Characterization of high molecular mass material in ECF and TCF bleaching liquors by Py-GC/MS with and without TMAH methylation

Kukkola, Jukka; Knuutinen, Juha; Paasiv́irta, Jaakko; Herve, Sirpa; Pessala, Piia; Schultz, Eija

doi:10.1016/j.jaap.2005.11.006

Cited by 13 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The possible number of compounds present in rayon grade PPME, high molecular weight compounds, di, tri terpenoids, surfactants, coagulants, resin acids, aliphatic acids which are known toxicants. 32,33 The GC-MS data showed degradation of complex toxic compounds and generation of low molecular weight simpler compounds. Larger phenolic polymers cleaved to form phenyl units, which further reduced to form aliphatic compounds by ring cleavage, which resulted in the decolourization of PPME.…”

Section: Metabolites Characterizationmentioning

confidence: 99%

Effect of bacterial inoculum ratio in mixed culture for decolourization and detoxification of pulp paper mill effluent

Chandra

Singh

Yadav

2012

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

Section: Metabolites Characterizationmentioning

confidence: 99%

Effect of bacterial inoculum ratio in mixed culture for decolourization and detoxification of pulp paper mill effluent

Chandra

Singh

Yadav

2012

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Presently, ECF and TCF bleaching methods have been studied and developed extensively 20 . One of the most developed bleach agents is those produced with hydrogen peroxide based materials, such as peracetic acid and alkaline hydrogen peroxide.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Arnata¹,

Suprihatin²,

Fahma³

et al. 2019

Orient. J. Chem

View full text Add to dashboard Cite

Sago frond is a lignocellulose waste that it has not been utilized optimally. The purpose of this study was to produce cellulose from sago frond with alkaline delignification and bleaching on various types of bleach agents. The study was conducted in three stages, namely a characterization of sago frond, alkaline delignification, and bleaching. Proximate analysis showed that sago fronds are potentially used as a cellulose source. The treatments of alkaline delignification and bleaching on various types of bleach agents significantly affected the characteristics of cellulose. The delignification using 10% NaOH for 2 h, after which the bleaching was carried out using the alkaline hydrogen peroxide for the same duration, thereby, producing cellulose of the highest degree of crystallinity and whiteness, while the hemicellulose and lignin contents were relatively low. Thus, sago frond has the potential to be used as a cellulose source and is widely applied.

show abstract

“…Pyrolysis (Py)-GC/MS was suggested for the analysis of HMW compounds in pulp bleaching effl uents (Ristolainen et al 1999 ). Esterifi cation with tetramethylammonium hydroxide (TMAH) (Kukkola et al 2006 ) was done before Py-GC/MS. Headspace (HS)-GC/MS is a specifi c technique for analysis of volatile compounds.…”

Section: Introductionmentioning

confidence: 99%

Degradation products of lignocellulosics in pulp mill effluents – comparison and evaluation of different gas chromatographic techniques for a comprehensive analysis

et al. 2012

View full text Add to dashboard Cite

Pulp mill effl uents contain potentially valuable compounds and will gain even greater importance than today in future biorefi nery scenarios as possible resources. Analysis of effl uents of process streams is not straightforward because of the vast variety of substances embedded in the complex inorganic matrix of high concentration. In the present comparative investigation, different combinations of gas chromatography (GC) and derivatisation techniques were tested and critically evaluated aiming at a comprehensive description of all major compound classes (low-molecular weight and long-chain carboxylic acids, lignin fragments, carbohydrates and aldehydes). As derivatisation techniques, trimethylsilylation, (trimethyl silyl)methylation and methylation were applied. In addition, the effl uents were analysed by pyrolysis-GC/mass spectrometry (MS), either directly or with simultaneous methylation. The study provides comprehensive information on the composition of effl uents, the suitability of the various combinations of derivatisation and GC/MS techniques. The discrimination effects of the different approaches are compared. The comprehensive analytical approach led to a coherent balance in terms of the contribution of the major portion of organic compounds to the total organic carbon (TOC) content in pulp mill effl uents.

show abstract

Characterization of high molecular mass material in ECF and TCF bleaching liquors by Py-GC/MS with and without TMAH methylation

Cited by 13 publications

References 27 publications

Effect of bacterial inoculum ratio in mixed culture for decolourization and detoxification of pulp paper mill effluent

Effect of bacterial inoculum ratio in mixed culture for decolourization and detoxification of pulp paper mill effluent

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Degradation products of lignocellulosics in pulp mill effluents – comparison and evaluation of different gas chromatographic techniques for a comprehensive analysis

Contact Info

Product

Resources

About