fgd gypsum phosphorus

Recycling phosphogypsum in road construction materials and …

The PG was almost completely dehydrated to hard gypsum, and II-U hard gypsum and II-E hard gypsum appeared at 600 °C–800 °C. In addition, soluble phosphorus was removed by converting soluble phosphorus to insoluble calcium pyrophosphate (CaP 2 O 7) (Liu et al., 2020b). Researchers also prepared …Web

Sustainable Uses of FGD Gypsum in Agricultural Systems

et al., 1989), and reducing soluble phosphorus (P) loss from agricultural fields (Table 2; Watts and Torbert 2009). Gypsum presently marketed for agricultural use is derived ... Flue gas desulfurization gypsum is a by-product of S removal from fuel combustion gases, primarily at coal-fired power plants. ...Web

SVXPDVD ORZ …

Flue gas desulfurization (FGD) gypsum can potentially be used as a low-cost calcium source for phosphorus removal and recovery from AD effluent. FGD gypsum contains mainly (typically≥95%)Web

Using flue gas desulfurization gypsum to remove dissolved …

Using flue gas desulfurization gypsum to remove dissolved phosphorus from agricultural drainage waters High levels of accumulated phosphorus (P) in soils of the Delmarva …Web

Coal Plant Byproduct, If Spread on Farms, Could Fight Lake Erie …

FGD gypsum is powdery, resembles flour, and can be applied using conventional farm spreaders. It costs about $35 to $50 per ton spread on the field, with a typical application rate being one or two tons per acre every two or three years. ... When spread on a field, gypsum binds in the soil with phosphorus to make calcium phosphate, which is a ...Web

Sorptive removal of phosphorus by flue gas desulfurization …

The flue gas desulfurization (FGD) gypsum produced as an energy plant waste byproduct has recently been advocated as a physiochemical remediation strategy …Web

Broiler Litter Ash and Flue Gas Desulfurization Gypsum Effects on

Peanut (Arachis hypogaea L.) requires calcium (Ca) and phosphorus (P). Flue gas desulfurization gypsum (FGDG) and broiler litter ash (BLA) could be used as Ca and P fertilizer for peanuts. A pot study was conducted to determine the effects of BLA and FGDG on peanut yield and nutrient uptake compared to superphosphate (SP). Peanut …Web

Optimal sequestration of carbon dioxide and phosphorus in soils …

1. pH values < 5.5. Little or no Ca 5 (PO 4) 3 OH precipitate is formed, showing that in a medium (soil or water) of pH 5.5 or lower, gypsum amendment cannot remove soluble phosphate from the solution. It has been long recognized that in an alkaline soil, phosphate fixation is related to Ca 2+ while in an acidic soil, the nutrient availability …Web

Sustainability | Free Full-Text | Upcycling of FGD Gypsum into a …

Synthetic gypsum produced from flue gas desulfurization (FGD) at coalfired power plants has the potential to serve as a more sustainable source for the agricultural application of this soil conditioner. ... Joern, B.C.; Brouder, S.M. Gypsum amendment and exchangeable calcium and magnesium affecting phosphorus and …Web

Gypsum as a Soil Amendment FSA2199

FGD-gypsum. 2. Gypsum can be used as a source of sulfur and calcium. 3. Gypsum will not change the pH of the soil. 4. Gypsum can be used to remediate sodic soils, provided there is a source of good quality water and the sodium . can be leached out of the root zone. 5. Gypsum can potentially reduce surface crusting in soils with a high ...Web

Gypsum Use to Reduce P Loss From Agricultural Fields

of the Phosphorus Index is an attempt to estimate the risk of P runoff from the landscape. ... Flue gas desulfurization (FGD) gypsum, a by-product generated when S is removed from smoke stacks of coal burning power plants, may be a lower-cost alternative to mined gypsum. Presently, FGD gypsum is used primarily by the wallboard industry.Web

Sorptive removal of phosphorus by flue gas desulfurization gypsum …

FGD gypsum and phosphorus sample preparation The as-received FGD gypsum was ground by pestle and mortar, and then passed through a 106-μm sieve, so all FGD gypsum used was <106-μm in size. Phosphorus stock solutions were prepared using reagent grade NaH 2 PO 4 (J.T. Baker) in the following concentrations: 0.01, 0.05, 0.10, …Web

Decreasing Phosphorus Loss in Tile‐Drained Landscapes Using …

Elevated phosphorus (P) loading from agricultural nonpoint-source pollution continues to impair inland waterbodies throughout the world. The application of flue gas desulfurization (FGD) gypsum to agricultural fields has been suggested to decrease P loading because of its high calcium content and P sorbing potential.Web

Influence of Flue Gas Desulfurization Gypsum on Phosphorus …

Flue-gas desulfurization (FGD) gypsum, a byproduct of coal-fired electrical utility plants, has been shown to effectively reduce phosphorus (P) leaching in many …Web

Recycling of Industrial Waste Gypsum Using Mineral …

by reacting sulfuric acid and phosphate rock to produce phosphoric acid [17], also has potential for MC. The annual production of FGD gypsum and phosphogypsum exceeds 140 million tons [18,19] and 280 million tons [20], respectively. If the total amounts of FGD gypsum and phosphogypsum were used to sequester CO2 through MC, almost …Web

Production of ammonium sulfate fertilizer from FGD-gypsum

Forced-oxidation flue gas desulfurization (FGD) scbbers can produce significant quantities of waste gypsum, which, if not utilized, require safe and economical disposal. Gypsum is also a waste product of the phosphate fertilizer industry, which has successfully utilized stacking methods of waste disposal for more than 20 years.Web

Sorptive removal of phosphorus by flue gas desulfurization gypsum …

FGD gypsum and phosphorus characterization. The physicochemical properties of the FGD gypsum and conventional gypsum (mined natural gypsum, as a comparison) were summarized in the Supplementary Information Tables S1 and S2. The FGD gypsum had a higher purity and water content, typically with lower amounts of …Web

Impact of Flue Gas Desulfurization Gypsum Applications to

Overall, FGD gypsum appeared to be an effective phosphorus abatement tool for southern Illinois soils to improve water quality. Though, how long it remains …Web

Influence of Flue Gas Desulfurization Gypsum on Phosphorus …

Flue-gas desulfurization (FGD) gypsum, a byproduct of coal-fired electrical utility plants, has been shown to effectively reduce phosphorus (P) leaching in many agricultural systems. However, its applications in horticultural production systems have been insufficiently researched resulting in limited industry adoption. To evaluate the efficacy of …Web

The effects of flue gas desulfurization gypsum (FGD gypsum) on …

After the application of FGD gypsum to soil, the abundant calcium ions react with excess phosphate ions, thereby converting most of the soil phosphorus to fixed phosphorus (He et al. 2008; Li et al. 2005), reducing the conversion of phosphorus to soluble fractions, and decreasing the leaching out and runoff of soluble phosphorus (Xu …Web

Sustainable Uses of FGD Gypsum in Agricultural Systems

Interest in using gypsum as a management tool to improve crop yields and soil and water quality has recently increased. Abundant supply and availability of flue gas desulfurization (FGD) gypsum, a by-product of scrubbing sulfur from combustion gases at coal-fired power plants, in major agricultural producing regions within the last two …Web

Reducing Water-Soluble Phosphorus in Soil through Flue Gas

Phosphorus runoff from agricultural land to surface water bodies, such as the Great Lakes, is an important environmental concern. Soil amendments, such as gypsum, may alter the chemistry of the soil solution to reduce the amount of water-soluble P (WSP) available for loss to runoff, and as such, the NRCS now recommends gypsum application as a …Web

The effects of flue gas desulfurization gypsum (FGD gypsum) …

The effects of flue gas desulfurization gypsum (FGD gypsum) on P fractions in a coastal plain soil Kun He1,2 & Xiaoping Li1 & Longli Dong1 Received: 14 January 2017/Accepted: 25 August 2017/Published online: 5 September 2017 ... gypsum, the available phosphorus decreased by an average of 3.9–17.2% (Zhang et al. 2013). A column leaching exper-Web

Carbonation of gypsum from wet flue gas desulfurization process

In this paper, waste gypsum from wet flue gas desulfurization (WFGD) mixed with NH 3 ·H 2 O was applied for CO 2 absorption in the solid-liquid-gas phase system. The effects of operation temperature, CO 2 flow rates, and ammonia-to-gypsum ratio on carbonation process were discussed. Meanwhile, a model for CO 2 absorption in …Web

Impact of Flue Gas Desulfurization Gypsum Applications to

• Flue gas desulfurization (FGD) gypsum applications reduced phosphorus (P) loads in surface runoff. • FGD gypsum at a rate of 2.2 Mg ha −1 was an effective P abatement tool in Hosmer silt loam soils. • P fertilization reduced the P abatement effectiveness of FGD gypsum in subsequent runoff events.Web

Soil Amendments | CropWatch | University of Nebraska–Lincoln

The FGD gypsum was applied at 0, 1.12, 4.48 and 8.96 Mg ha-1 in early April 2014. Corn grain was increased with FGD gypsum application in the areas of the field that had either low soil pH, soil organic matter, or both. This could be likely due to nutrient benefits as well as effect of FGD gypsum in parts of this field.Web

Using flue gas desulfurization gypsum to remove dissolved phosphorus

High levels of accumulated phosphorus (P) in soils of the Delmarva Peninsula are a major source of dissolved P entering drainage ditches that empty into the Chesapeake Bay. ... In April 2007, 110 Mg of flue gas desulfurization (FGD) gypsum, a low-cost coal combustion product, was used as the reactive ingredient in a ditch filter. The ditch ...Web

Crystals | Free Full-Text | Use of Flue Gas Desulfurization Gypsum

This research aims to study the utilization of waste from power plants, construction and demolition, and agriculture by varying the ratios of flue-gas desulfurization (FGD) gypsum, construction and demolition waste (CDW), and oil palm trunks (OPT) in concrete production. This research used these as the raw materials for …Web

Evaluation of flue gas desulfurization gypsum as a low

Combining FGD gypsum treatment with traditional chemical treatments using Ca(OH) 2 or FeCl 3 could achieve >99% P removal with reduced chemical costs. This study demonstrated that FGD gypsum is an effective calcium precipitant for …Web

Integrated Assessment of the Environmental and Economic …

Taking a typical wet FGD unit of 300 MW power plant in China as an example, the limestone/gypsum flue gas desulfurization system (L-FGD) process was compared with the LCS by using the method of life cycle assessment and life cycle cost (LCC). The result shows that the overall environmental impact of the LCS is 0.2913.Web