Titre : |
Toxicity of tannery effluent - The next concern ? |
Type de document : |
texte imprimé |
Auteurs : |
Carl V. Huber, Auteur ; M. De Satyendra, Auteur |
Année de publication : |
1990 |
Article en page(s) : |
p. 276-286 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
Résumé : |
The following conclusions can be derived from the evaluation of tannery effluents :
1. The tannery effluents studied are acutely toxic.
2. Ammonia, in concentrations normally discharged by tanneries, should be considered the primary constituent of toxicity.
3. Other toxicity is present even after ammonia is removed. Such toxicity is in the soluble fraction and is unaffected by polar screening.
4. A strong suspect of toxicity is the non-ionic branch-chained molecular structures which may exist in surfactants and wetting agents.
5. For more-poorly treated tannery wastes, undisassociated hydrogen sulfide, phenols, chlorides, as well as other organics should be suspected.
6. The focus of permitting in the future will be on water quality-based criteria. Industries should ensure that they are prepared for the scrutiny and understand the nature of their discharge. |
En ligne : |
https://drive.google.com/file/d/1TMn_gyZNoq-EDt_QmK7MI6akOF7-JcUV/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8718 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXV (Année 1990) . - p. 276-286