The evaluation of stability and maturity during the composting of cattle manure

Gómez-Brandòn, María; Lazcano, Cristina; Domínguez, Jorge

doi:10.1016/j.chemosphere.2007.06.065

Cited by 202 publications

(89 citation statements)

References 43 publications

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“…These results are similar to the findings of Eggen and Vethe (46) regarding ammonia-to-nitrate relation in maturing compost. A similar finding was also reported by Gomez-Brandon et al (47).…”

Section: Monitoring Of the Chemical Parameters Of Composting Mixturesupporting

confidence: 80%

Maturity and Stability Evaluation of Composted Municipal Solid Wastes

et al. 2016

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Background: Composting process is a feasible biological treatment for the recycling of municipal solid wastes as a soil amendment. The principal requirement of compost for it to be safely used in soil is a high degree of stability or maturity, which implies stable organic matter content as well as the absence of phytotoxic compounds and plant or animal pathogens. Objectives: At the present study, the maturity and stability of composted municipal solid wastes at a biocompost plant was evaluated. Materials and Methods: For the assessment of compost maturity, important parameters including temperature, moisture content, pH, electrical conductivity, carbon-to-nitrogen (C/N) ratio, microbial parameters including Salmonella, total and fecal coliforms were measured during the composting process (80 days). In addition, phytotoxicity as seed germination index and heavy metals concentration (Zn, Cu, Cr, Ni, Cd and Pb) was determined at the end of the composting time. Results:The results showed that the C/N ratio decreased during the composting process (reached to 15.6) due to the loss of carbon and the increase in nitrogen content per unit material; also, the NH 4 + /NO 3 ratio decreased with increase in the time of composting and reached

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Section: Monitoring Of the Chemical Parameters Of Composting Mixturesupporting

confidence: 80%

Maturity and Stability Evaluation of Composted Municipal Solid Wastes

et al. 2016

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“…This is also supported by Hubbe et al [17] that, action of microbes can be found in the variation of pH during composting and the best for competent biological decomposition of organic waste also depend on pH [18]. The optimum pH for the degradation of organic waste in between of 6 to 7.5 [12,19].…”

Section: Ph Valuesupporting

confidence: 53%

Evaluation of physical, chemical and heavy metal concentration of food waste composting

Azhari¹,

Jamaludin²

2017

MATEC Web Conf.

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Abstract:In this study, food waste composting with rice husk and coconut fibre as compost medium were carried out. Two types of different fermentation liquids were prepared which were fermented liquid (banana peel) and fermented liquid from fermented soybeans. During the composting process, a compost samples for a twenty week duration at an interval time of two weeks. Among the physico-chemical parameters that were tested were temperature, moisture content, pH value, Total Nitrogen, Total Phosphorous, Potassium and Total Organic Carbon and Carbon Nitrogen ratio. Heavy metals such as copper, cadmium, lead, nickel and arsenic were observed and analysed. From this study, it was found that, the temperature increased during the thermophilic phase while there was gradually increase of Total Nitrogen, Total Phosphorous and Potassium from the beginning till the end of the composting process. It was also found that the total organic carbon (TOC) and the carbon nitrogen ratio decreased significantly during the decomposition process. Traces amounts of heavy metals were also detected and remains below the standard Malaysian Environmental regulations. It was concluded that, the composting process was faster with processed food waste followed by combination of processed food waste and raw. Raw food waste were demonstrated the lowest degradation rate.

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“…The principal requirement of a compost for it to be safely used in agricultural soil is a high degree of maturity of stability (Bernal et al, 2009). Some attempts have been tried on testing the effects of different feedstocks on process performance (Prades et al, 2000;Zhu, 2007;Li et al, 2008;Himanen and Hännien, 2011), and on evaluating compost maturity by using different parameters (Grube et al, 2006;Ko et al, 2008;Gómez-Brandón et al, 2008). Up to now, for the co-composting of the two main livestock manures and rice straw, still, little information can be found when these two aspects (i.e., physical/chemical and biological/agronomical parameters) are taken into consideration simultaneously, thus no maturity evaluation index system with agronomical parameters included is available.…”

Section: China Pollution Source Census Issued By the Ministry Of Envimentioning

confidence: 99%

“…Many parameters have been used to indicate the maturation process of composting and included in the maturity parameters systems (Grube et al, 2006;Ko et al, 2008;Gómez-Brandón et al, 2008). In this study, the Solvita maturity index, a widely recognized and obtained by simple tests, is taken as a standard index.…”

Section: Maturity Evaluation Index Systemmentioning

confidence: 99%

Co-composting of livestock manure with rice straw: Characterization and establishment of maturity evaluation system

et al. 2014

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Abstract:Composting is considered to be the primary treatment method for livestock manure and rice straw, and high degree of maturity is the principal requirement for safe land application of composting product. In this study pilot-scale experiments were carried out to characterize the co-composting of livestock manure and rice straw, as well as to establish a maturity evaluation index system for the composts obtained.Two pilot composting piles with different feedstocks were conducted for 3 months: (1) swine manure and rice straw (SM-RS); and (2) dairy manure and rice straw (DM-RS).During the composting process, parameters including temperature, moisture, pH, total organic carbon (TOC), organic matter (OM), different forms of nitrogen (total, ammonia and nitrate), and humification index (humic acid and fulvic acid) were monitored in addition to germination index (GI), plant growth index (PGI) and Solvita maturity index. OM loss followed the first-order kinetics equation in both piles, and slightly higher OM mineralization rate was achieved in SM-RS pile. Also, SM-RS pile exhibited slightly better performance than DM-RS from the evolutions of temperature, OM degradation, GI and PGI. The C/N ratio, GI and PGI could be included in the maturity evaluation index system in which GI > 120% and PGI >1.00 signal mature co-composts.

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The evaluation of stability and maturity during the composting of cattle manure

Cited by 202 publications

References 43 publications

Maturity and Stability Evaluation of Composted Municipal Solid Wastes

Maturity and Stability Evaluation of Composted Municipal Solid Wastes

Evaluation of physical, chemical and heavy metal concentration of food waste composting

Co-composting of livestock manure with rice straw: Characterization and establishment of maturity evaluation system

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