Evolution of organic matter during the mesophilic composting of lignocellulosic winery wastes

Paradelo, Remigio; Moldes, Ana Belén; Barral, María Teresa

doi:10.1016/j.jenvman.2012.12.001

Cited by 122 publications

(74 citation statements)

References 40 publications

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“…This can be associated to the fact that the pruning of trees has complexes structure such as lignin, hemicellulose, cellulose and waxes hard broken by microorganisms, which requires greater composting time (Paradelo, Moldes, & Barral, 2012).…”

Section: Mass and Volume Reductionmentioning

confidence: 99%

<b>Treatment of organic solid waste generated at agricultural research corporation via composting under natural and controlled conditions

et al. 2018

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ABSTRACT. The study of composting technique becomes relevant to management of organic waste generated in an undertaking agricultural research. Therefore, this paper aimed to evaluate the efficiency of stabilization of organic matter in two composting systems: controlled (plowings and irrigations fortnightly) and natural. It has been tested two piles (controlled and natural) during 120 days in four treatments: soy straw (T1), wheat straw (T2), tree pruning (T3), mixture of soy and wheat straw and tree pruning (T4) with organic residues from the recycling program + soybeans. There was monitoring of temperature, moisture, pH, electrical conductivity (EC), C, N, C/N ratio and reduction of mass and volume. In the controlled treatments, the thermophilic phase was lower, the moisture was in the ideal ratio for the process (with lower values in the natural treatments), and there was a decrease of 3-4 times of the values of EC and the higher reductions of mass and volume. In all treatments, the values of pH were neutral and the C/N ratio declined 37-50%, assuming final values of matured composts. It has been concluded that regardless of mixtures of waste, the controlled treatments, in the period of 120 days, were more efficient in stabilize the organic material.Keywords: organic residues from the recycling program, soybeans, wheat straw, soybean straw, pruning trees.Tratamento de resíduos sólidos orgânicos gerados em instituto de pesquisa agropecuária via compostagem em condições natural e controlada RESUMO. O estudo da técnica de compostagem se torna relevante para gestão dos resíduos orgânicos gerados em um empreendimento de pesquisa agropecuária. Sendo assim, este trabalho objetivou avaliar a eficiência da estabilização da matéria orgânica em dois sistemas de compostagem: controlado (revolvimentos e irrigação quinzenalmente) e natural. Foram testadas duas leiras (controlada e natural) durante 120 dias em quatro tratamentos: palha de soja (T1), palha de trigo (T2), poda de árvore (T3) mistura de palhas de soja e trigo com poda de árvore (T4) com resíduos orgânicos da coleta seletiva + grãos de soja. Monitorou-se temperatura, umidade, pH, condutividade elétrica (CE), C, N, relação C/N e redução de massa e volume. Nos tratamentos controlados a fase termófila foi menor, a umidade esteve na faixa ideal para o processo (valores abaixo nos naturais), houve diminuição de três a quatro vezes dos valores de CE e as maiores reduções de massa e volume. Em todos os tratamentos os valores de pH foram neutros e houve redução de 37 a 50% da relação C/N, assumindo valores finais de compostos maturados. Conclui-se que, independente da mistura de resíduos, os tratamentos controlados no período de 120 dias, foram mais eficientes em estabilizar a matéria orgânica.Palavras-chave: resíduos orgânicos da coleta seletiva, grãos de soja, palha de trigo, palha de soja, poda de árvores.

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Section: Mass and Volume Reductionmentioning

confidence: 99%

<b>Treatment of organic solid waste generated at agricultural research corporation via composting under natural and controlled conditions

et al. 2018

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“…using these residues as a soil amendment, production of phenolic compounds with antioxidant activity, culture media processing to produce lactic acid and biosurfactants and inexpensive as adsorbent for heavy metals is proposed. Lignocellulosic wastes can be used for composting process other wastes, presenting some advantages, such as ease of separate compared to other raw materials collection, technology is simpler, without producing odors, low concentrations of other pollutants and they have good physical properties [19]. A modification of soil with little stabilized compost can adversely affect the environment and crops, so it is important to assess compostability, which is determined during the composting process by the degree of decomposition of organic matter.…”

Section: Principle Applications On the Reuse Of Agricola Wastes In Namentioning

confidence: 99%

Recycling and Elimination of Wastes obtained from Agriculture by using Nanotechnology: Nanosensors

et al. 2017

IJBSBE

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“…Organic carbon content (OC) was calculated from OM by multiplying by the factor 0.58. Watersoluble OC was determined using a TOC analyser (Simadzu TOC-VCSCH) after water extraction following the procedure indicated by Paradelo et al (2013).…”

Section: 4compost Chemical Analysis and Maturity Testsmentioning

confidence: 99%

“…In those composts, the C/N ratio decreased sharply from 47 to 21 and from 45 to 22 during the 83-day period. Paradelo et al (2013) found that most changes in waste characteristics took place within the first two to three months of winery wastes composting. These authors indicated low degradability and potential difficulties for composting lignocellulosic wastes, due to their high C/N ratio and lignin content.…”

Section: 3organic Matter Degradationmentioning

confidence: 99%

Evaluation of composition and performance of composts derived from guacamole production residues

González-Fernández

Galea

Álvarez³

et al. 2015

Journal of Environmental Management

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The utilization of organic wastes to improve soils or for growth media components in local farms and nurseries can reduce the environmental pollution linked to waste disposal while increasing the sustainability of crop production. This approach could be applied to waste products generated from the production 2 of guacamole (an emerging activity in the avocado production areas in mainland Spain), where appropriate treatment of this oily and doughy waste product has not been previously reported. The aim of this work is to study the feasibility of cocomposting guacamole production residues (GR) with garden pruning waste (PW) as bulking agent, and the possible use of the compost produced depending on its quality. A windrow composting trial using three GR:PW ratios, 2:1, 1:2, and 1:7 was carried out. Temperature, moisture, organic matter, and C/N ratio were used to follow the evolution of the composting process during 7 months. After an additional 3-month curing period, composts were sieved to less than 10 mm and a set of European quality criteria was used to assess compost quality and intended use. In general, the 3 composting mixtures followed the classical process evolution, with minor differences among them. The 1:2 GR:PW ratio appeared most adequate for combining better process evolution and maximum GR ratio.Except for their high pH that limits their use as growing media component in some particular cases, the obtained composts fulfilled the more stringent European standards for commercial composts. Self-heating tests confirmed the high stability of the composts produced. The germination of cress by the direct contact method was satisfactory for composts GR:PW 1:2 and 1:7, showing no signs of toxicity. Avocado seedlings planted in substrates containing 67% of the GR:PW composts exhibited greater plant growth than those in the control treatment, and with no signs of phytotoxicity. The results open an interesting opportunity for the sustainable treatment of avocado fruit by-products derived from guacamole and avocado oil processing.

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Evolution of organic matter during the mesophilic composting of lignocellulosic winery wastes

Cited by 122 publications

References 40 publications

<b>Treatment of organic solid waste generated at agricultural research corporation via composting under natural and controlled conditions

<b>Treatment of organic solid waste generated at agricultural research corporation via composting under natural and controlled conditions

Recycling and Elimination of Wastes obtained from Agriculture by using Nanotechnology: Nanosensors

Evaluation of composition and performance of composts derived from guacamole production residues

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