Registration Dossier

Environmental fate & pathways

Mode of degradation in actual use

Currently viewing:

Administrative data

Endpoint:
mode of degradation in actual use
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
Up to 1985
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Results not relevant

Data source

Reference
Reference Type:
other: Journal article
Title:
Anaerobic biological decomposition of malodorous compounds in kraft pulping wastewater.
Author:
ENDO, G. and TOHYA, Y.
Year:
1985
Bibliographic source:
Wat. Sci. Technol., 17, 39-52.

Materials and methods

Principles of method if other than guideline:
In this investigation, the capability and performance of anaerobic biological decomposition of malodorous compounds (dimethyl sulfide, dimethyl disulfide, methyl mercaptan, H2S) in kraft pulping waste stream drains were studied.
GLP compliance:
no
Type of study / information:
no data reported

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
no data reported

Results and discussion

Any other information on results incl. tables

The results obtained showed that the sulphur containing malodorous compounds can be removed by anaerobic digestion system, combined with an alkaline scrubbing process of digester gas. It was shown that DMS could not be decomposed by thermophilic anaerobic fermentation.

Applicant's summary and conclusion

Conclusions:
DMS could not be removed biologically from kraft pulping wastewater by an anaerobic digester sludge.
Executive summary:

Endo (1985) is a non-GLP-compliant, non-guideline study following scientific principles, investigating the capability and performance of anaerobic biological decomposition of malodorous compounds in kraft pulping drains. The results of the study are not considered relevant so the study has only been used as a supporting study.