Enhancement of phosphorus sorption onto light expanded clay aggregates by means of aluminum and iron oxide coatings

Yaghi, Nader; Hartikainen, Helinä

doi:10.1016/j.chemosphere.2013.06.059

Cited by 42 publications

(19 citation statements)

References 25 publications

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“…In expansive 2:1 clays, which can take up nutrients and water, Al can be replaced by Fe or Mn. Apparently, in this fraction, P was sorbed to the surfaces of clay minerals by ligand exchange with a metal hydroxide (Yaghi and Hartikainen, 2013). In any case, the analyses clearly show that NNP and fine colloids of forest stream waters not only differed in hydrodynamic diameter but also in their composition, thus rendering the complex and important carriers for colloidal P and other elements of different binding form and possibly origin.…”

Section: Resultsmentioning

confidence: 99%

“…In general, aquatic NNP and colloids can be rich both in minerals, with which P associates, or organic matter containing significant amounts of organically bound P (Darch et al, 2014). Clay minerals, specifically, can strongly adsorb phosphate (Edzwald et al, 1976) or act as carriers for P through ligand exchange of phosphate with metal hydroxides on the exchange surface (Yaghi and Hartikainen, 2013). All colloidal constituents are either present as these single components (minerals or organic) that can associate with P species, or can form organo‐mineral complexes (Klitzke and Lang, 2007, and references therein).…”

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confidence: 99%

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Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

Gottselig¹,

Nischwitz

Meyn

et al. 2017

Vadose Zone Journal

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

Gottselig¹,

Nischwitz

Meyn

et al. 2017

Vadose Zone Journal

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“…The altered hydrology may also extend the time that the water table is interacting with the topsoil which tends to be rich in phosphorus, especially in agricultural landscapes with a long history of annual fertilizer applications (Mardamootoo et al 2010). Additionally, elevated water tables for prolonged periods may promote anoxic conditions suitable for reduction of phosphorus bound minerals like aluminum and especially iron (Yaghi and Hartikainen 2013). Both have the potential to increase the mobility of biologically available forms of phosphorus.…”

Section: Consistency Between Measured and Modeled Tile Nomentioning

confidence: 99%

A synthesis and comparative evaluation of factors influencing the effectiveness of drainage water management

Ross

Herbert

Sowa

et al. 2016

Agricultural Water Management

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Viable large-scale crop production in the United States requires artificial drainage in humid and poorly drained agricultural regions. Excess water removal is generally achieved by installing tile drains that export water to open ditches that eventually flow into streams. Drainage water management (DWM) is a conservation practice that allows farmers to artificially raise the outlet elevation of a field's drain tile and can reduce nutrient loss during wet periods by storing more water in the field. We intended to assess the effectiveness of DWM to reduce drainage discharge and nutrient loads and additionally identify predictor variables that influence DWM effectiveness. We compared managed (i.e., DWM) and free draining records using paired t-tests, and identified factors associated with DWM effectiveness using a multiple linear regression approach. T-test results indicated that DWM was highly effective in reducing drainage water discharge and nutrient losses via drain tiles as tile discharge volumes were reduced on average 46%, while tile nitrate loads were reduced by 48%. In addition, total phosphorus and dissolved reactive phosphorus loads were reduced by 55% and 57%, respectively. Based on regression results, we found that several aspects of farm and tile drain management were associated with DWM effectiveness, while site specific landscape characteristics were less likely to predict effectiveness. While DWM is effective as a conservation practice to reduce discharges of water and nutrients from drain tiles, we also identified several knowledge gaps. Future research should investigate effects of DWM on water and nutrients lost in other pathways such as surface runoff, preferential flow, groundwater recharge and biological uptake, and also focus more attention on phosphorus as there is a paucity of research on this topic.

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“…For the ecological protection and efficient use of waste, the production of LWAs using incinerator bottom ash, fly ash, sewage sludge, reservoir sediment, coconut shells, water purification sludge, waste thin film transition liquid crystal displays, textile sludge, paper sludge, non-metallic automotive shredder residues, recycled polyolefin waste, cement kiln dust, etc., has attracted many scholars to engage in related research [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Hsu explored the purification and recycling of grinding sludge [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Application of the Taguchi Method for Optimizing the Process Parameters of Producing Lightweight Aggregates by Incorporating Tile Grinding Sludge with Reservoir Sediments

2017

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This study aimed to apply the Taguchi optimization technique to determine the process conditions for producing synthetic lightweight aggregate (LWA) by incorporating tile grinding sludge powder with reservoir sediments. An orthogonal array L16(45) was adopted, which consisted of five controllable four-level factors (i.e., sludge content, preheat temperature, preheat time, sintering temperature, and sintering time). Moreover, the analysis of variance method was used to explore the effects of the experimental factors on the particle density, water absorption, bloating ratio, and loss on ignition of the produced LWA. Overall, the produced aggregates had particle densities ranging from 0.43 to 2.1 g/cm3 and water absorption ranging from 0.6% to 13.4%. These values are comparable to the requirements for ordinary and high-performance LWAs. The results indicated that it is considerably feasible to produce high-performance LWA by incorporating tile grinding sludge with reservoir sediments.

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Enhancement of phosphorus sorption onto light expanded clay aggregates by means of aluminum and iron oxide coatings

Cited by 42 publications

References 25 publications

Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters

A synthesis and comparative evaluation of factors influencing the effectiveness of drainage water management

Application of the Taguchi Method for Optimizing the Process Parameters of Producing Lightweight Aggregates by Incorporating Tile Grinding Sludge with Reservoir Sediments

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