Towards a cleaner production in developing countries: a case study in a Chilean tannery.
Waste Manag Res
; 22(3): 131-41, 2004 Jun.
Article
en En
| MEDLINE
| ID: mdl-15253496
A Chilean leather tanning industry (tannery) was studied in terms of input/output (I/O) analysis of beamhouse, tanyard and retanning processes. The physical-chemical characterization of 19 streams were investigated. Streams from the beamhouse process and some streams from the retanning process were found to have high organic contents ranging from 2.5 to 18.1 g COD L(-1). The pH ranged between 3.45 and 12.28. Sulphur was found in most of the streams whereas chromium was detected in two wastewaters from the tanyard and in seven streams from the retanning process. Pollution prevention opportunities were evaluated and an appropriate treatment strategy was proposed. The main emphasis was on determining waste reduction measures that can be easily implemented and are not particularly expensive. Measures for reduction at source were proposed to reduce water and chemicals consumption and wastewater pollution. A so-called S(index) strategy was used to evaluate proposals on segregation and specific treatment of the main chromium- and sulphur-containing wastewaters. It was suggested that some streams may be re-used, but it is necessary to apply anaerobic or aerobic treatment first, depending on their organic load. Solid wastes were also evaluated and a proposal for their reduction and disposal was made.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Industria Textil
/
Contaminantes Químicos del Agua
/
Purificación del Agua
/
Países en Desarrollo
Aspecto:
Determinantes_sociais_saude
Límite:
Animals
País/Región como asunto:
America do sul
/
Chile
Idioma:
En
Revista:
Waste Manag Res
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2004
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
Reino Unido