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INVESTIGATING THE CAUSES OF SEVERE ECONOMIZER TUBE THINNING IN AN SSL BOILER, 2022PEERS/IBBC Conference (22PEE/22IBB)

Cracking of straight co-extruded composite wall tubes in black liquor recovery boilers, 2022PEERS/IBBC Conference (22PEE/22IBB)

Recycled Fiber Paper Mill Water Reduction and Reuse: Reviewing Fresh Water Reduction and Process Water Recycling Initiatives, 2022PEERS/IBBC Conference (22PEE/22IBB)

Comparison of White Liquor Measurement Gauge Studies: Titration versus benchtop near-infrared analyzer, 2022PEERS/IBBC Conference (22PEE/22IBB)

Closed Circuit Reverse Osmosis • A Better Mousetrap for the Water Purification Needs of the Paper Industry, TAPPICon22

Using Novel DNA Methods to Achieve Higher Process Efficiency and Performance, TAPPICon22

Enzymatic Bio-bleaching to Elevate Final Brightness and Mitigate Pulp Reversion, TAPPICon22

Preparation of Water Redispersible Nanocellulose through Interfering Fibre-to-Fibre Interaction: the Effect of Adsorption of Water-Soluble Polysaccharides onto Fibre Surfaces, TAPPICon22

Machine Vision AI, Self-learning Process Disturbance Monitoring Device, TAPPICon22

Utilization of kraft pulp mill residuals, TAPPI Journal February 2022

ABSTRACT: Kraft pulp mills produce on average about 100 kg of solid residuals per metric ton of pulp produced. The main types of mill waste are sludge from wastewater treatment plants, ash from hog fuel boilers, dregs, grits, and lime mud from causticizing plants and lime dust from lime kilns. Of these, about half is disposed of in landfills, which highlights the need and potential for waste recycling and utilization. Sludge is either incinerated in hog fuel boilers to generate steam and power or used in various forms of land application, including land spreading, composting, or as an additive for landfill or mine waste covers. The majority of hog fuel boiler ash and causticizing plant residues is landfilled. Alkaline residuals can be conditioned for use in land application, manufacture of construction materials, and production of aggregates for road work. This technical review summarizes residuals utilization methods that have been applied in pulp and paper mills at demonstration- or full-scale, and therefore may act as a guide for mill managers and operators whose goal is to diminish the costs and the environmental impact of waste management.