Kev siv cov Surfactants hauv Fertilizers
Tiv thaiv cov chiv caking: Nrog rau txoj kev loj hlob ntawm cov chiv kev lag luam, nce fertilization theem, thiab loj hlob ib puag ncig kev paub, lub zej zog tau yuam ntau dua kev xav tau ntawm chiv ntau lawm txheej txheem thiab cov khoom ua tau zoo. Daim ntawv thov ntawmsurfactantstuaj yeem txhim kho cov chiv zoo. Caking tau ntev tau ib qho kev sib tw rau kev lag luam chiv, tshwj xeeb tshaj yog rau ammonium bicarbonate, ammonium sulfate, ammonium nitrate, ammonium phosphate, urea, thiab compound chiv. Txhawm rau tiv thaiv caking, ntxiv rau kev tiv thaiv kev tiv thaiv thaum lub sijhawm tsim khoom, ntim khoom, thiab khaws cia, surfactants tuaj yeem ntxiv rau cov chiv.
Urea nyiam ncuav mog qab zib thaum lub sijhawm thauj mus los thiab khaws cia, cuam tshuam loj heev rau nws qhov muag thiab kev siv tau. Qhov tshwm sim no tshwm sim vim recrystallization ntawm qhov chaw ntawm urea granules. Cov dej noo hauv cov granules migrate rau saum npoo (los yog absorbs atmospheric humidity), ua ib txheej dej nyias. Thaum qhov kub thiab txias hloov pauv, qhov dej noo no evaporates, ua rau cov kua dej saturated ntawm qhov chaw kom crystallize thiab ua rau caking.
Hauv Suav teb, nitrogen chiv feem ntau muaj nyob rau hauv peb hom: ammonium nitrogen, nitrate nitrogen, thiab amide nitrogen. Nitro fertilizer yog ib qho kev sib xyaw ua ke ntawm cov chiv uas muaj ammonium thiab nitrate nitrogen. Tsis zoo li urea, nitrate nitrogen hauv nitro chiv tuaj yeem nqus ncaj qha los ntawm cov qoob loo yam tsis muaj kev hloov pauv, ua rau muaj txiaj ntsig zoo dua. Nitro compound chiv yog tsim rau cov nyiaj ntsuab xws li haus luam yeeb, pob kws, melons, txiv hmab txiv ntoo, zaub, thiab txiv hmab txiv ntoo ntoo, ua tau zoo tshaj urea nyob rau hauv alkaline av thiab karst cheeb tsam. Txawm li cas los xij, txij li nitro compound chiv feem ntau suav nrog ammonium nitrate, uas yog hygroscopic heev thiab dhau mus ua cov theem hloov pauv nrog qhov kub thiab txias, lawv muaj peev xwm ua rau caking.
Daim ntawv thov ntawm Surfactants hauv Kev Kho Av Tsis Muaj Kab Mob
Nrog rau kev loj hlob ntawm kev lag luam xws li petrochemicals, tshuaj, thiab yas, ntau yam hydrophobic organic pollutants (piv txwv li, roj av hydrocarbons, halogenated organics, polycyclic aromatic hydrocarbons, tshuaj tua kab) thiab hnyav hlau ions nkag mus rau hauv av los ntawm spills, leaks, industrial discharges, thiab loj pov tseg pov tseg. Hydrophobic organic pollutants tau yooj yim khi nrog av organic teeb meem, txo lawv cov bioavailability thiab cuam tshuam kev siv av.
Surfactants, ua amphiphilic molecules, pom muaj zog affinity rau roj, aromatic hydrocarbons, thiab halogenated organics, ua rau lawv zoo nyob rau hauv av kho.
Kev siv cov surfactants hauv kev txuag dej Agricultural
Kev nqhis dej yog qhov teeb meem thoob ntiaj teb, nrog rau cov qoob loo poob vim kev puas tsuaj los ntawm kev puas tsuaj los ntawm lwm yam kev puas tsuaj los ntawm huab cua. Cov txheej txheem ntawm evaporation suppression yuav ntxiv cov surfactants rau cov tshuab uas yuav tsum tau khaws cov dej noo (xws li, dej ua liaj ua teb, cov chaw cog), tsim cov yeeb yaj kiab monomolecular rau ntawm qhov chaw. Cov yeeb yaj kiab no siv qhov chaw evaporation tsawg, txo qhov chaw evaporative zoo thiab txuag dej.
Thaum txau rau ntawm cov nroj tsuag, surfactants tsim ib qho kev taw qhia: lawv cov hydrophobic kawg (ntsib cov nroj tsuag) repel thiab thaiv sab hauv cov dej evaporation, thaum lawv hydrophilic kawg (ntsib saum huab cua) pab txhawb atmospheric noo noo condensation. Cov nyhuv ua ke inhibits dej poob, txhim kho qoob loo drought tsis kam, thiab boosts yields.
Xaus
Hauv cov ntsiab lus, surfactants muaj kev siv dav hauv kev ua liaj ua teb niaj hnub. Raws li cov txheej txheem kev ua liaj ua teb tshiab tau tshwm sim thiab cov teeb meem muaj kuab paug tshiab tshwm sim, qhov kev thov rau kev tshawb fawb surfactant siab heev thiab kev loj hlob yuav loj tuaj. Tsuas yog los ntawm kev tsim kom muaj txiaj ntsig zoo surfactants tailored rau daim teb no tuaj yeem ua rau kom muaj kev ua tiav ntawm kev ua liaj ua teb niaj hnub hauv Suav teb.
Post lub sij hawm: Aug-15-2025