Electrodialysis (ED) inzira inoshandisa membrane inopindika zvishoma uye simba remagetsi rakananga kutakura zvidimbu zvakanyungudutswa zvine chaji (senge maion) kubva mumushonga. Maitiro aya ekuparadzanisa anonyanya kusanganisa, kunyorovesa, kunatsa, uye kuchenesa mhinduro nekutungamira zvinonyungudutswa zvine chaji kubva mumvura nezvimwe zvinhu zvisina chaji. Electrodialysis yashanduka kuita mashandiro makuru emakemikari uye ine basa guru muhunyanzvi hwekuparadzanisa membrane. Inoshandiswa zvakanyanya mumaindasitiri akadai sekubvisa munyu mumakemikari, kubvisa munyu mumvura yegungwa, chikafu nemishonga, uye kurapwa kwemvura yakasviba. Mune dzimwe nzvimbo, yave nzira huru yekugadzira mvura yekunwa. Inopa zvakanakira zvakaita sekushandiswa kwesimba shoma, mabhenefiti akakosha ehupfumi, kurapwa kuri nyore, midziyo inogara kwenguva refu, dhizaini yesystem inochinjika, kushanda nyore uye kugadzirisa, maitiro akachena, kushandiswa kwemakemikari kushoma, kusvibiswa kushoma kwezvakatipoteredza, hupenyu hwemidziyo hurefu, uye mwero wepamusoro wekudzoreredza mvura (kazhinji kubva pa65% kusvika 80%).
Nzira dzinoshandiswa pakuongorora electrodialysis dzinosanganisira electrodeionization (EDI), electrodialysis reversal (EDR), electrodialysis ine liquid membranes (EDLM), high-temperature electrodialysis, roll-type electrodialysis, bipolar membrane electrodialysis, nezvimwewo.
Kuchenesa kwemagetsi (Electrodialysis) kunogona kushandiswa pakurapa marudzi akasiyana-siyana emvura yakasviba, kusanganisira mvura yakasviba inoputirwa nemagetsi uye mvura yakasviba ine simbi inorema. Inogona kushandiswa kubvisa maion esimbi nezvimwe zvinhu kubva mumvura yakasviba, zvichibvumira kudzoserwa uye kushandiswazve kwemvura nezvinhu zvinokosha uku ichideredza kusvibiswa uye kuburitswa kwemhepo. Zvidzidzo zvakaratidza kuti electrodialysis inogona kudzosa mhangura, zinc, uye kunyange oxidize Cr3+ kuCr6+ panguva yekurapa mhinduro dzepasi mukugadzirwa kwemhangura. Pamusoro pezvo, electrodialysis yakabatanidzwa ne ion exchange kuti idzose simbi dzinorema nemaacid kubva mumvura yakasviba inopikwa neacid mumaindasitiri. Midziyo ye electrodialysis yakagadzirwa nemazvo, ichishandisa anion uye cation exchange resins se fillers, yakashandiswa kurapa mvura yakasviba yesimbi inorema, zvichiita kuti idzokororwe zvakare uye isaburitswe zvachose. Electrodialysis inogonawo kushandiswa kurapa mvura yakasviba yealkaline uye mvura yakasviba yeorganic.
Ongororo yakaitwa paState Key Laboratory of Pollution Control and Reuse Reuse muChina yakadzidza nezvekurapa mvura yakasviba ine epoxy propane chlorination tail gas uchishandisa ion exchange membrane electrolysis. Kana electrolysis voltage yaive 5.0V uye nguva yekutenderera yaive maawa matatu, COD removal rate yemvura yakasviba yakasvika 78%, uye alkali recovery rate yaive yakakwira kusvika 73.55%, ichibatsira senzira yekurapa ma biochemical units anotevera. Tekinoroji ye electrodialysis yakashandiswawo kurapa mvura yakasviba ine concentration complex organic acid, ine concentrations inotangira pa3% kusvika 15%, neShandong Luhua Petrochemical Company. Nzira iyi haigumisi ma residues kana secondary defect, uye concentrated solution inowanikwa ine 20% kusvika 40% acid, iyo inogona kudzokororwa uye kurapwa, ichideredza acid iri mumvura yakasviba kusvika 0.05% kusvika 0.3%. Pamusoro pezvo, Sinopec Sichuan Petrochemical Company yakashandisa mudziyo we electrodialysis wakasarudzika kurapa mvura yakasviba ine condensate, ichikwanisa kurapa mvura yakasviba inosvika 36 t/awa, huwandu hwe ammonium nitrate mumvura yakaomeswa huchisvika pamusoro pe20%, uye huwandu hwemvura yakachena yakarapwa hwaipfuura 96%. Mvura yakachena yakarapwa yaive ne ammonium nitrogen mass fraction ye ≤40mg/L, ichisangana nezvinodiwa zvezvakatipoteredza.
Nguva yekutumira: Gunyana-07-2023
