Ubuchwepheshe bokwelashwa okungathathi hlangothi kwe-acid washing washing washit wastewater kuyisinyathelo esibalulekile ekususeni izingxenye ze-acidic kusuka kumanzi angcolile. Igcizelela kakhulu izinto ze-acidic ezintweni ezingathathi hlangothi ngokusabela kwamakhemikhali, ngaleyo ndlela kunciphisa ukulimala kwazo emvelweni.

1. Umgomo wokungathathi hlangothi: Ukuphendula okungathathi hlangothi kungukusabela kwamakhemikhali phakathi kwe-acid ne-alkali, kukhiqiza usawoti namanzi. Amanzi a-Acid Whishing Washing Wastewater ngokuvamile aqukethe ama-acid aqinile anjenge-sulfuric acid ne-hydrochloric acid. Ngesikhathi sokwelashwa, inani elifanele lezinto ze-alkaline (ezinjenge-sodium hydroxide, i-calcium hydroxide, noma lime) kudingeka zengezwe ukuze zingezwe kuzinto ze-acidic. Ngemuva kokuphendula, inani le-PH lamanzi angcolile lizoshintshwa ebangeni eliphephile (ngokuvamile 6.5-8.5).

2. Ukukhetha ama-agents amangalisayo: Ama-ejenti ajwayelekile wokungathathi hlangothi afaka phakathi i-Sodium Hydroxide (i-calcium soda), i-calcium hydroxide (i-lime), njll. La ma-agents angathathi hlangothi athola kabusha kanye nomnotho. I-Sodium Hydroxide isabela ngokushesha, kepha ukusebenza ngokucophelela kuyadingeka ukugwema amagwebu ngokweqile kanye nokuqhekeka; I-calcium hydroxide isabela kancane, kepha ingakha i-precipitate ngemuva kokwelashwa, okulungele ukususwa okwalandela.

3. Ukulawulwa kwenqubo yokungathathi hlangothi: Ngesikhathi senqubo yokungathathi hlangothi, kuyadingeka ukuqapha inani le-PH ye-Wastewater ngesikhathi sangempela ukuze kuqinisekiswe isilinganiso esifanele se-acid-basesise. Ukusetshenziswa kohlelo lokulawula okuzenzakalelayo kungafinyelela i-dosing eqondile futhi kugwemeke izimo ezedlule noma ukuntuleka. Ngaphezu kwalokho, ukushisa kuzodedelwa ngesikhathi senqubo yokusabela, futhi imikhumbi efanelekile yokuphendula kufanele ibhekwe ukugwema izinga lokushisa ngokweqile.

I-4. Ukwelashwa okulandelayo: Ngemuva kokungathathi hlangothi, amanzi angcolile angaqukatha ama-solids amisiwe kanye nama-ion esindayo. Ngalesi sikhathi, ezinye izindlela zokwelashwa ezinjengokudilizwa kanye ne-filltration zidinga ukuhlanganiswa ukuze kuqhutshekwe nokususa ukungcola okuseleyo futhi kuqinisekiswe ukuthi ikhwalithi ye-affleent ihlangana namazinga ezemvelo.

Ngokusebenzisa ubuchwepheshe bokwelashwa okungathathi hlangothi okusebenzayo, amanzi ahlanza ama-acid wastewas angalashwa ngokuphepha, anciphise umthelela wawo emvelweni futhi athuthukise ukuthuthukiswa okuzinzile kokukhiqizwa kwezimboni.