Gargajiya cire hanyoyin glycerol

1 kumaTraditional fasalin ruwa nauyi crystallization hanyar

Hanyar gargajiya don cire glycerol daga teku shine hanyar crystallization mai nauyi, takamaiman tsarin tsari kamar yadda aka nuna a cikin hoton da ke ƙasa, wannan tsarin yana da wadannan rashin amfani:

1. Ganerol abun ciki a cikin teku belt yawanci ne a kusa da 1% (10-12% ta hanyar saukar da ruwa), yayin da ta crystalline mataki ne a kusa da 20%, dole ne a tururi da yawa ruwa daga teku belt nutsar da ruwa don sa ganerol tashin hankali crystallize fita. Har ila yau, ruwan kai dole ne ya wuce sau biyu steam da kuma crystallization tsari, wato, akwai sau biyu deformation tsari. Saboda haka, yawan amfani da makamashi yana buƙatar kusan 60t na tururi a kowace 1t na glycerol.

2. Raw kayan da aka samu daga farko mayar da hankali crystal bukatar sake narkewa da ruwa bayan, amfani da centrifugal ruwa wanki da sauran hanyoyin kawar da cututtuka na kwayoyin halitta da kuma gishiri mara kwayoyin halitta kamar glue, amma a lokaci guda glycerol ma narkewa da asarar, da yawan asarar kusan 10%.

Baya ga kusan 1% na glycerol a cikin ruwan da ke cikin teku, yana ƙunshe da 3% na gishiri mara kyau, galibi NaCl (salt neutralization) ko Na2SO4 (sulfuric acid neutralization) da wasu ions masu tauri. Idan NaCl ne, Cl-zai haifar da mummunan lalata ga bakin karfe kayan tururi, kamar Na2SO4 zai haifar da tururi girma. Dukansu za su rage rayuwar aikin tururi, haɓaka kuɗin gyara da maye gurbin kayan aiki, kuma za su kawo rashin tsaro ga samarwa.

4. Low madadin sarrafa kansa, ma'aikata aiki karfi, samar da mummunan muhalli.

biyumembrane hadewa tsari

Membrane hadewa fasahar fitar da glycerol tsari tsarin ya kunshi biyar sassa kamar kayan ruwa pre-magani, UF tsabtace, ED daya desalination, RO mayar da hankali da kuma ED biyu desalination. Tsarin aiki kamar yadda aka nuna a hoton dama.

1. kayan ruwa pre-processing tsarin

Bayan tiyodine, ruwa na ruwa na teku ya fara ta hanyar flocculation da kuma samar da ƙarfin membrane don raba ruwa mai ƙarfi ta hanyar atomatik mai matsin lamba mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi mai ƙarfi

2. Electrolysis daya desalination tsarin

Bayan tacewa ta hanyar tace ƙasa ta silica, yawan gishiri mara kyau na ruwan ruwa yana tsakanin 18000-22000mg / L, waɗannan gishiri mara kyau a lokacin da RO ya haɗa glycerol, za a haɗa shi lokaci guda. A lokaci guda high saltiness immersion ruwa matsin lamba a lokacin taro, iyakance glycerol taro multiples, don haka bukatar amfani da EDI pre-dehydrated gishiri, electrolysis EDI pre-dehydrated gishiri bayan immersion ruwa lantarki conductivity tsakanin 2500-3000us / cm (25 ℃) kasa da.

3. Ultra tacewa tsarin

Ultrafilter UF a matsayin pre-treatment tsarin RO, cire dakatarwa, macromolecular organic abubuwa, narkewa granules da sauran ƙarancin abubuwa a cikin immersive ruwa. Ganerol daidaitaccen nauyin kwayoyin shine 182, sauran ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙaranc Saboda haka tsarin ya zaɓi tsare kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwayoyin kwa Saboda ruwan da ke dauke da yawan colloids, furotin, polysaccharides da gishiri mara kyau, yana da sauƙin haifar da toshewar UF membrane, tsarin ya tsara tsarin tsabtace CIP na kan layi na musamman.

4. Reverse osmosis RO mayar da hankali tsarin

UF ta hanyar ruwa SDI sarrafawa a tsakanin 2-4, saduwa da reverse osmosis RO membrane kayan ruwa ingancin bukatun. Ta hanyar UF tacewa immersion ruwa dauke da glycerol mataki tsakanin 1.3-1.5%, RO mayar da hankali dehydration sau 3-5 fiye da, RO mayar da hankali tsarin amfani da shigo da daidaitaccen irin anti gurɓataccen reverse osmosis hadaddun fim, goyon bayan matsin lamba tsarin, kayan aiki iko da kuma sa ido, zane tsari tunani ga hoton da ke ƙasa:

5. Electrolysis biyu desalination tsarin

Bayan mayar da hankali na na'urar reverse osmosis, matattarar glycerol ta kai sau 3, kuma gishiri mara kyau a cikin ruwan yana da matattarar sau 3 a lokaci guda. Ta wannan hanyar, a lokacin tsari na tsari, amfani da musayar ion kai tsaye don kawar da nauyin gishiri, yana buƙatar sabuntawa sau da yawa. Don wannan amfani da ion musayar membrane ED don a biyu desalination na concentrated ruwa. Bayan an kawar da gishiri, ruwan ya sake musayar biyu ta hanyar ion. Bayan da aka tsara ruwa ta biyu, ruwan da aka fitar yana kimanin 140mg / L, ya shiga cikin tsarin da aka gama.

Babban ɓangaren tsarin da aka ambata a sama, tsarin UF da RO yana amfani da sa ido na kwamfuta, aiki da sarrafawa suna da sauƙi.