Characterization of Dissolved Organic Matter in an Agricultural Wastewater-Irrigated Soil, in Semi Arid Mexico

Fuentes-Rivas, Rosa María; León, Germán Santacruz de; Ramos-Leal, José Alfredo; Morán-Ramírez, Janete; Romero, Francisco Martín

doi:10.20937/rica.2017.33.04.03

Cited by 11 publications

(15 citation statements)

References 56 publications

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“…Because fulvic acids are more mobile than humic acids, it is logical to find them throughout the soil profile (Figure 4). These acids can predominate in natural waters and have a high degree of anionic charge, which favors the formation of stable complexes with cations such as chromium [15,20,21]. It is worth noting the amount of chromium accumulated in the soil profile ( Table 6); the greatest accumulation of chromium was observed in the first 10 cm of the column, where there was a greater presence of organic matter and where peak F was observed.…”

Section: D-fluorescence Of Dissolved Organic Matter In the Soil Solumentioning

confidence: 99%

“…The 3D fluorescence analysis was performed [15][16][17]. A Perkin Elmer fluorescence spectrophotometer LS55 was used, with 150 watts xenon lamp as excitation source.…”

Section: Fluorescence Spectroscopy and X-ray Diffractionmentioning

confidence: 99%

“…In the characterization of the samples, 45 individual emission spectra were obtained at emission wavelengths (λem) between 250 and 600 nm with intervals of 5 nm and, collected at excitation wavelengths (λexc) between 200 and 450 nm. The samples were analyzed at a concentration < 2 mg/L COD [15,17]. A 290 nm filter was used in all analyses to eliminate Raleigh peak light interference.…”

Section: Fluorescence Spectroscopy and X-ray Diffractionmentioning

confidence: 99%

“…As mentioned before, the chromium accumulated in the soil profile may combine with two types of natural organic matter, humic and fulvic acids. The fluorescence spectra showed the evolution of humic substances [15,17]. In the first 20 cm of the soil profile, the fluorescence intensity of humic acids is high (158 at 10 cm and 255 at 20 cm), but decreases with increasing depth by up to 87%.…”

Section: D-fluorescence Of Dissolved Organic Matter In the Soil Solumentioning

confidence: 99%

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Chromium Species and 3D-Fluorescence Spectroscopy in a Soil Irrigated with Industrial Wastewater

Fuentes-Rivas¹,

Martín-Romero²,

García-Pulido³

et al. 2018

Agricultural Waste and Residues

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Irrigation of agricultural land with wastewater is beneficial because it incorporates organic matter into the soil, as well as organic ions (such as nitrates, sulfates, and phosphates). However, long-term application causes negative effects such as the accumulation of heavy metals. The wastewater used in the agricultural soils, also incorporates organic refractory compounds, which affect the microbial population and fertility. This chapter aimed to identify the chromium species present in agricultural soil irrigated with wastewater (679.6 mg/L for total chromium and 559.5 mg/L for Cr VI), and characterize the dissolved organic matter in the saturated solution soil. In the soil-saturated solutions (pH 6), the most stable Cr (III) species was Cr 2 O 3 . These species precipitate and accumulate in the soil in combination with natural organic matter. The highest accumulation of chromium occurred in the first 10 cm of the soil column. The 3D fluorescence analysis exposes the presence of aromatic proteins, microbiological degradation products, and humic and fulvic acids in the soil profile. The excitation-emission matrix (EEM) showed that Cr (VI) species were complexed with humic acids. In the X-ray diffraction analysis, the species Cr 2 O 5 , Cr 5 O 12 , CrO 2 , and Cr 7 C 3 were found at depth with the greatest amount of organic matter.

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Section: D-fluorescence Of Dissolved Organic Matter In the Soil Solumentioning

confidence: 99%

“…The 3D fluorescence analysis was performed [15][16][17]. A Perkin Elmer fluorescence spectrophotometer LS55 was used, with 150 watts xenon lamp as excitation source.…”

Section: Fluorescence Spectroscopy and X-ray Diffractionmentioning

confidence: 99%

Section: Fluorescence Spectroscopy and X-ray Diffractionmentioning

confidence: 99%

Section: D-fluorescence Of Dissolved Organic Matter In the Soil Solumentioning

confidence: 99%

See 2 more Smart Citations

Chromium Species and 3D-Fluorescence Spectroscopy in a Soil Irrigated with Industrial Wastewater

Fuentes-Rivas¹,

Martín-Romero²,

García-Pulido³

et al. 2018

Agricultural Waste and Residues

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“…Many authors agree that wastewater is an important source of organic matter (Fuentes-Rivas et al, 2017) and nutrients such as nitrogen (N) and phosphorus (P) [Belaid et al, 2012], and applying this water to agricultural irrigation will provide a considerable amount of nutrients for crop nutrition (Romero-Álvarez, 1997;Rascón-Alvarado et al, 2008;Zamora et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Nitrate, phosphate and boron content in wastewater for crop irrigation in Mezquital Valley, Hidalgo

Díaz

Ortega-Escobar

Ayala

et al. 2018

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Introduction: Mexico City generates an approximate volume of wastewater of 57 m3 s-1, the wastewater is conduct by the drainage network: main channel-west interceptor-central emitter, and conducted to Hidalgo State, during it course, an important volume is poured into irrigation channels and is used for crop irrigation in the Mezquital Valley.Method: in this study, nitrate (NO3-), phosphate (PO4-3) boron (B3+) and chloride (Cl-) content in 188 wastewater samples was determined. The objective was to assessment the risk of toxicity by specific ions (B3+ and Cl-) and the nutrients content (N, P, K, Ca y Mg) in wastewater used for crop irrigation.Results: the nitrate (NO3-) concentration was very heterogeneous (CV=59.83 %) and this was attributed to the lixiviation of nitrogen fertilizers. The maximum phosphate (PO4-3) value was 65.7 mg L-1, and its concentration was attributed to the discharge of household wastewater. The boron concentration (B3+) was less than 1.88 mg L-1. The risk of toxicity due to the use of wastewater in irrigation may cause a decrease the yield of sensitive crops, such as beans.Conclusion: untreated wastewater used in irrigation in Mezquital Valley, may cause toxicity problems in some crops; the nitrate and phosphate concentrations in wastewater of the Mexico City-Mezquital Valley drainage network were high, and these were attributed to the discharges of domestic and industrial wastewaters and to agricultural drainage, high concentrations of nitrate and phosphate represent a risk for aquatic organisms due to pollution and the possible eutrophication of water bodies. The risk of toxicity by B3+ and Cl-can have a negative effect on the germination and yield of bean crops.

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Impact of urban sewage sludge on soil physico‐chemical properties and phytotoxicity as influenced by soil texture and reuse conditions

et al. 2020

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Urban sewage sludge (USS) is increasingly applied to agricultural soils, but mixed results have been reported because of variations in reuse conditions. Most field trials have been conducted in cropping systems, which conceal intrinsic soil responses to sludge amendments due to the rhizosphere effect and farming practices. Therefore, the current field study highlights long‐term changes in bare soil properties in strict relationship with soil texture and USS dose. Two agricultural soils (loamy sand [LS] and sandy [S]) were amended annually with increasing sludge rates up to 120 t ha−1 yr−1 for 5 yr under unvegetated conditions. Outcomes showed a USS dose‐dependent variation of all studied parameters in topsoil samples. Soil salinization was the most significant risk related to excessive USS doses. Total dissolved salts (TDS) in saturated paste extracts reached the highest concentrations of 37.2 and 43.1 g L−1 in S soil and LS soil, respectively, treated with 120 t USS ha−1 yr−1. This was also reflected by electrical conductivity of the saturated paste extract (ECe) exceeding 4,000 µS cm−1 in both treatments. As observed for TDS, fertility indicators and bioavailable metals varied with soil texture due to the greater retention capacity of LS soil owing to higher fine fraction content. Soil phytotoxicity was estimated by the seed germination index (GI) calculated for lettuce, alfalfa, oat, and durum wheat. The GI was species dependent, indicating different degrees of sensitivity or tolerance to increasing USS rates. Lettuce germination was significantly affected by changes in soil conditions showing negative correlations with ECe and soluble metals. In contrast, treatment with USS enhanced the GI of wheat, reflecting higher salinity tolerance and a positive effect of sludge on abiotic conditions that control germination in soil. Therefore, the choice of adapted plant species is the key factor for successful cropping trials in sludge‐amended soils.

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Characterization of Dissolved Organic Matter in an Agricultural Wastewater-Irrigated Soil, in Semi Arid Mexico

Cited by 11 publications

References 56 publications

Chromium Species and 3D-Fluorescence Spectroscopy in a Soil Irrigated with Industrial Wastewater

Chromium Species and 3D-Fluorescence Spectroscopy in a Soil Irrigated with Industrial Wastewater

Nitrate, phosphate and boron content in wastewater for crop irrigation in Mezquital Valley, Hidalgo

Impact of urban sewage sludge on soil physico‐chemical properties and phytotoxicity as influenced by soil texture and reuse conditions

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