Inventory audit notice: TAPPI Press orders will not be processed from August 21–28 during our fiscal year-end inventory audit. Orders placed during this time will ship starting August 31, in the order received. Normal payment processing also resumes August 31.

Thanks for your patience — this helps us serve our members better.

Search

Use the search bar or filters below to find any TAPPI product or publication.

Showing 11,261–11,270 of 11,905 results (Duration : 0.02 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Collections

Journal articles
Open Access
Alkyl ketene dimer (AKD) sizing of paper under simplified tr

Alkyl ketene dimer (AKD) sizing of paper under simplified treatment conditions, TAPPI JOURNAL August 2016

Journal articles
Magazine articles
SetPoint: Rising from the Ashes, Tissue360º Fall/Winter 2016

SetPoint: Rising from the Ashes, Tissue360º Fall/Winter 2016

Journal articles
Magazine articles
PrimeService for Modern Tissue Machines: Extending Life Cycl

PrimeService for Modern Tissue Machines: Extending Life Cycle Key to Lower Costs, Tissue360º Fall/Winter 2016

Journal articles
Magazine articles
Vacuum Blower Saves 40-50 Percent Tissue Dewatering Costs, T

Vacuum Blower Saves 40-50 Percent Tissue Dewatering Costs, Tissue360º Fall/Winter 2016

Journal articles
Open Access
Effect of sheet temperature on web densification during ca

Effect of sheet temperature on web densification during calendering, TAPPI JOURNAL February 2016

Journal articles
Open Access
Support vector regression and model reference adaptive contr

Support vector regression and model reference adaptive control for optimum control of nonlinear drying process, TAPPI JOURNAL February 2016

Journal articles
Open Access
Biochemical methane potential of kraft bleaching effluent a

Biochemical methane potential of kraft bleaching effluent and codigestion with other in-mill streams, TAPPI JOURNAL February 2016

Journal articles
Open Access
Causes of back-trap mottle in lithographic offset prints on

Causes of back-trap mottle in lithographic offset prints on coated papers, TAPPI JOURNAL February 2016

Journal articles
Magazine articles
Open Access
A case study review of wood ash land application programs in North America, TAPPI Journal February 2021

ABSTRACT: Several regulatory agencies and universities have published guidelines addressing the use of wood ash as liming material for agricultural land and as a soil amendment and fertilizer. This paper summarizes the experiences collected from several forest products facility-sponsored agricultural application programs across North America. These case studies are characterized in terms of the quality of the wood ash involved in the agricultural application, approval requirements, recommended management practices, agricultural benefits of wood ash, and challenges confronted by ash generators and farmers during storage, handling, and land application of wood ash.Reported benefits associated with land-applying wood ash include increasing the pH of acidic soils, improving soil quality, and increasing crop yields. Farmers apply wood ash on their land because in addition to its liming value, it has been shown to effectively fertilize the soil while maintaining soil pH at a level that is optimal for plant growth. Given the content of calcium, potassium, and magnesium that wood ash supplies to the soil, wood ash also improves soil tilth. Wood ash has also proven to be a cost-effective alternative to agricultural lime, especially in rural areas where access to commercial agricultural lime is limited. Some of the challenges identified in the review of case studies include lengthy application approvals in some jurisdictions; weather-related issues associated with delivery, storage, and application of wood ash; maintaining consistent ash quality; inaccurate assessment of required ash testing; potential increased equipment maintenance; and misconceptions on the part of some farmers and government agencies regarding the effect and efficacy of wood ash on soil quality and crop productivity.

Journal articles
Magazine articles
Open Access
Continuous tannin extraction by use of screw reactor, TAPPI Journal February 2021

ABSTRACT: A pilot-size screw reactor (extraction unit) was used for tannin extraction of spruce. Yield of the same magnitude or better was obtained when comparing a screw reactor with batch reactors. A longer presoaking time in water seemed to be better than a short one for obtaining higher yield. A higher yield is obtained with lower dry-water ratio, which suggests that the internal diffusion in bark does not determine mass transfer as much as is the case without presoaking of bark. The higher dry-water ratio decreased the yield. The prior soaking of the bark also minimized the mechanical reactor feeding problems (clogging). The benefits of a screw reactor likely are that run time changes for different process conditions are flexible; it simplifies design and construction of an industrial unit for tannin production; and it saves space because of the need for fewer and smaller intermediate storage tanks.

Inside this Section