O le DSD acid (4,4 diaminostilbene mono-2,2 bisulfonic acid) o se vali taua tele, e masani ona faʻaaogaina e gaosia ai moli faʻamalama, G samasama tuusaʻo tuusaʻo, R samasama saʻo, moli moli F3G ma anti-moth-ai agents.O le COD o le 6000-8000mg / L, salinity o le 6% -8%, ma le lanu e 50,000 taimi;o vaega autu o le suavai otaota o mea manogi manogi faʻatasi ma vaega nitro, amino ma sulfonic, ma o le fua faatatau o le BOD i le COD e naʻo le 0.03, lea e matua faigata lava ona faʻaleagaina.

O le lelei o le vai ma le tele o le vai o le DSD acid production wastewater e mautu, ae o le chromaticity ma le sulfate concentration e maualuga tele, o meaʻai e pei o le N ma le P e leai, ma o le suavai otaota e iai mea oona ma leaga, e leai se faʻataʻitaʻiga togafitiga manuia i totonu. Saina.dsd acid o se paʻu samasama malamalama poʻo le paʻu, solu i le ethanol ma eter, e le mafai ona solu i le vai, soluble i le vaifofo alkali.(2) E faigofie ona faʻamaʻiina i le mumu, ma o loʻo i ai uiga o mea manogi ma amines i le taimi e tasi.

3) Tulaga lelei ma faʻamatalaga faʻapitoa: aofaʻi amino taua (e tusa ai ma le aofaʻi o le paʻu) ≥48%;oloa mamago aofaʻi amino taua (e tusa ai ma le aofaʻi atoa o faʻamago faʻataʻitaʻiga) ≥95.0%;mea e le mafai ona fa'afefeteina alkali (e ala i le aofaiga atoa o le pa'i) ≤0.05%;alkali insoluble mataupu mataupu (i le aofaiga atoa o le pauta) ≤0.08%;mea benzyl (e ala i le aofaʻi atoa o faʻataʻitaʻiga) ≤0.25% mo le gaosiga o le paʻepaʻe paʻepaʻe, faʻamalama paʻepaʻe, faʻamalama paʻepaʻe, paʻepaʻe paʻepaʻe, paʻu paʻepaʻe, paʻu paʻepaʻe, paʻu paʻepaʻe, paʻu paʻepaʻe, fa'amasani fa'amasani, fa'amasani fa'amasani, fa'amasani fa'amasani, fa'amasani fa'amasani, fa'amasani fa'amasani, fa'amasani fa'amasani, fa'amasani fa'amasani.Fa'asa'o le G samasama fa'a'aisa ma le R samasama sa'o, ma fa'aaoga e fai ma iniseti.

Fa'apu'upu'u fa'atutusa.Ole igoa atoa ole 4,4`-diaminostilbene-disulfonic acid.E mafai ona faʻaaogaina mo le faʻapipiʻiina o le fluorescent whitening agent ma isi vali.Numera CAS: 81-11-8 Fuafuaga Molecular: C14H14N2O6S2 Molecular Weight: 370.4008 Tulaga Tulaga Lelei (Fa'amatalaga) Va'aiga (Fa'aaliga): pa'u samasama mama/pa'u samasama malamalama Mea (Mama): ≥95.0 Fa'aputu（Afupega): 25 mg/kg.

0 Fa'apipi'i (Afīfī): 25kg/40kg/bag Meatotino Fa'aletino Molecular Weight: 370.4, tioata samasama po'o le malamalama samasama ma le hygroscopicity.E faigofie ona oxidize i le ea.O lenei oloa e oona ma faʻafefe i le paʻu, aloese mai le faʻafesoʻotaʻi tuusaʻo ma le tino o le tagata.

Metotia faʻapipiʻi: O le auala faʻapipiʻi o loʻo i ai nei o le p-nitrotoluene sulfonated ma le fuming sulfuric acid, ona faʻafefeteina lea i le vai, ma o le NTS vavae ese o loʻo faʻamaʻiina i lalo o tulaga alkaline ma le ea, ma o le DNS i le oxidation solution e faʻafefe i le masima, ona faʻaitiitia lea i le uʻamea pa'u, ona fa'afefete lea i le sulfuric acid.O le pauta ua mago ma mago.O le pauta o lo'o fa'atau atu o se oloa susu mo fa'atauga i totonu o le atunu'u, ae na'o le pauta e fa'atau atu mo fefa'ataua'iga faavaomalo.

O le kamupani fa'apisinisi Mit-ivy e tele lava ina gaosia le DSD ACID fa'atasi ai ma le gaosiga fa'aletausaga o le 1,000,000 tone, ma o lo'o i ai le fa'atauga fa'atauga atoatoa o le 97%.