Nemuganho wekuburitsa we "electroplating pollutant discharge standard" zvakanyanya uye zvakanyanya kuomarara, ikozvino, kurapwa kweheavy metal tsvina kwave kutarisisa kukuru kwemaindasitiri. Iye zvino iyo inowanzogadziriswa heavy metal wastewater yakaoma uye yakasununguka mamiriro, pakati payo, yakaoma simbi tsvina ine huturu hwakasimba, kurapwa kwakaoma. Uye nekuda kweiyo yakaderera biochemistry yemhando yemhando yemvura, saka iko zvino kurapwa kukuru kwemuviri nemakemikari, kurapwa kwakajairwa kunoreva kushandiswa kwechibatiso chekutyora, heavy metal capture agent uye sodium sulfide uye mamwe makemikari kurapwa.
Sodium sulfide ine mhedzisiro yekutyora kwechibvumirano uye sulfide kunaya kweanorema esimbi zvinosvibisa, uye mutengo wakaderera, saka indasitiri yazvino iri kunyanya kushandisa sodium sulfide kurapa yakaoma heavy metal tsvina. Iri bepa rinonyanya kusuma kushandiswa kwesodium sulfide uye kuwedzera matanho, iwo maficha ndeaya anotevera.
Kutaura zvazviri, danho rekuwedzera re sodium sulfide rinonyanya kutsanangurwa maererano nemamiriro chaiwo epaiti, zvinotevera matanho mashomanana ekushandiswa kwemaitiro ekugadzirisa tsvina.
1. Sodium sulfide inowedzerwa kumucheto kumashure kwetangi inodzora. Nekuti sodium sulfide hunhu haigone kushandiswa pasi pemamiriro ane acidic, saka zvinodikanwa kuwedzera alkali isati yashandiswa, kuitira kudzivirira kugadzirwa kwechepfu uye zvinokuvadza zvinhu volatilization, asiwo kuve nechokwadi chekurapa kunoshanda, neyakaomeswa nyika uye yakasununguka. state metal ion reaction to sulfide precipitation.
2. Wedzera sodium sulfide mutangi rekuita. Kana mumunda debugging, mamiriro chaiwo, sodium sulfide inogona kuwedzerwa mune yakaputsika mushure (alkaline) mhinduro dziva, nekuti iyo yakaoma simbi ion yakaputsika yave yemahara simbi ions, saka mune yekupindura dziva mushure mekuputsika zvakare wedzera sodium sulfide kurapwa. inonyanya kubatsira kuvandudza maitiro ekurapa kwesimbi inosvibisa.
3. Wedzera sodium sulfide kumucheto kwekutanga kwetangi coagulation. Pamberi pekurapa kwekubatanidza, sodium sulfide inowedzerwa kuti iwedzere maion simbi. Nekuda kwekuti maion akawanda esimbi akagadziriswa, iyo inotevera coagulation kurapwa inogona kuenderera mberi nekurapa yakasara simbi ions, kuitira kuti mhando yemvura icheneswe uye chiyero.
Nguva yekutumira: Jul-25-2023
