The pollution and harm caused by dioxine had been paid attention in all over the world.And the bleaching process in pulp and paper making industry is also a source of dioxine.
Low temperature bleaching of wool with hydrogen peroxide using katalase as catalyst under acid condition has been studied as well as the related factors influencing it.
The Effect of Refining Treatment on Penicium ZCF57 Crude Enzyme Prebleaching Efficiency to wheat straw chemical pulp was investigated by using selected DED bleaching sequence.
In this paper, the protection measures of carbohydrate during pulp TCF bleaching, such as oxygen, ozone, peroxide, peracid and photochemistry reaction of bleaching, were respectively.
Bleaching earth filtration —Complete removal of the bleaching media from the bleached oil is very important since residual earths can act as a prooxidant.
An incorporative process in cooking with bleaching of cotton linter pulp with peracetic acid was optimized with orthogonal test and single-factor tests.
Rising sea temperatures have led to an effect called coral bleaching, that is, large numbers of corals dying off, especially in the shallower areas of the reef.
Rising sea temperatures have led to an effect called " coral bleaching" , that is large numbers of corals dying off, especially in the shallower area of the reef.
Research shows that carbon-based chemical sunscreen ingredients, like oxybenzone, butylparaben, octinoxate, and 4MBC contribute to a stress condition called coral bleaching in corals, which are living creatures.
She was diving for samples off the Florida Keys, and the thicket of elkhorn coral below looked brown, not the stark white that would indicate bleaching from the record-breaking sea temperatures in the area.