Nei Industrial RO Membrane Dzichirasikirwa Nekushanda - uye Maitiro Ekuita Kuti Dzigare Kwenguva Refu

Vane Mhosva Dzakakosha: Nei Kushanda Kuchiderera

Matanda eRO emumaindasitiri anogara achirwiswa nezvinosvibisa mvura yemumaindasitiri. Kuderera kwekushanduka kwemvura uye kurambwa kwemunyu kunowanzo dzokera kumashure kune mashoma mashandiro emuviri nemakemikari.

Kusvibisa kweColloidal uye Organiczvichida ndiyo inonyanya kukonzera musoro. Zvidimbu zvakasungirirwa nezvinhu zvakasikwa zvinoungana pamusoro peganda, zvichigadzira chikamu chekeke chinodzivisa kuyerera kwemvura. Tsvagiridzo pamusoro pemvura inoraswa nemakemikari emarasha, chikafu chinozivikanwa nekunetsa, inoratidza kuti zvinhu zvinosvibisa organic—kunyanya zvikamu zvinosvibisa hydrophobic uye fluorescent organics—ndizvo zvinonyanya kukonzera kudzikira kweflux. Kana zvinhu izvi zvakanamatira pamusoro pepolyamide, zvinogadzira hwaro hunonamira hwekusvibiswa kwakawanda.

Kukura uye Kusvibisa Zvisizvokunoitika kana munyu unonyunguduka zvishoma uchipfuura miganhu yawo yekunyunguduka murwizi rwakazara. Calcium carbonate necalcium sulfate zvinowanzo kukonzera matambudziko, asi kusvibiswa kwesilicon kuri kuonekwa senjodzi huru mukudzokororwa kwemvura yakasviba mumaindasitiri. Kugadziriswa kwesilica pamusoro pemembrane kunogona kutungamira mukurasikirwa kweflux isingadzoreki uye ndicho chinhu chikuru chinoita kuti membrane isvike pakuguma kwehupenyu. Izvi zvinonyanya kunetsa mumasisitimu anopora zvakanyanya uko silica inova yakawandisa.

Kuora Kwemakemikari uye Oxidationinorwisa layer ye polyamide ye membrane pachayo. Chlorine, inowanzoshandiswa mukuuraya utachiona, isimba guru rinogona kupatsanura ma amide bonds, richiparadza zvachose kugona kwemunyu. Mutemo weindasitiri - kuchengetedza chlorine isina chlorine pasi pe 0.1 ppm - uripo nekuda kwechikonzero ichi.

Kuyera Mhedzisiro: Mutengo Wakakwira Wekusvibisa

Kurasikirwa kwehupfumi nekuda kwekusachena kwesimbi kwakakura. Ongororo inoratidza kuti kusachena kwesimbi kunokonzera inenge 24% yemari yekushandisa mumaRO systems. Izvi zvinoonekwa nekuwedzera kwekushandiswa kwesimba (kumanikidzwa kwakanyanya kwekudya kuti zvinhu zvirambe zvichifamba), kucheneswa kwemakemikari kakawanda (izvo zvinokanganisawo membrane), uye pakupedzisira, kutsiva nguva isati yakwana.

Chidzidzo chegore ra2025 pamusoro pekurapa electrochemical pretreatment yeRO chinoratidza kuti zvakawanda sei zviri panjodzi: hupenyu hwema membranes ekurapa mvura inotonhorera yeindasitiri hwakawedzerwa nekuchinja kukuru.203%apo kurapwa kwakaitwa zvakanaka, zvichideredza mari yekushandisa ne80%. Izvi zvinoratidza kuti mashandiro emembrane haasi e membrane chete, asiwo ekugadzirwa kwesystem yese.

Kuwedzera Hupenyu hweBasa: Nzira Yakawanda

Kurebesa hupenyu hwemembrane kunoda nzira yakakwana inotanga nguva refu mvura isati yasvika pamembrane.

1. Kurapwa Kwakagadzirira: Mutsetse Wako Wekutanga Wekudzivirira

Ruzivo rweindasitiri runoratidza kuti kusvika ku80% yekukundikana kwemembrane isati yakwana kunobva mukushaikwa kwekurapwa kusati kwaitwa. Kurapa kusati kwaitwa hakugoneke.

• Zvinonyorovesa uye Zvinodzivisa Kupisa:Kubvisa maion ekuomarara (Ca²⁺, Mg²⁺) kuburikidza nekuchinjana maion kana kunyorovesa makemikari kunoderedza zvakanyanya kugona kwekukura kwemasero. Imwe ongororo yakawana kuti kunyorovesa kunobvisa 79% yecalcium kubva mumvura yakasviba yemakemikari emarasha, zvichidzivirira kuumbwa kwezvikamu zvisingasanganisike-organic zvinosvibisa mamembrane.
• Kunyudzwa uye Kuokisijeni:Granular activated carbon (GAC) inobvisa chlorine yakasununguka uye inonyudza organic foulants. Ozonation inogona kupwanya organics ine mamorekuru akawanda, zvichiita kuti isanyanya kunamira pamusoro pemembrane. Mune zvimwe zviitiko, kurapwa uku kwakaratidzwa kuti kunowedzera normalized membrane flux kusvika ku21.9%.
• Kudzora SDI:Kuchengetedza Silt Density Index (SDI) nguva dzose iri pasi pe3 (uye kwete kupfuura 5) inzira yakakosha yekuyera. Kusefa kwemvura mu microfiltration kana ultrafiltration kumusoro kunogona kuita kuti chinangwa ichi chisvike.

2. Kushanda Kwakangwara: Kuenzanisa Kushanda Nekugara Kwenguva Yakareba

Mamiriro ekushanda anofanira kutarisirwa nokungwarira:

• Dzivisa Kumanikidzwa Zvakanyanya:Kupfuura kumanikidzwa kwemembrane kunodzvinyirira chimiro chemembrane (kuomarara), zvichideredza kupinda kwemvura.
• Gadzirisa Mwero weKudzoreredza:Kuedza kudzoreredza mvura yakawanda kunowedzera huwandu hwemaion ekukwesha mvura mumunyu. Kuenzanisa kugadzirwa kwemvura nenjodzi yekukwesha mvura kwakakosha.
• Chengetedza Mamiriro Ezvinhu Akagadzikana:Kuchinja-chinja kwepH, tembiricha, uye kuyerera kwemvura kunokonzera kushushikana kwemakemikari nemakemikari. Rutivi rwepolyamide runoshanda zvakanaka mukati mehuwandu hwepH hwakagadzikana hwe6-8.

Mhedziso

Kudzikira kwekushanda kwemembrane hakusi chinhu chisingadzivisike; imhedzisiro yekudyidzana kwemuviri nemakemikari zvinofungidzirwa. Nzira yekushanda kwenguva refu iri mukubvuma "hukama husina kusimba" - kubva kupolymerization yesilica kusvika pakunamatira kweorganic - uye kugadzirisa zvese kuburikidza nekushanda kwakangwara kwesystem uye dhizaini yepamusoro yemembrane. Nekubatanidza kurapwa kwakasimba kwekutanga, maprotocol ekushanda nekungwarira, uye tekinoroji yedu yemembrane isina kusvibisa zvakanyanya, vashandisi vemaindasitiri vanogona kuputsa kutenderera kwekutsiva nguva nenguva uye kuwana mashandiro akavimbika uye asingadhuri kwemakore.

Mareferensi Akakosha

• Tang, P., et al. "Kuderedza mhedzisiro uye mashandiro enzira dzakasiyana dzekurapa usati watanga kushandisa reverse osmosis membrane fouling mukurapa mvura yakasviba nemakemikari emarara." Desalination, 2025.
  [2] Zhou, J., nevamwe. "Kugadzirira kurapwa nemakemikari kunowedzera kushanda kweRO: Kuwedzera hupenyu hwemembrane ukuwo kuchideredza huwandu hwe concentrate." Chemical Engineering Journal, 2025.
  [3] Ruzivo rwakakwana pamusoro pekuongorora mari yekushanda kweindasitiri.
  [4] Ruzivo rweruzivo rwekugadzira uye kushanda nekugadzirisa masisitimu eMembrane system.
  [5] "Kufambira mberi kwenzira dzekudzivirira kusvibiswa kwe reverse osmosis membranes: Kunzwisisa nzira dzekusvibisa uye nzira itsva dzekugadzira." Journal of Membrane Science, 2026.
  [6] "Kuchinja kweganda re reverse osmosis ne hydrophilic amines kuti pave nekuparadzaniswa kweN-nitrosamine kwakawedzerwa uye kushanda kwekudzivirira kusvibiswa." Journal of Membrane Science, 2025.