Sustainable Cotton Gin Byproducts Treatment and Utilization

Authors: Alege, Femi

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 2/23/2024
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Cotton Gin Byproducts (CGB) (aka ‘gin trash’) are generated in large quantities with broad variability in properties and composition. These attributes complicate the treatment and utilization, and therefore necessitate continued improvements in methods and technologies adopted. Aerobic composting of CGB in static piles is one of the most common practices in the industry. However, there is relatively limited information on the physical and biochemical transformations that occur during the CGB composting process. This presentation covers the changes in nutrient composition and feed properties of CGB at multiple sampling points on a static compost pile over nine months. The properties investigated include the main macronutrients (total nitrogen, phosphorus, potassium), as well as measures of feed digestibility and nutritional value (crude protein, ash, fibers, total digestible nutrients, and estimated energies). In addition to the property changes during the composting, the presentation will cover options for enhancing the sustainable utilization of CGB, such as co-treatment with other agricultural residues and byproducts from animal production. From a circularity perspective, this work suggests potential to predict CGB composting for improved utilization in crop production and animal feeding.