Kedu ihe n'ime ihe ise nke reverse osmosis membranes ị na-amaghị?
01
Cellulose acetate akpụkpọ anụ (CA akpụkpọ mpempe akwụkwọ)
Cellulose acetate bụ ihe na-acha ọcha na-adịghị ọcha ma ọ bụ ntụ ntụ ntụ, enweghị isi, adịghị egbu egbu, anụ ọkụ ọkụ, yana hygroscopic dị ukwuu. Ugbu a ọ bụ ihe a na-amụ n'ọtụtụ ebe na-agbanwe agbanwe osmosis. Ọ bụ ezie na acetate cellulose bụ ihe dị mma akpụkpọ anụ, - COOR na agbụ molecular ya na-eme ka ọ dị mfe hydrolyze n'okpuru ọnọdụ okpomọkụ dị elu na acid-base, na alkaline ma ọ bụ acidic hydrolysis nwere ike ime ka ìgwè acetyl kwụsị. Ya mere, iji ihe CA dị ọcha na-adabere na njedebe ụfọdụ.
02
Ihe nkiri aromatic polyamide (PA akpụkpọ anụ mpempe akwụkwọ)
A na-eji polyamides aromatic eme ihe n'ọtụtụ ebe na ụlọ ọrụ akpụkpọ ahụ n'ihi nkwụsi ike anụ ahụ na kemịkalụ ha, iguzogide alkalis siri ike, esters mmanụ, na ihe mgbaze organic, yana ike ọrụ dị mma. Otú ọ dị, n'ihi ebubo ebubo nke akpụkpọ anụ PA na-arụ ọrụ na pH 6-10, ihe ndị dị na mmiri na-adịkarị mfe itinye n'elu akpụkpọ ahụ, na-ebelata ndụ ọrụ ya.
03
Chitosan akpụkpọ anụ (CS membrane mpempe akwụkwọ)
A na-enweta Chitosan (CS) site na iwepu otu acetyl na ụmụ irighiri chitosan. Ọ nwere ụdị isi mmalite dị iche iche, ihe dị mma na-emepụta ihe nkiri na ihe ndị dị ndụ, ọ dịkwa mfe iji kemịkal gbanwee. N'ihi usoro ihe omimi ya, mmiri dị ọcha nke a na-eji na-agbanwe osmosis nwere ike ịmepụta njikọ siri ike na hydrogen na ụmụ irighiri mmiri, na ikike ya iwepụ ion metal alkaline siri ike. Ya mere, ọ dị elu karịa CA membranes na polyamide membranes na a na-ewere ya dị ka ihe akpụkpọ anụ na-ekwe nkwa nke ukwuu, nke natara nlebara anya zuru ụwa ọnụ. Cs reverse osmosis akpụkpọ anụ nwere nnukwu flux na selectivity, ma na-enwe mmetụta mwepụ dị mma na divalent metal salts. N'ihi nguzogide alkali siri ike na nguzogide acid mgbe ị gafechara, akpụkpọ anụ Cs anaghị adị mfe imepụtaghachi microorganisms ma na-ejikarị ya dị ka akpụkpọ anụ osmosis na-agbanwe maka mmiri siri ike dị nro.
04
Polyphenylene reverse osmosis akpụkpọ ahụ
Ihe ndị dị na polyphenylene dị ka polybenzimidazole (PBD) na polyphenylene oxide (PPO) adọtawokwa ndị mmadụ n'ebe nile n'ihi oke okpomọkụ ha na-eguzogide, acid na alkali na-eguzogide, na enwere ike gbanwee iji nweta ihe nkiri kacha mma.
05
Ihe ndị ọzọ mejupụtara osmosis membranes
Ihe mejupụtara akpụkpọ ahụ reverse osmosis bụ ụdị akpụkpọ ahụ na-ejikọta obere oyi akwa nke ihe dị iche iche nwere ọrụ nkewa pụrụ iche na mpempe nkwado porous. Ọ nwere ọnụ ọgụgụ nkewa nke solute dị elu na ntinye mmiri na-abanye n'ime mmiri karịa akpụkpọ anụ agbakwunyere, ya mere ọ nwere òkè ahịa karịa 90%. Ka ọ dị ugbu a, ejirila membranes reverse osmosis composite na mpaghara dị ka petrochemicals, electronics, textiles, light industry, metallurgy, medicine, biotechnology, nri, na nchekwa gburugburu ebe obibi.