Kaw lub voj hydroponics, qhov twg cov kua dej tawm tau raug ntes thiab rov qab siv dua rau cov qoob loo, muaj qhov zoo ntawm kev ntws-los ntawm ib qho los ntawm kev siv dej thiab kev siv cov khoom noj kom zoo. Kev siv cov peev txheej nce ntxiv txo cov nqi tsim khoom thiab thaum kawg tiv thaiv kev cuam tshuam ib puag ncig cuam tshuam nrog cov khoom noj tawm kom tau txais lub cev dej.
Txawm hais tias muaj ntau qhov zoo, kuj tseem muaj kev pheej hmoo ntau lawm thaum siv kev ntes thiab rov siv dua, uas yog, kev loj hlob ntawm cov kab mob. Muaj ntau hom tshuab tam sim no siv hauv kev lag luam rau kev kho dej fertigation (dej dej nrog chiv). Piv txwv suav nrog tab sis tsis txwv rau cov xuab zeb pom, ultraviolet lub teeb, chlorination, ozonation [O3 (aq)], cov txheej txheem oxidation siab heev, peracetic acid (C2H4O3), thiab hydrogen peroxide (H(O2).
Nyob rau hauv qhov kev sim no, recirculating nutrient tov tau kho siv dimensionally ruaj khov anode (DSA)-raws li regenerative nyob rau hauv situ electrochemical hypochlorination (RisEHc) nyob rau hauv ib tug sib sib zog nqus dej kab lis kev cai hydroponic lettuce (Lactuca sativa) ntau lawm system. Cov teebmeem phytotoxic tau raug sau tseg thiab raug ntaus nqi los ntawm kev tsim cov chloramines hauv cov khoom noj khoom haus uas muaj ammonium. Txoj kev tshawb no pom tau hais tias cov teebmeem phytotoxic tuaj yeem tiv thaiv nrog kev siv cov tshuaj regenerative hauv situ hypochlorination los ntawm kev tswj kom raug thiab saib xyuas cov txheej txheem hauv recirculating hydroponic systems.
Thaum lub phytotoxicity tshwm sim los ntawm cov pa chlorination tau kawm zoo, tsis muaj cov ntaub ntawv hais txog cov nyhuv ntawm RisEHC tshiab, nrog DSA, cov txheej txheem tshuaj xyuas ntawm no, qhov twg cov tshuaj tua kab mob txuas ntxiv txuas ntxiv. Lub hom phiaj ntawm qhov kev tshawb fawb tau nthuav tawm yog los ntsuas cov lus teb ntawm cov nroj tsuag thiab muaj peev xwm phytotoxic cuam tshuam los ntawm kev kho cov tshuaj sib txawv recirculating nutrient daws ntawm RisEHC. Tsis tas li ntawd, qhov ua tau zoo ntawm kev siv cov ntawv thov tom qab electrochemical ultraviolet los txo cov teebmeem phytotoxicity, nrog rau kev hloov pauv cov nitrogen ntawm cov chiv, tau kuaj xyuas.
Kev kho kom zoo fertigation zoo yog qhov tseem ceeb hauv kev ua kom tiav tag nrho cov peev txheej ntawm lub sij hawm ntev recirculating hydroponic systems. Lub RisEHC qhov kev tshuaj xyuas ntawm no tau pom tias muaj txiaj ntsig zoo ntawm kev txo qis cov kab mob microbial hauv kev sim ntsuas-scale hydroponic kev loj hlob; Txawm li cas los xij, kev tsim cov chloramines nyob rau hauv lub xub ntiag ntawm ammoniacal tebchaw / chiv ua rau phytotoxicity nyob rau hauv ib co scenarios.
Nyob rau hauv txoj kev tshawb no tam sim no, chloramine phytotoxicity tau hais los ntawm kev tsis suav nrog ammoniacal chiv, los yog los ntawm decomposition siv. ultraviolet hluav taws xob Tom qab kev kho mob electrochemical, ib qho kev xyaum uas yuav ntxiv dag zog rau microbial inactivation. RisEHC yog ib qho cuab yeej kho kom zoo fertigation kho thaum chloramine ntau lawm raug zam los yog txo.
Raws li tus kws sau ntawv, "Yog tias tswj hwm ib puag ncig kev ua liaj ua teb (CEA) yuav tsum kaw tag nrho cov voj voog dej (piv txwv li, xoom tso tawm), cov thev naus laus zis yuav tsum tau ua kom cov kev daws teeb meem tsis muaj kab mob tsis muaj cov tshuaj tua kab mob los yog cov tshuaj tua kab mob phem. Peb tsim txoj kev RisE HC nrog lub hom phiaj ntawm kev muab cov thev naus laus zis uas yuav tshem tawm ntau qhov kev txwv rau horticultural chlorination li sai tau. Cov zaub mov tsis ruaj ntseg tau nce thoob plaws ntiaj teb thiab peb cia siab tias cov thev naus laus zis xws li RisE HC tuaj yeem txhim kho kev ruaj khov ntawm CEA zaub mov (thiab paj paj) qoob loo. "
Cov ntawv luam tawm nyob rau hauv phau ntawv journal HortScience.