Results 21 to 30 of about 1,808,636 (336)

Delignification of Lignocellulosic Biomass and Its Effect on Subsequent Enzymatic Hydrolysis

open access: yesBioResources, 2015
The effect of delignification on the enzymatic hydrolysis of biomass was investigated to determine how different delignification processes affect enzymatic hydrolysis conversion yields.
Junyeong Park   +4 more
doaj   +1 more source

Estimation of soil water retention from clay content and cation exchange capacity values of soils [PDF]

open access: yesSouth African Journal of Plant and Soil, 1993
Soil water characteristics can be estimated accurately from the clay content and cation exchange capacity (CEC) values of soils. The clay with its very large adsorption surface and CEC which reflects the negative charge of clays, is jointly responsible for adsorbing di-polar water molecules.
A. D.P. Botha, B. E. Eisenberg
openaire   +1 more source

Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]

open access: yes, 2009
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Baroni, G.   +5 more
core   +3 more sources

The effect of electromagnetic field technique on wells water hardness reducing

open access: yesTikrit Journal of Pure Science, 2023
This study was conducted on nine wells water within Kirkuk city for the period 1st July 2015 until 13th June 2016 to assess the electromagnetic field's effectiveness in groundwater purification, where the study focused on the design apparatus with ...
Mohammed Gh. Farhan   +2 more
doaj   +1 more source

Improvement of a method for the characterization of ultrafiltration membranes by measurements of tracers retention [PDF]

open access: yes, 2004
The aim of this study is to improve protocols for assessing accurate characteristic retention curve and cut-off of membranes, thus enabling the manufacture and performance of the membrane to be monitored. Different data treatments are considered in order
Aimar, Pierre   +3 more
core   +2 more sources

Characterization of ultrafiltration membranes by tracer's retention:Comparison of methods sensitivity and reproducibility [PDF]

open access: yes, 2010
Previous studies have shown that the absolute membrane cut-off and the value quoted by the manufacturers may be very different because of differences in methodologies and testing conditions.
Causserand, Christel   +5 more
core   +2 more sources

Cyclophosphamide removal from water by nanofiltration and reverse osmosis membrane [PDF]

open access: yes, 2009
The rejection of cyclophosphamide (CP) by nanofiltration (NF) and reverse osmosis (RO) membranes from ultrapure (Milli-Q) water and membrane bioreactor (MBR) effluent was investigated.
Albasi, Claire   +6 more
core   +2 more sources

Relationship between water retention values and mechanical strengths of handsheets from bleached TMP.

open access: yesJAPAN TAPPI JOURNAL, 1988
Water retention value (WRV) is a valuable parameter for papermaking, and is widely used in pulp evaluation. The purpose of present investigation is to clarify and discuss influence of WRV on the physical properties of bleached TMP, such as apparent sheet density and sheet strength. TMP fraction on 24 mesh were bleached by a NaClO/peroxides system under
Tae Soo Cho, Hisao Ishikawa
openaire   +2 more sources

Vacuum-assisted Water Removal from Highly Refined Furnishes

open access: yesBioResources, 2023
A vacuum-assisted sheet former was used for analyzing water removal from refined bleached hardwood kraft pulp furnishes. The Schopper Riegler (SR) values of the studied furnishes ranged from 43 to 97.
Antti Koponen   +4 more
doaj   +2 more sources

PREPARATION AND CHARACTERIZATION OF MICROCRYSTALLINE CELLULOSE (MCC) [PDF]

open access: yesBioResources, 2009
Cotton linters were hydrolyzed with different concentrations of HCl (2.5-15%) to prepare microcrystalline cellulose. Infrared spectroscopy and thermal analysis were used to follow the effect of hydrolysis on the molecular structure of the produced ...
Abd-Allah M. A. Nada   +3 more
doaj  

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