Results 11 to 20 of about 1,972,336 (231)

A constructed alkaline consortium and its dynamics in treating alkaline black liquor with very high pollution load. [PDF]

open access: yesPLoS ONE, 2008
Paper pulp wastewater resulting from alkaline extraction of wheat straw, known as black liquor, is very difficult to be treated and causes serious environmental problems due to its high pH value and chemical oxygen demand (COD) pollution load.
Chunyu Yang   +8 more
doaj   +1 more source

Enhancing the Energy Efficiency of a Black Liquor Evaporation Plant by Mechanical Vapor Recompression Integration

open access: yesEngineering Proceedings, 2023
Black-liquor-thickening in an integrated multi-effect evaporation plant consumes substantial amounts of steam produced in pulp and paper mills, and its efficient operation is, thus, crucial.
Miroslav Variny
doaj   +1 more source

Generation of Hydrogen, Lignin and Sodium Hydroxide from Pulping Black Liquor by Electrolysis

open access: yesEnergies, 2015
Black liquor is generated in Kraft pulping of wood or non-wood raw material in pulp mills, and regarded as a renewable resource. The objective of this paper was to develop an effective means to remove the water pollutants by recovery of both lignin and ...
Guangzai Nong   +2 more
doaj   +1 more source

Fragmentation of Lignin from Organosolv Black Liquor by White Rot Fungi

open access: yesBioResources, 2015
The mycelial growth ability of 13 white rot fungi were separately evaluated in kraft, organosolv, and soda black liquor agar-plates. The fungus able to best grow and decolorize black liquor agar-plates was grown in organosolv black liquor to investigate ...
Djanira Rodrigues Negrão   +6 more
doaj   +1 more source

Pemanfaatan Limbah Pretreatment Dalam Produksi Bioetanol Dari Lignoselulosa Untuk Me-Recovery Fine Chemicals Dengan Proses Pirolisa

open access: yesReaktor, 2016
UTILIZATION OF PRETREATMENT WASTE DURING PRODUCTION OF BIOETHANOL FROM LIGNOCELLULOSIC MATERIALS FOR RECOVERY FINE CHEMICALS BY PYROLYSIS. In production of second generation bioethanol by utilizing lignocelluloses as raw material, black liquor was ...
Dieni Mansur   +2 more
doaj   +1 more source

Investigation of Thermal Analysis Techniques Potential to Determine Solids Content in Eucalyptus Black Liquor Samples

open access: yesChemical Engineering Transactions, 2012
In pulp and paper mills, the aqueous solution extracted from the pulping process in the wood digester is called black liquor, which consists of organic and inorganic compounds. When leaving the digester sector, black liquor has about 15 wt% of solids and
B.S. Leite   +3 more
doaj   +1 more source

Effects of Fermentation Temperature and Time on the Color Attributes and Tea Pigments of Yunnan Congou Black Tea

open access: yesFoods, 2022
Yunnan Congou black tea (YCBT) is a typical black tea in China, and is rich in theaflavins (TFs), thearubigins (TRs), and theabrownins (TBs). However, the influence of the fermentation temperature and time on the liquor and appearance color and the ...
Jiayi Zhu   +6 more
doaj   +1 more source

Using Black Liquor from the Soda Pulping Process for Protein Production by Candida utilis

open access: yesBioResources, 2015
Black liquor produced from pulping with a high value of chemical oxygen demand (COD) and biological oxygen demand (BOD) is highly harmful if discharged into the environment directly.
Zebo Hu   +4 more
doaj   +1 more source

Solids Content of Black Liquor Measured by Online Time-Domain NMR

open access: yesApplied Sciences, 2019
Black liquor, a valuable by-product of the pulp production process, is used for the recovery of chemicals and serves as an energy source for the pulp mill.
Ekaterina Nikolskaya   +3 more
doaj   +1 more source

Effects of Metal Chlorides on the Solubility of Lignin in the Black Liquor of Prehydrolysis Kraft Pulping

open access: yesBioResources, 2014
The effects of CaCl2, MgCl2, FeCl3, NaCl, and AlCl3 on the solubility of lignin in the prehydrolysis kraft black liquor of Masson pine were studied using a focused-beam reflectance measurement (FBRM) instrument and UV spectra.
Liang He   +3 more
doaj   +1 more source

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