Leather tanning and finishing waste management research and development program
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Leather tanning and finishing waste management research and development program

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Published by Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, Food and Wood Products Branch, for sale by the National Technical Information Service in Cincinnati, Ohio, Springfield, Va .
Written in English

Subjects:

  • Salvage (Waste, etc.),
  • Leather industry and trade -- Research -- United States

Book details:

Edition Notes

Statementby James F. Scaief
SeriesEnvironmental protection technology series ; EPA-600/2-76-187, Environmental protection technology series ; EPA-600/2-76-230
ContributionsUnited States. Environmental Protection Agency. Office of Research and Development
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL13601265M

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  His areas of expertise includes waste management, renewable energy, waste-to-energy, environment protection, resource conservation and sustainable development. Salman is a prolific environmental writer, and has authored more than articles in . • Tanning Operation • Wet-finishing Operation • Finishing Operation [2]. From all the stages of leather making, wastes originate such as fine leather particles, residues from various chemical discharges and reagents from different waste liquors Waste Management In Leather Industry - Environmental And Health Effects And Suggestions To. Waste characterization and impacts Part IV Bearnhouse Processing Introduction IV:3 Materials audit IV:4 Cleaner production IV: 13 Part V Tanning Process A tanning case study V:3 Answers to the work exercises V: 1 7 Part VI Leather Finishing Introduction to leather finishing . Environmental, health, and safety guidelines for tanning and leather finishing (Chinese) Abstract. The Environmental, Health, and Safety (EHS) Guidelines are technical reference documents with general and industry specific examples of Good International Industry Practice (GIIP).

Tanning strength: Ratio of tannins to soluble non-tannins and indicate the ability of the tanning liquor to produce good leathers. Tanning waste materials: Parts of plants e.g. barks, wood, fruits and leaves that are disposed to the environments after extraction of tannins. Total solids: The amount of solid materials contained in any tanning. (e.g. beamhouse, tanning), processes and operations (e.g. drying, liquid and solid waste management)and work environment, and management of human resources (safety at work, training) with internationally recognized best performers. • Identify the scope for improvement and set ambitious and yet achievable targets with clearly. Finishing includes mechanical processes to shape and smooth the leather and chemical treatments to colour, lubricate, soften and apply a surface finish to the leather (see figure 2). All of these processes may take place in one facility, although it is common for leather finishing to be conducted at locations different from tanning in order to. The leather tanning industry significantly contributes to economy of a country. The major leather production centers in the world are found in Mexico, Brazil, Japan, South Korea, China, India and Pakistan. Leather tanneries generate three type of waste including wastewater, solid waste .

Many wastes from leather tanning and finishing operations containing trivalent-chromium wastes are excluded from the definition of hazardous waste. These excluded wastes are listed in 40 CFR (b)(6). Tanks used for neutralizing waste that is hazardous solely because of its corrosive characteristic are excluded from the permitting requirements. The tanning of leather either by EI tanning or chrome tanning has common units of operation in conversion of raw material into an intermediate form from where specific products can be developed. Leather process may be classified into: (1) Raw to finish, (2) Raw to E.I., (3) E.I. to finish, (4) Raw to wet blue, (5) Wet blue to finish and (6) Crust. Tanning is the process of treating skins and hides of animals to produce leather.A tannery is the place where the skins are processed.. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition, and also possibly coloring it.. Before tanning, the skins are dehaired, degreased, desalted and. When bathed in hot water, vegetable-tanned leather will shrink and harden drastically, which is why it was once used as both an early form of plate armor as well as for book binding.