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Ihe ọmụma nzacha mmiri nke 2020 -2

Ihe nzacha nzacha osmosis akpụkpọ ahụ (RO).

Dị ka o kwesịrị ịdị, ụzọ ntụgharị mmiri si na ntụgharị uche dị ala gaa na ntụgharị uche dị elu, na akpụkpọ anụ osmosis na-atụgharị na-arụ ọrụ zuru oke n'akụkụ elu dị elu iji mee ka mmiri ahụ laghachi azụ n'akụkụ nke ọzọ nke akpụkpọ ahụ. The reverse osmosis membrane nwere ike idowe ihe karịrị 0.0001μm (ie 0.1nm) (gụnyere nje bacteria na nje na organic bekee nwere molekụla arọ karịa 100) na ugbu a kasị nụchara anụcha nkewa akpụkpọ anụ ngwaahịa na ahịa. E jiri ya tụnyere ihe nzacha ndị ọzọ, mmiri na-asọfe n'ime reverse osmosis membrane dị ọcha. Tụkwasị na nke ahụ, akpụkpọ anụ osmosis na-atụgharị na-emepụtakwa mmiri na-adịghị. Akpụkpọ ahụ nke na-adịghị emepụta mmiri mkpofu agaghị abụ akpụkpọ ahụ osmosis na-agbanwe agbanwe.

RO Membrane ahaziri

Ihe nzacha nanofiltration (NF).

A na-ebukarị membranes nanofiltration membranes, yana ebubo na-adịghị mma n'elu, nke nwere ike igbochi cations nwere ihe karịrị valences abụọ na mmiri ma na-ejigide ion monovalent (dị ka ion sodium na potassium ion). Ya mere, nanofiltration membranes na-ejigide ụfọdụ mineral na mmiri. Ihe mmewere.

N'ime mmetọ ọla dị arọ a na-ahụkarị, arsenic dị na mmiri dịka ion arsenic trivalent na ion arsenic pentavalent; chromium kacha dị n'ụdị trivalent na hexavalent ion na okike. Ya mere akpụkpọ ahụ nanofiltration nwekwara ike ihicha ọtụtụ n'ime ọla ndị dị arọ. Ọ nwekwara ike wepụ akụkụ nke calcium na magnesium, n'ihi ya, ọ nwere mmetụta ụfọdụ na ime ka mmiri siri ike dị nro.

NF-Membrane-75gpd

N'otu oge ahụ, nanofiltration membranes nwere ike ibelata organic okwu na mmiri na carcinogens dị ka trihalomethanes eme n'oge chlorination na disinfection nke mmiri ọṅụṅụ.
Nje Virus kacha mara amara nwere dayameta nke 18nm-22nm (data sitere na Wikipedia). E jiri ya tụnyere pore size nke nanofiltration membranes nke 1-2nm, nje bacteria na nje ndị dịtụ buru ibu, otú nanofiltration membranes nwere ike ịdị irè Mwepụ nke nje bacteria na nje adịghị ka ọ siri ike iche n'echiche.

Ụkpụrụ na-arụ ọrụ nke akpụkpọ ahụ nanofiltration bụ akụkụ nke akụkụ ahụ nke akpụkpọ ahụ osmosis na-agbanwe. Nrụgide ọ na-enwe dị ala karịa nke oyi akwa osmosis, ya mere ọ na-emepụta mmiri na-adịghị ala karịa ka oyi akwa osmosis.

Ihe nzacha ihe nzacha nke akpụkpọ ahụ Ultrafiltration (UF).

Ogo oghere nke akpụkpọ ahụ ultrafiltration bụ 0.01μm (10nm). Ọtụtụ ndị na-asachapụ mmiri ga-emesi ike na ndị na-asachapụ mmiri nke na-eji naanị ultrafiltration membranes na-ejigide mineral na mmiri na-adịghị emepụta mmiri mkpofu. Ọfọn, nke ahụ ziri ezi. Mana akpụkpọ anụ ultrafiltration enweghị ike ịchacha ọla dị arọ. Ọ nwere ike ikpochapụ nje bacteria nke ọma (nje bacteria kacha nta mara bụ 0.2μm (200nm) ogologo) yana ụfọdụ nje buru ibu.
N'ebe ụfọdụ, mmiri bụ mmiri siri ike, ya bụ, mmiri nwere nnukwu calcium na magnesium dị elu. Ụdị mmiri a na-atọ ụtọ. Ọ bụrụ na ịchọrọ ịgbanwe ya ka ọ bụrụ mmiri dị nro, onye na-asachapụ mmiri na-eji naanị akpụkpọ ahụ a enweghị ike izute ihe achọrọ.

Ihe nzacha seramiiki
Ihe nzacha seramiiki nwere ike wepụta sedimenti, irighiri ihe na nje bacteria site na obere oghere nke ihe seramiiki ahụ. Ọ bụ ụdị akpụkpọ anụ microfiltration (MF). ion ọlaọcha ndị a na-ejikọta na seramiiki nwere mmetụta nkwụsị. Banyere izi ezi nzacha nke ihe nzacha seramiiki, ihe nzacha seramiiki na-achịkwa okpukpu abụọ nwere nzacha filtration kachasị elu n'ụwa nwere nkezi pore nha nke 0.1μm. Dị ka ọkọlọtọ a si dị, ọ bụ ezie na ihe nzacha seramiiki nwere ike nyochaa nje bacteria ọ bụla, ọ nweghị ike ihicha ọtụtụ nje.

Ceramic n'onwe ya enweghị ike iwepụ ihe na-emetọ kemịkalụ, mana ihe nzacha seramiiki jikọtara ya na carbon arụ ọrụ dị elu nwere ike ibelata mmetọ organic na mmetọ ọla, ma nwee ọrụ nke iwepụ chlorine fọdụrụnụ na ịcha agba. Otú ọ dị, a ga-edochi ụdị ihe nzacha seramiiki a na-emekọ ihe mgbe niile, n'ihi na ọ bụ ezie na elu seramiiki dị mfe ihicha, a ga-egbochi carbon arụ ọrụ jupụtara na seramiiki mgbe oge ejiri ya. Ọ bụrụ na ị na-eche banyere ya, ị ga-amarakwa na adsorption mmetụta dị ntakịrị ma ọ bụ ọ dịghị Up.

Ihe nzacha resin
A na-ejikarị ihe nzacha resin gbanwere mee ka mmiri siri ike dị nro. Enweghị ike ịcha ọla dị arọ.


Oge nzipu: Nov-12-2020

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