Metals in Soil and Runoff from a Piedmont Hay Field Amended with Broiler Litter and Flue Gas Desulfurization Gypsum

Schomberg, Harry H.; Endale, Dinku M.; Jenkins, Michael B.; Chaney, Rufus L.; Franklin, Dorcas H.

doi:10.2134/jeq2017.09.0353

Cited by 6 publications

(5 citation statements)

References 47 publications

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“…This may be because, at near-neutral pH, the Fe in the solution mainly exists in the form of Fe(OH)2 + or Fe(OH)3, and forms a complex with sulfite [19]. Fe(III) and Fe(II) in the reaction solution can be rapidly converted, according to Equations (3) and (7), which is also a key step affecting the reaction rate in the Fe(III)-Na2SO3 system. When the pH approaches alkaline, the system still maintained good oxidation efficiency, probably because the interconversion of SO4 •− to HO • (Equation ( 21)) is favored at pH > 8.5 and the direct activation of sulfite by alkalion [29].…”

Section: Effect Of Ph On As(iii) Oxidationmentioning

confidence: 99%

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Calcium Sulfite Solids Activated by Iron for Enhancing As(III) Oxidation in Water

Cai

Quan

et al. 2021

Molecules

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Desulfurized gypsum (DG) as a soil modifier imparts it with bulk solid sulfite. The Fe(III)–sulfite process in the liquid phase has shown great potential for the rapid removal of As(III), but the performance and mechanism of this process using DG as a sulfite source in aqueous solution remains unclear. In this work, employing solid CaSO3 as a source of SO32−, we have studied the effects of different conditions (e.g., pH, Fe dosage, sulfite dosage) on As(III) oxidation in the Fe(III)–CaSO3 system. The results show that 72.1% of As(III) was removed from solution by centrifugal treatment for 60 min at near-neutral pH. Quenching experiments have indicated that oxidation efficiencies of As(III) are due at 67.5% to HO•, 17.5% to SO5•− and 15% to SO4•−. This finding may have promising implications in developing a new cost-effective technology for the treatment of arsenic-containing water using DG.

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Section: Effect Of Ph On As(iii) Oxidationmentioning

confidence: 99%

“…Currently, DG is mainly used as a soil conditioner [3], serving to improve certain properties of soil, such as its pH, water absorption, water retention, and so on. The potential oxidative ability of DG towards heavy metals or organic pollutants in soil-containing transition metals has rarely been reported [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Calcium Sulfite Solids Activated by Iron for Enhancing As(III) Oxidation in Water

Cai

Quan

et al. 2021

Molecules

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“…On the other hand, total nutrients loss in stimulated rainfall of 64 mm/h and slope of 0.18 was significantly observed in soil erosion water, with a different loss estimated in different soil management systems [35]. Furthermore, the loss of trace elements has been a concern in the past studies on agricultural soils under different management and geographical location [36] [37] [38] [39] [40].…”

Section: Introductionmentioning

confidence: 99%

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Angelique¹,

Dan²,

Ye³

et al. 2022

JACEN

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Trace elements are found in small concentrations in soil, yet plants require them for physiological functions. The runoff process leads to soil fertility loss by shifting soil particles and elements, and deposits them to a different position. However, there is a lack of information about the amount of trace elements that flow in tobacco-growing red soil during the natural rainy seasons due to runoff. In this study, runoff discharge was collected from two different soil mulching conditions (straw and no straw) at 15˚, in Miyi county of Sichuan province, to evaluate the characteristics of trace elements in runoff discharge. The runoff discharge was filtered to separate water (runoff) from sediment. The concentrations of the elements were analyzed in samples obtained from 9 erosive rainfall events, with 3 replications for every sample. The considered trace elements were Zinc (Zn), Copper (Cu), and Molybdenum (Mo). In addition, the total amount of each element loss per unit area (total loss) was also calculated statistically. The results revealed different concentrations and total losses for the selected trace elements. The total loss in runoff ranged from 10.82 to 194.05 mg/ha, 0.62 to 18.91 mg/ha, and 0.32 to 2.37 mg/ha for Zn, Cu, and Mo, respectively.

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“…furization gypsum (FGDG; calcium sulfate dihydrate, CaSO 4 •2H 2 O) from 2000 to 2018 (American Coal Ash Association 2021) as a byproduct of "scrubbing" sulfur dioxide (SO 2 ) from flue gases to meet air quality regulations (EPRI 2006;Kairies et al 2006). The FGDG currently produced is of high purity with low levels of toxic components (Schomberg et al 2018;Chen and Dick 2011;EPRI 2011;Koralegedara et al 2019). Average FGDG production from 2014 to 2018 was 29.8 Tg y -1 (Good and VanBriesen 2019;Southern Company 2017, 2018.…”

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confidence: 99%

Flue gas desulfurization gypsum and grass buffer strip influence on runoff and nutrient loss from inorganically and organically fertilized corn on a US Coastal Plain soil

Endale¹,

Strickland²,

Schomberg³

et al. 2021

Journal of Soil and Water Conservation

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Broiler litter (BL) and flue gas desulfurization gypsum (FGDG), both readily available in the US Southeast, can potentially ameliorate soil constraints adversely affecting agricultural productivity and environmental quality in the region. However, benefits and risks must be evaluated prior to making recommendations to producers. The effectiveness of a combination of FGDG and grass buffer strips (GBS) to reduce edge-of-field nutrient losses from corn (Zea mays L.) production under inorganic (NPK) or organic (BL) fertilization was evaluated on Coastal Plain soils near Tifton, Georgia, from April of 2014 through January of 2017. Nine treatments were randomly established in each of three replications on plots instrumented to collect runoff. This was the first phase of a three-phase study. Treatments consisted of combinations of three fertilizer treatments (NPK, BL, and BL+FGDG) and three GBS treatments (no GBS [-GBS], GBS without FGDG [GBS-FGDG], and GBS with FGDG [GBS+FGDG]). A tenth treatment of NPK+FGDG without GBS was also included. Annual rates for BL and FGDG were 13.45 Mg ha -1 each. The BL rate was based on a high nitrogen (N) demand of corn and would represent a risky scenario for nutrient loss. Runoff and concentrations and loads of nitrate-nitrogen (NO 3 -N), ammonium-nitrogen (NH 4 -N), total Kjeldahl nitrogen (TKN), dissolved reactive phosphorus (DRP), and total P (TP) were determined in runoff from 29 storms from May of 2015, through January of 2017. Rainfall partitioned into runoff (percentage runoff) decreased by 50% to 70% under -GBS with BL or BL+FGDG compared with NPK fertilization, and under GBS-FGDG or GBS+FGDG compared with -GBS for NPK and BL fertilization. Under -GBS, concentration of DRP and TP increased by ~160% from BL compared with NPK fertilization, and by 150% for DRP and by 115% for TP from BL+FGDG compared with NPK fertilization. On the other hand, the combined BL+FGDG and GBS+FGDG treatment reduced nutrient concentration by 65% to 80% compared with BL with -GBS (a standard practice), and nutrient load by 40% to 70% compared with NPK with -GBS (another standard practice) or BL with -GBS. Results indicate the potential for FGDG to improve edge-of-field runoff water quality when applied to fields with BL and to edge-of-field GBS. In planned follow-up articles, results will be compared with phase-2 when BL and FGDG rates were reduced by a third and phase-3 when BL application was discontinued.

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Metals in Soil and Runoff from a Piedmont Hay Field Amended with Broiler Litter and Flue Gas Desulfurization Gypsum

Cited by 6 publications

References 47 publications

Calcium Sulfite Solids Activated by Iron for Enhancing As(III) Oxidation in Water

Calcium Sulfite Solids Activated by Iron for Enhancing As(III) Oxidation in Water

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Flue gas desulfurization gypsum and grass buffer strip influence on runoff and nutrient loss from inorganically and organically fertilized corn on a US Coastal Plain soil

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