Assessment of Effectiveness of Organo-Mineral Fertilizer Made of Coffee Spent Grounds and Biomass Ash

Ciesielczuk, T.; Rosik-Dulewska, C.; Poluszyńska, J.; Ślęzak, E.

doi:10.12911/22998993/96269

Cited by 4 publications

(5 citation statements)

References 11 publications

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“…Our study confirmed that spent coffee grounds constitute a rich source of carbon compounds and nitrogen 20 , 21 , while chicken and duck eggshells contain lower amounts of carbon and total nitrogen. Carbon and nitrogen in spent coffee grounds occur in different organic compounds 21 , 22 , and the carbon present in chicken and duck eggshells occurs mainly in amino acids 6 and in minerals such as calcium carbonates and magnesium carbonates 23 .…”

Section: Resultssupporting

confidence: 80%

“…Of the studied waste mixtures, mixture SCG-CES I had the highest applicability in agriculture. The pH value of this mixture (SCG-CES I) amounted to 5.96 and was comparable to that of biochar obtained from plant raw materials and spent coffee grounds 36 , 39 and was the most useful in terms of reaction and improvement of soil physicochemical properties 20 .…”

Section: Resultsmentioning

confidence: 60%

“…Spent coffee grounds, despite the high organic matter content, are a rich source of potassium and other macronutrients, which, after mineralisation, are available to plants 4 , 32 . The study by Cruz et al 4 showed that spent coffee grounds contained more nutrients than soil, which indicates that this waste can be used for the production of organic-mineral fertilisers or soil improvers 14 , 20 , 30 .…”

Section: Resultsmentioning

confidence: 99%

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Chemical properties of the coffee grounds and poultry eggshells mixture in terms of soil improver

Tombarkiewicz¹,

Antonkiewicz²,

Lis³

et al. 2022

Sci Rep

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Spent coffee grounds (SCG) as well as chicken (CES) or duck eggshells (DES) left over from the artificial hatching technology are proposed as potential soil improver and/or organic-mineral fertiliser components. Therefore, it seems interesting and necessary to evaluate the chemical composition of these wastes and their mixtures in terms of their possible use for that purpose. The study was conducted under the incubation experiment conditions using a mixture of SCG and eggshells (10:1 ratio). Macronutrients, i.e. C, N, S, were determined by the catalytic combustion method, while P, K, Mg, Ca, Na by atomic spectrometry. It was found that SCG were rich in C, N, P, and K, while eggshells in Ca, Mg, Na, and S. However, CES compared to DES were richer in deacidifying components (i.e. Ca, Mg, K). At the same time, the content of macronutrients in eggshells decreased gradually along with the embryo development. For this reason, the mixture of SCG and shells of unembryonated chicken eggs (CES I) had the best chemical and usable proprieties. To conclude, the chemical properties of the mixtures of spent coffee grounds and eggshells indicate their possible application in soil bioengineering.

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Section: Resultssupporting

confidence: 80%

Section: Resultsmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Chemical properties of the coffee grounds and poultry eggshells mixture in terms of soil improver

Tombarkiewicz¹,

Antonkiewicz²,

Lis³

et al. 2022

Sci Rep

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“…The ashes coming from the mono-incineration plants are not included in the list of wastes that could be used in R10 recovery process. However, SSA can be treated and then used for fertilizer purposes [54,55]. Therefore, in the current study, the samples of SSA were directed to thermochemical treatment.…”

Section: Chemical Composition Of Raw Ssamentioning

confidence: 99%

“…In the previous research, P 2 O 5 content in thermochemically treated ashes was approx. 21.4% [55], 20% [50], 16% [29] and 13-18% [36]. It should be noted that even in single superphosphates (SSP) the P 2 O 5 concentration may vary, depending on the manufacturing process, P concentration in the phosphate rock and other factors.…”

Section: Chemical Composition Of Thermochemically Treated Ssa-secondamentioning

confidence: 99%

Thermochemical Treatment of Sewage Sludge Ash (SSA)—Potential and Perspective in Poland

2020

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Phosphorus (P) recovery from sewage sludge ash (SSA) is one of the most promising approaches of phosphate rock substitution in mineral fertilizers and might be a sustainable way to secure supply of this raw material in the future. In the current investigation, the process of thermochemical treatment of SSA was applied to SSA coming from selected mono-incineration plants of municipal sewage sludge in Poland (Cracow, Gdansk, Gdynia, Lodz, Kielce and Szczecin). The Polish SSA was thermochemically converted in the presence of sodium (Na) additives and a reducing agent (dried sewage sludge) to obtain secondary raw materials for the production of marketable P fertilizers. The process had a positive impact on the bioavailability of phosphorus and reduced the content of heavy metals in the obtained products. The P solubility in neutral ammonium citrate, an indicator of its bioavailability, was significantly raised from 19.7–45.7% in the raw ashes and 76.5–100% in the thermochemically treated SSA. The content of nutrients in the recyclates was in the range of 15.7–19.2% P2O5, 10.8–14.2% CaO, 3.5–5.4% Na2O, 2.6–3.6% MgO and 0.9–1.3% K2O. The produced fertilizer raw materials meet the Polish norms for trace elements covered by the legislation: the content of lead was in the range 10.2–73.1 mg/kg, arsenic 4.8–22.7 mg/kg, cadmium 0.9–2.8 mg/kg and mercury <0.05 mg/kg. Thus, these products could be potentially directly used for fertilizer production. This work also includes an analysis of the possibilities of using ashes for fertilizer purposes in Poland, based on the assumptions indicated in the adopted strategic and planning documents regarding waste management and fertilizer production.

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The use of spent coffee grounds in growing media for the production of Brassica seedlings in nurseries

Chrysargyris

Antoniou

Xylia

et al. 2020

Environ Sci Pollut Res

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Assessment of Effectiveness of Organo-Mineral Fertilizer Made of Coffee Spent Grounds and Biomass Ash

Cited by 4 publications

References 11 publications

Chemical properties of the coffee grounds and poultry eggshells mixture in terms of soil improver

Chemical properties of the coffee grounds and poultry eggshells mixture in terms of soil improver

Thermochemical Treatment of Sewage Sludge Ash (SSA)—Potential and Perspective in Poland

The use of spent coffee grounds in growing media for the production of Brassica seedlings in nurseries

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