The Effect of Ash Admixture on Compost Quality and Availability of Nutrients

Dedina, M.; Jarošíková, Alice; Plíva, Petr; Dubský, M.

doi:10.3390/su14031640

Cited by 3 publications

(3 citation statements)

References 18 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This test shows that the SCG300, SCG350, SCG450 and SCG550 samples tested can be applied to the soil after torrefaction. This is in accordance with the work of Hejátková [ 64 ], which states that for the possible use of the investigated sample to soil, a germination index of at least 50% is required. Furthermore, our research shows that biochar produced at a higher temperature of 350–550 °C had fewer phytotoxic effects than biochar produced at the temperature of 250 °C.…”

Section: Resultssupporting

confidence: 89%

See 1 more Smart Citation

Use of Spent Coffee Ground as an Alternative Fuel and Possible Soil Amendment

et al. 2022

View full text Add to dashboard Cite

Spent coffee ground is a massively produced coffee industry waste product whose reusage is beneficial. Proximate and ultimate and stochiometric analysis of torrefied spent coffee ground were performed and results were analyzed and compared with other research and materials. Spent coffee ground is a material with high content of carbon (above 50%) and therefore high calorific value (above 20 MJ·kg−1). Torrefaction improves the properties of the material, raising its calorific value up to 32 MJ·kg−1. Next, the phytotoxicity of the aqueous extract was tested using the cress test. The non-torrefied sample and the sample treated at 250 °C were the most toxic. The sample treated at 250 °C adversely affected the germination of the cress seeds due to residual caffeine, tannins and sulfur release. The sample treated at 350 °C performed best of all the tested samples. The sample treated at 350 °C can be applied to the soil as the germination index was higher than 50% and can be used as an alternative fuel with net calorific value comparable to fossil fuels.

show abstract

Section: Resultssupporting

confidence: 89%

“…A phytotoxicity test on model plant of garden cress ( Lepidium sativum L.) was performed by the department of Botany and Plant Physiology, Czech University of Life Sciences Prague according to [ 64 ] with modification.…”

Section: Methodsmentioning

confidence: 99%

Use of Spent Coffee Ground as an Alternative Fuel and Possible Soil Amendment

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The improvement of heavy metal passivation by BA is very clear in this vermicomposting system (Figure 3). However, the bioavailability or immobility of plant nutrients primarily depend on specific elements, complexation between metals and the dose of BA itself [34]. The immobilization effect of BA on some nutrients such as K was weak due to the ongoing microbial degradations or solubilizing effect of their metabolism products [21].…”

Section: Biomass Ash Properties and Compositionmentioning

confidence: 99%

Role of Vermicomposting Microorganisms in the Conversion of Biomass Ash to Bio-Based Fertilizers

et al. 2023

View full text Add to dashboard Cite

A high pH, low solubility of bound plant nutrients, and negative impacts on microbial communities are common drawbacks of biomass ash (BA) vermicomposting. In this study, nutrient-rich BA mixed with cow manure was tested at three different application rates to obtain final nitrogen (N), phosphorus (P), and potassium (K) contents of 3.5%, 7.0%, and 10.0% for bio-based fertilizers via vermicomposting. The results showed that all BA blends made with cow manure increased fermentation temperatures and allowed successful worm activity during the subsequent vermicomposting phase. The order of indicator enzyme activities in all vermicomposting samples was urease (220 μg NH4 g−1 h−1) > β-glucosidase (95 μg PNP g−1 h−1) > alkaline phosphatase (91 μg PNP g−1 h−1) > arylsulfatase (83 μg PNP g−1 h−1) > acid phosphatase (60 μg PNP g−1 h−1). As an indicator of nutrient bioavailability, high correlations were observed between enzyme activities and microbial diversity in vermicompost samples. Determination coefficients (R2) obtained from multiple linear regressions between enzyme activities and bacterial population for T0, T1, T2, and T3 were determined as 0.90, 0.65, 0.73, and 0.90, respectively. According to a novel metagenome-based approach proposed within the scope of the present study, the stimulatory effects of Flavobacteriales, Burkholderiales, Saccharimonadales, and Pseudomonadales on enzyme activities for the nutrient solubility were found to be significant and positive. The findings of this study demonstrated that worm composting could be a sustainable bio-based technology for the production of slow-release fertilizer from nutrient-rich waste material.

show abstract

Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Sandoval,

Corredor,

Rincón

et al. 2024

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

Municipal biowaste has a high potential for agricultural use. However, it requires an additional amendment to increase the nutritional content used during the composting process. The purpose of this study was to investigate the selection of compost-enhancing amendments from municipal biowaste using bibliometric and multicriteria analysis. The municipality of Yopal (Casanare, Colombia) was chosen as a case study. Using a search equation in the Scopus and Web of Science databases over five years (2018-2022), 53 publications were discovered, from which 25 were chosen for a full review to identify alternatives for amendment. Ashes, rice husks, sawdust, sugarcane bagasse, tree pruning waste, and alfalfa hay were assessed as amendment substitutes. Criteria such as financial cost, accessibility to acquire the amendment, nitrogen, phosphorus, and carbon contribution were used in the analysis of hierarchical processes. Tree pruning waste was the best option based on the criteria chosen because it is easily accessible and contributes with carbon and nitrogen (C/N: 13) to composting. Factors such as cost and affordability influence the physical and chemical characteristics that an amendment brings to the composting of municipal biowaste.

show abstract

The Effect of Ash Admixture on Compost Quality and Availability of Nutrients

Cited by 3 publications

References 18 publications

Use of Spent Coffee Ground as an Alternative Fuel and Possible Soil Amendment

Use of Spent Coffee Ground as an Alternative Fuel and Possible Soil Amendment

Role of Vermicomposting Microorganisms in the Conversion of Biomass Ash to Bio-Based Fertilizers

Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Contact Info

Product

Resources

About