Effect of oxygen delignification process on the lignin content and wastewater quality from kraft-pulped Eucalyptus pellita

Aria Darmawan, Yanuar Ananda Putri Ramadhan, Nita Rahayu Dewi, Hikmatun Ni'Mah*, Achmad Roesyadi, Firman Kurniawansyah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The aim of this research is to observe the decrease in lignin content and wastewater quality from oxygen delignification process of kraft-pulped Eucalyptus pellita. In pulp production, conventional kraft cooking is carried out with five active alkali charge (16%, 17%, 18%, 19%, and 20%), with 25% sulfidity in addition to H factor of 800. Oxygen delignification occurs in medium consistency (10%) and 2 bar oxygen pressure, in addition to delignification with an alkaline charge of 20 g/L and a temperature of 85°C. In the kraft pulping process, the increase of alkali active causes a decrease in lignin levels. In the next process, oxygen delignification shows that longer reaction time causes a decrease in the levels of lignin, COD, and BOD5. The information from this study will be helpful to the future implementation of kraft pulping integrated with oxygen delignification process in actual pulp mill applications of Eucalytus pellita.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Conference on Chemical Process and Product Engineering, ICCPPE 2019
EditorsLuqman Buchori, Aprilina Purbasari, Dessy Ariyanti
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419483
DOIs
Publication statusPublished - 2 Jan 2020
Event2nd International Conference on Chemical Process and Product Engineering 2019, ICCPPE 2019 - Semarang, Indonesia
Duration: 25 Sept 201926 Sept 2019

Publication series

NameAIP Conference Proceedings
Volume2197
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference on Chemical Process and Product Engineering 2019, ICCPPE 2019
Country/TerritoryIndonesia
CitySemarang
Period25/09/1926/09/19

Keywords

  • eucalyptus
  • lignin content
  • oxygen delignification
  • wastewater quality

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