Ethics code: IR.AJUMS.REC.1398.889
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mashjoor S, Rahimi Z, Shushizadeh M R, Naji A, Farmahini Farahani H. Polymeric phyconanosorbed magnetite-based biocomposite for eutrophication control and simultaneous removal of nitrate and phosphate pollutants from water & wastewater in fishery industry. J Environ Health Eng 2026; 14 :86-112
URL: http://jehe.abzums.ac.ir/article-1-1159-en.html
URL: http://jehe.abzums.ac.ir/article-1-1159-en.html
Sakine Mashjoor *1 
, Zohreh Rahimi2 , Mohammad Reza Shushizadeh3 , Abolfazl Naji2 , Hadi Farmahini Farahani4
, Zohreh Rahimi2 , Mohammad Reza Shushizadeh3 , Abolfazl Naji2 , Hadi Farmahini Farahani4
1- Tarbiat Modares University, & Ahvaz Jundishapur University of Medical Sciences , mashjoor.s@gmail.com
2- University of Hormozgan
3- , Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran & Ahvaz Jundishapur University of Medical Sciences
4- Research Institute of Petroleum Industry, Tehran, Iran
2- University of Hormozgan
3- , Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran & Ahvaz Jundishapur University of Medical Sciences
4- Research Institute of Petroleum Industry, Tehran, Iran
Abstract: (2 Views)
Background: Rising nitrate and phosphate levels in water bodies—driven by excessive agricultural fertilizer use and inadequate wastewater treatment—have become a serious environmental concern. This study aimed to develop magnetite-based bio-composite nanofilms for the efficient removal of phosphate, nitrate, and nitrite ions from water.
Materials and Methods: Magnetite iron oxide nanoparticles were phycosynthesized using the green alga Ulva prolifera, enriched with rosemary essential oil, honey, and polyethylene glycol, and tested at concentrations ranging from 0.375 to 6 g. The resulting solution was copolymerized with a sodium alginate–30% glycerol polymer matrix to produce bio-composite nanoadsorbents. Synthesis was confirmed via PSA, ZP, AFM, XRD, VSM, TGA/DTA, BET, and elasticity testing. Removal efficiency for phosphates and nitrates (initial concentration 25 mg/L) was assessed over 60 minutes.
Results: Adsorption efficiency depended on adsorbent dosage, exposure time, equilibrium adsorption capacity, salinity, and temperature. Kinetically, the removal of all three contaminants followed a pseudo-first-order model. Isotherm fitting showed that phosphate adsorption followed a monolayer model, while nitrate and nitrite adsorption fitted both monolayer and multilayer models.
Conclusion: Given the efficient removal of common aquaculture pollutants, easy magnetic separation, and biocompatibility, this nanoadsorbent offers a promising basis for developing nanofilter water treatment systems.
Materials and Methods: Magnetite iron oxide nanoparticles were phycosynthesized using the green alga Ulva prolifera, enriched with rosemary essential oil, honey, and polyethylene glycol, and tested at concentrations ranging from 0.375 to 6 g. The resulting solution was copolymerized with a sodium alginate–30% glycerol polymer matrix to produce bio-composite nanoadsorbents. Synthesis was confirmed via PSA, ZP, AFM, XRD, VSM, TGA/DTA, BET, and elasticity testing. Removal efficiency for phosphates and nitrates (initial concentration 25 mg/L) was assessed over 60 minutes.
Results: Adsorption efficiency depended on adsorbent dosage, exposure time, equilibrium adsorption capacity, salinity, and temperature. Kinetically, the removal of all three contaminants followed a pseudo-first-order model. Isotherm fitting showed that phosphate adsorption followed a monolayer model, while nitrate and nitrite adsorption fitted both monolayer and multilayer models.
Conclusion: Given the efficient removal of common aquaculture pollutants, easy magnetic separation, and biocompatibility, this nanoadsorbent offers a promising basis for developing nanofilter water treatment systems.
Keywords: Nano-adsorbent, Green algae, Iron nanoparticles, Biocomposite, Phosphate/Nitrate removal, Aquatic ecosystem.
Type of Study: Research |
Subject:
Special
Received: 2026/02/21 | Accepted: 2026/05/17 | Published: 2026/08/29
Received: 2026/02/21 | Accepted: 2026/05/17 | Published: 2026/08/29
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