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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

additional information on environmental fate and behaviour
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
other information
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data are given, the study meets basic scientific principles.

Data source

Reference Type:
Ergebnisse des Grossversuches - Einsatz eines Zeolith A-haltigen Waschmittels - in Stuttgart-Büsnau
Wagner R
Bibliographic source:
Die Prüfung des Umweltverhaltens von Na-Al-Silikat Zeolith A als Phosphatersatzstoff in Wasch- und Reinigungsmitteln. Umweltbundesamt, Materialien 4/79, Erich Schmidt Verlag, Berlin, 58-71

Materials and methods

Principles of method if other than guideline:
Test type: field experiment on removal of zeolite A in wastewater treatment
Test duration: 14 months
Test location: municipal sewage treatment plant, Büsnau (Germany), activated sludge process
Test temperature: ambient
Investigated parameters: COD, BOD, phosphorus, nitrogen, ammonia, elimination
Type of study / information:
Sewage treatment

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
- Zeolite A (Sasil, sodium aluminium silicate), doped with indium to render zeolites accessible to neutron activation analysis.
- Chemical name: Zeolite, cuboidal, crystalline, synthetic, non-fibrous
- Framework: cuboidal
- Related CAS No. 1318-02-1

Results and discussion

Any other information on results incl. tables

The average overall removal rate observed in the Büsnau sewage treatment plant is 96%. 21% of the influent zeolite A are retained in the sand trap, 42% in the primary clarifier, and 33% in the biological treatment.

Applicant's summary and conclusion