Zeziphi Iindidi zeearhente zokucocwa kwamanzi?

Iiarhente zokucocwa kwamanzi zibhekisa kwiikhemikhali ezongeziweyo ngexesha lokucocwa kwamanzi ukuze zisuse uninzi lwezinto eziyingozi emanzini (ezinje ngezinto ezidliwayo, ii-ion zetsimbi, ubumdaka kunye ne-microorganisms, njl.njl.) kwaye zifumane amanzi e-civil okanye amashishini ahlangabezana neemfuno. Iiarhente zokunyanga amanzi ziludidi olubalulekileyo lweemveliso zeekhemikhali ezintle kwaye zineenkcukacha eziqinileyo. Ii-agent ezahlukeneyo zokunyanga amanzi zifunekayo kwiinjongo ezahlukeneyo kunye nezinto zonyango.

Intshayelelo:

Umenzeli wokucoca amanzi ligama eliqhelekileyo leearhente zeekhemikhali ezisetyenziselwa ukucocwa kwamanzi, ezisetyenziswa kakhulu kumacandelo oshishino afana nepetroleum, ishishini lemichiza, isinyithi, uthutho, ishishini lokukhanya, kunye namalaphu. Iiarhente zokunyanga amanzi ziquka i-corrosion inhibitors, i-scale inhibitors, i-bactericides, i-flocculants, i-purifiers, i-agent yokucoca, i-pre-filming agents, njl. Kwizicelo eziphathekayo, ii-agent zokucoca amanzi kunye neefomyula ezixutywe zihlala zisetyenziswa, okanye ii-agent ezahlukeneyo zokucoca amanzi zisetyenziswa ngokudibeneyo. Ngoko ke, kuyimfuneko ukunikela ingqalelo kwi-antagonism phakathi kwamacandelo ngenxa yokudibanisa okungafanelekanga, okunciphisa okanye ukulahlekelwa yimpembelelo, kunye nokusebenzisa ngokupheleleyo umphumo we-synergistic (umphumo we-synergistic oveliswa xa ama-agent amaninzi ahlala kunye) ukwandisa umphumo. Ukongeza, uninzi lweenkqubo zokucocwa kwamanzi ziinkqubo ezivulekileyo ezinomthamo othile wokukhutshwa. Xa uzisebenzisa, impembelelo yee-arhente ezahlukeneyo zokunyanga amanzi kwindawo kufuneka ziqwalaselwe. Ii-arhente zokunyanga amanzi eziqhelekileyo ziquka: i-flocculants, i-ferrous sulfate heptahydrate, iityuwa ze-polyferric, i-calcium hydroxide, i-ferric chloride hexahydrate, i-bactericides kunye ne-algaecides, i-chlorine dioxide, i-scale inhibitors kunye ne-corrosion inhibitors, i-polyacrylamide (i-cationic, i-anionic, i-polyminionic polyamide), i-ferrous chloride, i-ferrous sulfate, njl.

 

I-Corrosion inhibitors
Iklasi yeekhemikhali ezinokuthintela okanye zicothise ukubola kwezinto zetsimbi okanye izixhobo ngamanzi emva kokuba zongezwa kumanzi kwiindawo ezifanelekileyo kunye neefom. Baneempawu zesiphumo esihle, idosi ephantsi, kunye nokusetyenziswa okulula. Kukho iintlobo ezininzi kunye neentlobo ze-corrosion inhibitors. Ngokohlobo lwee-compounds zabo, zinokwahlulwa zibe yi-inorganic corrosion inhibitors kunye ne-organic corrosion inhibitors. Ngokumalunga nokuba i-reaction abayivimbelayo yi-anodic reaction, i-cathodic reaction, okanye zombini, inokwahlulwa ibe yi-anodic corrosion inhibitors, i-cathodic corrosion inhibitors, okanye i-mixed corrosion inhibitors. Ii-Corrosion inhibitors zinokwahlulwa zibe luhlobo lwefilimu ye-passivation, uhlobo lwefilimu yemvula, kunye nodidi lwefilimu ye-adsorption ngokomatshini wokwenza ifilimu ekhuselayo kumphezulu wesinyithi. Ngokuqhelekileyo i-passivation film type corrosion inhibitors esetyenziswayo kunyango lwamanzi ibandakanya i-chromates, i-nitrites, i-molybdates, njl.; esetyenziswa ngokuqhelekileyo ifilimu yemvula uhlobo corrosion inhibitors ziquka polyphosphates, ityuwa zinc, njl.; ezisetyenziswa ngokuqhelekileyo ifilimu adsorption uhlobo corrosion inhibitors ziquka organic amines, njl.
Ukuchithachitha
I-dispersant yokuqala yesikali ye-inhibitor yayiyi-polyacrylic acid (i-sodium), enomlinganiselo omhle wothintelo ngokuchasene nesikali se-calcium carbonate, kodwa inefuthe eliphantsi kakhulu elithintelayo ekufakweni kwe-calcium phosphate.

 

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