Research

LRC conducts on all aspects of leather, footwear, Leather products production to advanced property enhancement for added value of these products. Our current research has a strong focus on enhancing the intrinsic properties of this unique material to obtain maximum strength and performance. LRC has always maintained a strong practical background to its research, which is supported by dedicated facilities for trial leather, footwear and Leather products production.

A number of Donor funded research projects are currently underway at LRC. These projects are based on a mixture of Management, Clean environment, Design, OHS and technology which seek to improve the value of leather, footwear, Leather products.

Reuse of Solid Waste Generated from the Bangladesh Leather Sector: Opportunities, Challenges, and Future Directions

 

Abstract

The leather industry is one of Bangladesh's major export-oriented sectors, contributing significantly to employment and foreign exchange earnings. However, leather processing generates a large quantity of solid waste from raw hides to finished leather production. Proper utilization of these wastes can create value-added products, reduce environmental pollution, and support the development of a circular economy. This article discusses the classification of leather solid wastes, potential utilization methods, products that can be manufactured, challenges in Bangladesh, and international experiences that may support sustainable waste management.

 

1. Introduction

Bangladesh processes millions of cattle hides and skins every year. During the conversion of raw hides into finished leather, approximately 40–50% of the raw material becomes solid waste. Most of these wastes are either dumped in landfills or improperly disposed of, causing environmental and public health concerns.

Developing technologies for recycling and reuse of leather waste offers opportunities for:

•           Environmental protection

•           Resource efficiency

•           Additional income generation

•           New industrial sectors

•           Green employment opportunities

 

2. Leather Solid Wastes

Solid wastes from leather production generate from different stage of production. Below table shown their characteristics, possible utilizations and Bi-products that we can be used in our daily life.

Solid waste

Generate

Characteristics

Utilization

products

Raw trimmings

hide and skin trimming before soaking and liming.

 

Untanned, High collagen content, Biodegradable

 

Gelatine production, Collagen extraction, Protein hydrolysate, Animal feed supplements (where regulations permit), Organic fertilizers, Biogas production

 

Gelatine, Collagen peptides, Agricultural fertilizers, Bio-fertilizers

 

Fleshing Waste

 

Produced during the fleshing operation after liming.

 

Untanned collagen fibers, sulfide High protein content

 

Biodiesel production, Biogas generation, Animal fat recovery, Protein meal

 

Biodiesel, Soap, Industrial grease, Organic fertilizers

 

Lime Sludge

 

liming and un-hairing operations.

Lime, hair, sulfides, and organic matter

Soil conditioner, Composting material, Cement additives after treatment

 

Compost, Construction materials, Agricultural soil amendments

 

Chrome Shavings (Shaving Dust)

 

shaving operations after chrome tanning

Contains chromium, Fine fibrous particles

 

Chromium recovery, Leather board manufacturing, Composite materials, Energy recovery technologies

 

Reconstituted leather board, Shoe insoles, Industrial sheets, Decorative panels

 

 

 

 

3. Major Problems in Bangladesh

Despite the significant potential, Bangladesh faces several challenges.

3.1 Lack of Segregation

Different wastes are often mixed together, reducing recycling opportunities.

3.2 Limited Technology

Advanced technologies for collagen extraction, chromium recovery, and composite manufacturing are limited.

3.3 Insufficient Investment

Few investors are interested in waste recycling industries.

3.4 Environmental Concerns

Improper disposal causes:

•           Water pollution

•           Soil contamination

•           Odor problems

•           Health hazards

3.5 Lack of Skilled Human Resources

There is limited expertise in leather waste valorization technologies.

3.6 Weak Regulatory Enforcement

Environmental regulations exist but implementation remains inadequate.

 

4. International Experiences

Several countries have successfully developed leather waste recycling industries.

Italy

•           Leather fiberboard manufacturing

•           Luxury recycled leather products

•           Circular economy practices

India

•           Collagen extraction industries

•           Chromium recovery plants

•           Gelatin production

China

•           Large-scale leather waste recycling

•           Composite material manufacturing

Turkey

•           Leather board and insulation materials

•           Waste-to-energy technologies

Brazil

•           Organic fertilizer production

•           Biogas generation from fleshing wastes

 

5. How Bangladesh Can Obtain International Support

5.1 Technology Transfer

Collaboration with advanced leather-producing countries can provide:

•           Recycling technologies

•           Equipment

•           Technical expertise

5.2 Joint Research Programs

Universities and research institutes can establish collaborative projects.

5.3 Training and Capacity Building

Engineers and technicians can receive international training.

5.4 International Funding

Support can be sought from:

•           Development agencies

•           Climate funds

•           Circular economy initiatives

5.5 Industry Partnerships

Partnerships with foreign recycling companies can facilitate investment and technology adoption.

 

6. Recommendations

1.         Establish waste segregation systems in tanneries.

2.         Develop centralized leather waste processing facilities.

3.         Promote research and innovation.

4.         Encourage private investment.

5.         Strengthen environmental regulations.

6.         Develop international collaborations.

7.         Provide training programs for industry professionals.

8.         Introduce incentives for recycling industries.

 

7. Conclusion

Leather solid waste should no longer be considered a disposal problem but rather a valuable secondary resource. Bangladesh has substantial opportunities to convert leather waste into high-value products such as collagen, gelatine, fertilizers, leather boards and biodiesel. Through technology transfer, international cooperation, investment, and policy support, the country can establish a sustainable circular economy in the leather sector and enhance both environmental protection and economic growth.

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