Straw for green power
This is with reference to the editorial "Straw in the wind" (February 16-28, 2015). I agree that surplus straw, which is a valuable resource, should be put to far better use in villages for rural development. Anaerobic digestion of crop residues produces biogas and nutrient-rich manure. The biogas can be used for power generation in areas that are not connected to the grid. This will boost economic activities in the area. The manure produced can be used in the farms.
The technology has been found satisfactory at prototype level with rice straw and a few other crop residues. What is required to be done is to evaluate the technology by setting up large-sized demonstration plants in Punjab, Haryana and western Uttar Pradesh, work out its techno-economic feasibility, including social and environmental effects, and then promote it in the region. M SHYAM, DIRECTOR, SARDAR PATEL RENEWABLE ENERGY RESEARCH INSTITUTE,
VALLABH VIDYANAGAR, GUJARAT