Co-composting of chicken manure with organic wastes: characterization of gases emissions and compost quality

Abstract

Co-composting of organic wastes is globally recognized to be effective method to dispose two or more wastes at once and minimize drawbacks of composting such as gases emissions and nutrient reduction. In this study, pilotscale experiments were conducted to characterize the co-composting process of chicken manure with cow manure (CC), swine manure (CS), plant residues plus mushroom media (CRM), on emissions of greenhouse gas, and ammonia, compost quality, maturity and their correlations. The results showed that cumulative flux of carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O) and ammonia (NH 3) widely ranged like 38,211-50,830, 172-417, 98-142 and 118-927 g kg dm −1 day −1 respectively. It indicated the importance of selection for co-composting material. The NH 3 emission was significantly increased by 4.3-7.9 times in CS and CRM, compared to OC and CC. Both of CS and CRM also showed longer thermophilic phase and later maturation were also observed in both treatments. Temperature was positively correlated with gases (P < 0.001) except CH 4 , and nitrogen content, C/N ratio and nitrate nitrogen significantly affected emission of carbon and nitrogen (P < 0.001). In conclusion, for chicken manure composting, sole chicken manure or combination with cow manure could be suitable composting method to improve compost quality and minimize gases losses.

Reducing odor emissions from feces aerobic composting: additives

“…T. thioparus can promote the transformation from organic sulphur and elemental sulphur to sulphate, and effectively increased the proportion of available sulphur in the compost. The detailed reaction process is shown in chemical eqn(4).…”

Implementation of a Coupon System in Municipalities and Its Significance in Area of Waste Sorting as Green Economy

“…Pilot-scale experiments were conducted to characterize the co-composting process of chicken manure with cow manure (CC), swine manure (CS), plant residues plus mushroom media (CRM), on emissions of greenhouse gas, and ammonia, compost quality, maturity and their correlations. The results showed importance of selection for co-composting material [14]. Waste sorting is very important from an environmental, economic and social point of view.…”

Composting Process and Gas Emissions during Food Waste Composting under the Effect of Different Additives

“…The ammonia concentration in the acid was analyzed using Auto Analyzer 3 (Bran Luebbe, Hamburg, Germany). Details related to the sampling and measurement of gases are clearly explained in a previous study [16].…”

“…Fresh samples were extracted using 2 M potassium chloride (1:10, w/v) to determine the concentration of ammonium (NH 4 + ) and nitrate (NO 3 − ) using a segmented flow analyzer (Bran Luebbe, Hamburg, Germany). The germination index (GI) was used to assess the phytotoxicity of the compost [16,17].…”

“…Five 62 L plastic boxes covered with 5 cm thick polystyrene were used to prevent heat loss. The treatments were not replicated because the composting scale ensured experimental reproducibility, as evidenced in other studies [14][15][16]. The temperature of all compost piles was continuously monitored using a data logger (EM50 Data logger, Washington, DC, USA).…”