Leather has been used from the beginning of time. The main raw material is animal hide or skin, which includes (to a lesser extent) reptiles, fish and birds. The tannery process entails transforming raw skin, which is a highly putrescible substance, into leather, which is a stable material that can be used to make a variety of items. A series of sophisticated chemical reactions and mechanical processes are involved in the entire process. Various pre- and post-treatment stages result in a finished product with specified attributes like stability, appearance, water resistance, temperature resistance, elasticity and perspiration and air permeability, among others.
Leather is an intermediate industrial commodity having several applications in the consumer products industry's downstream sectors. Leather is a major material input for the latter and it is cut and constructed into shoes, apparel, leather products, furniture and a variety of other everyday objects. Different varieties of leather are required for different applications.
Other by-products of hide and skin tanning include dog biscuits and other animal food products, fine chemicals such as photography and cosmetics, soil conditioning and fertilisers. Leather production has long been associated with odours and water contamination. People involved in this business rarely enjoyed great social prestige in various societies, as it seemed to be an unavoidable result of the activity at the time. The majority of the basic phases of leather production have remained same, however the tanning sector has experienced significant modifications. Several significant advancements in environmental protection have been made.
The chemicals utilised, the raw materials used, and the effluents, wastes, and off-gases released during the tanning process all have a significant detrimental effect on air, surface and ground water, soil, and other natural resources. As a result, pollution control, waste output and disposal, chemical safety, accidents, and raw material/water/energy consumption must all be addressed.
Leather Market in India
The Leather and Footwear Sector is one of the 12 Focus Sectors where India may be a Global Supplier, according to the Indian government. With the implementation of several industrial development programmes as well as export promotion activities, the Indian leather industry aims to augment its past performance and inherent strengths of skilled manpower, innovative technology, increased industry compliance with international environmental standards, and dedicated support from allied industries.
Process of manufacturing of leather
Source Operations in Tannery |
Emission to air |
Degreasing Finishing |
Organic Solvents |
Spray-finish Machines Dryers |
VOCs |
Beam house and Effluent treatment |
Sulfides |
Beam House Deliming Dehairing Drying after dyepenetration |
Ammonia |
Storage handling of powdery chemicals Dry shaving Buffing Dust removal machines Milling drums, Stalking |
Dust |
Odour Emission to air |
|
Beam house operations |
NH3 |
Beam house operations ETP collection tanks ETP Primary Treatment Units ETP Sludge Dewatering System ETP Anaerobic Lagoons |
H2S |
Finishing Operations |
VOCs |
ETP Anaerobic Lagoons |
CH4 |
Solid waste- Salt from raw skin / hide dusting; raw skin / hide trimmings; hair from the liming / dehairing process, which may contain lime and sulphides; and fleshing from raw skins / hides are all examples of solid waste. Wet-blue shavings, which contain Cr2O3; wet-blue trimming, which is formed during finishing procedures and contains CrO, syntans, and dye; and buffing dust, which also contains CrO, syntans, and dye, are examples of other solid waste from the tannery sector. Due to the presence of organic matter and sulphides, the reducing qualities of tannery sludge stabilise Cr(III) with regard to Cr(VI).
Hazardous waste Material- A range of Hazardous chemicals are used in the tanning and leather finishing operations. As outlined in the General EHS Guidelines, guidance on the management of hazardous materials, including handling, storage, and transportation, must be followed.
Limited Liability Partnership- Limited Liability Partnership (LLP) is a corporate business structure that allows people with managerial and entrepreneurial skills to join and operate in a functional, innovative, and systematic manner, while providing limited liability benefits and allowing partners to organise their internal structure as a partnership..
Small scale industries and ancillary units (i.e., businesses with a plant and machinery investment of less than Rs. 10 million) shall register with the Director of Industries of the concerned state government.
- Credit prescription (priority sector lending), interest rate differentials, and so on.
- Excise Exemption Scheme - Direct Tax Laws Exemption.
- Statutory support, such as the Interest on Delayed Payments Act and reservation.
Environment Impact Assessment (EIA) Certification/ Environment Clearnce (EC)
Environmental Impact Assessment (EIA) is a planning tool that incorporates environmental concerns into the development process from the start and suggests necessary mitigation measures. Environment Impact Assessment (EIA) is a term that refers to the assessment of environmental impacts that are likely to occur as a result of a project. As per the notification of Ministry of Environment, Forest, Climate Change, Occupier need to take permission from MOEF for manufacturing of leather. Stage (1) Screening; Stage (2) Scoping; Stage (3) Public Consultation; and Stage (4) Appraisal are the four stages of the environmental clearance process.
State Pollution Board certification/NOC/Authorization-
Before establishing a facility, every business firm must obtain prior authorization from the Concerned State Pollution Control Board. Every state has a pollution control department tasked with monitoring any pollution that occurs within its borders. The Central Pollution Control Board, which is overseen by the Ministry of Environment, Forest and Climate Change, divides industries into four categories. Leather manufacturing is classified as RED in most states. A business entity must obtain the following permissions.
What are the documents are required to obtain State Pollution Board Consent Certificate
Consent to Establish/Consent to Operate
Every Business entity needs to take permission from Central Ground Water Authority from extracting of Ground Water. The Environment (Protection) Act, 1986 was adopted by the Indian Parliament to regulate, monitor, and manage pollution, as well as to protect the environment in the Union Territory of India. The Central Ground Water Authority was established under Section 3 (3) of the Environment (Protection) Act, 1986, with the goal of developing and preserving all of India's water resources for future generations.
For more information on Central Ground water click on metacorp
Trademark - A identifiable insignia, phrase, word, or symbol that designates a certain product and legally distinguishes it from all other items of its sort is referred to as a trademark. A trademark is a symbol that uniquely identifies a product as belonging to a certain firm and acknowledges that business's ownership of the brand. Trademarks are a sort of intellectual property that can either be registered or not.
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