Iintlobo ze-2 zezibonelelo ezinokufunyanwa ngeteknoloji ye-nanofiltration

Yintoni nanofiltration?

I-Nanofiltration (NF) yi-membrane e-semi-permeable (i-ultra-thin selective barrier) esetyenziselwa ukucoca ulwelo kuluhlu olubanzi lwamashishini. Ubungakanani bepore yeNanofiltration buphakathi kwe-1 ~ 10 nm, phakathi kwe-osmosis ebuyela umva kunye ne-ultrafiltration, kwaye yifilimu yesibini eshinyeneyo.

Ulwelo lutyhalwa nge-membrane ngoxinzelelo: amasuntswana amancinci kunobubanzi be-nanofiltration membrane aperture aya kudlula, ngelixa amaqhekeza amakhulu kunobubanzi be-nanofiltration membrane aperture aya kubanjwa. Amalungu akanakubanjiswa kuphela kukungabandakanywa kobungakanani, kodwa anokukhetha ukutsala okanye agxothe ungcoliseko oluthile ngokuxhomekeke kwintlawulo okanye ukunxulumana kweekhemikhali, ukubanjiswa ngeziphumo zemichiza ye-membrane.

I-Nanofiltration iphucula umgangatho wamanzi, kwaye isebenzisa amandla amancinci kune-osmosis ye-reverse (RO). Kunyango lwamanzi athile akufuneki ukuba asuse ubutyuwa obuphezulu, i-nanofiltration membranes ingasetyenziswa njengenye indlela esebenzayo ye-membrane ye-RO, enekhono lokususa iibhaktheriya, iintsholongwane, izinto eziphilayo kunye ne-ion ze-bivalent.

I-Nanofiltration yayisetyenziselwa ekuqaleni ukususwa kwe-sulfate kwi-oyile kunye ne-gas industry, kodwa ngoku isetyenziswa kumashishini okucoca amanzi, umzekelo, ukuthambisa amanzi, ukusela amanzi kunye nokunyanga ubuninzi bamanzi amdaka kunye ne-brine. Ngoku kutshanje, i-nanofiltration isetyenziswe kwakhona ukususa ukungcola okuvela kumanzi okusela.

Itekhnoloji ye-Nanofiltration inokuqala ukubuyisela amanzi akumgangatho ophezulu afanelekileyo ukuba asetyenziswe kwakhona, ngokuhambelana nengqikelelo yoqoqosho lwesetyhula, kodwa nangokufumana ezinye izixhobo (ezifana nemithombo yebhayoloji, iiminerali kunye neekhemikhali) ngokuthe ngcembe ifumana ingqalelo kwimarike.

Isodium hydroxide (NaOH)

I-sodium hydroxide (NaOH) yityuwa yealkaline eguquguqukayo etyhola kwaye inyibilikise izinto eziphilayo kunye ne-inorganic. Ngoko ke, isetyenziselwa ukucoca, ukususwa kwamafutha kunye neenkqubo zokuqhawula kumashishini ahlukeneyo.

Ngenxa yokuxinana okuphezulu kwezinto ezingcolileyo kwi-waste caustic soda, ngokuqhelekileyo ayisetyenziswanga kwakhona kwimveliso yezoshishino. Kunoko, ezinye iikhemikhali, ezifana ne-hydrochloric okanye i-sulfuric acid, kufuneka zongezwe ukuze zinciphise i-alkalinity. Nangona kunjalo, ngetekhnoloji ye-nanofiltration, inkunkuma ye-caustic soda inokufunyanwa kwaye isetyenziswe kwakhona ngokususa ukungcola.

Omnye wabathengi abakhulu bengingqi ye-caustic soda nguMzantsi Asia, oneshishini elikhulu lamalaphu. Apha, isisombululo se-caustic soda asisetyenziselwa ukucoca kuphela, kodwa siyinxalenye ephambili yokwenziwa kwe-textile, ngakumbi kwinkqubo yokuxutywa kwe-bleaching apho iphucula amandla, ukukhanya kunye nokudibanisa kwedayi ye-cotton fibers.

Ukusukela ngo-2020, sifumene imibuzo rhoqo malunga ne-nanofiltration membranes kwimarike yase-Asia-mpuma. Ke ngoko, kwakulo nyaka, inkampani yethu yakha owayo umgca wokuvelisa inwebu ye-nanofiltration. Ukuqhuba unxibelelwano lobugcisa kunye namaqela avela kwiimpawu ezidumileyo zehlabathi ezifana neDow, HYDRANAUTICS, Toray, Vontron, njl.

I-HID HNF-8040HF imodeli yethu yokuqala ye-nano membrane, eyaba yimodeli ephambili yokunyusa kwaye yanconywa ngokubanzi ngabasebenzisi kwishishini le-textile.

Isichumiso esisetyenzisiweyo

Iphosphorus, isondlo esiphambili kwizichumisi, iya inqaba, nto leyo iphakamisa inkxalabo malunga nokhuseleko lokutya ixesha elide. Iphosphorus sisixhobo esinesiphelo esivela kwimigodi yephosphate. Ngoovimba bephosphorus yehlabathi bencipha kwaye bevalelwe kwimimandla nganye, amakhonkco obonelelo asemngciphekweni.

Kwangaxeshanye, ukuxinana okugqithisileyo kwesi sondlo sixabisekileyo kuyonakalisa i-ecosystem, kubangela ungcoliseko olumandla kumzimba wamanzi ngenkqubo ye-eutrophication. Ngokubamba kunye nokuphinda kusetyenziswe esi sondlo ukudala isibonelelo sebhayoloji, imingeni emibini inokuqwalaselwa ngaxeshanye: ukhuseleko lokutya kunye nokuthotywa kokusingqongileyo.

Nangona i-nanofiltration ayiyona inkqubo ebalulekileyo yokuveliswa kwesichumisi esisetyenzisiweyo, inokudala umgangatho ophezulu wemveliso ngokususa ukungcola kunye nokugxininisa izondlo kwiijusi zokugaya. Ngendlela ye-coagulation-flocculation, izinto eziluhlaza zinokungcoliswa ngamachiza ashiyekileyo, ngelixa i-nanofiltration igwema le ngxaki ngokuhlukana ngokomzimba nge-membrane kunokuba ikhemikhali. Ukongeza ekudaleni izibonelelo zebhayoloji ezikumgangatho ophezulu kunye nokwenza ingeniso kubasebenzisi bokugqibela, umgangatho wamanzi akhutshiweyo nawo uphuculwe kwaye iindleko zonyango lwe-biosolids zithotyiwe.