DESIGN AND DEVELOPMENT OF LIQUID SLURRY APPLICATOR FOR APPLICATION OF LIQUID DIGESTED SLURRY OF BIOGAS PLANT
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Date
2005
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MPUAT, Udaipur
Abstract
Presently large volume of waste is generated annually which demands a proper method of disposal. This can be solved using biogas technology. Animal wastes, agricultural or forest wastes can be digested in anaerobic condition with the advantage that the gas produced can be used as a fuel gas and residue can be used to recycle the organic matter in the soil to improve the soil fertility. However the digested slurry management especially for the big plants creates a serious problem for the drying as well as disposal.
This research work was undertaken with the objective to design and develop a liquid slurry applicator for application of liquid digested slurry of biogas plant in the field. The liquid slurry applicator unit was fabricated in the workshop of Renewable Energy Sources Department, C.T.A.E., MPUAT Udaipur. The cost of material for fabrication of liquid slurry applicator was Rs. 46000/-.
The liquid slurry applicator consisted of slurry storage tank, slurry pump, shovel assembly, main frame and control valves. The liquid slurry applicator was pulled and operated by PTO in the field with help of a tractor. Maximum 7-8% solid content in the liquid slurry was suitable for the easy flow of the liquid slurry in the field and working of the applicator. Total quantity of liquid slurry applied per hectare came to 15000 liters. To study the nutrient contents of the field soil two liquid slurry application techniques were studied i.e. shallow injection and surface broadcast method. The highest percentage of N, P, and K content was observed in shallow injection method which was 1.82, 1.07 and 1.35 percent over surface broadcast method.
The performance evaluation of liquid slurry applicator was evaluated for crop production.
The percentage of N, P, and K content was observed in the soil, after the application of wet biogas slurry were 1.78, 1.05 and 1.35 respectively whereas in the case of FYM application it was found as0.85, 0.70 and 0.80 respectively. The application of liquid slurry improved the growth parameters like number of branches/plant, number of nodules/plant, plant height and yield attributes like pods/plant, grains/pod. Grain, straw and biological yields were found higher by 32, 7 and 15 percent respectively with application of liquid slurry over FYM.
Description
DESIGN AND DEVELOPMENT OF LIQUID SLURRY APPLICATOR FOR APPLICATION OF LIQUID DIGESTED SLURRY OF BIOGAS PLANT
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Citation
Nehete and Kurchania, 2005