Ukusetshenziswa okuyinhloko kwe-caustic soda embonini yokwenza iphepha

Ukusetshenziswa okuyinhloko embonini yokwenza iphepha

 

1. Ukukhiqizwa kwe-pulp

 

Enqubweni yokukhiqiza i-pulp, i-caustic soda isetshenziselwa kakhulu ukulungiswa kwe-pulp yamakhemikhali. Ngokuphatha izinkuni nge-caustic soda, i-lignin ingahlukaniswa ngokuphumelelayo ne-cellulose, futhi le nqubo ibizwa ngokuthi i-delignification. I-pulp emva kokuhlukaniswa ihlanzekile, okusiza ukuthuthukisa ikhwalithi yephepha lokugcina.

 

2. I-Pulp bleaching

 

I-soda ibuye isetshenziswe enkambisweni yokuhlanza i-pulp. Phakathi nenqubo yokuhlanza, i-caustic soda ingathuthukisa ukugqama kwe-pulp, isuse ama-pigments nokungcola ku-pulp, futhi yenze iphepha libe mhlophe.

 

3. Ukucubungula iphepha

 

Ngesikhathi sokucutshungulwa kwephepha, i-caustic soda isetshenziselwa ukulungisa inani le-pH lephepha ukuvimbela izinto ezine-asidi ukuthi zingagqwali ephepheni. Ngaphezu kwalokho, i-caustic soda ingasetshenziselwa ukwelashwa okungaphezulu kwephepha, ukuthuthukisa ukushelela nokuphrinta kwayo.

 

Indlela yokusebenza ye-caustic soda

 

Indlela yokusebenza ye-caustic soda embonini yokwenza amaphepha ibonakala ikakhulukazi kulezi zici ezilandelayo:

 

1. Ukuhlukaniswa

 

I-Caustic soda iphazamisa izibopho ze-ester kuma-molecule e-lignin, okuvumela i-lignin ukuthi ihlukane ne-cellulose. Le nqubo ayigcini nje ukuthuthukisa ukuhlanzeka kwe-pulp, kodwa futhi isiza ukunciphisa ukungcola ku-pulp.

 

3. Ukuhlanza

 

Isoda ye-Caustic idlala indima ebalulekile enqubweni yokufiphala, ikhuthaza ukubola kanye nokubola kombala ku-pulp, ngaleyo ndlela kuthuthukiswe ukugqama kwe-pulp.

 

4. Ukucutshungulwa kwephepha

 

I-Caustic soda yenza izinto ezine-acidic zibe lula ephepheni ukuze kuvinjwe i-asidi nokuguga kwephepha. Khonamanjalo, i-caustic soda ingabuye ithuthukise izakhiwo zephepha futhi ithuthukise izinga layo lokuphrinta.

 

Umthelela we-caustic soda endaweni ezungezile

 

Ukusetshenziswa kwe-caustic soda kuzoba nomthelela othile emvelweni. Enqubweni yokwenza iphepha, ukusetshenziswa kwe-caustic soda kungase kuholele ekwandeni kwe-alkalinity emanzini angcolile, okungaba nomthelela endaweni yemvelo yasemanzini. Ngakho-ke, amabhizinisi okwenza iphepha adinga ukuthatha izinyathelo ezisebenzayo zokwelashwa kwamanzi angcolile ukuze anciphise umthelela we-caustic soda endaweni ezungezile.

 

Amathrendi entuthuko yesikhathi esizayo

 

Ngokuthuthukiswa kwezidingo zokuvikela imvelo kanye nenqubekelaphambili yezobuchwepheshe, ukusetshenziswa kwe-caustic soda embonini yokwenza amaphepha nakho kuthuthukiswa njalo. Ngokuzayo, imboni yephepha ingase isebenzise ezinye izindlela ezivumelana nemvelo ukuze kuncishiswe ukusetshenziswa kwe-caustic soda. Khonamanjalo, ukuthuthukisa izinga lokugaywa kabusha kwe-caustic soda kanye nokunciphisa izindleko zokukhiqiza nakho kuyizikhombisi-ndlela ezibalulekile zentuthuko yesikhathi esizayo.

 

I-Epilogue

 

Ukusetshenziswa kwe-caustic soda embonini yokwenza iphepha kubanzi futhi kubalulekile, njengoba kudlala indima ebalulekile ekuthuthukiseni izinga lephepha nokusebenza kahle kokukhiqiza. Kodwa-ke, ukusetshenziswa kwe-caustic soda kuletha nezinkinga ezithile zemvelo ezidinga ukuxazululwa ngokusungula izinto ezintsha zobuchwepheshe kanye nokwenza kahle kokuphatha. Ngokuzayo, imboni yephepha izoqhubeka nokuhlola izinqubo zokukhiqiza ezihambisana nemvelo nezongayo ukuze kuzuzwe intuthuko esimeme.