TOCIC-Kolkata Mission Initiative
TECHNOLOGICAL INTERVENTIONS FOR A CLEAN GANGA ESTUARY
The Gangetic delta is one of the most delicate ecological niches on the planet. It is also an UNESCO Biosphere Reserve. West Bengal harbours more than 50% of the Gangetic delta and also, a significant stretch of the River Ganga's distributary system (River Hooghly).
Problems of the Ganga estuarine region:
- The region is immensely prone to waste accumulation
- Loss of natural habitat as a result of destructive anthropogenic activities/climate change etc.
- Economically under-privileged area. A region with low human development index
- A region of low industrial output
- Poverty, backwardness and inward dynamics scuttle development.
PARTIAL REPLACEMENT OF SAND BY FOUNDRY WASTE TO MAKE M30 GRADE CONCRETE
PRISM Innovator's Name: Mr. Siddhartha Mukherjee
Metal casting foundries use sand as a molding material in the process of casting of the molten metal. The sand which gets used in the preparation of molds is eventually disposed away after a number of cycles. Unless some suitable method is envisaged for the disposal of this waste sand from foundries, it will become an environmental hazard. A suitable way of utilizing this waste sand is by using it as a partial replacement of the fine aggregate fraction in the mixing of structural grade concrete. The present project analyses the crucial properties of concrete made by replacing the fine aggregate fraction of conventional structural grade concrete by waste sand from foundries by weight, in varying extents. The strength properties of each trial mix thus produced, such as the 28 days compressive strengths and flexural tensile strength are tested and compared with conventional cement concrete of same grade (M30). In this way, the optimum mix proportions of concrete from foundry waste sand are determined.
Banned Ivory-Its “replacement"
PRISM Innovator's Name: Ms. Jayeeta Pal
At first it is needed to find the exact layer on the coconut shell which would come close to ivory. Thus while creating these artifacts I have found out that there exist a sub layer on the coconut shell which resembled the ivory and the encarved design on that layer further proved that surely it looked like ivory. To create artifacts like Pen Stand, Paper Weight, Table Lamp, Jewellary Box and Kukri first the raw material i.e. the coconut had to be cleared of the husk. After that with the haxo small pieces were cut and then pasted as per requirement. Natural glue like resins is used to paste the pieces and found out that there was no difference in the outcome. After the completion of the model, sand paper and different types of files were used to give a finishing touch. After completion of the model, sand paper and different types of files were used to give a finishing touch. After that as per requirements pencils were used for drawing. Then by using various tools, different designs were encarved on the model.