Adsorption of ammonium and phosphate by feather protein based semi-interpenetrating polymer networks hydrogel as a controlled-release fertilizer

Su, Yuan; Liu, Jia; Yue, Qinyan; Li, Qian

doi:10.1080/09593330.2013.831461

Cited by 20 publications

(5 citation statements)

References 35 publications

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“…Fast removal of ammonium ions in a pH range from 3 to 8 was achieved using a hydrogel consisting of poly(vinyl alcohol), acrylic acid (AA), and tourmaline (Tm) with an entangled tridimensional network . Adsorption of both ammonium and phosphate ions in a pH range between 4 to 9 was demonstrated using a protein-grafted poly(potassium acrylate)/poly(vinyl alcohol) (FP-g-PKA/PVA) hydrogel produced through graft copolymerization . Several hybrid polymer nanocomposites have been reported for phosphate removal, e.g., a hybrid polymer nanocomposite (HPN-Pr) biofilm reactor, polyaniline/Ni 0.5 Zn 0.5 Fe 2 O 4 magnetic nanocomposite, alginate/Fe(III) capsules, and alginate beads. , Examples of other commonly used sorbents with their sorption characteristics are presented in Table .…”

Section: Nanoporous Sorbents For the Removal And Recovery Of Pmentioning

confidence: 99%

Nanoporous Sorbents for the Removal and Recovery of Phosphorus from Eutrophic Waters: Sustainability Challenges and Solutions

Othman

Dumitrescu

Andreescu

et al. 2018

ACS Sustainable Chem. Eng.

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Increased industrial and agricultural activity has affected the availability of phosphorus (P) in nature and has caused a significant imbalance in the P cycle with long-term consequences on ecosystem health and sustainability. While P is an essential element for food production as well as plant and animal nutrition, it is also a limited nonrenewable resource whose availability is expected to decrease in the next century. Widespread application of P-based fertilizers and their excessive accumulation in water bodies leads to eutrophication which is associated with overgrowth of harmful algal blooms and degradation of water quality. This paper provides an overview of contemporary challenges and methodologies for improving P use efficiency and sustainability in the environment. Technologies and processes for the removal of P-containing compounds from water through the use of functional nanomaterial sorbents with tailored surface properties for capture, removal, and recycling are described. Various classes of materials including carbon-based, zeolites, mesoporous silica, metal organic frameworks, metal oxides and hydroxides, biomass-derived materials, and P-binding receptors are reviewed along with their properties, binding affinity, and adsorption capacity. The potential of these materials to control the amount of P in the environment and create decision support tools for water resource management is also discussed, with examples of applications.

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Section: Nanoporous Sorbents For the Removal And Recovery Of Pmentioning

confidence: 99%

Nanoporous Sorbents for the Removal and Recovery of Phosphorus from Eutrophic Waters: Sustainability Challenges and Solutions

Othman

Dumitrescu

Andreescu

et al. 2018

ACS Sustainable Chem. Eng.

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“…Acid-alkali treatment typically immerses livestock keratin waste in a strong acid or alkali solution and then uses hydrolysis, neutralization, and drying to obtain the final product. Common acid or alkali solutions consist of HCl, H 2 SO 4 , Ca(OH) 2 , KOH, and NaOH [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. The breaking down of peptide and disulfide bonds during the dissolution process creates a discrepancy between the yield and molecular weight of livestock keratin, which needs to be resolved for the acid-alkali treatment.…”

Section: Methods For the Valorization Of Livestock Keratinmentioning

confidence: 99%

“…Keratin-based hydrogel is one of the slow-release fertilizers and has excellent properties. Su et al prepared novel chicken-feather keratin grafted poly(potassium acrylate)/polyvinyl alcohol hydrogels by graft copolymerization, and the results showed that these hydrogels had good water retention properties and nitrogen and phosphorus adsorption properties [ 19 ]. Meanwhile, the maximum release values of nitrogen and phosphorus from the hydrogel were 69.46% nitrogen and 65.23% phosphorus in the field’s soil within 30days, which values are best fitted by the Ritger–Peppas equation [ 16 ].…”

Section: Application Of Livestock Keratin Waste In Agriculturementioning

confidence: 99%

Valorization of Livestock Keratin Waste: Application in Agricultural Fields

Chen

Gao

et al. 2022

IJERPH

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Livestock keratin waste is a rich source of protein. However, the unique structure of livestock keratin waste makes its valorization a great challenge. This paper reviews the main methods for the valorization of livestock keratin waste, which include chemical, biological, and other novel methods, and summarizes the main agricultural applications of keratin-based material. Livestock keratin waste is mainly used as animal feed and fertilizer. However, it has promising potential for biosorbents and in other fields. In the future, researchers should focus on the biological extraction and carbonization methods of processing and keratin-based biosorbents for the soil remediation of farmland.

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“…investigated a biodegradable blend film based on fish myofibrillar protein. Su et al . produced a new feather protein‐grafted poly(potassium acrylate)/polyvinyl alcohol semi‐interpenetrating polymer networks hydrogel for adsorption and release of fertilizer.…”

Section: Introductionmentioning

confidence: 99%

Amphoteric superabsorbent polymer based on waste collagen as loading media and safer release systems for herbicide 2, 4‐D

Yin

Wang

et al. 2019

J of Applied Polymer Sci

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As release formulations, superabsorbent polymers have attracted considerable attentions to reduce herbicide leaching and mitigate contamination. For this purpose, this study dealt with preparation, characterization, and performance test of a novel amphoteric superabsorbent polymer in adsorption and release of 2, 4-Dichlorophenoxyacetic acid (2, 4-D) herbicide. LW-g-p(AA-co-DMDAAC) was successfully synthesized by using leather waste (LW) as raw material and acrylic acid (AA), and dimethyldiallylammonium chloride (DMDAAC) as monomers. Then, the resulting LW-g-p(AA-co-DMDAAC) was characterized before and after 2, 4-D sorption by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). In addition, LW-g-p(AA-co-DMDAAC) with great equilibrium swelling capacity of 3203 g/g in distilled water, 181 g/g in 0.9 wt % NaCl exhibited excellent performance of swelling. Two absorption peaks appeared at pH = 4 and 7 solely when swelling occurred, and the swelling behavior in pH = 7 satisfied the pseudo first-order kinetic equation. Moreover, the sorbed 2, 4-D reached at 68 mg/g and showed sustained release cycle of 45 days under acidic or alkaline conditions. Therefore, the sustained release pattern of 2, 4-D as well as water absorbency made LW-g-p (AA-co-DMDAAC) suitable and potential candidate for controlling the release of herbicides to improve utilization and reduce environmental pollution.

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Adsorption of ammonium and phosphate by feather protein based semi-interpenetrating polymer networks hydrogel as a controlled-release fertilizer

Cited by 20 publications

References 35 publications

Nanoporous Sorbents for the Removal and Recovery of Phosphorus from Eutrophic Waters: Sustainability Challenges and Solutions

Nanoporous Sorbents for the Removal and Recovery of Phosphorus from Eutrophic Waters: Sustainability Challenges and Solutions

Valorization of Livestock Keratin Waste: Application in Agricultural Fields

Amphoteric superabsorbent polymer based on waste collagen as loading media and safer release systems for herbicide 2, 4‐D

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