Esiane sɛ wɔrehu nsu a wɔnom no ahobammɔ ne akwahosan ho nimdeɛ kɛse nti, reverse osmosis (RO) nsu a wɔde tew ho, esiane wɔn mfiridwuma a etu mpɔn kɛse a wɔde yiyi nsu mu nti, abɛyɛ ade titiriw a afie ne nnwuma nyinaa paw. Saa mfiridwuma yi de honam fam nhwehwɛmu di dwuma de yi nkyene a apete, dade a emu yɛ duru, mmoawa, ne efĩ a ɛwɔ nsu mu fi nsu mu yiye, na ɛma wɔn a wɔde di dwuma no nya nsu a ɛho tew a wɔnom.
Ade titiriw a ɛwɔ reverse osmosis nsu a wɔde tew ho mu ne reverse osmosis membrane, a ne ntini kɛse yɛ microns 0.0001 pɛ, a ɛne onipa ti nhwi mu duru nkyem ɔpepem biako yɛ pɛ. Wɔ nhyɛso ase no, nsu mu nneɛma nketenkete tumi fa saa ntini a ɛyɛ mmerɛw a ɛyɛ fã-ɛtumi fa mu yi mu, bere a efĩ dodow no ara, mmoawa (te sɛ E. coli), ne dade a emu yɛ duru (te sɛ kɔbere, mercury, ne arsenic) kɔ so tra hɔ, na ɛma wonya nsu a emu dɔ tew ho. Nsɔhwɛ mu nsɛm kyerɛ sɛ RO nsuo a wɔde tew ho no taa nya nkyene a wɔyi firi hɔ a ɛboro 95%, a nhwɛsoɔ bi a ɛkorɔn-awieɛ mpo boro 99%, na ɛhwɛ sɛ nsuo a ɛfiri mu ba no yiedie no hyia ɔman no nsuo a wɔnom gyinapɛn.
Sɛ wɔde toto atetesɛm mu activated carbon anaa ultrafiltration mfiridwuma ho a, mfaso a ɛwɔ reverse osmosis so no fi sɛnea etumi tew ho kɛse no so. Sɛ nhwɛso no, bere a ultrafiltration membranes tumi yi nneɛma a ɛsensɛn hɔ ne mmoawa nketenkete bi fi hɔ no, ɛnyɛ nea etu mpɔn wɔ nkyene a ɛnyɛ abɔde a nkwa wom a wɔapete ne molecule efĩ nketenkete paa ho. RO nhyehyɛe ahorow no de, wɔde multi-stage filtration system-a PP cotton a wɔadi kan ayɛ-filtered ne activated carbon filter ka ho di dwuma de siw nneɛma akɛse a mfiase no ano ansa na RO membrane no de ayaresa a ɛyɛ pɛpɛɛpɛ ama, na awiei koraa no ɛma nsu kronkron a ɛfata sɛ wɔnom. Bio nso, wɔtaa de nnɛyi reverse osmosis mfiri hyehyɛ nneɛma a nyansa wom a wɔde hwɛ nneɛma so, te sɛ bere ankasa -bere TDS (total dissolved solids) a wɔde kyerɛ ne filter nkwa nkaebɔ, a ɛma ɛyɛ mmerɛw sɛ wɔde bedi dwuma na ahobammɔ yɛ kɛse bio.
Ɛfata sɛ yɛhyɛ no nsow sɛ bere a reverse osmosis mfiridwuma ma wotumi tew nneɛma ho yiye no, ɛma nsu fĩ fã bi nso ba (mpɛn pii no ɛyɛ 1:1 kosi 1:3). Nanso, ɛdenam nhyɛso pɔmpɛ a wɔayɛ no yiye ne ano aduru a wɔde san nya brine so no, nneɛma a aba foforo no atew nsu a wɔsɛe no so kɛse. Bere tenten mu no, ɛnyɛ sɛ nsu a wɔde tew nsu ho a wɔde reverse osmosis yɛ adwinnade a etu mpɔn a wɔde ko tia efĩ nko na mmom ɛyɛ mfiridwuma mu ade titiriw a ɛma asetra tu mpɔn, na ɛma wonya ahobammɔ a wotumi de ho to so fi abusua akwahosan ho.
