Undertaken By: Society for Development Alternatives, Recent Publication: 2020
The Bihar brick industry is currently dominated by energy intensive, resource depleting and highly polluting technologies, such as Fixed Chimney Bull’s Trench Kilns (FCBTKs). The production of fired clay bricks consumes around 4.8 million tonnes of coal per year, leading to the emission of 16 million tonnes of carbon dioxide (CO2) and consumption of 53 million tonnes of topsoil.
The Bihar State Pollution Control Board (BSPCB) mandated all traditional brick kilns to adopt cleaner brick production technologies, such as fly ash bricks, zig-zag or vertical shaft brick kiln (VSBK) methods of brick firing. The zig-zag, despite being an upgraded form of the existing FCBTK technology, does not resolve the issue of soil depletion. Thus, mere conversion to zig-zag or vertical shaft technologies might not be sufficient, and calls for encouraging the production and utilisation of fly ash bricks.
This edition of “Fly Ash Brick Industry in Bihar” is in continuation to the previous editions of 2014 and 2016. The third edition assesses the current state of fly ash bricks in Bihar. It delves deeper into the barriers faced by the industry, on the demand and supply side in particular.