The potential reuse of soybean husk as feedstock of <i>Eudrilus eugeniae</i> in vermicomposting

Lim, Pei Nie; Wu, Ta Yeong; Sim, Edwin Y. S.; Lim, Su Lin

doi:10.1002/jsfa.4504

Cited by 67 publications

(40 citation statements)

References 45 publications

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“…The final pH values in all the reactors (average 8.6) ended up to be above 8.0. Although pH decreased in some reactors due to the formation of CO 2 and organic acids (Sharma et al 1997;Lim et al 2011), it increased again during the process. Ammonia formation occurs as a consequence of ammonification of organic nitrogen due to intense microbial activity and organic matter degradation during the early stage of composting; consequently, the dissolution of ammonia leads to the formation of ammonium and an increase in pH (Sánchez-Monedero et al 2001).…”

Section: Organic Matter Contentmentioning

confidence: 99%

Composting of olive processing wastes and tomato stalks together with sewage sludge or dairy manure

Şevik

Tosun

Eki̇nci̇

2016

Int. J. Environ. Sci. Technol.

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In this study, composting of olive pomace from three-phase oil production system, sewage sludge, dairy manure, and tomato stalks were carried out. The effects of carbon/nitrogen ratio on decomposition rate of composting were investigated with constant free air spaces of composting mixtures. Composting process was carried out in the aerobic reactors made of stainless steel which were monitored for 32 days. Temperature-controlled feedback system was operated based on the Rutgers strategy. Temperature, moisture, organic matter, pH, electrical conductivity total carbon, total nitrogen, ammonium nitrogen and nitrate nitrogen, total phosphorus as well as potassium were monitored during the composting process. In addition, mass and volume changes of the mixtures were determined. The highest degree of decomposition was determined for the mixture (carbon/nitrogen ratio of 20) based on the dry matter loss where the maximum amount of sewage sludge was used. On the other hand, maximum decomposition occurred at a carbon/nitrogen ratio of 23 for mixtures containing dairy manure. The increase in the use of olive pomace in mixtures had adverse effects on the decomposition process. The stabilization process in the mixture containing dairy manure lasted shorter than the mixtures containing sewage sludge.

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Section: Organic Matter Contentmentioning

confidence: 99%

Composting of olive processing wastes and tomato stalks together with sewage sludge or dairy manure

Şevik

Tosun

Eki̇nci̇

2016

Int. J. Environ. Sci. Technol.

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“…The experimental beddings were conducted in triplicate for each treatment. The vermireactors were kept in the dark at room temperature of 25 ± 2°C, which is the optimum temperature of E. eugeniae (Lim et al 2011). The duration of the vermicomposting process was 12 weeks.…”

Section: Experimental Set Upmentioning

confidence: 99%

“…Furthermore, vermicompost is less likely than synthetic fertilizer to produce salinity stress in the soil container (Chaoui et al 2003). This technology has been used to stabilize biodegradable wastes generated from different industries such as oil palm industry (Sabrina et al 2009;Nahrul Hayawin et al 2010), olive oil industry (Masciandaro et al 2010), paper mill industry , soybean oil industry (Lim et al 2011), sugar cane industry (Suthar 2010b) and others.…”

Section: Introductionmentioning

confidence: 99%

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

Lim

Clarke

et al. 2014

Int. J. Environ. Sci. Technol.

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Vermicomposting is a process to biotransform organic solid wastes into valuable product, namely vermicompost using epigeic earthworms. Vermicomposting technology may provide a low-input basis for sustainable management of organic solid waste. The present study was to investigate the suitability of oil palm empty fruit bunches to be reused as feedstocks of Eudrilus eugeniae for the duration of 12 weeks. Empty fruit bunches were mixed with cow dung in different ratios to produce five different treatments for laboratory screening of solid waste. The growths of E. eugeniae were monitored weekly. All treatments encouraged the growth of E. eugeniae except the treatment with empty fruit bunches alone. The maturity and quality of vermicompost were assessed through carbon-tonitrogen ratio, calcium, phosphorus, potassium and magnesium. Generally, all treatments showed increases in total contents of calcium (39.38-373.17 %), phosphorus (15.15-390.54 %), potassium (45.55-153.66 %) and magnesium (55.86-370.93 %) but a decrease in carbon-tonitrogen ratio (11.24-76.24 %) after 12 weeks of vermicomposting process. Besides, parameters such as pH and electrical conductivity were also investigated in this paper.Among all the treatments investigated, empty fruit bunches that were mixed with cow dung in the ratio of 2:1 were biotransformed into the most superior quality vermicompost (carbon-to-nitrogen ratio, 18.53; calcium, 7.76 g/kg; phosphorus, 3.63 g/kg; potassium, 12.81 g/kg; and magnesium, 4.05 g/kg). In conclusion, vermicomposting could be used as an efficient technology to convert empty fruit bunches into nutrient-rich organic fertilizers if the wastes were mixed with cow dung in an appropriate ratio.

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“…The EC of the test compost was 2.11 m mhos/cm. Reports suggested that the application of E. eugeniae increased the EC value and permitted a significant increase in salts such as Ca (42.3-91.6%), K (93.8-235%), Mg (25.4-84.6%) and P (37.1-129%) due to degradation of organic matter, which is important in delivering essential minerals to the plant (Lim et al 2011). Janakrinam and Sridevi (2010) reported an increase of EC content from 7.39 to 10.77 m mho/cm during MSW composting.…”

Section: Chemical Analysis Of the Compostmentioning

confidence: 99%

Bioconversion of organic solid wastes into biofortified compost using a microbial consortium

Sarkar

Chourasia

2017

Int J Recycl Org Waste Agricult

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The potential reuse of soybean husk as feedstock of Eudrilus eugeniae in vermicomposting

Abstract: Vermicomposting could be used as an efficient technology to convert soybean husk into nutrient-rich organic fertiliser if it was mixed with market-rejected papaya in appropriate ratio.

Cited by 67 publications

References 45 publications

Composting of olive processing wastes and tomato stalks together with sewage sludge or dairy manure

Composting of olive processing wastes and tomato stalks together with sewage sludge or dairy manure

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

Bioconversion of organic solid wastes into biofortified compost using a microbial consortium

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