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Diss Factsheets
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EC number: 432-240-0 | CAS number: 12056-51-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Endpoint summary
Administrative data
Description of key information
Additional information
Removal of Titanium during waste water treatment processes.
Two literature publications have been reviewed and summarised, with respect to the removal efficiency of Titanium during waste wtaer treatment processes.
In one investigation, the concentrations of Titanium associated with particulate phases were quite high in activated sludge systems, in one treatment works investigated. It appears that Titanium has a tendency to adsorb into biosolids. As the biomass grows through consumption of soluble carbon and other nutrients, the new biomass also appears to accumulate Ti and other influent refractory solids. The secondary clarification system efficiently settled the biosoilds. These WWTP basics explain how and why Ti-bearing materials accumulate in activated sludge biosolids and secondary clarifier settled solids. It is asserted that the WWTP in which these investigations were conducted is likely to be representative of many WWTPs across the United States. The average overall removal of Ti for the June 2008 and January 2009 samplings was 82% (+/_ 21%).
In the second publication, results were reported of a more comprehensive investigation where 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. The overrall removal efficiency was 96.1% to 99.4%, with an average removal of 98.3%.
Overall, these investigations strongly suggest that Titanium containing substances are very efficiently removed to solids during waste water treatment processes.
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.
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