A cikin kayan aikin gona da na gefe, ruwan inabi, vinegar da soya miya suna fermented daga sitaci, na hatsi.Tacewar waɗannan samfuran muhimmin tsari ne na samarwa, kuma ingancin tacewa kai tsaye yana shafar ingancin samfuran.Hanyoyin tacewa na al'ada sun haɗa da lalata dabi'a, adsorption mai aiki, diatomite tacewa, farantin karfe da firam filtration, da dai sauransu Wadannan hanyoyin tacewa suna da wasu matsaloli a cikin nau'i daban-daban na lokaci, aiki, kare muhalli da sauran bangarori, don haka wajibi ne a zabi mafi girma tacewa. hanya.
Zazzaɓin fiber na iya shiga manyan sinadarai da ƙazanta tsakanin 0.002 ~ 0.1μm, kuma ya ba da damar ƙananan ƙwayoyin ƙwayoyin cuta da narkar da daskararru (inorganic salts) su wuce, ta yadda ruwan da aka tace zai iya kiyaye ainihin launi, ƙamshi da dandano, kuma ya cimma manufar. na haifuwa mara zafi.Don haka, yin amfani da matattarar fiber mai zurfi don tace giya, vinegar, soya miya hanya ce ta ci gaba.
Polyethersulfone (PES) da aka zaba a matsayin membrane abu, da kuma m fiber ultrafiltration membrane da aka yi da wannan abu yana da babban sinadari Properties, resistant zuwa chlorinated hydrocarbons, ketones, acid da sauran kwayoyin kaushi, kuma barga zuwa acid, sansanonin, aliphatic hydrocarbons, mai. , barasa da sauransu.Good thermal kwanciyar hankali, mai kyau juriya ga tururi da kuma superhot ruwa (150 ~ 160 ℃), azumi kwarara kudi, high inji ƙarfi.Membran tacewa yana da sauƙin tsaftacewa tare da matsi na ciki maras nauyi, kuma harsashi na membrane, bututu da bawul an yi su da bakin karfe 304, wanda yake da tsabta kuma mai sauƙin tsaftacewa.
Don giya, vinegar, soya sauce iri-iri ne na amino acid, Organic acid, sugars, bitamin, kayan halitta kamar barasa da ester da cakuda ruwa, kuma suna ɗaukar hanyar tacewa ta giciye, ta hanyar famfo za a buƙaci don tace bututun ruwa a cikin membrane na tacewa, membrane tace ruwa don gama samfurin, ba ta cikin ruwa zuwa bututun mai da hankali don komawa wuri guda ba.
Saboda fitar da ruwa mai yawa, ana iya samun babban ƙarfi mai ƙarfi a saman membrane, don haka yadda ya kamata ya rage gurɓataccen membrane.Za'a iya daidaita rabon adadin ruwan da aka tattara zuwa magudanar kayan da aka gama bisa ga takamaiman yanayin ruwan da aka tace don rage gurɓacewar membrane, kuma ruwan da aka tattara zai iya komawa wurinsa na asali kuma ya sake dawowa. -shiga tsarin ultrafiltration don maganin tacewa.
3 Tsarin Tsaftacewa
Tsarin tsaftacewa na fiber maras kyau shine muhimmin sashi na tacewa, saboda fuskar membrane za a rufe shi da wasu ƙazanta daban-daban da aka kama, har ma da ramukan membrane za a toshe su da ƙazanta masu kyau, wanda zai ƙasƙantar da aikin rabuwa, don haka shi ne. wajibi ne don wanke membrane a lokaci.
Ka'idar tsaftacewa ita ce cewa ruwan tsaftacewa (yawanci mai tsaftataccen ruwa mai tsabta) ana shigar da shi ta hanyar famfo mai tsaftacewa ta cikin bututun zuwa cikin madaidaicin fiber tacewa membrane don wanke ƙazanta a bangon membrane, kuma ruwan sharar yana fitar da shi ta hanyar zubar da sharar gida. bututu.Za'a iya tsaftace tsarin tsaftacewa na tacewa a hanyoyi masu kyau da mara kyau.
Kyakkyawan wankewa (kamar matsa lamba) hanya ta musamman ita ce kusa da bawul ɗin filtrate, buɗe bawul ɗin fitarwar ruwa, famfo zai fara samar da shigar da ruwa na jikin membrane, wannan aikin yana sanya fiber ciki da waje matsa lamba a bangarorin biyu daidai suke, bambancin matsa lamba. adhesion a sako-sako da datti a saman membrane, ƙara yawan zirga-zirga sake wanke farfajiya, fim mai laushi a kan babban adadin ƙazanta za a iya cirewa.
Wanke baya (baya flushing), takamaiman hanyar ita ce don rufe bawul ɗin fitarwa, cikakken buɗe bawul ɗin sharar ruwa, buɗe bawul ɗin tsaftacewa, fara famfo mai tsaftacewa, ruwan tsaftacewa a cikin jikin membrane, cire ƙazanta a cikin ramin bangon membrane. .Lokacin wankin baya, ya kamata a mai da hankali kan sarrafa matsi na wankewa, matsa lamba na baya ya kamata ya zama ƙasa da 0.2mpa, in ba haka ba yana da sauƙi a fashe fim ɗin ko lalata farfajiyar haɗin fiber da ɗaure da samar da ɗigo.
Ko da yake na yau da kullum tabbatacce da kuma baya tsaftacewa zai iya kula da membrane tace gudun da kyau, tare da tsawo na Gudun lokaci na membrane module, da membrane gurbatawa zai zama mafi tsanani kuma mafi tsanani, da kuma membrane tacewa gudun kuma zai ragu.Don dawo da juzu'in tacewar membrane, ƙirar membrane tana buƙatar tsaftacewa da sinadarai.Ana yin tsabtace sinadarai yawanci tare da acid da farko sannan kuma alkali.Gabaɗaya, ana amfani da 2% citric acid wajen tsinke, kuma ana amfani da 1% ~ 2% NaOH wajen wanke alkali.
Lokacin aikawa: Agusta-06-2021