SIMULTANEOUS PRECIPITATION IN AN ECF KRAFT PULP MILL: LONG-TERM EXPERIENCES, 19PEERS



Long-term experiences of simultaneous precipitation (SP) of phosphorus using ferric sulfate in the secondary treatment of softwood ECF kraft pulp mill wastewater were examined from a time period of 7 years. Phosphorus reduction in an activated sludge process (ASP) was improved from monthly average level 43%-67% to 72-84% by adding ferric iron in the aeration basin. Due to periodic changes in wastewater qualities, the demand for iron addition to wastewater varied between 0 and 10 mgFe/L, depending mainly on influent P/BOD7 ratio.   

Introduction of SP has not caused any notable disadvantages to daily wastewater treatment plant operation, excluding minor increase of total sludge production. Experiences and conclusions from long-term operation were similar to our preliminary findings from pilot-scale and short-term full-scale studies. Thus, it can be verified, that SP offers an alternative to decrease phosphorus discharges from pulp mill ASP instead of more expensive tertiary treatments. 

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.
Picture of the productSIMULTANEOUS PRECIPITATION IN AN ECF KRAFT PULP MILL: LONG-T
SIMULTANEOUS PRECIPITATION IN AN ECF KRAFT PULP MILL: LONG-TERM EXPERIENCES, 19PEERS

Regular price: 30.00
Discounted member price: 10.00
Quantity   

 View Cart

New Releases

 

TAPPI Press Catalog




See More

 

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

 

Nanocellulose End Users Guide and Perspectives Set


Together, the two books form a complete set, and provide an in-depth study of the market for cellulose nanomaterials with critical insights for producers, processors, and end users.

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