Volume No. 5 Issue No.: 1 Page No.: 164-171 July-September 2010

 

BIOGAS MANURE (BGM) FROM MIXED KITCHEN WASTE: A TRAIL STUDY

 

Ajit Kumar, Amish Kumar , Rajeev Kumar1 and J.S. Sudarsan*2

1. Department of Environmental Engineering, SRM University, Kattankulathur-603 203, Tamil Nadu, (INDIA)
2. Department of Civil Engineering, Faculty of Engineering and Technology, SRM University, Kattankulathur-603 203, Tamil Nadu, (INDIA)

 

Received on : April 13, 2010

 

ABSTRACT

 

A prototype anaerobic model of 4.37 m3 was developed for the study of biogas production and biogas manure from the mixed kitchen waste generated from SRM University hostels. It was developed for a trail study for establishment of 90 m3 biogas plant in the campus. SRM hostels consists of 12 Block with 4 kitchens cooking food for more than 6000 students. It was estimated that an average food waste (cooked and uncooked) per person was 200 gm. The option available for management of this huge kitchen waste was open land disposal and as animal feed. The reactor was filled with 2/3rd of its capacity with mixed kitchen waste, cow dung and sewage in definite proportiona. The retention period was maintained for 40 days. The biogas is evolved during the period of digestion its was simple exhausted in atmosphere. The study was mainly based on biogas manure quality which was produced after the digestion of kitchen waste. After the 40 days semi-liquid biogas slurry was obtained. This semi-liquid slurry was used for the manure analysis. Total 6 composite samples of biogas slurry was analysed on oven dry basis. An average percentage of nutrient in these samples were found to be 2.02% nitrogen, 0.69% phosphorus and 1.11% potassium respectively. The nutrient value was compared with the other biogas manure which was estimated by Regional Centre for Biogas development IIT, Kharagpur, India State: W. Bengal. The biogas manure which produced by kitchen waste is good of manure.

 

Keywords : Prototype model, Kitchen waste, Anaerobic digestion, Biogas slurry, BGM

 

 

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