulandelayo kwe-coagulation kungaqhubeka nokwelapha ama-ion ensimbi asele, ukuze izinga lamanzi lihlanzwe kanye nezinga elijwayelekile.