Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-465-2 | CAS number: 121-33-5
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- disregarded due to major methodological deficiencies
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study well documented, meets generally accepted scientific principles.
Data source
Reference
- Reference Type:
- publication
- Title:
- Identification of organic compounds in unbleached treated kraft paper mill wastewaters.
- Author:
- KEITH LH
- Year:
- 1 976
- Bibliographic source:
- Environ. Sci. Technol., 10 (6),555-564.
Materials and methods
- Principles of method if other than guideline:
- GC-MS analysis of paper mill wastewater before and after treatment
- GLP compliance:
- not specified
- Type of measurement:
- concentration at contaminated site
- Media:
- other: kraft paper mill wastewaters
Test material
- Reference substance name:
- Vanillin
- EC Number:
- 204-465-2
- EC Name:
- Vanillin
- Cas Number:
- 121-33-5
- Molecular formula:
- C8H8O3
- IUPAC Name:
- 1-butoxypropan-2-ol
- Details on test material:
- no data
Constituent 1
Study design
- Details on sampling:
- - Geographic coordinates: Georgia, US
- Known emission sources near sampling site: paper mills
- Period of sampling: 1974 (three-day composite samples)
- Sampling:
Two different effluent paper mills were sampled. Paper mills were characterised by similar process but different waste treatment.
* Paper Mill "A"; 49 000 metre-square of water passed through the treatment system daily. The wastewater treatment system was: Raw influent /
primary clarifier (5 hours) / trickling biofilter and secondary clarifier (3h) / aerated lagoon (2 days) = Treated effluent.
* Paper Mill "B"; 21 000 metre-square of water passed through the treatment system daily. The wastewater treatment system was: Raw influent /
lime floculation (40 min) / clarifier (6-8 h) / quiescent storage basin (3-6 months) = Treated effluent.
Three-day composite samples, composed of equal volumes, were collected both for raw and treated effluents for both paper mills.
- Sample storage before analysis:
Effluent samples were placed in polyethylene plastic containers, immediately frozen and stored at -10 deg.C until analysis
Results and discussion
Any other information on results incl. tables
The analytical data obtained for 3-day composite samples were in mg/l:
Paper mill "A" Paper mill "B"
Raw effluent 0.844 1.268
Treated effluent 0.291 0.092
Treatment efficiency (%) 65 93
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
