Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 432-240-0 | CAS number: 12056-51-8
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- Samples collected between April and August 2009
- Reliability:
- 2 (reliable with restrictions)
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- publication
- Title:
- Occurrence and removal of titanium at full scale wastewater treatment plants: implications for TiO2 nanomaterials
- Author:
- Westerhoff, P. Song, G. Hristovski, K. Kiser, A.
- Year:
- 2 011
- Bibliographic source:
- J. Environ. Monit., 13, 1195
Materials and methods
- Principles of method if other than guideline:
- Titanium concentrations in raw sewage and treated effluent were determined for 10 representative WWTPs. This enabled a removal rate for Titanium to be calculated.
- GLP compliance:
- no
- Type of measurement:
- other: concentrations at different stages within a waste water treatment plant
- Media:
- other: raw sewage and treated WWTP effleunt
Study design
- Details on sampling:
- Samples were collected from 10 full-scale municipal WWTPs from southern to central Arizona (USA). The facilities ranged in size, with flows 0.1 to 7 m3/s. The WWTPs employed a range of different biological treatment processes: conventional activated sludge, trickling filter, microfiltration, membrane bioreactor, nitrification/denitrification, or various combinations. Grab samples were collected from the headworks and effluent (prior to disinfection) at each WWTP.
Results and discussion
- Details on results:
- The influent Titanium concentration averaged 377 µg/L (median of 321 µg/L, 26 samples) and ranged from 181 to 1233 µg/L. Titanium concentrations in treated effluent were significantly lower than those at the headworks. The overrall removal efficiency was 96.1% to 99.4%, with an average removal of 98.3%.
Applicant's summary and conclusion
- Conclusions:
- Removal of Titanium by WWTPs, from municipal waste streams, was found to be high (average removal 98.3%) across a range of different waste water treatment methodologies.
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.
