Effect of storage and composting on the properties and degradability of cattle manure

Atallah, T.; Andreux, F.; Chone, Thérèse; Gras, F.

doi:10.1016/0167-8809(95)00595-j

Cited by 21 publications

(9 citation statements)

References 11 publications

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“…The vacuum applied during rotary evaporation (45°C) or freeze‐drying (−53°C) caused negligible losses in N contents through volatilization, as indicated by minimal differences between C to N ratios for rotary‐evaporated, freeze‐dried, and air‐dried BM (16.76, 16.46, and 16.15, respectively) (Table 1). This is consistent with previous investigations (Mahimairaja et al, 1990; Atallah et al, 1995), showing that freeze‐drying caused limited loss of N when compared with other drying methods. In general, the C to N ratios for BM products and FYM were significantly smaller than the C to N ratio for MWC (Table 1).…”

Section: Resultssupporting

confidence: 93%

“…This seems to confirm the dependence of ion concentration on the drying technique and processing time (90 and 60 d). Similar results for dried manure materials were reported by Atallah et al (1995)…”

Section: Resultssupporting

confidence: 90%

“…The decomposition index, introduced by Atallah et al (1995) as the biodegradation index, may be considered a simplified equivalent of the decomposition rate constant k , conveying essentially the same information (about the stability of organic carbon) in convenient integer values: organic materials that decompose faster will show higher DI and k values than less decomposable materials. Based on the DI and k values, organic materials tested in this study can be ordered as follows: BM > FYM > MWC.…”

Section: Resultsmentioning

confidence: 99%

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Physicochemical Characteristics of Animal and Municipal Wastes Decomposed in Arid Soils

et al. 2005

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The application of anaerobically processed animal manure to maintain adequate levels of organic matter in arid soils is becoming a common practice. The purpose of this study was to characterize two farm manure products as compared with municipal waste compost (MWC). The anaerobic processing to obtain a biogas manure (BM) product was much faster (25 d) than the aerobic composting of farmyard manure (FYM) (90 d). Drying by three different methods (solar-drying, vacuum-drying at 45 degrees C, and freeze-drying) did not affect the quality of BM. Based on the chemical characteristics, FYM and BM products were comparable, and, containing less ash (30%) and heavy metals (50 mg Pb kg(-1)), seemed superior to MWC that contained 65% ash and 108 mg Pb kg(-1). On the other hand, MWC had higher C content (69.9%), lower acidity (15.04 mol kg(-1)), and higher exothermic peaks (300-460 degrees C) than BM and FYM (50% C, 20 mol kg(-1), and 275-450 degrees C, respectively), thus showing a greater extent of humification. Also, when the organic materials were incubated with arid soils and monitored for mean residence times (MRT), MWC was slightly more resistant to decomposition (MRT 175-180 d) than BM or FYM (MRT 161-166 d). The observed differences, however, were too small to dismiss any of the products as a valuable material for land applications to improve soil quality. In view of the results obtained, MWC may be considered an adequate substitute for BM or FYM, whenever the latter are in short supply.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

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Physicochemical Characteristics of Animal and Municipal Wastes Decomposed in Arid Soils

et al. 2005

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“…Significant progress has been made in quantifying the effects of temperature (Griffin and Honeycutt, 2000;Griffin et al, 2002) soil water status (Drury et al, 2003), and soil texture (Griffin et al, 2002;Sørensen and Jensen, 1995;Thomsen et al, 2003) on many aspects of N availability, including the rate and extent of mineralization and nitrification, soil N retention, and potential environmental loss of N. Likewise, opportunities for improving the retention of manure N during storage, handling, and application have been evaluated, with an emphasis on retaining readily available urea or NH 4 in the manure (Atallah et al, 1995;Sørensen and Jensen, 1996). The practical application of these efforts has been to develop coefficients for mineralization of manure organic N (Chadwick et al, 2000;Douglas and Magdoff, 1991;Klausner et al, 1994) or describe the potential recovery of the inorganic N fraction of manure (Paul and Beauchamp, 1989;Thomsen, 2001), recognizing that these coefficients are generalized guidelines that commonly do not account for differences in manure composition.…”

Section: Introductionmentioning

confidence: 98%

Manure composition affects net transformation of nitrogen from dairy manures

Griffin

Honeycutt

2005

Plant Soil

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The plant available nitrogen (PAN) content of dairy manure is commonly calculated using concentration and availability coefficients for organic nitrogen (N) and ammonium N (NH 4 ), but the carbon (C) fraction of the manure also influences the availability of N over time. We evaluated the interactive effect of manure C and N from nine dairy manures during a 176 days aerobic incubation. All of the manures had appreciable NH 4 content, and varied widely in fibrous C. The incubation was conducted using sandy loam (coarse-loamy, mixed, frigid, Typic Haplorthod) and silt loam (fine, illitic, non-acid, frigid, Aeric Epiaquepts) soils at 25°C and 60% water-filled pore space. There were clear differences in nitrate (NO 3 ) accumulation over time, including manures that resulted in net nitrification and net immobilization. For both soils, the rate of nitrification at 7 and 56 days after application, and the amount of NO 3 accumulated at the end of the incubation (176 days) were strongly correlated (r ¼ )0.88) with C: NH 4 and also to the ratio of neutral detergent fiber (NDF):NH 4 (r ¼ )0.90). The addition of manure C also resulted in significant net immobilization, compared to addition of mineral N fertilizer alone. These studies demonstrate that increased understanding of manure C and N interactions may lead to improved prediction of manure PAN.Abbreviations: ADF -acid detergent fiber; NDF -neutral detergent fiber; PAN -plant available N; WFPS -water-filled pore space

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“…In addition, dewatering the solid fraction lowers the cost of shipping, facilitating the export of nutrients from the areas with excess of manure and the redistribution to other areas in need of nutrients 5. Before its transport, solid fraction can be subjected to dry anaerobic digestion and/or the composting process, which would represent an additional reserve of more stable organic carbon and nitrogen for the cultivated soil 17.…”

Section: Introductionmentioning

confidence: 99%

Effect of mixing on biogas production during mesophilic anaerobic digestion of screened dairy manure in a pilot plant

Rico¹,

Rico²,

Muñoz³

et al. 2011

Engineering in Life Sciences

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The effect of mixing on biogas production of a 1.5‐m3 pilot continuous stirred tank reactor (CSTR) processing screened dairy manure was evaluated. Mixing was carried out by recirculation of reactor content with a mono pump. The experiment was conducted at a controlled temperature of 37±1°C and hydraulic retention times (HRTs) of 20 and 10 days. The effect of continuous and intermittent operation of the recirculation pump on biogas production was studied. At 10 days of HRT, the results showed a minimal influence of recirculation rate on biogas production and that continuous recirculation did not improve reactor performance. At 20 days of HRT, the recirculation rate did not affect reactor performance. Combination of low solid content in feed animal slurry and long HRTs results in minimal mixing requirements for anaerobic digestion.

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Effect of storage and composting on the properties and degradability of cattle manure

Cited by 21 publications

References 11 publications

Physicochemical Characteristics of Animal and Municipal Wastes Decomposed in Arid Soils

Physicochemical Characteristics of Animal and Municipal Wastes Decomposed in Arid Soils

Manure composition affects net transformation of nitrogen from dairy manures

Effect of mixing on biogas production during mesophilic anaerobic digestion of screened dairy manure in a pilot plant

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