Water Treatment Residuals and Biosolids Co‐applications Affect Phosphatases in a Semi‐arid Rangeland Soil

Bayley, Robin; Ippolito, James A.; Stromberger, Mary E.; Barbarick, K. A.; Paschke, Mark W.

doi:10.1080/00103620802432733

Cited by 6 publications

(14 citation statements)

References 35 publications

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“…It is interesting to note that the decrease in extractable P content was still evident in the long-term plots, implying long-term P adsorption, stability, and implications for improved environmental quality. Bayley et al (2008a) focused on the long-term WTRbiosolids co-application plots used in the current study. Using pathway analysis, the authors showed that even aft er 13 yr following initial co-application that WTR still acted as the major stable P sink.…”

Section: Soil Chemical Characterizationmentioning

confidence: 99%

“…Agyin-Birikorang et al (2007) added WTR to heavily manured soils, noting that Al-based WTR immobilized P and remained stable 7.5 yr following initial land application. In a similar study, Bayley et al (2008a) focused on long-term WTR-biosolids co-application eff ects on P cycling in semiarid rangelands. Using pathway analysis, the authors showed that even aft er 13 yr following initial co-application, WTR still acted as the major stable P sink.…”

mentioning

confidence: 99%

“…Control plots which had received either 0 Mg ha -1 of WTR or biosolids, or 10 Mg ha -1 biosolids only (identical rate as used in our study), were not established as part of this study. However, others have compared soil, plant, and microbial community structural changes in the WTR-biosolids co-amended soils to biosolids-only amended soils and non-amended control soils from plots of an adjacent study (Bayley, 2006;Bayley et al, 2008a). Bayley et al (2008a) noted that the lowest WTR-biosolids co-application rate (5 Mg WTR ha -1 + 10 Mg biosolids ha -1 ) was comparable with a 10 Mg biosolids ha -1 application rate (from an adjacent study) in terms of P fractionation dynamics.…”

mentioning

confidence: 99%

“…However, others have compared soil, plant, and microbial community structural changes in the WTR-biosolids co-amended soils to biosolids-only amended soils and non-amended control soils from plots of an adjacent study (Bayley, 2006;Bayley et al, 2008a). Bayley et al (2008a) noted that the lowest WTR-biosolids co-application rate (5 Mg WTR ha -1 + 10 Mg biosolids ha -1 ) was comparable with a 10 Mg biosolids ha -1 application rate (from an adjacent study) in terms of P fractionation dynamics. Th e authors also found that the majority of P fractionation data collected from co-applied plots were greater than a true control (i.e., received no application of WTR or biosolids, again from an adjacent study).…”

mentioning

confidence: 99%

“…Th e Bayley et al (2008a) study focused primarily on P transformations associated with short-term and long-term WTR-biosolids co-applications. Longer-term studies on soils, plant diversity and productivity are necessary to accurately assess the lasting environmental impacts of co-applying these materials on rangeland ecosystem stability.…”

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confidence: 99%

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Water Treatment Residuals and Biosolids Long‐Term Co‐Applications Effects to Semi‐Arid Grassland Soils and Vegetation

Ippolito

Barbarick

Stromberger

et al. 2009

Soil Science Soc of Amer J

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Water treatment residuals (WTRs) and biosolids are byproducts from municipal water treatment processes. Both byproducts have been studied separately for land application benefits. There are possible environmental benefits of WTRs and biosolids co‐application but these studies are limited. Our objectives were to determine relative long‐term (13–15 yr) effects of a single and short‐term (2–4 yr) effects of repeated WTR‐biosolids co‐applications on soil chemistry, microbiology, and plant community structure in a Colorado semiarid grassland. Only relative changes associated between co‐applications were studied, as we assumed WTR application would only occur if used as a management practice. Three WTR rates (5, 10, and 21 Mg ha−1) were surface co‐applied (no incorporation) with a single biosolids rate (10 Mg ha−1) once in 1991 (long‐term plots) and again in 2002 (short‐term plots). Soil 0‐ to 8‐, 8‐ to 15‐, and 15‐ to 30‐cm depth pH, electrical conductivity (EC), NO3–N, NH4–N, total C, and total N were not affected by WTR application in 2004, 2005, or 2006. Ammonium‐bicarbonate diethylenetriaminepentaacetic acid (AB‐DTPA)‐ extractable soil Al was unaffected by WTR application, but extractable P and Mo decreased with increasing WTR rate because of WTR adsorption. Plant tissue P and Mo content decreased with specific plant species and years due to adsorption to WTR; no deficiency symptoms were observed. Plant community composition and cover were largely unaffected by WTR application. Soil microbial community structure was unaffected by WTR co‐application rate (total ester‐linked fatty acid methyl ester [EL‐FAME] concentrations ranged from 33.4 to 54.8 nmol g−1 soil), although time since biosolids‐WTR application affected a subset of microbial community fatty acids including markers for Gram‐positive and Gram‐negative bacteria. Overall, WTR‐biosolids co‐applications did not adversely affect semiarid grassland ecosystem dynamics.

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Section: Soil Chemical Characterizationmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Water Treatment Residuals and Biosolids Long‐Term Co‐Applications Effects to Semi‐Arid Grassland Soils and Vegetation

Ippolito

Barbarick

Stromberger

et al. 2009

Soil Science Soc of Amer J

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Evaluating sorbents for reducing per‐ and polyfluoroalkyl substance mobility in biosolids‐amended soil columns

Openiyi,

Lee,

Alukkal

2024

J of Env Quality

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Sustainable reuse of biosolids as fertilizers is being threatened by the presence of per‐ and polyfluoroalkyl substances (PFAS) in our waste stream warranting research on strategies that will minimize PFAS mobility from land‐applied biosolids. Here, we evaluated the ability of waste‐derived sorbents aluminum chlorohydrate water treatment residuals (ACH‐WTRs, 1 wt%) and biosolids‐based biochar (1.5 wt%) to reduce mobility of PFAS in columns with 3 wt% biosolids‐amended soils with and without sorbent layered on top of soil only and operated under transient unsaturated conditions. Cycles of simulated rain events of approximately three pore volumes distributed over a 4‐day period followed by 3 days of drying were imposed for 6 months. Total PFAS concentrations in collected leachates were lower in the sorbent‐treated columns compared to the control columns. Biochar outperformed the ACH‐WTR with 41% versus 32% lower total PFAS in leachate, respectively, compared to the control. The most significant mitigation effect was observed with PFOS (perfluorooctane sulfonate) with 68% and 62% less PFOS in the leachates from the columns treated with ACH‐WTR or biochar compared to the control, respectively. These results provide a first‐of‐its‐kind assessment of the potential benefit of co‐applying WTRs or biochar with biosolids to reduce PFAS mobility in biosolids‐amended soils.

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Assessing modified aluminum-based water treatment residuals as a plant-available phosphorus source

et al. 2020

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Water Treatment Residuals and Biosolids Co‐applications Affect Phosphatases in a Semi‐arid Rangeland Soil

Cited by 6 publications

References 35 publications

Water Treatment Residuals and Biosolids Long‐Term Co‐Applications Effects to Semi‐Arid Grassland Soils and Vegetation

Water Treatment Residuals and Biosolids Long‐Term Co‐Applications Effects to Semi‐Arid Grassland Soils and Vegetation

Evaluating sorbents for reducing per‐ and polyfluoroalkyl substance mobility in biosolids‐amended soil columns

Assessing modified aluminum-based water treatment residuals as a plant-available phosphorus source

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