Co-composting of biowaste and wood ash, influence on a microbially driven-process

Juárez, Marina Fernández-Delgado; Prähauser, Barbara; Walter, Andreas; Insam, Heribert; Franke‐Whittle, Ingrid H.

doi:10.1016/j.wasman.2015.09.015

Cited by 53 publications

(15 citation statements)

References 39 publications

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“…Other works used 12% ash in a mixture with compost and found no adverse effects to the plants [7]. Other researchers have also shown that up to 15% use of biofuel ash had no negative impact [6].…”

Section: Introductionmentioning

confidence: 94%

“…The BA and GWC used, with their corresponding nomenclature, is shown in Table 1. Based on previous experiments with an ash content of up to 15% [6] and 16% [16] in the mixture, mixtures of 7%, 13%, and 18% of BA by weight were used. The application rates were 20 t ha −1 GWC + 1.5 t ha −1 BA, 20 t ha −1 GWC + 3.0 t ha −1 , and 20 t ha −1 GWC + 4.5 t ha −1 , respectively.…”

Section: Ba and Gwc Mixtures For Compostingmentioning

confidence: 99%

“…Different guidelines for mixing compost with ash apply in different countries. In Austria, ≤2% biofuel ash can be added to the compost mix and no limits apply in Germany [5,6]. Other works used 12% ash in a mixture with compost and found no adverse effects to the plants [7].…”

Section: Introductionmentioning

confidence: 99%

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A Mixture of Green Waste Compost and Biomass Combustion Ash for Recycled Nutrient Delivery to Soil

et al. 2021

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The use of major nutrient-containing solid residuals, such as recycled solid waste materials, has a strong potential in closing the broken nutrient cycles. In this work, biofuel ash (BA) combined with green waste compost (GWC) was used as a nutrient source to improve soil properties and enhance wheat and triticale yields. The main goal was to obtain the nutrient and heavy metal release dynamics and ascertain whether GWC together with BA can potentially be used for concurrent bioremediation to mitigate any negative solid waste effects on the environment. Both BA and GWC were applied in the first year of study. No fertilization was performed in the second year of the study. The results obtained in this work showed the highest spring wheat yield when the GWC (20 t ha−1) and BA (4.5 t ha−1) mixture was used. After the first harvest, the increase in the mobile forms of all measured nutrients was detected in the soil with complex composted materials (GWC + BA). The content of heavy metals (Cd, Zn, and Cr) in the soil increased significantly with BA and all GWC + BA mixtures. In both experiment years, the application of BA together with GWC resulted in fewer heavy metals transferred to the crops than with BA alone.

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Section: Introductionmentioning

confidence: 94%

Section: Ba and Gwc Mixtures For Compostingmentioning

confidence: 99%

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A Mixture of Green Waste Compost and Biomass Combustion Ash for Recycled Nutrient Delivery to Soil

et al. 2021

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“…Therefore, the reuse of ash has gained an increased interest. Depending on the composition and geographical region, ash has been used in agriculture (soil amendment), as forest soil amendment, to control the odor and pH of some wastes, to remove pollutants from water and to produce ceramics and building materials (cement base and road base material) [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

A Sustainable Solution to Obtain P-K-Mn Glass Fertilizers from Cheap and Readily Available Wastes

Vancea

Moșoarcă

Popa

2021

IJERPH

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The sustainable economy framework imposes the adoption of new ways for waste reuse and recycling. In this context, this paper proposes a new alternative to obtain glass fertilizers (agriglasses) by reusing two cheap and easily available wastes, wood ash and manganese rich sludge resulting from drinking water treatment processes for groundwater sources. Glasses were obtained using different amounts of wastes together with (NH4)2HPO4 and K2CO3 as raw materials. The P-K-Mn nutrient solubilization from the obtained glasses was investigated using a citric acid solution. The kinetics of the leaching process was studied after 1, 7, 14, 21 and 28 days, respectively. The intraparticle diffusion model was used to interpret kinetic data. Two distinct stages of the ion leaching process were recorded for all of the studied compositions: first through intraparticle diffusion (the rate-controlling stage) and second through diffusion through the particle–medium interface. The fertilization effect of the obtained agriglasses was studied on a barley crop. The specific plant growth parameters of germination percentage, average plant height, biomass and relative growth rate were determinate. The positive impact of the agriglasses upon the plants biomass and relative growth rate was highlighted. The effects of agriglasses can be tuned through glass compositions that affect the solubility of the nutrients.

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“…In these conditions, recycling and reuse of wood ashes are essential from an economical and environmental perspective. Physical and chemical properties are important in determining the possible reuse of this material for different applications: soil supplement, construction materials, odor and pH control of hazardous and non‐hazardous wastes . Another promising application is the use as adsorbent for the removal of various pollutants from wastewater …”

Section: Introductionmentioning

confidence: 99%

A green approach for treatment of wastewater with manganese using wood ash

Moșoarcă

Vancea

Popa

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND: In the circular economy context, the present article proposes a green technical solution by manganese ions adsorption on oak wood ash and the reuse of the new waste generated by the adsorption process as soil amendment. RESULTS:The influence of the main process variables: pH, adsorbent dose and contact time was investigated for optimal manganese ions adsorption. The highest adsorption efficiency of the wood ash (more than 98%) was recorded at pH 6, adsorbent dose of 10 g L −1 and contact time 15 min. The ion adsorption process is best described by Langmuir isotherm and pseudo second-order kinetic model. Maximum adsorption capacity, 54.94 mg g −1 , is better than other adsorbent materials previously used for manganese adsorption. The exhausted wood ash, resulted after the manganese adsorption was used as soil amendment for barley crop, Hordeum vulgare L. The beneficial effect upon the studied plants was highlighted using the specific parameters: germination percent (up to 10% higher), plant average length (higher by 14-35%), biomass (up to 200%) and relative growth rate (higher by 6-12%) compared to those obtained for the control sample.CONCLUSION: These results show that all the wastes involved have been used successfully and support the proposed ecofriendly technical solution for some industrial wastes management.

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Co-composting of biowaste and wood ash, influence on a microbially driven-process

Cited by 53 publications

References 39 publications

A Mixture of Green Waste Compost and Biomass Combustion Ash for Recycled Nutrient Delivery to Soil

A Mixture of Green Waste Compost and Biomass Combustion Ash for Recycled Nutrient Delivery to Soil

A Sustainable Solution to Obtain P-K-Mn Glass Fertilizers from Cheap and Readily Available Wastes

A green approach for treatment of wastewater with manganese using wood ash

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