2 izinhlobo zezinsiza ezingatholwa ngobuchwepheshe be-nanofiltration

Iyini i-nanofiltration?

I-Nanofiltration (NF) iwulwelwesi olungena kancane (isithiyo esikhethayo esincanyana kakhulu) esisetshenziselwa ukuhlunga uketshezi ezinhlobonhlobo zezimboni. I-Nanofiltration pore size iphakathi kuka-1~10 nm, phakathi kwe-osmosis ehlehlayo kanye ne-ultrafiltration, futhi iyifilimu yesibili eminyene.

Uketshezi luphushwa kulwelwesi ngengcindezi: izinhlayiya ezincane kunobubanzi bembobo yolwelwesi lwe-nanofiltration zizodlula, kuyilapho izinhlayiya ezinkulu kunobubanzi bembobo ye-nanofiltration izovaleleka. Izinhlayiya azikwazi ukuvaleleka kuphela ngokukhishwa kosayizi, kodwa zingaheha noma zixoshe ukungcola okuthile kuye ngokushaja kwazo noma ukuhambisana kwamakhemikhali, ukubanjwa ngemiphumela yamakhemikhali engaphezulu kolwelwesi.

I-Nanofiltration ithuthukisa ikhwalithi yamanzi, futhi isebenzisa amandla amancane kune-reverse osmosis (RO). Ukuze ukwelashwa kwamanzi athile angadingi ukususa usawoti omningi, ulwelwesi lwe-nanofiltration lungasetshenziswa njengenye indlela ephumelelayo ye-RO, enekhono lokususa amabhaktheriya, amagciwane, izinto eziphilayo kanye nama-ion abivalent.

I-Nanofiltration ekuqaleni yayisetshenziselwa ukukhishwa kwe-sulfate embonini kawoyela negesi, kodwa manje isetshenziswa embonini yokuhlanza amanzi, isibonelo, ukuthambisa amanzi, amanzi okuphuza nokwelapha amanzi amaningi angcolile ezimbonini kanye ne-brine. Muva nje, i-nanofiltration nayo isetshenziselwe ukususa ukungcola okuvela emanzini okuphuza.

Ubuchwepheshe be-Nanofiltration bungakwazi kuqala ukubuyisela amanzi ekhwalithi ephezulu afanele ukusetshenziswa kabusha, ngokuhambisana nomqondo womnotho oyindilinga, kodwa futhi ngokuthola ezinye izinsiza (njengemithombo yebhayoloji, amaminerali namakhemikhali) kancane kancane zithola ukunakwa emakethe.

I-sodium hydroxide (NaOH)

I-sodium hydroxide (NaOH) iwusawoti we-alkaline onemisebenzi eminingi ogqwala futhi uncibilikise izinto eziphilayo nezingaphili. Ngakho-ke, isetshenziselwa ukuhlanza, ukususwa kwamafutha kanye nezinqubo zokuhlubula ezimbonini ezihlukahlukene.

Ngenxa yokugcwala okuphezulu kokungcola kudoti caustic soda, ngokuvamile ayisetshenziswa futhi ekukhiqizweni kwezimboni. Esikhundleni salokho, amanye amakhemikhali, njenge-hydrochloric noma i-sulfuric acid, adinga ukungezwa ukuze anciphise i-alkalinity. Kodwa-ke, ngobuchwepheshe be-nanofiltration, i-waste caustic soda ingatholwa futhi isetshenziswe kabusha ngokususa ukungcola.

Omunye wabathengi abakhulu besifunda be-caustic soda yiNingizimu Asia, enemboni enkulu yezindwangu. Lapha, isixazululo se-caustic soda asisetshenziselwa ukuhlanza kuphela, kodwa futhi siyingxenye ebalulekile yokukhiqiza izindwangu, ikakhulukazi enqubweni yokuxubha lapho kuthuthukisa amandla, ukukhanya kanye nokudaya ukuhambisana kwezintambo zikakotini.

Kusukela ngo-2020, sithole imibuzo evame kakhulu yolwelwesi lwe-nanofiltration emakethe yaseNingizimu-mpumalanga ye-Asia. Ngakho-ke, ngawo lowo nyaka, inkampani yethu yazakhela owayo umugqa wokukhiqiza ulwelwesi lwe-nanofiltration. Yenza ukuxhumana kwezobuchwepheshe namaqembu avela kumikhiqizo edumile emhlabeni jikelele njenge-Dow, HYDRANAUTICS, Toray, Vontron, njll.

I-HID HNF-8040HF iyimodeli yethu yokuqala ye-nano membrane, eyaba imodeli eyinhloko yokuphromotha futhi yanconywa kakhulu abasebenzisi embonini yendwangu.

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Umanyolo ogaywe kabusha

I-Phosphorus, isakhi esibalulekile kumanyolo, siyancipha, okwenza kube nokukhathazeka mayelana nokuvikeleka kokudla isikhathi eside. I-Phosphorus iyinsiza enomkhawulo evela ezimayini ze-phosphate. Njengoba imithombo ye-phosphorus yomhlaba wonke iyancipha futhi ivalelwe ezindaweni ngazinye, amaketanga okuhlinzeka asengozini.

Ngesikhathi esifanayo, ukugcwala ngokweqile kwalesi sakhi esiyigugu kudala umonakalo esimisweni semvelo, kubangela ukungcoliswa okukhulu emzimbeni wamanzi ngenqubo ye-eutrophication. Ngokuthwebula kanye nokugaywa kabusha kwalesi sakhi somzimba ukuze kwakhiwe insiza yebhayoloji, izinselele ezimbili zingaxazululwa ngesikhathi esisodwa: ukuphepha kokudla kanye nokucekelwa phansi kwemvelo.

Nakuba i-nanofiltration ingeyona inqubo ebalulekile yokukhiqiza kabusha umanyolo, ingakha umkhiqizo wekhwalithi ephezulu ngokususa ukungcola nokugxilisa imisoco kumajusi okugaya ukudla. Ngendlela ye-coagulation-flocculation, impahla eluhlaza ingangcoliswa ngamakhemikhali asele, kuyilapho i-nanofiltration igwema le nkinga ngokuhlukanisa ngokomzimba ngokusebenzisa ulwelwesi kunokuba ngamakhemikhali. Ukwengeza ekudaleni izinsiza zebhayoloji ezisezingeni eliphezulu kanye nokwenza inzuzo kubasebenzisi bokugcina, izinga lamanzi akhishiwe nalo selithuthukisiwe futhi nezindleko zokwelashwa ngama-biosolids zehlisiwe.