Ingabe i-pH inomthelela ekukhishweni kukasawoti emanzini nasesikhathini sokuphila se-reverse osmosis membranes?

Njengenqubo eyinhloko yokuhlunga kumshini wokuhlanza amanzi, okokusebenza kwe-osmosis okuhlehlisayo kunquma ukuthi inani le-pH lamanzi aluhlaza angena kulwelwesi lwe-osmosis elibuyela emuva lizodala umonakalo kulwelwesi. Ngokuvamile, izinto ezihlanganisiwe ze-membrane zivame ukusetshenziselwa ulwelwesi lwe-osmosis ehlehlayo. Uma inani le-pH lingaphakathi kwebanga elicacisiwe lika-2-11, umonakalo nomthelela wevelu ye-pH kulwelwesi ngokwalo kuzoba kuncane.

Ngokuqondene nomthelela we-pH esilinganisweni sokukhishwa kukasawoti emanzini olwelwesi lwe-osmosis ehlehlayo, kunqunywa izici zama-ion ahlukahlukene emanzini athintwa inani le-pH. Lokhu kungenxa ye-asidi, ukubola, kanye nezinga lokushaja kwama-ion ngokwawo, okuyizinto zonke ezingaholela ekwehleni kwezinga lokuphuma kukasawoti kulwelwesi.

Kungabonakala ukuthi i-pH isenomthelela omkhulu ezingeni lokukhipha usawoti kokungcola okuthile. Ngokufanayo, uma izinga lokususwa kwe-CO2 ngolwelwesi lwe-osmosis elibuyela emuva liziro futhi inani le-pH lamanzi aluhlaza linyuswa ukuze kuguqulwe i-CO2 ibe yi-CO32-, ulwelwesi lwe-osmosis olungemuva lungakhipha usawoti ngokuphumelelayo. Kodwa ngalesi sikhathi, ukunakwa okukhethekile kufanele kukhokhwe enkingeni yokukala ye-reverse osmosis membrane.