Pollution board finds way to make use of Kota stone slurry

Updated on Mar 20, 2017 08:59 PM IST

RSPCB has managed a technique to manufacture bricks, tiles and building material using the stone slurry

Prototypes of tiles developed from the Kota stone slurry.(HT Photo)
Prototypes of tiles developed from the Kota stone slurry.(HT Photo)
Hindustan Times | ByAabshar H Quazi, Kota

The Rajasthan State Pollution Control Board (RSPCB) has found a way to make use of the stone slurry generated by stone processing units in the Kota region. The board has managed a technique to manufacture bricks, tiles and building material using the stone slurry.

Now, the board is trying to persuade the owners of stone processing units to avail the technique, which will not just make good use of the waste product, but also help the environment.

There are more than 2,500 stone processing units in the Kota region, which is famous for the Kota Stone. These units, situated in Kota and Jhalawar districts, generate a huge amount of stone slurry and its disposal is a big problem for the industries. According to the RSPCB data, 200-250 tonne of slurry is produced every day at around 250 stone processing units in Kota city alone.

Now, the technique developed for the board by the Central Building Research Institute (CBRI), Rorkee (Uttarakhand), will help manufacture bricks, tiles and building material using the stone slurry.

Giving detailed information about the technique, Amit Sharma, regional officer, RSPCB, Kota, said, “RSPCB had given 15 lakh to the CBRI around three years ago for suggesting gainful utilisation of the Kota Stone slurry, which has recently divulged a new technique for manufacturing bricks, floor tiles, wall tiles and other building material through mixing pozzolanic material with slurry.”

He said CBRI is seeking additional 20 lakh to share its technique with the board, which is in talks with the owners of Kota Stone processing industries to share the cost. “RSPCB is also ready to provide a significant subsidy to the processing units on setting up of projects for gainful utilisation of slurry,” he clarified, and expressed hope the projects would be established “soon”.

Hadauti Kota Stone Industry Association president Chuttan Lal Sharma said, “The unit owners are ready to set up projects for gainful utilisation of slurry, but government should first provide dumping yard and technology to the Kota Stone processing units.”

Talking about the slurry problem, Brijesh Vijayvargiya of Rashtriya Jal Biradari, an NGO, said, “After complaints of slurry getting mixed in the drain water and water bodies, the matter had reached to the National Green Tribunal, which ordered for developing dumping yard in Kota and make its gainful utilisation. The order needs to be implemented.”

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