Results 161 to 170 of about 7,276 (219)
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Bioresource Technology, 2016
This study conducted a completely autotrophic nitrogen removal over nitrite (CANON) process in a continuous anoxic upflow bioreactor to treat synthetic wastewater with TMAH (tetramethylammonium hydroxide) ranging from 200 to 1000mg/L. The intermediates were analyzed for understanding the metabolic pathway of TMAH biodegradation in CANON process.
Shen‐Yi Chen, Li-An Lu, Jih‐Gaw Lin
semanticscholar +5 more sources
This study conducted a completely autotrophic nitrogen removal over nitrite (CANON) process in a continuous anoxic upflow bioreactor to treat synthetic wastewater with TMAH (tetramethylammonium hydroxide) ranging from 200 to 1000mg/L. The intermediates were analyzed for understanding the metabolic pathway of TMAH biodegradation in CANON process.
Shen‐Yi Chen, Li-An Lu, Jih‐Gaw Lin
semanticscholar +5 more sources
Efficient adsorptive removal of Tetramethylammonium hydroxide (TMAH) from water using graphene oxide
Separation and Purification Technology, 2014Abstract High concentrations of Tetramethylammonium hydroxide (TMAH) can be found in wastewater from Thin-Film Transistor Liquid Crystal Display and semiconductor manufacturing processes. To treat this corrosive and toxic pollutant, the current biological wastewater treatment processes are still not satisfactorily effective. Therefore, graphene oxide
Shenteng Chang, K. Lin, Chungsying Lu
semanticscholar +4 more sources
Organic Geochemistry, 1996
Tetramethylammonium hydroxide (TMAH) thermochemolysis has been applied to the diagenetically resistant aliphatic biopolymer cutan derived from the leaf cuticles of Agave americana. Data obtained from the cutan sample using this new analytical method are vastly different in comparison with conventional flash pyrolysis data of the same sample.
D. McKinney +5 more
semanticscholar +4 more sources
Tetramethylammonium hydroxide (TMAH) thermochemolysis has been applied to the diagenetically resistant aliphatic biopolymer cutan derived from the leaf cuticles of Agave americana. Data obtained from the cutan sample using this new analytical method are vastly different in comparison with conventional flash pyrolysis data of the same sample.
D. McKinney +5 more
semanticscholar +4 more sources
Chemosphere
Tetramethylammonium hydroxide (TMAH), which is a chemical used in the electronic industry, is classified as a hazardous material (HAZMAT class 8) that threatens aquatic ecosystems and human health.
Hee-Jun Kim +5 more
semanticscholar +5 more sources
Tetramethylammonium hydroxide (TMAH), which is a chemical used in the electronic industry, is classified as a hazardous material (HAZMAT class 8) that threatens aquatic ecosystems and human health.
Hee-Jun Kim +5 more
semanticscholar +5 more sources
International Journal of Coal Geology, 1996
Abstract Seven samples of peatified and coalified wood, varying in rank from peat to subbituminous coal, have been analyzed using a new technique: thermochemolysis with tetramethylammonium hydroxide (TMAH). The preserved lignin in the coal undergoes thermochemolysis reactions when subjected to treatment with TMAH at 300°C for 10 min, yielding a ...
D. McKinney, P. Hatcher
semanticscholar +4 more sources
Abstract Seven samples of peatified and coalified wood, varying in rank from peat to subbituminous coal, have been analyzed using a new technique: thermochemolysis with tetramethylammonium hydroxide (TMAH). The preserved lignin in the coal undergoes thermochemolysis reactions when subjected to treatment with TMAH at 300°C for 10 min, yielding a ...
D. McKinney, P. Hatcher
semanticscholar +4 more sources
Organic Geochemistry, 1999
Abstract The mechanism by which heated tetramethylammonium hydroxide (TMAH) degrades the lignin biopolymer was investigated by the novel application of 13C-labeled TMAH (13C-TMAH) in the thermochemolysis of a synthetic model guaiacyl lignin dimer. GC-MS analysis of the products showed labeling patterns consistent with a base-catalyzed intramolecular ...
T. Filley +3 more
semanticscholar +4 more sources
Abstract The mechanism by which heated tetramethylammonium hydroxide (TMAH) degrades the lignin biopolymer was investigated by the novel application of 13C-labeled TMAH (13C-TMAH) in the thermochemolysis of a synthetic model guaiacyl lignin dimer. GC-MS analysis of the products showed labeling patterns consistent with a base-catalyzed intramolecular ...
T. Filley +3 more
semanticscholar +4 more sources
Organic Geochemistry, 1995
Abstract Flash pyrolysis in the presence of tetramethylammonium hydroxide (TMAH) has been utilized for the characterization of lignin in a gymnosperm (pine), angiosperm (alder), and nonwoody ( Juncus effusus L.) vascular plant tissue. The gymnosperm tissue yielded primarily methylated guaiacyl derivatives resulting from cleavage of lignin β-O-4 ...
D. Clifford +4 more
semanticscholar +4 more sources
Abstract Flash pyrolysis in the presence of tetramethylammonium hydroxide (TMAH) has been utilized for the characterization of lignin in a gymnosperm (pine), angiosperm (alder), and nonwoody ( Juncus effusus L.) vascular plant tissue. The gymnosperm tissue yielded primarily methylated guaiacyl derivatives resulting from cleavage of lignin β-O-4 ...
D. Clifford +4 more
semanticscholar +4 more sources
Journal of Hazardous Materials, 2020
In this study, we used a nano-ozone bubble to enhance the efficiency of the ozone/H2O2 process for the degradation of tetramethylammonium hydroxide (TMAH) found in semiconductor wastewater at high levels.
Tae-Kyoung Kim +4 more
semanticscholar +3 more sources
In this study, we used a nano-ozone bubble to enhance the efficiency of the ozone/H2O2 process for the degradation of tetramethylammonium hydroxide (TMAH) found in semiconductor wastewater at high levels.
Tae-Kyoung Kim +4 more
semanticscholar +3 more sources