Evaluating the potential use of a dairy industry residue to induce denitrification in polluted water bodies: A flow-through experiment

Margalef-Marti, Rosanna; Carrey, Raúl; Soler, Albert; Otero, Neus

doi:10.1016/j.jenvman.2019.03.086

Cited by 15 publications

(17 citation statements)

References 60 publications

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“…Less enriched signatures of δ 15 N-NO 3 − and δ 18 O-NO 3 − at 10°C, emphasize the differences in denitrification for both temperatures and illustrate that less denitrification occurs with acetate at 10°C. Furthermore, ε 15 N/ε 18 O values from 1.06 to 1.92 are in agreement with published data for induced biodenitrification, where in laboratory experiments values close to 1 (Carrey et al, 2013;Margalef-Marti et al, 2019) and on the field-scale values close to 2 are obtained (Critchley et al, 2014; Otero Despite successfully initiated denitrification, results show different NO 3 − degradation efficiencies of the C compounds. At first glance, glucose seems to be the best choice for enhanced NO 3 − degradation.…”

Section: Discussionsupporting

confidence: 91%

Comparison of Denitrification Induced by Various Organic Substances—Reaction Rates, Microbiology, and Temperature Effect

Ortmeyer

Begerow

Guerreiro

et al. 2021

Water Resources Research

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Nitrate pollution of water resources is a global problem (Almasri, 2007). In some regions, the guideline values of groundwater and drinking water regulations are considerably exceeded in surface waters, but also in groundwater (Carrey et al., 2014). Several European Union member states, including Germany, were penalized by the European Court of Justice for non-compliance with the Nitrate Directive (European Court of Justice, 2010Justice, , 2018. However, further infringements and sanctions are to be expected. This contamination results mainly from anthropogenic N fertilizers used to increase agricultural productivity (Hosono et al., 2013). Excess N enters groundwater as NO 3 − . Due to a geogenic NO 3 − degradation capacity of most aquifers (sulfide minerals and organic C), part of the NO 3 − can be degraded (Rivett et al., 2008). Based on sulfide-S and organic C contents of the aquifer, groundwater recharge and NO 3 − concentration, the remaining time until a NO 3 − breakthrough to drinking water production wells may be calculated (e.g., Ortmeyer, Volkova, et al., 2021). Overall, a link between hydrologic and water quality models is important because including transit times can improve understanding of NO 3 − transport in aquifers (Hrachowitz et al., 2016). In the future, considerable increases in NO 3 − concentrations and NO 3 − breakthroughs to raw water wells are expected, as this degradation capacity is decreasing and finite (Knowles, 1982;Schwientek et al., 2017). Climate change is expected to enhance this deterioration of water resource quality and quantity (Fleck et al., 2017;Ortmeyer, Mas-Pla, et al., 2021). In addition to a decrease in groundwater recharge and a drop in water levels, Stuart et al. (2011) point to possible increasing rates of NO 3 − leaching under future climate scenarios. The thickness of the unsaturated zone is crucial for reaching NO 3 − peaks at the groundwater table (Wang et al., 2012). Nitrate storage in the vadose zone is also important, but often not considered in

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Section: Discussionsupporting

confidence: 91%

Comparison of Denitrification Induced by Various Organic Substances—Reaction Rates, Microbiology, and Temperature Effect

Ortmeyer

Begerow

Guerreiro

et al. 2021

Water Resources Research

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“…Therefore, it was decided to evaluate the feasibility of adding an external electron donor source to promote NO3attenuation when operating at a ~16 L/s flow rate. experiments and other denitrification studies (Carrey et al, 2014;Margalef-Marti et al, 2019;Vidal-Gavilan et al, 2013). The maximum NH4 + concentration of 0.02 mM was measured at H3 after 7 d, while it decreased by the outlet (H6) to 0.01 mM in both campaigns, pointing to a nonsignificant contribution of DNRA.…”

Section: Performance Of the Cw Before Application Of Stubblementioning

confidence: 70%

“…Since the use of pure reagents such as glucose, acetate, or ethanol may be expensive in long-term treatments, the use of industrial or agricultural residues that are rich in organic C could represent a more sustainable solution. Solid products such as animal or vegetal waste (Grau-Martínez et al, 2017;Si et al, 2018;Trois et al, 2010), as well as industrial liquid by-products (Carrey et al, 2018;Margalef-Marti et al, 2019), have already been reported as being useful for promoting denitrification.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of using rural waste products to increase the denitrification efficiency in a surface flow constructed wetland

Margalef-Marti

Carrey

Merchán

et al. 2019

Journal of Hydrology

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A surface flow constructed wetland (CW) was set in the Lerma gully to decrease nitrate (NO3 -) pollution from agricultural runoff water. The water flow rate and NO3concentration were monitored at the inlet and the outlet, and sampling campaigns were performed which consisted of collecting six water samples along the CW flow line. After two years of operation, the NO3attenuation was limited at a flow rate of ~2.5 L/s and became negligible at ~5.5 L/s. The present work aimed to assess the feasibility of using rural waste products (wheat hay, corn stubble, and animal compost) to induce denitrification in the CW, to assess the effect of temperature on this process, and to trace the efficiency of the treatment by using isotopic tools. In the first stage, microcosm experiments were performed. Afterwards, the selected waste material was applied in the CW, and the treatment efficiency was evaluated by means of a chemical and isotopic characterization and using the isotopic fractionation (ε) values calculated from laboratory experiments to avoid field-scale interference. The microcosms results showed that the stubble was the most appropriate material for application in the CW, but the denitrification rate was found to decrease with temperature. In the CW, biostimulation in autumn-winter promoted NO3attenuation between two weeks and one month (a reduction in NO3between 1.2 and 1.5 mM was achieved). After the biostimulation in spring-summer, the attenuation was maintained for approximately three months (NO3reduction between 0.1 and 1.5 mM). The ε 15 NNO3/N2 and ε 18 ONO3/N2 values obtained from the laboratory experiments allowed to estimate the induced denitrification percentage. At an approximate average flow rate of 16 L/s, at least 60 % of NO3attenuation was achieved in the CW. The field samples exhibited a slope of 1.0 for δ 18 O-NO3versus δ 15 N-NO3 -, similar to those of the laboratory experiments (0.9-1.2). Plant uptake seemed to play a minor role in NO3attenuation in the CW. Hence, the application of stubble in the CW allowed the removal of large amounts of NO3from the Lerma gully, especially when applied during the warm months, but its efficacy was limited to a short time period (up to three months).

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“…The environmental pollution is a global problem with a strong impact on the human health [1] and food security [2]. One of the major issues is the water pollution [3,4] by residual industrial liquids (RILs). Thus, a wide range of methodologies such as adsorption [5,6], biodegradation [4,7], and the so-called advanced oxidation processes (AOPs) [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] have been applied for the treatment of polluted water.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Material Based on an Amorphous-Carbon Matrix and ZnO/Zn for the Solar Photocatalytic Degradation of Basic Blue 41

et al. 2019

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Innovative composites based on an amorphous-carbon matrix containing a second phase ZnO oxide and/or highly dispersed Zn metallic were synthesized via a modified Pechini route, in which a partial pyrolysis method was reached. Studies of adsorption in the dark and the photocatalytic activity for the cationic azo-dye, basic blue 41, and degradation were carried out. X-ray diffraction patterns for the carbon matrix and its composite with Zn show characteristics of the amorphous carbon. The infrared in the mid region of the composite prepared with ZnO and Zn exhibit vibrational bands related to bonds zinc oxide. The surface pH of the material is the main factor responsible for the adsorption of the azo-dye, but the contribution of mesopores favored the diffusion of molecules from the bulk of solution to the pore framework. Esters-like functional groups on the surface of carbons hinder the adsorption of the azo-dye. When Zn is embedded within amorphous carbon the photocatalytic activity of the composites showed up to 2.4 higher than neat ZnO. The enhancement in the photocatalytic activity and stability of C/ZnO/Zn and C/Zn composites is discussed in terms of a protector effect by the carbon layers inserted in composites. Carbon layers are responsible to inhibit the lixiviation of ZnO particles along irradiation.

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Evaluating the potential use of a dairy industry residue to induce denitrification in polluted water bodies: A flow-through experiment

Abstract: Evaluating the potential use of a dairy industry residue to induce denitrification in polluted water bodies: a flow-through experiment.

Cited by 15 publications

References 60 publications

Comparison of Denitrification Induced by Various Organic Substances—Reaction Rates, Microbiology, and Temperature Effect

Comparison of Denitrification Induced by Various Organic Substances—Reaction Rates, Microbiology, and Temperature Effect

Feasibility of using rural waste products to increase the denitrification efficiency in a surface flow constructed wetland

Hybrid Material Based on an Amorphous-Carbon Matrix and ZnO/Zn for the Solar Photocatalytic Degradation of Basic Blue 41

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