Effectiveness of inoculation with isolated Geobacillus strains in the thermophilic stage of vegetable waste composting

Sarkar, Samrat; Banerjee, Rajdeep; Chanda, Sukalpa; Das, Pradeep; Ganguly, Subha; Pal, Subrata

doi:10.1016/j.biortech.2009.11.095

Cited by 69 publications

(23 citation statements)

References 19 publications

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“…Therefore, inoculation with microorganisms capable of making available easily metabolizable compounds could be a useful strategy for enhancing the properties of final products and shortening the time needed to achieve stability (Bolta et al, 2003), though it has to be mentioned that some contradictory results have been reported on the benefits of inoculation (Golueke et al, 1954;Zeng et al, 2010). Inocula for composting are generally composed of one or a few strains with selected enzymatic capabilities (Vargas-García et al, 2005;Sarkar et al, 2010;Zeng et al, 2010), although it stands to reason that microorganisms naturally occurring in compost piles would be the best candidates for this purpose.…”

Section: Introductionmentioning

confidence: 98%

Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting

Jurado

Suárez‐Estrella

López

et al. 2015

Bioresource Technology

182

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Section: Introductionmentioning

confidence: 98%

Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting

Jurado

Suárez‐Estrella

López

et al. 2015

Bioresource Technology

182

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“…In India, more than one-fourth of the municipal solid waste (MSW) produced comprises vegetables, fruits and animal matter (Sarkar et al 2010) and the organic fractions of the MSW makes up 40-85 % of the total waste generated (NSWAI 2003). Vegetable waste with high biodegradable organic matter can be successfully composted for its reuse of nutrients as fertilizer and soil conditioner (Crowe et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Evolution of chemical and biological characterization during thermophilic composting of vegetable waste using rotary drum composter

Varma

Kalamdhad

2014

Int. J. Environ. Sci. Technol.

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Vegetable waste usually contains high levels of organic matter, moisture and nutrients that make the waste unsuitable for disposal in municipal landfills. Composting of vegetable waste is in practice by many urban local bodies, and therefore, it was composted along with cow dung and sawdust in a 550-L batch scale rotary drum composter. Four different trials of varying waste combinations of vegetable waste, cow dung and sawdust, i.e

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“…Variations in pH during the initial stages of composting are remarkably altered by microbial activity, and for optimal composting neutral pH was reported in several earlier works (22)(23)(24). During initial phase of composting, the initial pH of compost mix (pH=7.42) in the treatment with bacterial consortium significantly decreased to around 5.5 on day 3 (Fig.…”

Section: Changes In Temperature and Phmentioning

confidence: 84%

“…Changes in composting temperature strongly reflect the metabolic activity of microorganisms during composting (22,23). Fig.…”

Section: Changes In Temperature and Phmentioning

confidence: 99%

In-Vessel Co-Composting of Food Waste Employing Enriched Bacterial Consortium

Awasthi¹,

Wang²,

Wang³

et al. 2017

Food Technol. Biotechnol.

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SUMMARYThe aim of the present study is to develop a good initial composting mix using a bacterial consortium and 2 % lime for effective co-composting of food waste in a 60-litre in-vessel composter. In the experiment that lasted for 42 days, the food waste was first mixed with sawdust and 2 % lime (by dry mass), then one of the reactors was inoculated with an enriched bacterial consortium, while the other served as control. The results show that inoculation of the enriched natural bacterial consortium effectively overcame the oil-laden co-composting mass in the composter and increased the rate of mineralization. In addition, CO 2 evolution rate of (0.81±0.2) g/(kg·day), seed germination index of (105±3) %, extractable ammonium mass fraction of 305.78 mg/kg, C/N ratio of 16.18, pH=7.6 and electrical conductivity of 3.12 mS/cm clearly indicate that the compost was well matured and met the composting standard requirements. In contrast, control treatment exhibited a delayed thermophilic phase and did not mature after 42 days, as evidenced by the maturity parameters. Therefore, a good composting mix and potential bacterial inoculum to degrade the oil are essential for food waste co-composting systems.

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Effectiveness of inoculation with isolated Geobacillus strains in the thermophilic stage of vegetable waste composting

Cited by 69 publications

References 19 publications

Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting

Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting

Evolution of chemical and biological characterization during thermophilic composting of vegetable waste using rotary drum composter

In-Vessel Co-Composting of Food Waste Employing Enriched Bacterial Consortium

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