Inclined on request For technical specification B4-DV-8-D Bevel-helical gear units B4

Flender/Flender Gear Units/Bevel-helical gear units B4

ucts. 4 BIOGAS PRODUCTION FROM FRUIT AND VEGETABLE PROCESSING WASTE promising method for economic utilization of fruit and vegetable processing wastes that otherwise are unsuitable or uneconomical for production of by-products is biometha-nation. This method has certain advantages because it provides fuel in the form of methane,digested slurry can be used as manure, and enriched efuent can be used for irrigationpurposes. Some of the processing wastes that contain antinutritional or toxic factors canalso be utilized for biogas production after suitable modications. Kranzier and Davis ( have studied the potential for recovery of energy from apple pomace by means of biogas conversion technology. It has been reported that citrus peel can be used only up to 4% level for biogas generation because the citrus oil becomesinhibiting for anaerobic digestion (. This problem has been greatly overcome by fun-gal pretreatment of the waste (. Solid-state fermentation of wastes using selectedstrains of Sporotrichum, Aspergillus, Fusarium, and Penicillium spp. reduced the level of By-Products of Fruits and Vegetables 8 antimicrobial substances, allowed the use of loading rate of 8%1% (dry weight), and improved the overall productivity of biogas and methane. Wastes from fruit and vegetable processing lack certain essential nutrients required for efcient biogas production. Carbon, nitrogen, and phosphorus (::) ratio is impor-tant for anaerobic digestion. Mango peel waste supplemented with rice bran could generate biogas of 0.6 3/kg volatile solid (VS) added (. Trace elements including cobalt, nickel, and iron also showed benecial effect on biogas yield and its methane content(. Lenschner and associates ( reported the engineering and economic analysis of methane generation from potato, fruits, tomato, and dairy wastes. They were of the opinionthat the seasonality of the waste was the major drawback to commercialization of the process. Krishnanand ( has shown that mango