nkhani

Ndi malire otulutsa a "electroplating polutant discharge standard" akuchulukirachulukira, tsopano, chithandizo chamadzi otayira zitsulo zolemera chakhala cholinga chachikulu chamakampani. Tsopano nthawi zambiri ankachitira heavy metal madzi zinyalala complexed ndi ufulu boma, amene, complexed zitsulo zinyalala ali amphamvu kawopsedwe, mankhwala ndi zovuta. Ndipo chifukwa cha otsika biochemistry a mtundu uwu wa khalidwe madzi, kotero tsopano chachikulu thupi ndi mankhwala mankhwala, wamba mankhwala njira ndi ntchito chikole kuswa wothandizila, heavy metal kugwidwa wothandizila ndi sodium sulfide ndi mankhwala mankhwala.

Sodium sulfide ali ndi zotsatira za chikole kuswa ndi sulfide mpweya wa heavy metal zoipitsa, ndi mtengo wotsika, kotero makampani panopa kwambiri ntchito sodium sulfide kuchitira zovuta heavy metal zinyalala. Pepalali makamaka limayambitsa kugwiritsa ntchito sodium sulfide ndikuwonjezera masitepe, tsatanetsatane ndi motere.

M'malo mwake, gawo lowonjezera la sodium sulfide limatsimikiziridwa molingana ndi momwe zilili pamalowo, zotsatirazi ndi njira zingapo zogwiritsira ntchito njira yochiritsira yachimbudzi.

1. Sodium sulfide imawonjezeredwa kumapeto kwa thanki yolamulira. Chifukwa sodium sulfide ndi chikhalidwe sangathe kugwiritsidwa ntchito pansi zinthu acidic, choncho m`pofunika kuwonjezera zamchere pamaso ntchito, pofuna kupewa kupanga poizoni ndi zoipa zinthu volatilization, komanso kuonetsetsa kuti mankhwala othandiza, ndi boma zovuta ndi ufulu. state metal ion reaction to sulfide precipitation.

2. Onjezani sodium sulfide mu thanki yochitira. Ngati m'munda debugging, zinthu zenizeni, sodium sulfide akhoza kuwonjezeredwa mu wosweka pambuyo (zamchere) anachita dziwe, chifukwa complexation zitsulo ayoni wakhala wosweka kukhala ufulu zitsulo ayoni, kotero mu anachita dziwe pambuyo wosweka kachiwiri kuwonjezera sodium sulfide mankhwala. ndi zothandiza kwambiri kusintha mankhwala zotsatira za zitsulo zoipitsa.

3. Onjezani sodium sulfide kumapeto kwa thanki yolumikizira. Pamaso pa coagulation mankhwala, sodium sulfide anawonjezera kuti precipitate zitsulo ayoni. Chifukwa ma ion ambiri achitsulo adakhazikika, chithandizo chotsatira cha coagulation chimatha kuchitiranso ma ayoni otsalira achitsulo, kuti madziwo athe kuyeretsedwa komanso muyezo.