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Journal articles
Open Access
Reducing aox by increasing oxidation potential in the first

ABSTRACT An increase in the standard oxidation potential of the reinforcing agent in the first caustic extraction stage will reduce the amount of AOX in the stage's effluent. A chlorinated broumstock pulp was treated alternatively in a basic caustic extraction (E) stage, an oxygen-reinforced caustic extraction (EO) stage, and an extraction stage reinforced with oxygen and peroxide (EOP). An AOX reduction of up to 30% was obtained in the effluent from the peroxide-reinforced extraction stage. In addition to the brownstock work, using two different model lignin compounds, we ran tests using oxyen, potassium permanganate, hydrogen peroxide with oxygen, and ozone with oxygen-reinforced caustic stages. In all cases, increasing the oxidation potential of the reinforcing agent decreased the amount of AOX detected in the effluent.

Journal articles
Open Access
ASAM pulping of douglas-fir followed by a chloring-free bleaching sequence, TAPPI JOURNAL, November 1991, Vol. 74(11)

ASAM pulping of douglas-fir followed by a chloring-free bleaching sequence, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Defibering and specific energy consumption in bale pulpers,

Defibering and specific energy consumption in bale pulpers, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Ramp design for roll-handling systems, TAPPI JOURNAL, Novemb

Ramp design for roll-handling systems, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Process modeling of contact extrusion and coextrusion, TAPPI

Process modeling of contact extrusion and coextrusion, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
An examination of the migration of selected contaminants fro

An examination of the migration of selected contaminants from microwave susceptors to food, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Comparison of soxtec and soxlet systems for determining extr

Comparison of soxtec and soxlet systems for determining extractives content, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Evidence of sodium fuming during pyrolysis of black liquor,

Evidence of sodium fuming during pyrolysis of black liquor, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Comments on porosity or swollen pulp fibers analyzed by solu

Comments on porosity or swollen pulp fibers analyzed by solute-exclusion, TAPPI JOURNAL, November 1991, Vol. 74(11)

Journal articles
Open Access
Chlorine-free bleaching: ozone and enzymes to the rescue?, TAPPI JOURNAL, November 1991, Vol. 74(11)

Chlorine-free bleaching: ozone and enzymes to the rescue?, TAPPI JOURNAL, November 1991, Vol. 74(11)

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