A process for the preparation of a mixture of carbonaceous products from proteinaceous materials
A process for the preparation of protein hydrolysate from proteinaceous chrome wastes
A microbial consortium and use thereof for liquefaction of solid organic matter.
The technology has been commercialized in India.
A process for the preparation of a mixture of carbonaceous products from proteinaceous materials 
Proteinaceous materials such as the byproducts obtained from the leather industry are pyrolyzed under controlled conditions of temperature and atmosphere and subsequently cooled to obtain a mixture of carbonaceous products. The products find enormous application in wide ranging industrial areas. An organic liquid, which is optionally obtained as byproduct, also finds significant industrial application.
The process provides an eco-friendly solution for effective utilization of the proteinaceous solid wastes generated by different industries. Thus it is envisaged to find enormous potential application in slaughter house, meat packing, leather and related industries in providing a green solution for utilizing the skin, hide and leather co-products. The carbonaceous product of the invention finds numerous industrial applications as ingredient for making rubber tires, reinforcement in composites, dry lubricant. They are also envisaged to have enormous application in the areas relating to nanotechnology, electronics, optics, material sciences and allied fields. Moreover, the organic liquid produced optionally as a byproduct of the process provides a rich source of amino acid-peptide mixture, which may find application in biotechnological industries.
The invention has been applied for patent protection (Indian Patent application no. 1625Del2007; Patent pending).
A process for the preparation of protein hydrolysate from proteinaceous chrome wastes
The invention relates to a microbial process for the preparation of hydrolysate from proteinaceous chrome wastes for industrial applications. The resulting hydrolysate finds potential application in leather processing industry as filler as well as retanning agent. The product may also be used as animal feed supplement. It may even find application as potential ecofriendly biofertilizer.
The unique feature of the invention lies in providing a microbial process capable of hydrolyzing proteinous matter even in the presence of chromium, which would otherwise have created major environmental problem, thereby not only providing a solution to a major problem of disposal of proteinaceous chrome wastes, but also suggesting an eco-friendly option of creating wealth out of waste. An additional feature of the invention is that the chrome cake, produced as a byproduct of the process, may be reused for chrome tanning as well as retanning in leather industry.
The invention has been applied for patent protection.(Indian Patent application no. 1575Del1999, Patent pending).
A Process for the preparation of a novel conducting fibrous composite for electromagnetic interference (EMI) shielding applications
An effective method for economical utilization of industrial wastes of fibrous matrix such as leather splits, trimmings, textile materials, paper boards etc., is provided whereby a conducting fibrous composite is produced for electromagnetic interference (EMI) shielding applications. The process essentially relates to polymerizing selected monomer, capable of forming into conjugated polymeric structure, onto the fibrous matrix itself under controlled conditions. This is in contrast to the conventional processes, where a conducting material is incorporated into a preformed polymeric material involving additional processes like compounding and moulding, to prepare flexible, light weight electro conducting fibrous composites for effective EMI shielding purpose. Thus the present process provides a simple and economical option to utilize the fibrous industrial wastes for preparing value added products.
The invention has been applied for patent protection.(Indian Patent application no. 1283Del1999, Patent pending).
A process for the preparation of a Parchment like material.
The product is essentially a thin, flexible as well as transparent sheet resembling a parchment and is prepared from materials like chrome shavings, trimmings from skin/hide, which are subjected to alkali hydrolysis under controlled conditions. The paste is treated with plasticiser/crosslinker and is finally cast into sheet, which is dried to get parchment like material. The sheet finds application in the products industry for fabrication of several decorative/fancy items like puppets, lamp shades, chandeliers, wall hangers, table tops etc. The material can also be used for effecting reinforcement in leather goods industry. The unique feature of the process is that the acidified chrome solution, generated as a byproduct, can be reused in leather processing, thereby suggesting a viable method for chrome recovery/reuse in leather processing industry. Moreover, the material is not prone to insect damage or putrefaction. Thus the process essentially suggests an eco-friendly as well as economical method of utilization of the chrome shavings, which would otherwise add to disposal problem, to make value added products, thereby creating wealth out of waste.
The process has been applied for Patent protection (Indian Patent application no. 300DEL2001; Patent pending).
A process for the preparation of leather like sheet and the sheet prepared thereby
The invention provides a process for the preparation of leather like sheet using fabric and solid wastes generated during leather manufacture. The process has enormous potential application in leather processing industry for utilizing some of the solid wastes for making value added product such as a sheet, which is envisaged to have application potential as excellent raw material in variety of consumer product industries. Thus the invention provides not only an economic option for effective utilization of the solid wastes generated in leather industry, but also a suitable cost effective material for making different consumer products.
The invention has been applied for Patent protection (Indian Patent application no. 752DEL2002;Patent pending)
A process for the separation of chromium from chrome tanned collagen material
Chrome tanned collagen material is subjected to alkali hydrolysis at a temperature of not less than 250 C and the separated alkali treated chrome collagen is treated with acid to recover chromium which is separated and is ready for reuse.
The invention has been applied for Patent protection (Indian Patent application no. 526DEL2004).
An improved process for the recovery of common salt from salt cured raw hides/skins for reduction of total dissolved solids in the effluents
A method is disclosed to treat salt cured hides/skins with saturated sodium chloride solution to ensure that the salt adhered to the skin settles down for subsequent separation as well as reuse. This ensures that the TDS of the leather processing effluent is significantly reduced. The process also provides a method to regenerate the contamination free saturated sodium chloride solution for subsequent use.
The invention has been applied for Patent protection (Indian Patent application no. 2421DEL2004).
A process for the preparation of dog chew is provided whereby chrome shavings are subjected to alkali hydrolysis followed by fiber size reduction and subsequent drying and shaping. The resulting product finds potential application in the pet food industry, which is flourishing. Thus the process has enormous application in cottage or small-scale industries. The unique feature of the process is that it enables introduction of a novel feed item from the tannery solid waste, thereby supporting value addition.
The invention has been applied for patent protection (Indian patent application no. 665Del2006; patent pending).
A process for the preparation of cereals incorporated feed composite from animal fleshings.
Thermally degraded animal fleshings is mixed with cereals, adding optionally food preservative as well as taste supplement thereto. The mixture is shaped and baked to get cereals incorporated feed composite, thereby providing a cost effective option for the utilization of fleshings, a solid waste generated by the leather processing industry, to get value added animal feed product.
The invention has been applied for Patent protection (Indian Patent application no. 328DEL2004;Patent pending). The technology has been transferred to industry.
A sustainable landfill
A sustainable landfill for disposal of solid and sludge comprises rigid, monolithic, impermeable, horizontal and vertical liner to prevent leakage of leachate from landfill.
Significant amount of solid wastes are generated by several processing industries such as chemicals, leather, textile. Commercial and household activities also generate huge solid wastes. The structure of the present invention may be used for the secured disposal of these solid wastes. Moreover, the structure may also be used as a secure landfill to dispose the sludge generated from industrial effluent treatment plants, sewage treatment plants. In other words, the structure finds enormous potential applications for eco-friendly secured disposal of sludge and solid wastes.
Sustainable landfill not only enhances the waste holding capacity by 3 times but also improvises the limitations associated in current practice in liner system. Horizontal liner is integrated with plurality of crests and troughs for collection of leachate in vertical direction. Arranging an array of troughs sloping towards sidewall not only enhances the leachate collection rate but also reduces the length of travel of leachate. Perforated segments inter-connected to the inner side of the vertical liner, enables to collect leachate in horizontal direction and reduce the leachate contact with waste.
The invention has been applied for patent protection in India (Indian Patent application no.125Del2006; Patent pending). The technology has also been transferred to multiple clients.
A process for simultaneous recovery of chromium and iron from chromite ore processing residue