Shear Characteristics of Geomaterials Mixed with Fibrous Wood Chip and Converter Steelmaking Slag

Author(s):  
Tomotaka Yoshikawa ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Akihiro Oshino
Author(s):  
Akio TAKADA ◽  
Yuka KAKIHARA ◽  
Yoshiaki KIKUCHI ◽  
Shohei NODA ◽  
Takamune YAMAGUCHI ◽  
...  

2020 ◽  
Vol 8 (2) ◽  
pp. 17-22
Author(s):  
Tomotaka Yoshikawa ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Yuka Kakihara ◽  
Akihiro Oshino ◽  
...  

2020 ◽  
Vol 8 (2) ◽  
pp. 1-6
Author(s):  
Yuka Kakihara ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Takamune Yamaguchi ◽  
Risa Tomimatsu ◽  
...  

2021 ◽  
Vol 9 (6) ◽  
pp. 296-301
Author(s):  
Yuka Kakihara ◽  
Yoshiaki Kikuchi ◽  
Shohei Noda ◽  
Takamune Yamaguchi ◽  
Risa Tomimatsu ◽  
...  

TAPPI Journal ◽  
2011 ◽  
Vol 10 (5) ◽  
pp. 21-28 ◽  
Author(s):  
CARL HOUTMAN ◽  
ERIC HORN

Pilot data indicate that wood chip pretreatment with oxalic acid reduced the specific energy required to make thermomechanical pulp. A combined oxalic acid/bisulfite treatment resulted in 21% refiner energy savings and 13% increase in brightness for aspen. A low level of oxalic acid treatment was effective for spruce. Energy savings of 30% was observed with no significant change in strength properties. Adding bisulfite did not significantly increase the brightness of the spruce pulp. For pine, the optimum treatment was a moderate level of oxalic acid, which resulted in 34% energy savings and an increase in strength properties. For all of these treatments 1–3 w/w % carbohydrates were recovered, which can be fermented to produce ethanol. The extract sugar solution contained significant quantities of arabinose.


TAPPI Journal ◽  
2009 ◽  
Vol 8 (5) ◽  
pp. 19-25 ◽  
Author(s):  
PETER W. HART ◽  
DARRELL M. WAITE ◽  
LUC THIBAULT, ◽  
JOHN TOMASHEK ◽  
MARIE-EVE ROUSSEAU ◽  
...  

Eucalyptus wood chips were subjected to impregnation with various blends of novel fiber modify-ing enzymes before chemical pretreatment and two stages of refining using the preconditioning refiner chemical–alkaline peroxide mechanical pulping (PRC-APMP) process. Wood chip impregnation and pulp processing was con-ducted at a pilot plant in the United States. When compared under constant chemical application and at a constant 350 mL CSF, enzyme treatment reduced specific refining energy by at least 24%. The effect of one versus two stages of impregnation and of enzyme action upon several physical pulp properties was determined.


2017 ◽  
Vol 2 (77) ◽  
Author(s):  
N.N. Sinitsyn ◽  
D.S. Revyakina ◽  
D.S. Prokopeva ◽  
A.A. Kostyleva ◽  
V.V. Plashenkov

Author(s):  
Yury Rubanov ◽  
Yury Rubanov ◽  
Yulia Tokach ◽  
Yulia Tokach ◽  
Marina Vasilenko ◽  
...  

There was suggested a method of obtaining a complex adsorbent with magnetic properties for the oil spill clean-up from the water surface by means of controlled magnetic field. As magnetic filler a finely-dispersed iron-ore concentrate in the form of magnetite, obtained by wet magnetic separation of crushed iron ore, was suggested. As an adsorbing component the disintegrating electric-furnace steelmaking slag, obtained by dry air-cooling method, was selected. The mass ratio of components slag:magnetite is 1(1,5÷2,0). For cleaning up emergency oil spills with the suggested magnetic adsorbent a facility, which is installed on a twin-hulled oil recovery vessel, was designed. The vessel contains a rectangular case between the vessel hulls with inlet and outlet for the treated water, the bottom of which is a permanently moving belt. Above the belt, at the end point of it there is an oil-gathering drum with magnetic system. The adsorbent is poured to oil-products layer from a hopper, provided with drum feeder. Due to the increased bulk weight the adsorbent sinks rapidly into the oil layer on the water surface. If the large non-floating flocculi are formed, they sink and sedimentate on the moving belt and are moved to the oil-gathering drum. The saturated adsorbent is removed from the drum surface with a scraper, connected with a gutter, with contains a rotating auger.


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