Changes in the chemical and biological characteristics of grape marc vermicompost during a two-year production period

Santana, Natielo Almeida; Jacques, Rodrigo Josemar Seminoti; Antoniolli, Zaida Inês; Martínez-Cordeiro, Hugo; Domínguez, Jorge

doi:10.1016/j.apsoil.2020.103587

Cited by 19 publications

(12 citation statements)

References 46 publications

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“…2B). Cast ageing processes are likely to play a role as vermicomposting progresses, leading to significative changes in the nutrient dynamics and microbiological properties of the earthworms´ egested materials in the later stages of the process [12,16]. In this regard, Nogales et al [23] reported a depletion of hydrolytic enzymes (i.e., ß-glucosidase) during the final stages of a 16-week laboratory vermicomposting trial with different winery feedstocks including exhausted grape marc, probably due to the depletion of readily available organic substrates throughout the process.…”

Section: Nutrient Dynamics and Microbial Activity During Vermicompost...mentioning

confidence: 99%

Recycling and valorization of distilled grape marc through vermicomposting: a pilot-scale study

Gómez-Brandòn

Lores

Domínguez

2023

J Mater Cycles Waste Manag

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The present study sought to evaluate the effectiveness of vermicomposting for the valorization of distilled grape marc, one of the main solid by-products of the winery sector during a 56-day pilot-scale trial. The increase in the density and biomass of earthworms (Eisenia andrei) during the earlier stages of the process reflected the suitability of the distilled marc (Vitis vinifera L. cv. Mencía) as feedstock in order to sustain large earthworm populations on a pilot-scale level. Supporting this, from 14 days onwards the pH of Mencía distilled marc fell within weak-alkaline levels and the electrical conductivity was between 0.21 and 0.11 mS cm−2 providing optimum conditions for earthworm growth. A rapid decrease in microbial activity as well as in the content of total polyphenols, both indicative of stabilized materials was also recorded after 14 days of vermicomposting. Moreover, the content of macro- and micronutrients in the end product matched with those considered to have the quality criteria of a good vermicompost with respect to plant health and safe agricultural use. Altogether, it underlines the feasibility of vermicomposting as an environment-friendly approach for the biological stabilization of distilled grape marc fulfilling both environmental protection and fertilizer production.

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Section: Nutrient Dynamics and Microbial Activity During Vermicompost...mentioning

confidence: 99%

Recycling and valorization of distilled grape marc through vermicomposting: a pilot-scale study

Gómez-Brandòn

Lores

Domínguez

2023

J Mater Cycles Waste Manag

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“…The Gibbs diagram is an analytical method reflecting the factors regulating major ions in water. The method generally divides dominant driving factors into the categories of evaporation and crystallization, rock weathering, and precipitation [44]. The Gibbs diagram applies a logarithmic coordinate system to groundwater hydrochemical components in which the ordinate is the logarithmic coordinate of total TDS in groundwater and the abscissa are the Na + /(Na + + Ca 2+ ) and Cl − /(Cl − + HCO 3 − ) ratios in groundwater, respectively [45].…”

Section: Ionic Ratiomentioning

confidence: 99%

“…The groundwater Mg 2+ /Ca 2+ ratio is 1 when dissolved pure dolomite reaches equilibrium [37,43]. The groundwater Mg 2+ /Ca 2+ ratio is 0.5 when dissolved calcite and dolomite reaches equilibrium (Equation ( 3)) [32,44].…”

Section: Process Of Water-rock Interactionmentioning

confidence: 99%

Seasonal Differences in the Hydrochemical Characteristics of Karst Wetlands and the Associated Mechanisms in Huixian, China

Dan

Luo

et al. 2022

Water

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The present study aimed to identify the seasonal changes in the hydrochemical characteristics of the Huixian karst wetland and the underlying mechanism. Conventional ions and isotopes of 130 groundwater samples collected during the wet and dry seasons were analyzed. The hydrochemical characteristics of groundwater in the Huixian karst wetland were clarified using mathematical statistics and hydrochemical methods, including Durov diagrams, ionic ratios, Gibbs diagrams, and H and O isotopes. The hydrochemical evolution and sources of major ions in the Huixian karst wetland were also investigated. The results showed that cations and anions in groundwater in the study area were dominated by Ca2+ and HCO3−, respectively, sourced mainly from calcite weathering. The ions of some groundwater samples were regulated by weathering of dolomite, dolomitic limestone, and pyrite, resulting in relatively high concentrations of Mg2+ and SO42−. K+, Na+, SO42−, NO3−, and Cl− in groundwater originated from precipitation, Na+ and Cl− originated from domestic sewage, K+ was related to the application of potassium fertilizer in agriculture, and NO3− mainly originated from chemical fertilizer. Groundwater ions were primarily controlled by rock weathering, followed by evaporative concentration. The sources of major ions were dependent on the dissolution and precipitation of carbonate rock, as well as the chemical weathering of silicate rock and evaporite. Samples from the various water sources were scattered on both sides of the local meteoric water line (δD = 3.13δ18O − 13.9), which indicated isotopic composition was affected by evaporation and precipitation.

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“…The chemical composition of karst water is controlled by factors such as geological conditions, hydrodynamic conditions, and human engineering activities in the region, and it can better preserve such influence information [50][51][52][53][54]. Therefore, hydrogeologists often use hydrogeochemical methods to study complex karst water systems [55][56][57][58].…”

Section: Hydrogeochemistrymentioning

confidence: 99%

Using Isotopic and Hydrochemical Indicators to Identify Sources of Sulfate in Karst Groundwater of the Niangziguan Spring Field, China

Tang

Jin

Yongping

2021

Water

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Karst groundwater in the Niangziguan spring fields is the main source to supply domestic and industrial water demands in Yangquan City, China. However, the safety of water supply in this region has recently suffered from deteriorating quality levels. Therefore, identifying pollution sources and causes is crucial for maintaining a reliable water supply. In this study, a systematic sample collection for the karst groundwater in the Niangziguan spring fields was implemented to identify hydrochemical characteristics of the karst groundwater through comprehensive analyses of hydrochemistry (piper diagram, and ion ratios,) and stable isotopes (S and H-O). The results show that the karst groundwater in the Niangziguan spring fields was categorized as SO4·HCO3-Ca·Mg, HCO3·SO4-Ca·Mg, and SO4-Ca types. K+, Cl-, and Na+ are mainly sourced from urban sewage and coal mine drainage. In addition, SO42− was mainly supplied by the dissolution of gypsum and the oxidation of FeS2 in coal-bearing strata. It is noteworthy that, based on H-O and S isotopes, 75% of the karst groundwater was contaminated by acidic water in coal mines at different degrees. In the groundwater of the Niangziguan spring field, the proportions of SO42− derived from FeS2 oxidation were 60.6% (N50, Chengxi spring), 30.3% (N51, Wulong spring), and 26.0% (N52, Four springs mixed with water). Acid mine drainage directly recharges and pollutes karst groundwater through faults or abandoned boreholes, or discharges to rivers, and indirectly pollutes karst groundwater through river infiltration in carbonate exposed areas. The main source of rapid increase of sulfate in karst groundwater is acid water from abandoned coal mines.

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Changes in the chemical and biological characteristics of grape marc vermicompost during a two-year production period

Cited by 19 publications

References 46 publications

Recycling and valorization of distilled grape marc through vermicomposting: a pilot-scale study

Recycling and valorization of distilled grape marc through vermicomposting: a pilot-scale study

Seasonal Differences in the Hydrochemical Characteristics of Karst Wetlands and the Associated Mechanisms in Huixian, China

Using Isotopic and Hydrochemical Indicators to Identify Sources of Sulfate in Karst Groundwater of the Niangziguan Spring Field, China

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