Effects of Long-Term Wastewater Irrigation on Soil Properties

Angin, İlker; Yağanoğlu, A. Vahap; Turan, Metin

doi:10.1300/j064v26n03_05

Cited by 88 publications

(57 citation statements)

References 17 publications

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“…Appropriate community structure, with diversity and high variability of microorganisms, is an important factor for sustaining ecosystems and ensuring soil productivity [2,3]. Reclaimed water (RW) contains considerable amounts of inorganic substances, such as heavy metals and salts that may have negative effects on agro-ecosystems [4]; however, it is also enriched in organic matter, nitrogen (N), phosphorus and other nutrients [5]. The well-planned utilization of RW can reduce the need for fertilizer application and improve soil fertility [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Guo

Xiao

et al. 2018

Water

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Reclaimed water (RW) is an alternative water resource that has been utilized all over the world, but its environmental effects are not fully understood. Soil biodiversity is an important indicator of soil tolerance and resilience. In the present study, the impact of RW irrigation on the microbial community diversity and chemical properties of topsoil was investigated by monitoring nitrogen (N) rates. Tomato plants were grown on plots which had been irrigated with reclaimed water for 5 years with varying levels of N fertilization (N270, 270 kg ha −1 ; N216, 216 kg ha −1 ; N189, 189 kg ha −1 ; and N135, 135 kg ha −1 ). Soil bacterial community composition was analyzed by PCR amplification of the 16S rDNA gene and Illumina MiSeq high-throughput sequencing technology of a total of 770,066 quality sequences. The results showed that long-term RW irrigation altered the bacterial composition of soil in an N-dependent manner. RW irrigation increased the abundances of Gemmatimonadetes, Actinobacteria, Firmicutes, and Nitrospirae in soils. The Chao, ACE, and H indices revealed no significant difference under RW irrigation with varying levels of N fertilization. The tomato yield and partial factor productivity from applied N for RN216 increased significantly under RW irrigation with reducing N fertilization. RW irrigation increased the yield of tomato and the abundance of functional microorganisms, which eventually improved the practice of irrigating with reclaimed municipal wastewater. Meanwhile, the potential environmental and health risks of long-term RW irrigation warrant further investigation.

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Section: Introductionmentioning

confidence: 99%

Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Guo

Xiao

et al. 2018

Water

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“…microbial pathogens), while others have longer lasting impacts that increase with continued use of recycled water (e.g., saline effects on soil and heavy metal accumulation). The use of wastewater for irrigation can increase exchangeable sodium on the exchange complex at the expense of exchangeable calcium, magnesium and potassium, producing problems of salinity and sodicity in soil (Angin et al 2005). On the other hand, trace elements which are potentially harmful for human health, such as heavy metals, can be found in treated municipal wastewater effluents.…”

Section: Introductionmentioning

confidence: 99%

Effects of wastewater irrigation on soil properties and turfgrass growth

Castro

Mañas

Heras

2011

Water Science and Technology

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Reuse of treated wastewater for turf irrigation is often viewed as one way to maximize existing urban water resources. The aim of this study is to evaluate the applicability of treated wastewater for turfgrass and assess the effects of continuous use of treated water on the soil and crop. Two turfgrass plots irrigated with drinking water and treated wastewater were monitored over a two-year period. Physical and chemical parameters in the soil and foliar tissue were analyzed. Plants irrigated with treated wastewater had highest sodium content. There were no negative effects with respect to changes in soil pH but a significant increase in electrical conductivity and sodium content was observed in wastewater-irrigated soil. Treated wastewater could be used as a resource for agricultural irrigation since it contributes phosphorus and organic matter. However, it is necessary to consider that several crops could be negatively affected by wastewater irrigation because of the sodium content and this should be taken into account when water-sprinklers are in use, since this is the case in the present study. The benefits of irrigation with treated urban wastewater include contributing plant nutrients to turfgrass while conserving freshwater.

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“…Consequently, management of irrigation with wastewater should consider the nutrient content of the specific crop requirements. Application of wastewater to cropland and forested lands is an attractive option for disposal because it can improve the physicochemical properties of soils (Kiziloglu et al, 2007;Angin et al, 2005). Wastewater irrigation provides water, nitrogen (N) and phosphorus (P) as well as organic matter to the soils (Angin et al, 2005) , but there is a concern about the accumulation of potentially toxic elements such as cadmium (Cd), copper (Cu), iron (Fe), lead (Pb) and zinc (Zn) from both domestic and industrial sources.…”

Section: Introductionmentioning

confidence: 99%

Reducing the leachability of nitrate, phosphorus and heavy metals from soil using waste material

Faridullah

Malik

Fareed

et al. 2017

Braz. J. Chem. Eng.

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-Contaminants like nitrate (NO 3 ), phosphorus (P) and heavy metals in water are often associated with agricultural activities. Various soil and water remediation techniques have been employed to reduce the risk associated with these contaminants. A study was conducted to examine the extent of leaching of heavy metals (Cd, Ni, Pb and Cr), NO 3 and P. For this purpose sandy and silt loam soils were amended with different waste materials, namely wood ash, solid waste ash, vegetable waste, charcoal, and sawdust. The soils were saturated with wastewater. Irrespective of the waste applied, the pH and EC of the amended soils were found to be greater than the control. Charcoal, sawdust and wood ash significantly decreased heavy metals, nitrate and phosphorus concentrations in the leachate. Treatments were more efficient for reducing Ni than other heavy metals concentrations. Waste amendments differed for heavy metals during the process of leaching. Heavy metals in the soil were progressively depleted due to the successive leaching stages. This research suggests that waste material may act as an adsorbent for the above contaminants and can reduce their leachability in soils.

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Effects of Long-Term Wastewater Irrigation on Soil Properties

Cited by 88 publications

References 17 publications

Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Effects of wastewater irrigation on soil properties and turfgrass growth

Reducing the leachability of nitrate, phosphorus and heavy metals from soil using waste material

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