Vermicomposting of citronella bagasse and paper mill sludge mixture employing Eisenia fetida

Boruah, Tridip; Barman, A.; Kalita, Pankaj; Lahkar, Jiumoni; Deka, Hemen

doi:10.1016/j.biortech.2019.122147

Cited by 80 publications

(24 citation statements)

References 38 publications

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“…Humi cation index is an indicative parameter for compost/vermicompost stabilization (Das and Deka 2021). The decreasing trend in HI level after vermicomposting process has already been reported by earlier workers (Negi and Suthar 2018;Boruah et al 2019). The reductions in the HI value infer the gradual breakdown and deprivation of organic complexes in the substrate mixture due to joint action of available microbes and the earthworm.…”

Section: Discussionmentioning

confidence: 68%

“…The reductions in the HI value infer the gradual breakdown and deprivation of organic complexes in the substrate mixture due to joint action of available microbes and the earthworm. It has been suggested that the lower values of HI in vermicomposted materials strongly supports the active action of earthworm and microbes during the organic waste degradation (Boruah et al 2019). Besides, the low HI value directly correlates with the high level of humi cation of organic material (Bhat et al 2017) during the vermicomposting process.…”

Section: Discussionmentioning

confidence: 99%

“…Vermicomposting of biowaste has gain a research attention globally and re ected as auspicious and justi able bio based technology to recycle organic waste (Srivastava et al 2020). Several studies have already established the suitability of vermitechnology in mitigation of organic waste (Yuvaraj et al 2019;Pellejero et al 2020) including the waste bagasse of aromatic plants industries (Boruah et al 2019). Nonetheless, understanding of stability and maturity of vermicomposting products are utmost important as these are linked with the harvest e cacy and agricultural applicability.…”

Section: Introductionmentioning

confidence: 99%

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Biochemical and Instrumental Characterization of Vermicompost Produced From Patchouli Bagasse: A Waste by-product of Essential Oil Industries

Ahmed¹,

Deka²

2021

Preprint

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Biochemical and instrumental analysis was carried out for understanding the maturity and stability of the vermicomposted patchouli bagasse (PB) and cow dung (CD) mixtures. Two important enzymes namely urease and dehydrogenase were evaluated to understand the biological changes. On the other hand, instrumental study includes scanning electron microscopy (SEM) imaging; X-ray diffraction (XRD) pattern and UV-VIS spectrophotometer analysis of the vermicomposting end products. The results showed enhancement in urease (1.14-2.84 folds) and dehydrogenase (1.7-3.1 folds) activities confirming the maturity and stability of the vermicomposting end products. The spectrophotometric analysis revealed that there was significant decrease in humification index (1.5 to 3.4 folds) in the vermicompost samples than the initial level. The SEM images depicted the porous, fragmented and granular structure of end vermicompost samples. Further, the XRD analysis showed the micromorphological crystalline structure and enhanced decomposition of the substrate mixture during vermicomposting process. As a whole, the end vermicompost product was found to be much stable and mature for agronomic use.

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Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biochemical and Instrumental Characterization of Vermicompost Produced From Patchouli Bagasse: A Waste by-product of Essential Oil Industries

Ahmed¹,

Deka²

2021

Preprint

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“…The particle-size distribution of the finished compost was determined according to the sieve method of Gabhane et al [20]. Analysis of the CB outer epidermis structure was analyzed using the stereomicroscope and scanning electron microscope (SEM) imagery structural analysis [21]. According to Wang et al [22], x-ray diffraction (XRD) was used to estimate the microstructure changes of CB cellulose.…”

Section: Physical Propertiesmentioning

confidence: 99%

Combined Addition of Bovine Bone and Cow Manure: Rapid Composting of Chestnut Burrs and Production of a High-quality Chestnut Seedling Substrate

Chen

Tian

et al. 2020

Agronomy

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In China, chestnut burrs (CB) are produced at a rate of a million tons per year as the major byproduct of chestnut orchards. It is necessary to utilize the chestnut forest green waste and convert it into a valuable seedling media for the sustainable cultivation of chestnut seedlings. In this study, we composted CB with two waste products of cattle farming, namely cow manure (CM) and bovine bone (BM). We also evaluated the potential of CB compost application in chestnut forest sustainability. Results indicated that the best combination was the addition of 15% BM and 55% CM. This combination significantly improved the composting environment by increasing pH, enhancing phosphorus concentration and mineral elements such as Ca, Na, Mg and Zn, and shortened the composting period to 38 days. This combination also resulted in the highest content of citric acid-P (109.20 times than the control treatment) and the lowest content of NH 4 + -N (0.28 times than control treatment) indicating a better N and P structure of the final compost product. This combination achieved a greater degradation rate of CB cellulose (61.45%), hemicellulose (37.87%), and a more significant degradation of outer epidermis structure. When CB compost was used as a growing media, a significant decrease in photosynthesis stress of chestnut seedlings was observed, which was mainly manifested as a decrease in photochemical quenching (qP) and an increase of the maximum efficiency of PSII photochemistry under dark-adaption (Fv/Fm). Addition of 10% CB compost (in volume basis) is suggested, which resulted in the tallest chestnut seedlings (59.83 cm) with a stem diameter of 0.91 cm after six months of growth. In summary, this research provides an environmentally friendly strategy for chestnut orchard sustainability: rapid composting of CB, then immediate application as a high-quality substrate for chestnut seedlings.Agronomy 2020, 10, 288 2 of 18 step for chestnut production. The popularization of burr removal equipment has resulted in the need for intensive management of CB. Due to CB recalcitrant biodegradability and knotty spicular structure, incineration is still the main method of dealing with CB waste [3,4]. Since CB, as FGW, is rich in organic matter and minerals, it is desirable to convert it into a high value byproduct such as compost.Composting is a popular and clean method to dispose of FGW [5]. Mature FGW compost has high porosity and high organic carbon content and can be utilized as a high-quality soil amendment [6]. Shrestha et al. [7] reported that the application of compost increased soil organic carbon content, reduced CO 2 and N 2 O emissions, and increased CH 4 uptake. Chehab et al. [8] indicated that the olive FGW compost amendment resulted in an increased performance in mature olive trees and in a maximum yield of photosystem II (Fv/Fm). Composting recycles organic matter, nitrogen, phosphorous, and mineral elements in the FGW when growing seedlings [9]. In a recent study, Shalizi et al. [10] increased the biomass of Eucalyptus bentham...

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“…The e cacy of vermicomposting for management of different types of bio-waste including postharvest biomass of agricultural eld has already been established by several workers round the globe. For example, e cacy of vermicomposting has been tested in wheat crop residues (Suthar 2009), rice husk (Lima et al 2012, citronella bagasse (Boruah et al 2019), paper industry sludge (Karmegam et al 2019) and others. However, the success of vermicomposting depends on several factors such as nature, origin, palatability, nutrients pro le of substrate materials, type of earthworms and other environmental parameters that mainly include temperature and moisture.…”

Section: Introductionmentioning

confidence: 99%

Vermicomposting of harvested waste biomass of potato crop employing Eisenia fetida: changes in nutrient profile and assessment of the maturity of the end products

Das

Deka

2021

Environ Sci Pollut Res

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Vermicomposting potential of waste biomass of potato crop that are generated at the time of harvesting was studied employing Eisenia fetida. The experiment was carried out in pots taking two treatments; in one only potato plant biomass (PPB) was taken as raw materials whereas in the other a mixture of PPB with cow dung was engaged in the proportion of 5:1. The vermicomposted materials showed a reduction in C/N ratio, humi cation index, enhancement in nutrients pro les, ash contents, nitrogen-xing, phosphate and potassium solubilizing bacterial population. The macronutrient enhancement in the vermicompost samples was recorded 3.8-4.4 fold for total N, 5-5.6 fold in available P, 1.6 fold in total K, 5.2-6.2 fold in total Ca and 1.6 fold in total Mg contents. The reduction in C/N was found in the rage of 92.5-94.4% in the vermicompost samples. The scanning electron microscope (SEM) images showed higher disintegration in the vermicompost products when compared with initial raw material and compost samples. Addition of cow dung signi cantly enhanced the quality and quantity of vermicompost nal products besides positively affecting the earthworm population and biomass by the end of 60 days of experimental trials.

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Vermicomposting of citronella bagasse and paper mill sludge mixture employing Eisenia fetida

Cited by 80 publications

References 38 publications

Biochemical and Instrumental Characterization of Vermicompost Produced From Patchouli Bagasse: A Waste by-product of Essential Oil Industries

Biochemical and Instrumental Characterization of Vermicompost Produced From Patchouli Bagasse: A Waste by-product of Essential Oil Industries

Combined Addition of Bovine Bone and Cow Manure: Rapid Composting of Chestnut Burrs and Production of a High-quality Chestnut Seedling Substrate

Vermicomposting of harvested waste biomass of potato crop employing Eisenia fetida: changes in nutrient profile and assessment of the maturity of the end products

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