The Suitability of Using Vermicomposting for the Stabilization of Septic Tank Waste

Schaik, A. Van; Prosser, J.A.; Graham, Doug; Xue, Jianming; Booth, Lynn; Horswell, Jacqui

doi:10.4172/2155-6199.1000368

Cited by 2 publications

(3 citation statements)

References 26 publications

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“…Their results agree with the findings of the present study, were high Olsen P was observed in the cow and pig manure RP-enriched treatment with E. fetida only compared to control treatment. In another study, Schaik, et al [55] conducted an experiment, where they investigated the practicality of vermicomposting septic tank waste using E. fetida. In their study, they noticed an increase of Olsen P in all the treatments during vermicomposting, until day 89 after which a steady state was reached.…”

Section: 5mentioning

confidence: 99%

Influence of Microbial Inoculation of Igneous Rock Phosphate-Amended Cow and Pig Manures on Vermidegradation and Nutrient Release

et al. 2020

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Vermicomposting using Eisenia fetida has been shown to improve phosphorus mineralization from rock phosphate (RP). There is, however, a lack of information on the potential of integrating microbial inoculants like phosphate-solubilizing bacteria (PSB) during vermicomposting as a way of improving vermidegradation, and the release of nutrients from igneous RP-amended composts. This study evaluated the potential of using Eisenia fetida and Pseudomonas fluorescence in enhancing the vermidegradation, and nutrient release in igneous RP- amended cow and pig manure-based vermicomposts at a C/N ratio of 30. Compost maturity, nutrient and phytotoxicity parameters were measured to determine vermicompost quality. Final vermicompost results showed that the pig manure treatments achieved greater maturity as indicated by lower C/N of 10.3, high humification index (HI) of 7.6%, and humification ratio (HR) of 12.89% in the treatment with E. fetida and P. fluorescence. The inclusion of E. fetida alone in cow manure treatment resulted in the highest Olsen P of 2600 mg/kg, followed by the pig manure treatment with E. fetida only (2246.15 mg/kg). In conclusion, both E. fetida and P. fluorescence are necessary in the vermicomposting of RP-enriched pig and cow manure for efficient vermi-degradation and nutrient release.

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Section: 5mentioning

confidence: 99%

Influence of Microbial Inoculation of Igneous Rock Phosphate-Amended Cow and Pig Manures on Vermidegradation and Nutrient Release

et al. 2020

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“…Vermicomposts were produced by the earthworm Eisenia fetida from different combinations of septic tank waste or dairy shed solids (mainly cow manure) with horticultural factory wastes (tomato prunings and palm fibre as bulking agents), as described by Schaik et al (2016). Briefly, 4 different products tested in this study were produced from our previous vermicomposting trial, including (1) a compost from 50% septic tank waste + 40% palm fibre + 10% tomato prunings made without worms (referred to as HS-compost), (2) vermicompost from 50% septic tank waste + 40% palm fibre + 10% tomato prunings + worms (referred to as HS-vermicompost), (3) vermicompost from 30% septic tank waste + 60% palm fibre + 10% tomato prunings + worms (referred to as LS-vermicompost) and (4) vermicompost from 30% cow manure + 60% palm fibre + 10% tomato prunings + worms (referred to as CMvermicompost).…”

Section: Characteristics Of Vermicomposts and The Soilmentioning

confidence: 99%

“…The concomitant use of several green waste products along with the septic tank wastes will add value to the resultant vermicomposting product, which may make land application or its use in potting media more publicly acceptable. In previous studies, vermicomposting has been shown to produce a stabilized product and reduce or even eliminate pathogen from the wastes (Eastman et al 2001;Monroy et al 2009;Rodríguez-Canché et al 2010;Schaik et al 2016). One likely destination for these stabilized products in New Zealand is the forestry sector, which is characterized both by exotic fast-growing tree species and by natural forests composed of a variety of endemic native tree species, of which some can be used for production purposes.…”

Section: Introductionmentioning

confidence: 99%

Enhancement in soil fertility, early plant growth and nutrition and mycorrhizal colonization by vermicompost application varies with native and exotic tree species

et al. 2022

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Purpose The impact of vermicompost on tree-soil systems is not yet fully understood. This study aimed to comparatively investigate the effects of chemical fertilizer, compost and vermicompost on soil enzymatic activities, seedling mycorrhizal colonization, growth and nutrition of one exotic tree species (radiata pine, Pinus radiata D. Don) and two native tree species (mānuka, Leptospermum scoparium and tōtara, Podocarpus totara). Methods A 12-month-long pot trial was set up in the glasshouse with a factorial design of three tree species (radiata pine, tōtara and manuka) by six treatments, including T1-control, T2-chemical fertilizer, T3-HS compost, T4-HS vermicompost, T5-LS vermicompost and T6-CM vermicompost. We assessed the main effects and interactions of treatment and species on soil chemical and biological properties, plant growth and nutritional responses. Results Compared to the untreated control (T1), application of vermicomposts (T4-T6) and compost (T3) significantly improved soil chemical properties and enzymatic activities, and increased total seedling dry weight by 160–260%, shoot concentrations of nitrogen (N) by 54–97% and phosphorus (P) by 61–91%. Vermicomposts were comparable to diammonium phosphate (DAP) applied at 133 kg N ha−1 (T2) in stimulating the growth of native species (mānuka and tōtara) without negative impact on mycorrhizal colonization, with T5 being better than DAP (T2) in promoting mānuka growth. However, application of vermicompost alone was less effective than DAP in stimulating the exotic radiata pine growth. Overall, soil activities of dehydrogenase, urease, acid phosphatase and invertase were significantly and positively correlated to total C and N and exchangeable Ca and Mg. Conclusion The increased growth of three tree species after application of vermicomposts was mainly related to improved N and P nutrition associated with enhanced root growth and soil enzymatic activities. Our findings imply that the vermicomposting products from septic tank waste could be a promising alternative to inorganic fertilizers in land application or greenhouse potting media of native tree species.

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The Suitability of Using Vermicomposting for the Stabilization of Septic Tank Waste

Cited by 2 publications

References 26 publications

Influence of Microbial Inoculation of Igneous Rock Phosphate-Amended Cow and Pig Manures on Vermidegradation and Nutrient Release

Influence of Microbial Inoculation of Igneous Rock Phosphate-Amended Cow and Pig Manures on Vermidegradation and Nutrient Release

Enhancement in soil fertility, early plant growth and nutrition and mycorrhizal colonization by vermicompost application varies with native and exotic tree species

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