Screening quotient (Q) 588

– in relation to screening efficiency 589

Screening zone length 567

– in relation to consistency 570

– in relation to fiber passage ratio 569

Screw conveyor

– log handling 98

– shredding 550

Screw reclaimer, chip storage 103

SEC see size-exclusion chromatography

Second chlorine dioxide stage, effect on

Brightness 758

Secondary effluent treatment 1004

Secondary fines, beech pulp 1020

Secondary knot screens, screening and

cleaning equipment 604–605

Secondary peeling 188

Secondary wall, cell components 42

Sedimentation, centrifugal cleaning theory

581–584

Seed and fruit fibers, cell dimensions and

Chemical composition 4

selective contaminant removal 592–594

Selective fiber passage, screening theory

570–572

Selective hydrolysis, lignin content 1227

Selective lignin bromination 316

Selective separation, centrifugal cleaning

theory 585–586

Selectivity

– as function of initial NaOH charge 480

– chlorine dioxide bleaching 760

– delignification/purification in Visbatch®

Process 363

– oxygen delignification 702, 720–721

– ozone treatment 829–840

Selectivity plot

– comparison of CLF and standard batch

Cooking 245

– conventional, MCC® and EMCC®

Cooking 297

– different alkali ratios in spruce AS/AQ