Iindlela zokucocwa kwamanzi amdaka eSodium Sulfide kunye neZilumkiso

Amanzi amdaka e-sodium sulfide, aveliswa kwiinkqubo ezahlukeneyo zoshishino ezifana nokuveliswa kweekhemikhali, ukumbiwa kwemigodi, kunye nokuveliswa kwe-pulp, abeka umngcipheko omkhulu kwindalo nakwimpilo ngenxa yobuthi bawo obuphezulu kunye nokubola. Ukunyanga la manzi amdaka ngempumelelo kubalulekile ukunciphisa iimpembelelo zawo ezimbi. Le posi yebhlog izakwazisa ngokupheleleyo iindlela zonyango kunye namanyathelo abalulekileyo okuthintela 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).

• Ukuxinana komoya : Xa kukho ii-catalysts ezifana ne-manganese dioxide, umoya ungeniswa emanzini amdaka. Phantsi kweemeko ze-aerobic, i-sulfide ixutywa ibe yi-elemental sulfur okanye i-sulfate. Le ndlela isebenza kakuhle ngamandla kodwa ifuna ixesha elide lokuphendula kwaye ifanelekile ngakumbi ekunyangweni kwamanzi amdaka anezinga eliphantsi le-sulfide.

• Ukuxinana kweChlorine : Ii-oxidants ezine-chlorine ezifana ne-sodium hypochlorite okanye igesi ye-chlorine zisetyenziselwa ukuxinana kwe-sulfide. Ukuxinana kwe-chlorine kuyakhawuleza kwaye kuyasebenza, kodwa kunokubangela imveliso enobungozi, ngoko ke kufuneka ulawulo olucokisekileyo lwedosi.

• Iinkqubo ze-Advanced Oxidation (AOPs) : Ii-AOP, ezifana ne-Fenton oxidation kunye ne-ozone oxidation, zivelisa ii-hydroxyl radicals ezisabela kakhulu. Ezi radicals zinokukhupha i-sulfide ngokukhawuleza kwaye ziyinyibilikise ngokupheleleyo. Umzekelo, i-Fenton oxidation isebenzisa i-hydrogen peroxide kunye nee-ion ze-ferrous ukuvelisa ii-hydroxyl radicals, ezinokunyanga ngempumelelo zombini amanzi amdaka e-sulfide aphantsi 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 lweMithamo yeReagent : Kwimithamo yamakhemikhali kunye nonyango lwe-oxidation , ulawulo oluchanekileyo lwemithamo yereagents lubalulekile. Umlinganiselo ongonelanga wereagents unokukhokelela kunyango olungaphelelanga, ngelixa umthamo ogqithisileyo unganyusi nje kuphela iindleko zonyango kodwa unokubangela nongcoliseko lwesibini. Umzekelo, kwimithamo yamakhemikhali, inani elikhulu leetyuwa zesinyithi linokubangela ukuba kubekho ii-ion zesinyithi eziseleyo emanzini acociweyo.

• Ulawulo lwe-pH : Ixabiso le-pH lamanzi amdaka lichaphazela kakhulu ukusebenza kakuhle konyango. Kwimvula yamakhemikhali, iiprecipitates ze-metal sulfide ezahlukeneyo zenzeka kakuhle ngaphakathi kwemigangatho ethile ye-pH. Kunyango lwe-oxidation, izinga lokuphendula kwe-oxidation kunye nokwakheka kwemveliso nazo zinxulumene kakhulu nexabiso le-pH. Ke ngoko, kufuneka kujongwe rhoqo kwaye kulungiswe ixabiso le-pH ngexesha lenkqubo yonyango.

• Ukugcinwa kwezixhobo : Ukugcinwa rhoqo kwezixhobo zonyango, ezifana neempompo, ii-mixers, kunye neetanki ze-sedimentation, kubalulekile ukuqinisekisa ukusebenza okuqhelekileyo kwenkqubo yonyango. Izixhobo ezimelana nokugqwala kufuneka zisetyenziswe kwizixhobo ezidibana namanzi amdaka e-sodium sulfide ukuze kwandiswe 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.