Intensification of vermitechnology for kitchen vegetable waste and paddy straw employing earthworm consortium: Assessment of maturity time, microbial community structure, and economic benefit

In the coffee industry, several by-products are generated during the production and consumption of coffee and represent an important waste from an environmental viewpoint. For improving the knowledge about this issue, a laboratory vermicomposting study of coffee silverskin (CS) and spent coffee grounds (SCG) spiked with mature horse manure (HM) in different proportions and using earthworm Eisenia andrei was carried out. The 60-day study focused on biological parameters such as total biomass gain, growth rate, cocoon production, and mortality. This study also investigated whether the vermicompost obtained could be useful and lacked toxicity through a seed germination test using hybrid wheat seeds. Results showed a disparity depending on the type of residue and the mixture used. Best options were those treatments with a medium–low amount of residue; 25% for SCG and 25% or 50% for CS. In addition, lack of toxicity was confirmed in all treatments. In conclusion, it is possible to carry out a vermicomposting of SCG and CS with some specific features.

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“…Better results were shown in our study. Nevertheless, Hussain et al [61] published values which fall…”

Section: Germination Resultsmentioning

confidence: 98%

Feasibility of Vermicomposting of Spent Coffee Grounds and Silverskin from Coffee Industries: A Laboratory Study

et al. 2020

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“…1The root and shoot length of the seedlings were measured after 8 days of germination. The relative seed germination (RSG), relative root growth (RRG), relative shoot growth (RShG) and germination index (GI) were calculated using the following equations (Hussain et al, 2018):…”

Section: Germination Rate ሺ%ሻ =mentioning

confidence: 99%

A wastewater bacterium Bacillus sp. KUJM2 acts as an agent for remediation of potentially toxic elements and promoter of plant (Lens culinaris) growth

et al. 2019

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“…Figure 4 shows the OM behavior for corn cob waste where the initial value was 82.2%, coinciding with 80.54% for corn residue and cow manure [16]. During this process, OM A subsequential pH decrease to 6.37 was manifested during week 3; due to the liberation of organic acids due to the degradation of organic matter [17]. Ultimately, a pH of 6 was observed, indicating that the process had stabilized [39].…”

Section: Organic Mattermentioning

confidence: 98%

“…Before the vermicomposting took place, it was decided that performing a precomposting for corn cob waste would be advantageous for acceleration of the process [17].…”

Section: Pre-compostingmentioning

confidence: 99%

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Vermicomposting: A Valorization Alternative for Corn Cob Waste

et al. 2021

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As vermicomposting has become a viable alternative for the valorization of organic waste; the objectives of this research were to (1) assess the feasibility of said process for corn cob waste (corn cobs and corn husks) and (2) evaluate the operation conditions for the biodegradation of different mixtures with load material (LM). LM did not include animal excreta as a nitrogen source, a practice widely used in a range of studies. The experiment consisted of an initial phase of pre-composting in order to obtain a partially stabilized substrate. Subsequently, four separate mixtures were made consisting of corn cob waste mixed with consistent load material (LM) containing vegetable waste and eggshells (CR, M1, M2, M3) to obtain a balance substrate able to facilitate degradation using Eisenia fetida earthworms. The following parameters were analyzed during the control process: temperature, pH, humidity, organic material (OM), total organic carbon (TOC), total nitrogen (TN) and carbon/nitrogen (C/N) ratio. The analysis of the final values of the stabilized mixtures showed that vermicomposting is indeed a feasible alternative for the degradation of corn cob waste for use as a soil improver.

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Intensification of vermitechnology for kitchen vegetable waste and paddy straw employing earthworm consortium: Assessment of maturity time, microbial community structure, and economic benefit

Cited by 68 publications

References 43 publications

Feasibility of Vermicomposting of Spent Coffee Grounds and Silverskin from Coffee Industries: A Laboratory Study

Feasibility of Vermicomposting of Spent Coffee Grounds and Silverskin from Coffee Industries: A Laboratory Study

A wastewater bacterium Bacillus sp. KUJM2 acts as an agent for remediation of potentially toxic elements and promoter of plant (Lens culinaris) growth

Vermicomposting: A Valorization Alternative for Corn Cob Waste

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