| Abstrakt: |
Pressmud and molasses are important by-products of sugar industry where in molasses is the chief source for the production of alcohol in distilleries by fermentation method and by-product produced is known as spent wash. It is one of the most trouble some, complex and strongest organic industrial effluents, having extremely high COD and BOD values. Preventing the generation of sugar industry wastes, reducing the volume or toxicity of hazardous wastes by water recycling and reuse to reduce the pollution. The land application of distillery spent wash and pressmud often benefits water pollution control and utilization for agricultural production. Hence, controlled application of spent wash to the land as irrigation water helps in restoring and maintaining soil fertility, improving physical properties, increasing water retention capacity and enchancing soil microflora. Experiment was conducted in farmers' fields grown with various crops like, finger millet, maize, groundnut, etc., from 2006 to 2019 by University of Agricultural Sciences, Bangalore, where distillery spent wash was applied one time in rainfed areas. The soil properties were increased as compared to the initial soil samples. Later, sugar industry solid wastes, enriched solid wastes and compost prepared using pressmud were applied to fields, where soil properties and yield were found to be increased. The yield was also found to be more profitable than usage of farm yard manure as nutrient source. [ABSTRACT FROM AUTHOR] |
