Determination of the Effect of Aeration Rate on Composting of Vegetable–Fruit Wastes

Abstract

In this study, it was aimed to determine the effect of various aeration rates on composting to supply the optimum aeration rate for a successful and economic composting. For this aim, vegetable-fruit wastes (VFW) were composted at various aeration rates (0.37, 0.49, 0.62, 0.74, 0.86, and 0.99 L/min kg VS) and moisture, temperature, pH, electrical conductivity, C/N, and cellulose were investigated. Moistures of the reactor that had the highest aeration were generally lower than those of the others. Reactor that had the lowest aeration reached thermophilic phase earlier than the others and stayed more days. This situation was opposite for the reactor that had the highest aeration. pH variations with aeration rates were not significant. Although electrical conductivity did not differ significantly with aeration rates, at the beginning of the thermophilic phase it generally increased with the increase in aeration. The highest C/N reduction was observed in the reactor that had an aeration of 0.62 L/min kg VS. The final cellulose contents were close to each other. It could be said that aeration rates used were efficient on composting of VFW. Taking the C/N into account which is the parameter of the indicator of the stabilization in composting, it could be said that the optimum aeration rate for forced aerobic composting of VFW was 0.62 L/min kg VS.

Agroecological aspect of the valorization of enriched compost household fermentable refuse production: cases of the town of Tiaret (Al

“…The ratio C / N obtained is 6.27. This value is in line with the work of certain authors, notably Sérémé and Mey (2008) and Arslan et al (2011), which report values between 05-07 and 04-12. In general, a wall compost must have a C / N ratio of less than 15.…”

An Overview of Organic Waste in Composting

“…In another study, Arslan [8] used in-vessel composter as a method to compost kitchen wastes. The composting process was conducted for 22 days.…”

“…The performance of the composting process also will depend on the characteristics of the waste because a Corresponding author : aeslina@uthm.edu.my composting is only suitable for waste that is biodegradable [7]. There are many advantages that can arise from composting, including the reduction of volume, weight and water content of the waste as well as producing inactive pathogenic organisms [8,9]. Therefore, the compost can contribute to the improvement of soil contents and nutrients required for harvesting plants, and will significantly reduce the use of synthetic fertilizers [10].…”

Performance of locally available bulking agents in Newfoundland and Labrador during bench-scale municipal solid waste composting

“…High EC values of compost may have phytoxicity effects on the plant and negatively influence the plant growth and seed germination (Banegas et al 2007;Kalamdhad et al 2009;Arslan et al 2011). Experimental results showed that EC values of FS compost increased earlier than FP compost (Figure 2).…”

“…Composting is a biological process in which easily degradable organic matter is stabilized and converted into a humus-rich product by the action of microorganisms (Eiland et al 2001). The advantages of composting are diverting organic matter from landfills, reducing waste volume, decreasing the potential odour, decreasing the moisture content of MSW, and amending soil/improving soil quality (Haug 1993;Cronje et al 2003;Arslan et al 2011;Hasan et al 2012).…”