iindaba

Ligninbubutyebi besibini ngobuninzi obunokuhlaziywa ngokwendalo. Ikho ngezixa ezikhulu kulwelo lwenkunkuma etyhaphaza, isixa esincinci kakhulu esiphinda sisetyenziswe kwakhona kwaye siphinde sisetyenziswe, kwaye yonke enye ikhutshelwa kwindalo, ibangele ungcoliseko olumandla lokusingqongileyo. Kwibutho lanamhlanje, ukunqongophala kwemithombo nongcoliso lwemekobume kuye kwaba yingxaki ezimbini ezinkulu ekufuneka ibutho labantu lizicombulule ngokungxamisekileyo. Ngenxa yesakhiwo sayo esikhethekileyo, i-lignin iye yaphuhliswa kwaye isetyenziswa njengento esisiseko kwishishini lemichiza. Ukudibanisa okugqibeleleyo kweenzuzo zentlalo kunye nezoqoqosho kuye kwafezekiswa, kwaye imeko yokuphumelela ifunyenwe.

Ukusetyenziswa kwe-lignin kwishishini lemichiza
Ukusetyenziswa kwe-lignin kwishishini lemichiza2

Ubume beligniniyinkimbinkimbi, kwaye ukuguqulwa kwesakhiwo sayo kuxhomekeke kuhlobo lwesityalo kunye nendlela yokwahlukana. Ngoko ke, iligninUlwakhiwo lwemithombo yokhuni oluqinileyo yahlukile kwizityalo ezikhula ngezityalo kunye nezityalo zonyaka. Nangona kunjalo, iindlela ezahlukeneyo zokwahlula ziya kubangela iintlobo ezahlukeneyo ze-lignin. I-Sulfite pulping inokuvelisa i-solublelignosulfonates, kunye ne-kraft pulping phantsi kweemeko ze-alkaline inokuvelisa i-lignin enganyibiliki emanzini kodwa i-soluble kwi-alkali. I-sulfate lignin kunye ne-alkali lignin, ezi lignin zingowona mthombo uphambili wezinto eziluhlaza zoshishino. Phakathi kwazo zonke ii-lignin, i-sulfate lignin ithathwa njengento efanelekileyo ekrwada ukuveliswa kweenkuni zokhuni.

Ukusetyenziswa kwe-lignin kushishino lweekhemikhali3
Ukusetyenziswa kwe-lignin kushishino lweekhemikhali4

Isakhiwo se-lignin siqulethe amaqela amaninzi asebenzayo, kwaye i-lignin ngokwayo kunye neemveliso zayo ezilungisiweyo zisetyenziswe kwiinkalo ezahlukeneyo. Kwi-samente kunye nobunjineli bokwakha, i-lignosulfonate inokuphucula ngokufanelekileyo i-fluidity ye-samente kwaye iyona nto isetyenzisiweyo yokunciphisa amanzi ekhonkrithi. Okwangoku, malunga ne-50% yayo iveliswa yinkqubo yokwahlula i-pulping kunye ne-papermaking.I-Lignosulfonateszisetyenziswa njengezongezo zesamente.

Ukusetyenziswa kwe-lignin kushishino lweekhemikhali5
Ukusetyenziswa kwe-lignin kushishino lweekhemikhali6

Ngokwezichumisi zebhayoloji, isakhiwo se-lignin siqulethe izinto ezifunekayo ekukhuleni kwezityalo. Ezi zondlo zinokukhutshwa ngokukhawuleza njengoko i-lignin ngokwayo ithotywa, ngoko inokusetyenziswa njengesichumiso esisebenzayo esilawulwayo. I-Lignin inokudityaniswa neekhemikhali kunye neemolekyuli ze-pesticide ngokusebenzisa i-chemical reactions elula, kwaye ingasetyenziselwa njengomphathi we-pesticides-release-release-release-deep-deep-deep-deep-pesticide application, ukuze ikwazi ukuphumeza umphumo wokulawula izinambuzane. iimeko zedosi encinci. Ukunciphisa ukungcoliseka kwendalo okubangelwa kukusetyenziswa ngokungekho ngqiqweni kwezibulali-zinambuzane nokunciphisa iindleko zokufaka imichiza.

Ukusetyenziswa kwe-lignin kushishino lweekhemikhali7
Ukusetyenziswa kwe-lignin kushishino lweekhemikhali8

Kunyango lwamanzi, amashishini ahlukeneyoligninkunye neemveliso zabo eziguquliweyo zineempawu ezintle zokubhengeza, azinako nje ukubhengeza i-ion zesinyithi, kodwa zingasetyenziselwa ukubhengeza i-anion, i-organics kunye nezinye izinto emanzini, ngaloo ndlela zihlambulula umgangatho wamanzi.

Ukusetyenziswa kwe-lignin kushishino lweekhemikhali9
Ukusetyenziswa kwe-lignin kwishishini lemichiza10

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  • Ixesha lokuposa: Sep-07-2021