Effect of C/N on composting of pig manure with sawdust

Huang, Guofeng; Wong, Jonathan W C; Wu, Qi‐Tang; Nagar, Bharat

doi:10.1016/j.wasman.2004.03.011

Cited by 503 publications

(304 citation statements)

References 20 publications

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“…This was mainly associated to the decrease of dry mass resulting from Numbers in square brackets meant mortality of ascarid egg, mean ± SD; N/A = none available mineralisation of organic matter, releasing loss of carbon dioxide and evaporation of water, higher increase of nitrogen than rice husk piles. Though loss of nitrogen during composting is a major concern in most works, some authors also found nitrogen conservation [44,45]. The decrease of nitrogen content in rice husk was caused by less biodegradable dissolved organic carbon in rice husk, and carbon loss as gas was limited.…”

Section: Discussionmentioning

confidence: 99%

Comparison and Evaluation of Co-composting Corn Stalk or Rice Husk with Swine Waste in China

Gao

Zhou

Wang

et al. 2015

Waste Biomass Valor

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An experimental composting system was employed to study the effect of different proportions of corn stalk, rice husk and swine waste on composting efficiency and final compost quality. Three dry mass ratios were designed with biological agent addition as blank contrast. After 84 days of a static aerobic composting process, full-scale comparison was investigated in maturity, organic nutrient and sanitarian properties. The results showed that the treatment of corn stalk co-composting with swine waste at 1:1.5 ratio with the addition of a biological agent was the first to achieve maturity and had a higher level of organic fertiliser quality, and hygienic indicators of the compost product were satisfied within the relevant standards for harm. Meanwhile, the effect of the biological agent on acceleration of degradation was verified in corn stalk composting. This study found rice husk compost did not reach ideal high temperature. The maturity effect of the final product was relatively poor. Except the treatment of rice husk mixing swine manure at 1:2 ratio with biological agent, other treatments of rice husk had lower and lesseffective products, no positive effect was observed in the rice husk compost. At the end of this paper some suggestions were given to develop new approaches for rice husk utilisation and reduce the cost of corn stalk co-composting.

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Section: Discussionmentioning

confidence: 99%

Comparison and Evaluation of Co-composting Corn Stalk or Rice Husk with Swine Waste in China

Gao

Zhou

Wang

et al. 2015

Waste Biomass Valor

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“…The range of EC into compost is 0.14-12 mS cm -1 which is suitable for the growth of plants (Huang et al 2004). Initial low value in electrical conductivity in waste composition shows the suitability of flower waste for composting.…”

Section: Moisture Contentmentioning

confidence: 99%

“…Germination index (GI), C: N ratio and carbon dioxide (CO 2 ) evolution Germination index is necessary for the determination of maturity and phytotoxicity effects of compost (Gao et al 2010;Huang et al 2004). Germination index is widely used to check the suitability of compost for agricultural purposes.…”

Section: Total Organic Carbon (Toc) Ash Content and Ammoniacal Nitromentioning

confidence: 99%

“…Figure 6c shows the variation of C:N ratio during the composting process. C:N ratio is a widely used parameter to indicate the maturity of the compost (Huang et al 2004;Jiang et al 2011). The initial C:N ratio of pile P 0 was 28 which reduced to 18 at the end of the composting period.…”

Section: Total Organic Carbon (Toc) Ash Content and Ammoniacal Nitromentioning

confidence: 99%

“…Several studies have been reported for agitated pile composting of organic waste such as vegetable waste (Varma and Kalamdhad 2014a), water hyacinth (Singh and Kalamdhad 2015), municipal solid waste (Iyengar and Bhave 2006), chicken litter (Gao et al 2010), sewage sludge and pig faeces (Huang et al 2004), food waste and saw dust (Zhou et al 2014). However, there is limited literature available on the composting of flower waste with cow dung and saw dust as bulking agent.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of chemical and biological characterization during agitated pile composting of flower waste

Sharma

Varma

Yadav

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose Flower waste dumping in landfills and other disposal sites is causing major environmental issues due to its highly biodegradable nature. Instead, flower waste can be successfully composted for its higher nutrient value. Therefore, this study evaluated the pile composting of flower waste with different combinations of cow dung and saw dust to produce stabilized compost. Methods Five agitated piles of flower waste mixture were formed in trapezoidal shape to perform the composting. Pile (P 0 ) was a control experiment, which contained 100 kg flower waste. The quantity of flower waste mixture with cow dung and saw dust in the other Piles was a total of 100 kg i.e. P 1 (50:40:10) kg, P 2 (60:30:10) kg, P 3 (70:20:10) kg and P 4 (80:10:10) kg, respectively. Results Temperature above 50°C was observed in all the piles except in P 0 . Physico-chemical characteristics of compost showed a stabilized compost obtained by proportionate mix of flower waste, cow dung and saw dust. Pile P 2 was observed with pH 7.23 and electrical conductivity 3.98 mS cm -1 , total organic carbon 30.9%, total nitrogen 2.31% and C:N ratio 14, thus a good proportion for compost amongst all the piles. Conclusions Appropriate proportion of waste mixture played an important role in providing favorable conditions for the microbial transformation of flower waste to stabilized compost. Temperature influenced the growth of microbes and maximum temperature was helpful in fast degradation of organic matter. Finally, flower waste with a combination of cow dung and saw dust was found to be successful during pile composting.

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Utilization of By‐Products from Food Processing as Biofertilizers and Biopesticides

Datta

Ullah

Ferdous

2017

Food Processing By‐Products and Their Utilization

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Effect of C/N on composting of pig manure with sawdust

Cited by 503 publications

References 20 publications

Comparison and Evaluation of Co-composting Corn Stalk or Rice Husk with Swine Waste in China

Comparison and Evaluation of Co-composting Corn Stalk or Rice Husk with Swine Waste in China

Evolution of chemical and biological characterization during agitated pile composting of flower waste

Utilization of By‐Products from Food Processing as Biofertilizers and Biopesticides

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