The conventional leather tanning technology is highly polluting as it produces large amounts of organic and chemical pollutants. Wastes generated by the leather processing industries pose a major challenge to the environment. According to conservative estimates, about 600,000 tons per year of solid waste are generated worldwide by leather industry and approximately 40–50% of the hides are lost to shavings and trimmings.

The energy generated by anaerobic digestion or gasification of tannery wastes can be put to beneficial use, in both drying the wastes and as an energy source for the tannery’s own requirements, CHP or electricity export from the site. A large amount of the energy recovered is surplus to the energy conversion process requirements and can be reused by the tannery directly. Infact, implementation of waste-to-energy systems have the potential to make the industry self-sufficient in terms of thermal energy requirements. Tanneries are major energy users, and requires up to 30 kW of energy to produce a single finished hide. Thus, waste-to-energy plant in a tannery promotes the production of electricity from decentralized renewable energy sources, apart from resolving serious environmental issues posed by leather industry wastes.

To read the full article, please visit http://www.altenergymag.com/emagazine.php?art_id=1499

About these ads

About Salman Zafar

Salman Zafar is a renowned expert in waste management, renewable energy and sustainable development. He is the Founder of EcoMENA, a Doha-based organization meant to promote sustainable development and create environmental awareness in MENA countries. Salman possesses Masters degree in Chemical Engineering from Aligarh Muslim University (Aligarh, India) and has successfully accomplished a wide range of projects, mainly in the areas of biogas technology, biomass energy, waste-to-energy and solid waste management. Salman is proactively engaged in creating mass awareness on clean energy technologies and waste management systems through his websites, blogs and articles. He has participated in various international conferences as session chair, keynote speaker and panelist. Salman is a prolific writer and has authored numerous articles in reputed journals, magazines and newsletters on renewable energy and environmental issues. He is based in India and can be reached at salman@bioenergyconsult.com or salman@ecomena.org

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s