Determining wash loss levels in the brown stock pulp washing line using different methods, 2016 Pulping, Engineering, Environmental, Recycling, Sustainability (PEERS) Conference Proceedings


The purpose of brown stock pulp washing is to remove soluble impurities from a pulp suspension, recover cooking chemicals and incinerate organics for energy recovery. Brown stock washing is a notable sub-process in chemical pulping because it has effects on the subsequent treatments of the pulp, and it is also the first step in the chemical recovery cycle. Without effective washing, the economic viability of chemical pulp production is affected.

The performance of washing can be controlled in two main ways: using wash loss, which describes the amount of washable compounds in the pulp suspension which could have been removed in washing; or the dilution factor, which represents the net amount of water that is added during washing. The amount of sodium in the pulp suspension after washing has typically been used as an indicator of wash loss, usually expressed as kg Na2SO4/oven dry ton of washed pulp. Other common measurement methods are conductivity, COD, TOC, dissolved dry solids and lignin concentration. 

TAPPI conference proceedings and presentations, technical papers, and publication articles provide technical and management data and solutions on topics covering the Pulp, Paper, Tissue, Corrugated Packaging, Flexible Packaging, Nanotechnology and Converting Industries.

Simply select the quantity, add to your cart and your conference paper, presentation or article will be available for immediate download.

Author: Riku Kopra and Olli Dahl
Determining wash loss levels in the brown stock pulp washing
Determining wash loss levels in the brown stock pulp washing line using different methods, 2016 PEERS
30.00

New Releases

 

Kraft Recovery Boilers, Third Edition  


Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.


Purchase


 

Handbook For Pulp and Paper Technologists (The SMOOK Book), Fourth Edition

The best-selling text to introduce the entire technology of pulp and paper manufacture.

Purchase

 

Guidelines for Safe Assessment and Operation of Yankee Dryers  


A project of the Yankee Dryer Safety & Reliability Committee.

Purchase

 

Check our newest additions.


TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries. 

See More

   
 

Available for Purchase – Conference Proceedings


TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.

See More