PMID: 15253496Jul 16, 2004Paper

Towards a cleaner production in developing countries: a case study in a Chilean tannery

Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA
B RivelaG Vidal

Abstract

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 ev...Continue Reading

References

Apr 12, 2002·Environmental Science & Technology·Jonnalagadda Raghava RaoBalachandran Unni Nair
Jan 23, 2003·Environmental Toxicology·K CoomanG Vidal

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Citations

Apr 19, 2007·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Alberto BezamaKarl E Lorber

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