Comparison of vermicompost characteristics produced from sewage sludge of wood and paper industry and household solid wastes

Amouei, Abdoliman; Yousefi, Zabihollah; Khosravi, Touba

doi:10.1186/s40201-017-0269-z

Cited by 36 publications

(22 citation statements)

References 14 publications

(22 reference statements)

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“…Vermicompost was collected from an organic farm and prepared by using earthworm Eisenia fetida (Amouei et al, 2017) to compost cow dung and banana plants (80:20, w/w). WA was prepared by burning woods in mud stoves.…”

Section: Collection and Processing Of Amendmentsmentioning

confidence: 99%

Effects of Leaching on the Reclamation of Saline Soils as Affected by Different Organic and Inorganic Amendments

Roy¹,

Chowdhury²

2020

JESSD

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Soil salinity, which poses one of the greatest threats to sustainable crop production worldwide, can be ameliorated through various approaches, such as leaching, mulching, and amendment application. The effects of leaching and amendments on saline soil reclamation have been studied separately, but their interaction is poorly elucidated. Therefore, a column experiment was designed with soils that were subjected to leaching with 2 and 4 pore volume (PV) of water and compared with non-leached soils (NLS) to observe the effects of leaching on saline soil and leachate characteristics under different organic (vermicompost [VC] and wood ash [WA]) and inorganic (zeolite) amendments at two different rates (1 and 2 g 100 g −1 ) and their combinations. Results revealed that the electrical conductivity (EC) of the soil decreased, whereas the EC of the leachate increased as the PV of water increased. Regardless of the treatments, the concentrations of sodium (Na + ), potassium (K + ), calcium (Ca 2+ ), and magnesium (Mg 2+ ) in the leachate increased. By contrast, their concentrations in the leached soils decreased as the PV of water increased. WA contributed to a significant increase (p < 0.01) in the EC and the concentrations of cations, especially K + and Ca 2+ , in the soils and leachates. The higher the rates of the amendment, the greater the increment in the EC and cation concentrations. Incorporating amendments could be important sources of cations, thereby limiting the entry of Na + into the exchange complex and facilitating leaching with percolating water. The response of spinach (Spinacia oleracea) in terms of yield parameters to 2 PV of leached soils was significantly better than that of NLS, suggesting that soil leaching could significantly influence plant functioning in highly saline soils. This study suggested that the irrigation of saline soils under different organic and inorganic amendments before cultivation might affect salt leaching and soil nutrient dynamics, thereby influencing plant growth and yield.

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Section: Collection and Processing Of Amendmentsmentioning

confidence: 99%

Effects of Leaching on the Reclamation of Saline Soils as Affected by Different Organic and Inorganic Amendments

Roy¹,

Chowdhury²

2020

JESSD

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“…For the effects of earthworms on sludge's organic matter, data in Table 2 showed a reduction in the vermicomposted sludge compared to the raw one. This decrease was due to the mineralization and decomposition of organic matter by earthworms-microorganisms combination in the substrate material and the loss of carbon compounds in CO 2 ( Ozdemir et al., 2019 ; Amouei et al., 2017 ).…”

Section: Resultsmentioning

confidence: 99%

The vermicomposting for agricultural valorization of sludge from Algerian wastewater treatment plant: impact on growth of snap bean Phaseolus vulgaris L.

Belmeskine

Ouameur

Dilmi

et al. 2020

Heliyon

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In the present study, vermicomposting of sewage sludges and their application in agriculture have been investigated. The impact of Eisenia fetida earthworms on the stabilization of these sludges during 7, 14 and 21 days was assessed. The final product was applied as soil amendment (set-1) to evaluate the effects on vegetative parameters (Chlorophyll, carotenoid, number of nodules, leaf weight, and plant height) of Phaseolus vulgaris.L bean. In the second test (set-2), the amendment was made with raw sludge. In the third test (set-3), the worms were added to the raw sludge at the time of spreading and left during the whole period of beans growth. In order to identify and better understand the behavior and role of worms with regard to sludge, their growth (weight and length), some pathogens and physico-chemical parameters were assessed during the vermicomposting. Results showed significant increase of earthworm weight of 10.62, 23.89 and 35.72 % after 7, 14 and 21 days of sludge vermicomposting, respectively, which explain their acclimatization . The vermicomposting caused a decrease of feacal coliforms number and organic matter (OM), an increase in electrical conductivity (EC) and stabilization in pH. Furthermore, significant differences were obtained for all plants vegetative parameters in soil amended with vermicomposts, compared to the control (unamended soil). Indeed, a significant increase of the chlorophyll level (a, b) was noted in the beans having undergone sludge spreading. However, worm-stabilized sludge for 7 days (set-1) showed the highest chlorophyll a and b levels about 16.1 and 24.64 μg/g, respectively, against 10.13 and 4.38 μg/g in the control. For the carotenoid, a significant decrease was observed compared to the control. Our experiments have also showed that the application of vermicomposted sludge significantly increases the number of nodules, leaf weight and plant height of Phaseolus Vulgaris L . snap beans .

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“…In the final stages, the activity of micro-organisms affecting the decomposition increased during the process of aerobic metabolism and in the presence of sufficient moisture which results in the production of alkaline products. At this stage, pH has been fixed and in some piles a little decreased which could be attributed to the production of CO 2 due to the metabolic activities of earthworms and micro-organisms in vermicomposting pits and ASP (Amouei et al 2017). The results of temperatures and the C/N ratio during the composting process as the comparison between different compositions (odd and even piles) in both ASP and vermicomposting are provided in Figs.…”

Section: Statistical Analysis Of the Measured Datamentioning

confidence: 98%

Comparison between aerated static piles and vermicomposting in producing co-compost from rural organic wastes and cow manure

Abdoli

Omrani

Safa

et al. 2017

Int. J. Environ. Sci. Technol.

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In this study, the process of producing compost from rural separated solid wastes using aerated static piles (ASP) and vermicomposting was investigated which was carried out from September 2015 to January 2016. A combination of waste ingredients, conditions, processing duration, analysis of key parameters (moisture, pH, temperature and C/N ratio) governing the process, the quality of the final product and economic assessment was considered. Six piles were created in the ASP method, and six piles were loaded in vermicomposting pits in which the Eisenia foetida species was used. Three piles in each method (odd piles) contained 100% putrescible wastes, while the rest of three piles (even piles) contained 75% putrescible wastes and 25% cow dung. The total coliform reductions in both kinds of waste compositions were observed. Heavy metals such as lead, cadmium and nickel were not found in any of the piles. Comprehensive statistical analysis, including the comparison of the variables, correlation among variables and analysis of variance, was performed for the measured parameters. Comparing the final product with standards showed that composting proceeded satisfactorily in both methods.

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Comparison of vermicompost characteristics produced from sewage sludge of wood and paper industry and household solid wastes

Cited by 36 publications

References 14 publications

Effects of Leaching on the Reclamation of Saline Soils as Affected by Different Organic and Inorganic Amendments

Effects of Leaching on the Reclamation of Saline Soils as Affected by Different Organic and Inorganic Amendments

The vermicomposting for agricultural valorization of sludge from Algerian wastewater treatment plant: impact on growth of snap bean Phaseolus vulgaris L.

Comparison between aerated static piles and vermicomposting in producing co-compost from rural organic wastes and cow manure

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