Recovery of energy and chrome from chrome tannery wastes
An evaluation of the technical performance and cost effectiveness of a low temperature pyrolysis process which uses dry leather tanning wastes to provide energy and chrome tanning liquor for reuse in tanneries is presented. Presently, leather waste is disposed of in landfills, resulting not only in a considerable loss of potential energy (estimated to be 0.7 trillion Btus annually), but an even more significant loss of chromium (estimated to be 1.8 million pounds per year). The pyrolysis process is shown to be technically feasible, economically viable, and can alleviate a leather waste management problem that is becoming increasingly more difficult to handle because of more stringent environmental waste disposal requirements. Leather tanneries can save an estimated $7 to $8 million annually by employing this pyrolysis process to conserve energy and chrome in dry tanning wastes.
- Research Organization:
- Systems Consultants, Inc., Washington, DC (USA)
- DOE Contract Number:
- AC01-79CS40288
- OSTI ID:
- 6510491
- Report Number(s):
- DOE/CS/40288-T1; ON: DE81023699
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHROMIUM
RECOVERY
INDUSTRIAL WASTES
CHEMICAL COMPOSITION
ENERGY RECOVERY
PYROLYSIS
LEATHER
PROCESSING
ECONOMIC ANALYSIS
ECONOMICS
RESOURCE RECOVERY FACILITIES
DATA
DESIGN
ENERGY CONSERVATION
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL POLICY
EVALUATION
EXPERIMENTAL DATA
HEAT RECOVERY EQUIPMENT
LOW TEMPERATURE
MARKETING RESEARCH
PERFORMANCE
SOLID WASTES
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
ENERGY FACILITIES
EQUIPMENT
GOVERNMENT POLICIES
INDUSTRIAL PLANTS
INFORMATION
METALS
NUMERICAL DATA
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTE PROCESSING PLANTS
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
320304 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization