Evaluation of Zero-Valent Iron for Pb(II) Contaminated Soil Remediation: From the Analysis of Experimental Mechanism Hybird with Carbon Emission Assessment
نویسندگان
چکیده
Carbon emission is one of the main causes global climate change, thus it necessary to choose a low-carbon method in contaminated soil remediation. This paper studies adsorption ability ZVI on Pb(II) soils under different working conditions. The removal efficiency was 98% because suitable dosage, log reaction time and low initial solution concentration. whole balancing process much fast according pseudo-second-order kinetic Freundlich isothermal model. Moreover, sequential extraction procedure (SEP) showed transformed from Fe/Mn oxides-bound form residual soils. From scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) X-ray diffraction (XRD) results, confirmed that zero-valent iron (ZVI) stabilizes pollutants mostly through combination chemical physical adsorption. economic carbon assessments were used compare cost emissions methods. results show has excellent benefits emission.
منابع مشابه
Evaluation of two remediation techniques for the removal of silica from contaminated soil, Azandarian region, Iran
Background and Objective: Bioremediation and one of its main branches, namely phytoremediation, is one of the most important and basic processes for eliminating pollutants from the environment. Due to the large number of silica factories in Azandarian area of Malayer city and high soil silica pollution in this area, this study was conducted to compare the bioremediation effect of Fusarium oxy...
متن کاملApplication of green zero-valent iron nanoparticles to the remediation of soils contaminated with ibuprofen.
Zero-valent iron nanoparticles (nZVIs) are often used in environmental remediation. Their high surface area that is associated with their high reactivity makes them an excellent agent capable of transforming/degrading contaminants in soils and waters. Due to the recent development of green methods for the production of nZVIs, the use of this material became even more attractive. However, the kn...
متن کاملSoil Remediation Using Nano Zero-valent Iron Synthesized by an Ultrasonic Method
A new method for the synthesis of nano zero-valent iron (nZVI) was developed in the present study. Ultrasonic waves, as a novel method, were used to synthesize the nanoparticles. The morphology and surface compositions of the particles were characterized by using FESEM, XRD, BET, and particle size analyzer. The synthesized nanoparticles were then utilized as a Fenton-like catalyst to degrade of...
متن کاملCarbothermal synthesis of carbon-supported nanoscale zero-valent iron particles for the remediation of hexavalent chromium.
Nanoscale, zero-valent iron is a promising reagent for in situ reduction of a variety of subsurface contaminants, but its utility in full-scale remediation projects is limited by material costs. Iron nanoparticles (20-100 nm diameter) supported on carbon (C-Fe0) were synthesized by reacting iron salts, adsorbed or impregnated from aqueous solutions onto 80 m2/g carbon black, at 600-800 degrees ...
متن کاملEnhancement of electrokinetic remediation of hyper-Cr(VI) contaminated clay by zero-valent iron.
This paper investigated the effectiveness of incorporating zero-valent iron (ZVI) into electrokinetic (EK) to remediate hyper-Cr(VI) contaminated clay (2497 mg/kg). A ZVI wall was installed in the center of the soil specimen and was filled with 1:1 (w/w) ratio of granular ZVI and sand. Results show that transport of H(+) is greatly retarded by the strong opposite migration of anionic chromate i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13020452