Composting of dairy cattle manure using a thermophilic–mesophilic sequence

Saludes, Ronaldo B.; Iwabuchi, Kazunori; Kayanuma, A.; Shiga, Tohru

doi:10.1016/j.biosystemseng.2007.07.003

Cited by 26 publications

(18 citation statements)

References 23 publications

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“…The highest value of the final organic matter conversion is 50.35% and, thus, the optimum ambient air temperature would be 28 C. Above this temperature, the highest value of the final organic matter conversion decreases. At optimum ambient air temperature, the calculated average temperature of substrate was 47 C, which is in good agreement with the literature data (Campbell and Darbyshire, 1990;Miyatake and Iwabuchi, 2005;Saludes et al, 2007). …”

Section: Model Applicationsupporting

confidence: 85%

Dynamic modeling the composting process of the mixture of poultry manure and wheat straw

Petrić

Mustafić

2015

Journal of Environmental Management

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Section: Model Applicationsupporting

confidence: 85%

Dynamic modeling the composting process of the mixture of poultry manure and wheat straw

Petrić

Mustafić

2015

Journal of Environmental Management

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“…Although T2 did not reach thermophilic stage, its compost matured in 60 days and this may due to maximum microbial diversity during the mesophilic stage 40-45°C [14] . The abundance of readily available and easily digestible substrate (e.g., sugars, starches, simple protein compounds) might have ensured that the microorganisms were active.…”

Section: Discussionmentioning

confidence: 94%

“…Relatively, low temperature in the compost facilitated the growth and respiration of micro-organisms such as aerobic mouldfungi and bacteria whereas high temperature was due to oxidation of cellulosic materials [15] . Lignin was degraded slowly in the mesophilic stage perhaps due to increase in fungal activity [14] . According to Smidt et al [16] , glucose can maintain a certain level of microbial activity which was perhaps from the molasses and SW itself.…”

Section: Discussionmentioning

confidence: 99%

Chemical Characteristics of Compost and Humic Acid from Sago Waste (Metroxylon sagu)

Petrus¹,

Ahmed²,

Muhamad³

et al. 2009

American J. of Applied Sciences

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Problem statement: Agriculture waste such as Sago Waste (SW) has a potential to cause pollution either on land or in water. In order to reduce this problem, a study was conducted to investigate the effect of three different treatments on the chemical characteristics of compost and humic acid from SW. Approach: The study had three treatments which were: T1: SW (80%) + chicken feed (5%) + chicken dung slurry (5%) + molasses (5%) + urea (5%), T2: SW (80%) + chicken feed (10%) + chicken dung slurry (5%) + molasses (5%) and T3: SW (80%) + chicken feed (10%) + chicken dung slurry (5%) + urea (5%). Composting was done for 60 days in a white polystyrene box with a size of 61.5×49×33.5 cm. The composts were analyzed for pH, total nitrogen, organic carbon, organic matter, ash, Cation Exchange Capacity (CEC), phosphorus and HA using standard procedures. Results: All treatments did not reach thermophilic phase. Compost of T2 had high quality (pH, total nitrogen, organic carbon, organic matter, ash, Cation Exchange Capacity (CEC), phosphorus and HA) compared to T1 and T3. The yield of HA of T2 was also significantly higher compared to those of T1 and T3. The compost characteristics of T1 and T3 were similar. The chemical characteristics of HA the 3 treatments were within the standard range reported by other researchers. Conclusion: T2 is more efficient in producing mature and good quality compost in 60 days compared to T1 and T3.

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“…As composting is an aerobic process, use of liquid manure (80% water content or more; Anonymous 2002) has previously been restricted to composting straw (Eiland et al 2001;Guerra-Rodriguez et al 2003) or to moistening poultry mortality compost (Gonzales and Sanchez 2005). Liquid manure from dairy cattle has previously been composted, but after air-drying to a maximum of 65% water content (Saludes et al 2007). For larger carcasses such as cattle or pigs, the utility of liquid manure in mortality compost has not been previously evaluated.…”

Section: Introductionmentioning

confidence: 99%