Results 261 to 270 of about 705,668 (290)

Enzymatic Hydrolysis of Waste Office Paper Using Viscosity as Operating Parameter

Biotechnology Progress, 2001
AbstractEnzymatic hydrolysis of waste office (WO) paper with feeding WO paper in a reactor was investigated using apparent viscosity as operating parameter. Since the apparent viscosity was correlated with the concentration of pulping WO paper, the amount of hydrolyzed WO paper was assumed by measuring the decrease in the apparent viscosity.
E Y, Park, A, Michinaka, N, Okuda
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Comparison of morphological properties waste paper fibers from newspaper and office paper types

Известия СПбЛТА, 2023
Представлены сравнительные результаты научных исследований структурно-морфологических свойств макулатурной массы после флотации с предварительным мокрым и сухим роспуском. В качестве макулатуры использовалась газетная бумага и офисная бумага с печатью. Известно, что эти виды макулатуры существенно различаются по качеству и цене, так как бумажная масса,
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Enzymatic deinking of office waste printed paper: optimization via response surface methodology

Biomass Conversion and Biorefinery, 2021
In traditional deinking process, large amounts of chemicals are required which makes these methods expensive and polluting. Also, application of sustainable material implies the use of green processes to reduce waste and pollution. Green enzymatic deinking processes are alternatives to those technologies that have negative effects on the environment ...
Bahareh Ghanbarzadeh, Maryam Ataeefard, Seyed Masoud Etezad, Saeed Mahdavi   +3 more
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Biological deinking technology for the recycling of office waste papers

Bioresource Technology, 1999
Abstract Results of the enzymatic deinking approach were demonstrated on a laboratory scale to provide a good quality deinked pulp from laser-printed alkaline office paper wastes. It has been suggested that, for alkaline papers, the majority of inks are localised on the paper coatings and fillers consisting mainly of CaCO3.
U. Viesturs, M. Leite, M. Eisimonte, T. Eremeeva, A. Treimanis   +4 more
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A pollution reducing enzymatic deinking approach for recycling of mixed office waste paper

Environmental Science and Pollution Research, 2020
The efficiency of xylano-pectinolytic enzymes, co-produced by a single microbial strain Bacillus pumilus, was analysed for the recycling of mixed office waste paper through deinking and compared with the alkaline chemical deinking method. Enzymes showed maximum deinking at pH 8.5, pulp consistency of 10%, xylanase-pectinase dose of 12 and 4 IU per gram
Avtar Singh, Libin M. Varghese, Ravi Dutt Yadav, Ritu Mahajan   +3 more
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Bioconversion of waste office paper to hydrogen using pretreated rumen fluid inoculum

Bioprocess and Biosystems Engineering, 2016
In this study, a microbial consortium from an acid-treated rumen fluid was used to improve the yields of H2 production from paper residues in batch reactors. The anaerobic batch reactors, which contained paper and cellulose, were operated under three conditions: (1) 0.5 g paper/L, (2) 2 g paper/L, and (3) 4 g paper/L. Cellulase was added to promote the
Lívia Silva, Botta, Regiane Priscila, Ratti, Isabel Kimiko, Sakamoto, Lucas Rodrigues, Ramos, Edson Luiz, Silva, Maria Bernadete Amâncio, Varesche   +5 more
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Synthesis and characterization of carboxymethyl cellulose from office waste paper: A greener approach towards waste management

Waste Management, 2015
In the present study, functionalization of mixed office waste (MOW) paper has been carried out to synthesize carboxymethyl cellulose, a most widely used product for various applications. MOW was pulped and deinked prior to carboxymethylation. The deinked pulp yield was 80.62 ± 2.0% with 72.30 ± 1.50% deinkability factor.
Gyanesh, Joshi, Sanjay, Naithani, V K, Varshney, Surendra S, Bisht, Vikas, Rana, P K, Gupta   +5 more
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Study of Flotation Deinking of Old Magazine and Mixed Office Waste Paper

Advanced Materials Research, 2012
The effect of flotation parameters such as flotation consistency, temperature, flotation time, air to pulp ratio, and velocity of pulp flow (turbulence level) on OMG/MOW deinking efficiency was studied by using a high-consistency laboratory pulper and a laboratory deinking cell. The optimized flotation conditions were: flotation consistency 1.1%, 40°C,
Rong Gang Li, Xiao Feng Xie, Chuan Shan Zhao   +2 more
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Enzymatic deinking of laser printed office waste papers: Some governing parameters on deinking efficiency

Bioresource Technology, 2007
The protocol for the enzymatic deinking of laser printed waste papers on a laboratory scale using cellulase (C) and hemicellulase (H) of Aspergillus niger (Amano) was developed as an effective method for paper recycling. A maximum deinking efficiency of almost 73% by the enzyme combination of C:H was obtained using the deinking conditions of pulping ...
C K, Lee, I, Darah, C O, Ibrahim
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Bioconversion of waste office paper to ?(+)-lactic acid by the filamentous fungus Rhizopus oryzae

Bioresource Technology, 2004
L(+)-lactic acid production was investigated using an enzymatic hydrolysate of waste office automation (OA) paper in a culture of the filamentous fungus Rhizopus oryzae. In 4 d culture, 82.8 g/l glucose, 7 g/l xylose, and 3.4 g/l cellobiose contained in the hydrolysate were consumed to produce 49.1 g/l of lactic acid.
Enoch Y, Park, Pham Ngoc, Anh, Naoyuki, Okuda   +2 more
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