Ibintu nyamukuru vyo kugenzura mu guhingura Bisphenol A
Ku bijanye n’ubusuku bw’ibikoresho vya mbere, phenol na acetone, nk’ibikoresho nyamukuru vyo guhingura bisphenol A, birakeneye kugenzurwa cane ubusuku bwavyo. Ubusuku bwa phenol ntibukwiye kuba munsi ya 99,5%, ubusuku bwa acetone na bwo bugashika hejuru ya 99%. Ibikoresho vya mbere vy’ubusuku bwinshi birashobora kugabanya ukuntu ubuhumane butera ingorane ku nzira y’ugusubiza kandi bikaba bituma igikorwa c’ugusubiza kigenda neza.
Gucungera ubushuhe bw’inyishu ni ikintu gihambaye cane. Ubushuhe bw’ugusubira inyuma kw’amazi muri rusangi buri hagati ya 40 – 60°C. Muri ubwo bushuhe, urugero rw’ugusubiranamo n’uguhitamwo ibintu birashobora gushika ku buringanire bwiza. Ubushuhe buri hejuru cane canke buke cane buzogira ico bukoze ku mwimbu n’uburyo bwa bisphenol A BPA. Ibikorwa n’uguhitamwo kw’igikoresho gitera umuriro ni vyo bigena inzira y’inyishu. Ivyo bikoresho bikoreshwa cane bitera aside nk’aside sulfurique bisaba gukoresha neza ingene bikoreshwa n’ingene bikoreshwa. Muri rusangi, urugero rw’aside sulfurique rurahinduka mu rugero runaka, kandi urugero ni urugero rudasanzwe rw’urugero rwose rw’ibikoresho vya mbere, kugira ngo bimenye neza ko igikoresho gitera umuriro gikora neza kuruta ibindi vyose. Igitutu c’ugusubiza na co nyene kiragira ico gikoze ku guhingura bisphenol A BPA. Igitigiri c’inguvu zibereye ni 0,5 – 1,5 MPa. Igihugu c’umuvuduko ushikamye gifasha kuguma gishikamye mu buryo bw’ugusubiza kandi kigatera imbere uguhindura uburemere n’ugutera imbere kw’ugusubiza. Igitigiri c’ibintu gifitaniye isano n’ubushobozi bwo gusubiza. Igipimo ca molaire ca phenol na acetone akenshi kigenzurwa kuri 2.5 – 3.5:1. Igitigiri kibereye gishobora gutuma ibikoresho vya mbere bikora neza, bikongera umusaruro wa bisphenol A BPA, bigatuma n’ibintu biva mu bihimba vy’umubiri bigabanuka.

Bisphenol A BPA ihindurwa ryongera inkomezi z’ubuhinga, ubushobozi bwo gukomeretswa n’ugushaza, ryiteguriye guhangana n’ingorane zisaba.

Niba ushaka kugura ibintu vy’imiti vyizigirwa, ndagusavye urondere Shandong Pulisi Chemical Co., Ltd., yibanda ku “miti y’uburyo bwiza” kandi imaze imyaka 20 ikora.