Iindlela zokucocwa kwamanzi amdaka eSodium Sulfide kunye neZilumkiso

Amanzi amdaka e-sodium sulfide, aveliswa kwiinkqubo ezahlukeneyo zemizi-mveliso ezifana nokuveliswa kweekhemikhali, imigodi, kunye nokuveliswa kwe-pulp, abeka umngcipheko omkhulu wokusingqongileyo kunye nempilo ngenxa yetyhefu ephezulu kunye nokuhlwa. Ukucocwa ngokufanelekileyo la manzi amdaka kubalulekile ukunciphisa iimpembelelo zawo ezingalunganga. Esi sithuba sebhlog siza kwazisa ngokubanzi iindlela zonyango kunye nezilumkiso eziphambili amanzi amdaka e-sodium sulfide.

1. Iindlela zonyango

1.1 Imvula yeMichiza

Imvula yekhemikhali yenye yezona ndlela zixhaphakileyo zokunyanga amanzi amdaka e-sodium sulfide. Kule nkqubo, iityuwa zetsimbi ezifana neetyuwa zensimbi (i-ferrous sulfate, i-ferric chloride) okanye i-salts yobhedu yongezwa kumanzi amdaka. I-sulfide ions kwi-sodium sulfide isabela kunye nee-ion zetsimbi, okubangela ukubunjwa kwe-insoluble metal sulfide precipitates. Emva kokusabela kwemvula, ukuhlukana okuqinileyo-ulwelo kuqhutyelwa nge-sedimentation okanye i-filtration, ngokufanelekileyo ukususa i-sulfide kumanzi amdaka. Le ndlela ilula, ixabisa kakhulu, kwaye ifanelekile ukunyanga amanzi amdaka nge-concentration sulfide ephezulu.

1.2 Unyango lwe-Oxidation

Unyango lwe-oxidation lunokuguqula i-sulfide kumanzi amdaka e-sodium sulfide ibe zizinto ezingenabungozi kangako. Iindlela eziqhelekileyo ze-oxidation ziquka i-air oxidation, i-chlorine oxidation, kunye neenkqubo eziphambili ze-oxidation (AOPs).

• Umoya oxidation: Phambi kwee-catalysts ezifana ne-manganese dioxide, umoya ungeniswa kumanzi amdaka. Phantsi kweemeko ze-aerobic, i-sulfide i-oxidized kwi-elemental sulfur okanye i-sulfate. Le ndlela inamandla kodwa ifuna ixesha elide lokusabela kwaye ifaneleke ngakumbi ukucocwa kwamanzi amdaka anoxinzelelo oluphantsi lwesulfide.

• I-Chlorine Oxidation: I-Chlorine - equkethe i-oxidants efana ne-sodium hypochlorite okanye igesi ye-chlorine isetyenziselwa i-oxidize sulfide. I-Chlorine oxidation iyakhawuleza kwaye iyasebenza, kodwa inokuvelisa izinto ezinobungozi ngeemveliso, ngoko ke ukulawulwa ngononophelo kwedosi kuyimfuneko.

• IiNkqubo eziNqobileyo zoXhoxiso (ii-AOPs): Ii-AOP, ezifana ne-Fenton oxidation kunye ne-ozone oxidation, zivelisa i-hydroxyl radicals esebenzayo kakhulu. Ezi radicals zinokukhupha ngokukhawuleza i-sulfide kwaye ziyitye ngokupheleleyo. Umzekelo, i-Fenton oxidation isebenzisa i-hydrogen peroxide kunye nee-ion ze-ferrous ukuvelisa i-hydroxyl radicals, enokuphatha ngokufanelekileyo amanzi amdaka e-sulfide aphantsi kunye naphezulu.

1.3 Unyango lwebhayoloji

Unyango lwebhayoloji lusebenzisa iimicroorganisms ukuthoba isulfide kumanzi amdaka. Unyango lwebhayoloji yeAnaerobic, olufana ne-anaerobic digestion, lunokuguqula i-sulfide ibe yigesi yehydrogen sulfide phantsi kweemeko ze-anaerobic, enokususwa nge-gas- collection systems. Unyango lwebhayoloji yeAerobic lubandakanya iimicroorganisms ze-aerobic ezenza i-sulfide ibe ne-sulfate njengenxalenye yeenkqubo zabo zemetabolism. Unyango lwebhayoloji luhambelana nokusingqongileyo kwaye luzinzileyo, kodwa lufuna iimeko zokusebenza ezizinzileyo kunye nexesha elide lonyango.

2. Amanyathelo okhuseleko

2.1 Amanyathelo okhuseleko

• Amanzi amdaka e-sodium sulfide anetyhefu kakhulu kwaye anokuyikhupha igesi eyityhefu yehydrogen sulfide xa edibene neeasidi okanye phantsi kweemeko ezithile. Ke ngoko, ngexesha lenkqubo yonyango, abasebenzi kufuneka banxibe izixhobo ezifanelekileyo zokuzikhusela, kubandakanya iimaski zegesi, iiglavu, kunye nempahla ekhuselayo, ukuthintela ukuphefumla kunye nokunxibelelana kwesikhumba ngezinto eziyityhefu.

• Izibonelelo zonyango kufuneka zihlanjululwe kakuhle ukuze kuqinisekiswe ukukhutshwa kwangethuba kwegesi ye-hydrogen sulfide, ukunciphisa umngcipheko wokuqokelelwa kwegesi kunye nokuqhuma. Ukufunyanwa kwegesi rhoqo kwindawo yonyango kubalulekile ukubeka iliso ukuxinana kwe-hydrogen sulfide kunye nezinye iigesi eziyingozi.

2.2 IiNgcebiso zokuSebenza

• Ulawulo lwedosi yeReagent: In imvula yeekhemikhali kwaye unyango nge-oxidation, ulawulo oluchanekileyo lwedosi yee-reagents lubalulekile. Ukungonelanga kwedosi ye-reagent kunokukhokelela kunyango olungaphelelanga, ngelixa idosi egqithisileyo ayinyusi nje iindleko zonyango kodwa inokubangela ungcoliseko lwesibini. Ngokomzekelo, kwimvula yeekhemikhali, ubuninzi beetyuwa zetsimbi bunokubangela ukuba kubekho ii-ion zetsimbi eziseleyo kumanzi acocekileyo.

• Ulawulo lwe-pH: Ixabiso le-pH lamanzi amdaka lichaphazela kakhulu ukusebenza kakuhle konyango. Kwimvula yeekhemikhali, i-metal sulfide eyahluka-hlukeneyo yenza i-precipitates ye-precipitates ngokufanelekileyo ngaphakathi kwee-pH ezikhethekileyo. Kunyango lwe-oxidation, ireyithi yokusabela kwe-oxidation kunye nokwakhiwa kwemveliso nazo zihambelana ngokusondeleyo nexabiso le-pH. Ngoko ke, ukubeka iliso okuqhubekayo kunye nokulungiswa kwexabiso le-pH ngexesha lenkqubo yonyango kuyimfuneko.

• Izixhobo zokusebenza: Ukugcinwa rhoqo kwezixhobo zonyango, njengeempompo, abaxube, kunye neetanki ze-sedimentation, kubalulekile ukuqinisekisa ukusebenza okuqhelekileyo kwenkqubo yokonyango. I-Corrosion - izinto ezixhathisayo kufuneka zisetyenziswe kwizixhobo ezidibanisa namanzi amdaka e-sodium sulfide ukwandisa ubomi benkonzo yezixhobo.

2.3 Imiqathango yoKhuseleko lokusiNgqongileyo

• I-sludge eyenziwa ngexesha lonyango, ngokukodwa kwi-chemical precipitation, iqulethe inani elikhulu le-metal sulfide precipitates kwaye ingaba ne-reagents eseleyo. Olu daka kufuneka lulahlwe ngokufanelekileyo ukuthintela ungcoliseko lwesibini. Inokuthunyelwa kwiindawo zokucocwa kwenkunkuma enobungozi ukuze ilahlwe ngokukhuselekileyo.

• Emva konyango, umgangatho wamanzi amdaka kufuneka ubekwe esweni ngokungqongqo ukuqinisekisa ukuba ayahlangabezana nemigangatho efanelekileyo yesizwe neyendawo yokusingqongileyo. Ukuba umgangatho wamanzi amdaka awuhlangabezani neemfuno, unyango olongezelelweyo okanye uhlengahlengiso lwenkqubo luyafuneka.

Ukuqukumbela, ukunyanga amanzi amdaka e-sodium sulfide kufuna ukuqonda okubanzi kweendlela ezahlukeneyo zonyango kunye nokuthotyelwa okungqongqo kunye nezilumkiso. Ngokukhetha indlela efanelekileyo yokonyango kunye nokulandela iinkqubo zokusebenza ezichanekileyo, sinokunciphisa ngokufanelekileyo impembelelo yokusingqongileyo yamanzi amdaka e-sodium sulfide kunye negalelo ekukhuseleni okusingqongileyo okuzinzileyo.