Influence of irrigation with lagooned urban wastewater on chemical and microbiological soil parameters in a citrus orchard under Mediterranean condition

Meli, S; Porto, Maurizio; Belligno, A.; Bufo, Sabino Aurelio; Mazzatura, Angelo; Scopa, Antonio

doi:10.1016/s0048-9697(01)00896-8

Cited by 136 publications

(67 citation statements)

References 36 publications

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“…The increase in the activity of some enzymes (e.g. hydrolytic, proteolytic, laccases, cellulases, phosphatase) has been reported in soils irrigated with treated wastewater (Adrover et al, 2012;Alguacil et al, 2012;Chevremont et al, 2013;Elifantz et al, 2011;Frenk et al, 2014;Friedel et al, 2000;Meli et al, 2002;Morugán-Coronado et al, 2013). It is, thus, suggested that wastewater irrigation may stimulate the activity of microorganisms involved in the biochemical balance of elements such as C, N and P. In addition, organic matter may stabilize the enzymes, which remain active in the ex-tracellular medium, independently of the soil microbial (Trasar-Cepeda et al, 2008a).…”

Section: Effects On Microbial Abundance and Activitymentioning

confidence: 94%

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Becerra-Castro

Lopes

Vaz‐Moreira

et al. 2015

Environment International

427

211

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The reuse of treated wastewater, in particular for irrigation, is an increasingly common practice, encouraged by governments and official entities worldwide. Irrigation with wastewater may have implications at two different levels: alter the physicochemical and microbiological properties of the soil and/or introduce and contribute to the accumulation of chemical and biological contaminants in soil. The first may affect soil productivity and fertility; the second may pose serious risks to the human and environmental health. The sustainable wastewater reuse in agriculture should prevent both types of effects, requiring a holistic and integrated risk assessment. In this article we critically review possible effects of irrigation with treated wastewater, with special emphasis on soil microbiota. The maintenance of a rich and diversified autochthonous soil microbiota and the use of treated wastewater with minimal levels of potential soil contaminants are proposed as sine qua non conditions to achieve a sustainable wastewater reuse for irrigation.

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Section: Effects On Microbial Abundance and Activitymentioning

confidence: 94%

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Becerra-Castro

Lopes

Vaz‐Moreira

et al. 2015

Environment International

427

211

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“…There is potential for these nutrients present in recycled water to be used as a fertiliser source when the water is recycled as an irrigation source for agriculture. Soil microorganisms have been observed to have increased metabolic activity when sewage effluent is used for irrigation (Ramirez-Fuetes et al 2002, Meli et al 2002.…”

Section: Environmental Benefits Of Reusing Effluent Watermentioning

confidence: 99%

Reuse of effluent water—benefits and risks

Toze

2006

Agricultural Water Management

571

285

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There is an increasing trend to require more efficient use of water resources, both in urban and rural environments. A major mechanism that can be used to achieve greater efficiencies is the reuse of water that once would have been discarded into the environment after use. The reuse of water for agricultural irrigation is often viewed as a positive means of recycling water due to the potential large volumes of water that can be used. Recycled water can have the advantage of being a constant, reliable water source and reduces the amount of water extracted from the environment. In addition, in some cases treatment requirements may be need to be less than for water used in an urban environment due to less potential human contact. There are concerns and unknowns, however, about the impact of the quality of the recycled water, both on the crop itself and on the end users of the crops. Water quality issues that can create real or perceived problems in agriculture include nutrient and sodium concentrations, heavy metals, and the presence of contaminants such as human and animal pathogens, pharmaceuticals and endocrine disruptors. Social attitudes to the use of crops that have been irrigated with recycled waters and the resulting impact on market value of crops are also a major consideration. This paper will discuss the benefits from using different types of recycled water and outline the current knowledge and opinions relating to risks such as water quality issues. KeywordsWastewater, recycling, soil, contaminants, pathogens, irrigation IntroductionIncreasing efficiencies in crop management and the continuing increases in crop yields has increased demands on water resources for irrigation purposes. Effluents are reused for irrigation purposes in many countries around the world on all of the populated continents (USEPA 1992). A number of these countries have developed guidelines that give quality criteria and advice on how effluents should reused for irrigation purposes. Examples of these guidelines are summarised in the USEPA guidelines for water reuse manual (USEPA 1992).

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“…This seems to suggest that DOM added by wastewater to the soil was not being retained, due to the high sand compositions in sandy-loam and loamy-sand soils, unlike the clay fraction, these do not help retain DOM. While some reports mention that DOM added by wastewater is readily degradable (Fine et al 2002, Meli et al 2002, Saadi et al 2006, others find a SOM increase by a factor of 1.4 in wastewater-irrigated soils with high organic load (Kaushik et al 2005, Álvarez-Bernal et al 2006. Regarding CEC, the total amount of negative charges available on the surface of soil particles was low and varied little in the soil profiles: 15.66 cmol/kg (0-15 cm), 12.54 cmol/kg (15-30 cm) and 13.78 cmol/kg (30-60 cm) in sample MS1, and 14.26 (0-10 cm), 12.29 (10-20 cm), 12.99 (20-30 cm), 12.69 (30-40 cm), 12.44 (40-50 cm) y 12.55 cmol/kg (50-60 cm) in sample MS2 (Fig.…”

Section: Physical and Chemical Characteristics Of The Agricultural Somentioning

confidence: 99%

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

Fuentes-Rivas

León²,

Ramos-Leal

et al. 2017

Rev. Int. Contam. Ambie.

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Most agricultural soils in semi-arid regions present a deficiency of organic matter (SOM). In order to improve this soil, wastewater is used due to its high organic carbon content. The objective of the present work was to characterize the dissolved organic matter in five residual water samples and ten soil samples from the agricultural area of the municipality of San Luis Potosí by 3D fluorescence spectroscopy. The changes in some physical and chemical properties of the soil were also analyzed. The soil samples were collected at different depths to observe the anthropogenic organic matter presence, their retention in the soil profile, their fluorescence intensity changes and their migration into the aquifer. Temperature, electrical conductivity, dissolved oxygen, oxidation-reduction potential and total dissolved solids were determined in situ. The major anions and cations: Na3-, SO4 2-, NO 3-, NO2 -, were analysed in laboratory. The results show the great contribution of organic matter (>2020 mg/L) in the residual water used for irrigation, as well as, the low content of SOM. The physical and chemical results indicate that the high electrical conductivity of the water, represents a risk of salinization for soils, but not of short term sodicity. The 3D fluorescence spectra of the soil profile, shows the presence of humic and fulvic acids, aromatic proteins and products of microbial degradation. The latter observed in that depth where there is a greater percentage of clay.Palabras clave: fluorescencia 3D, proteínas aromáticas, ácidos húmicos, ácidos fúlvicos, contaminación de suelo RESUMEN La mayoría de los suelos agrícolas en regiones semiáridas presentan una deficiencia de materia orgánica (MOS) y para compensarla se recurre al uso de agua residual por R.M. Fuentes Rivas et al. 576 su alto contenido de carbono orgánico. El objetivo del presente trabajo fue caracterizar la materia orgánica disuelta con espectroscopía de fluorescencia 3D, en cinco muestras de agua residual y 10 de suelo de la zona agrícola del municipio de San Luis Potosí. Se analizaron los cambios de algunas propiedades físicas y químicas del suelo y del agua. Las muestras se colectaron a diferentes profundidades para observar la presencia de materia orgánica, su retención a lo largo del perfil de suelo y su migración hacia el acuífero. La temperatura, la conductividad eléctrica, el oxígeno disuelto, el potencial de oxido-reducción y los sólidos totales disueltos se determinaron in situ. En laboratorio fueron analizados los aniones y cationes mayoritarios: Na . Los resultados muestran el gran aporte de materia orgánica del agua residual empleada para el riego, así como, el bajo contenido de MOS. Los resultados físicos y químicos indican que la alta conductividad eléctrica del agua representa un riesgo de salinización para los suelos, pero no de sodicidad a corto plazo. Los espectros de fluorescencia 3D del perfil del suelo evidencian la presencia de ácidos húmicos, acidos fúlvicos, proteínas aromáticas y productos de degradación microbian...

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Influence of irrigation with lagooned urban wastewater on chemical and microbiological soil parameters in a citrus orchard under Mediterranean condition

Cited by 136 publications

References 36 publications

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Reuse of effluent water—benefits and risks

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

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