So in regions where such regulations are relaxed or easily bypassed with some well-placed bribes, tanneries are still throwing the chrome out with the bathwater. Download: Biomethanation of Fleshings and Sludge from Tannery Effluent Treatment Plants With increasing pressure from the pollution control authorities, tanners in many countries of South East Asia region are faced with the urgent task of utilization or safe disposal of solid wastes from tanneries, particularly fleshings.
Tanned leather, on the other hand, remains flexible in heat and will not putrefy when wetted. They also cause groundwater pollution, attract flies, rodents and stray dogs and thus represent a public nuisance.
And, as a study performed in Indian tanneries suggests, a mix of 70 percent new chrome and 30 percent recaptured chrome produces nearly identical results as using percent new chrome.
These two issues were highlighted by the industry and government representatives of countries participating in the Regional programme for South-East Asia. This report covers the demonstrations carried out during the period January to February of desalting of salted raw stock and use of the recovered salt in pickling.
This fixes the tanning material to the leather at a molecular level and helps reduce the amount of shrinkage experienced when the leather is submerged in warm water. Like synthetic-tanned leathers, Aldehyde leather is white in color. In fact, a study by the International Agency for Research on Cancer IARC found no link between the tanning process and nasal cancer in tannery workers.
The report describes requirements for a safe landfill disposal and practical recommendations for replication. Kangaroo is often employed for bullwhips and motorcycle leathers, given its lightweight and abrasion-resistant nature.