2 nau'ikan albarkatun da za a iya dawo dasu ta hanyar fasahar nanofiltration

Menene nanofiltration?

Nanofiltration (NF) wani nau'i ne mai tsaka-tsaki (wani shinge mai zaɓi mai mahimmanci) wanda ake amfani dashi don tace ruwa a cikin masana'antu da yawa. Girman pore nanofiltration yana tsakanin 1 ~ 10 nm, tsakanin juyawa osmosis da ultrafiltration, kuma shine fim na biyu mai yawa.

Ana tura ruwa ta cikin membrane ta matsa lamba: barbashi da ke ƙasa da diamita na buɗewar nanofiltration za su wuce, yayin da barbashi da suka fi girma diamita na buɗewar nanofiltration membrane za a kama su. Barbashi ba kawai za a iya kama su ta hanyar girman keɓancewa ba, amma kuma suna iya zaɓar jan hankali ko tunkuɗe wasu gurɓatattun abubuwa dangane da cajin su ko alaƙar sinadarai, tarko ta tasirin sinadarai na saman membrane.

Nanofiltration yana inganta ingancin ruwa, kuma yana amfani da ƙarancin makamashi fiye da baya osmosis (RO). Don maganin wasu ruwa wanda baya buƙatar cire babban salinity, ana iya amfani da membranes nanofiltration azaman madadin membrane mai tasiri don RO, tare da ikon cire ƙwayoyin cuta, ƙwayoyin cuta, kwayoyin halitta da ions bivalent.

Tun da farko ana amfani da Nanofiltration don kawar da sulfate a cikin masana'antar mai da iskar gas, amma yanzu ana amfani da shi a cikin masana'antar sarrafa ruwa, alal misali, tausasa ruwa, ruwan sha da kuma kula da yawan ruwan sha na masana'antu da brine. Kwanan nan, an kuma yi amfani da nanofiltration don cire gurɓataccen gurɓataccen abu daga ruwan sha.

Fasahar Nanofiltration na iya fara dawo da ruwa mai inganci wanda ya dace da sake amfani da shi, daidai da manufar tattalin arzikin madauwari, amma kuma ta hanyar dawo da wasu albarkatu (kamar albarkatun halittu, ma'adanai da sinadarai) sannu a hankali suna samun kulawa a kasuwa.

Sodium hydroxide (NaOH)

Sodium hydroxide (NaOH) gishiri ne mai cikakken alkaline wanda ke lalatawa da narkar da kayan halitta da na halitta. Saboda haka, ana amfani da shi wajen tsaftacewa, cire mai da kuma cirewa a cikin masana'antu daban-daban.

Saboda yawan gurɓataccen gurɓataccen ruwa a cikin sharar gida na caustic soda, yawanci ba a sake amfani da shi wajen samar da masana'antu. Maimakon haka, wasu sinadarai, irin su hydrochloric ko sulfuric acid, suna buƙatar ƙarawa don kawar da alkalinity. Koyaya, tare da fasahar nanofiltration, za'a iya dawo da soda caustic na sharar gida kuma a sake amfani da su ta hanyar cire datti.

Ɗaya daga cikin manyan masu amfani da soda na yanki shine Kudancin Asiya, wanda ke da manyan masana'antun yadi. Anan, maganin soda ba kawai ana amfani da shi don tsaftacewa ba, har ma yana da mahimmanci na masana'antar yadi, musamman a cikin tsarin bleaching inda yake inganta ƙarfi, haske da rini na zaren auduga.

Tun daga 2020, mun sami sau da yawa tambayoyi don nanofiltration membranes a cikin kasuwar kudu maso gabashin Asiya. Saboda haka, a cikin wannan shekara, mu kamfanin gina nanofiltration membrane samar line. Gudanar da sadarwar fasaha tare da ƙungiyoyi daga shahararrun samfuran duniya kamar Dow, HYDRANAUTICS, Toray, Vontron, da sauransu.

Saukewa: HNF-8040HF shine samfurin mu na farko na nano membrane, wanda ya zama babban samfurin haɓakawa kuma masu amfani da su a masana'antar yadu sun yaba da shi sosai.

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Maimaita taki

Phosphorus, wani muhimmin sinadari mai gina jiki a cikin takin zamani, yana zama karanci, wanda ya haifar da damuwa game da samar da abinci na dogon lokaci. Phosphorus shine iyakataccen albarkatun da ke fitowa daga ma'adinan phosphate. Tare da takin phosphorus na duniya yana raguwa kuma an keɓe shi ga yankuna ɗaya, sarƙoƙi suna da rauni.

A lokaci guda kuma, wuce gona da iri na wannan sinadirai masu daraja yana yin barna ga tsarin halittu, yana haifar da gurɓataccen gurɓataccen ruwa ga jikin ruwa ta hanyar fitar da eutrophiation. Ta hanyar kamawa da sake amfani da wannan sinadari don ƙirƙirar albarkatun halittu, ana iya magance ƙalubale guda biyu a lokaci guda: amincin abinci da lalata muhalli.

Ko da yake nanofiltration ba wani muhimmin tsari ba ne don samar da taki da aka sake yin fa'ida, yana iya ƙirƙirar samfur mai inganci ta hanyar cire ƙazanta da tattara abubuwan gina jiki a cikin ruwan 'ya'yan itace masu narkewa. Tare da hanyar coagulation-flocculation, albarkatun kasa za a iya gurbata su da sauran sinadarai, yayin da nanofiltration ya guje wa wannan matsala ta hanyar rabuwa ta jiki ta hanyar membrane maimakon sunadarai. Baya ga samar da ingantattun albarkatun halittu da samar da riba ga masu amfani da su na karshe, an kuma inganta ingancin ruwan da ake fitarwa da kuma rage farashin maganin biosolids.