Synergistic degradation of PNP via coupling H2O2 with persulfate catalyzed by nano zero valent iron

حذف تتراسایکلین از محلول های آبی طی فرآیند Nano Zero Valent Iron/UV/H2O2

زمینه و هدف: حضور باقیمانده آنتی بیوتیک ها در محیط زیست امروزه به عنوان یکی از نگرانی های جهانی مطرح شده است و لزوم کنترل تخلیه آنها نیز بعنوان امری اجتناب ناپذیر مطرح شده است. این تحقیق، با هدف بررسی کارایی فرآیند تلفیقی شبه فنتون (UV/H2O2/nZVI) جهت تجزیه آنتی بیوتیک تتراسایکلین از محیط های آبی صورت گرفت. مواد و روشها: این تحقیق یک مطالعه تجربی بود که در مقیاس آزمایشگاهی و در دمای محیط انجام ...

Degradation of Lindane by Zero-Valent Iron Nanoparticles

Thus far, zero-valent iron has been studied mostly for the degradation of structurally simple oneand two-carbon halogenated organic contaminants such as chlorinated methanes, ethanes, and ethenes. In this research, laboratory synthesized particles of nanoscale iron were explored to degrade lindane, also known as -hexachlorocyclohexane, a formerly widely utilized pesticide and well-documented pe...

Sonocatalytic degradation of p-chlorophenol by nanoscale zero-valent copper activated persulfate under US irradiation in aqueous solutions

In this study, nanoscale zero-valent copper (nZVC) as catalyst activated persulfate (PS) was used for the degradation of p-chlorophenol (p-CP) under ultrasonic (US) irradiation in aqueous solution. The effect of different operational parameters such as solution pH (3.5-10.5), PS concentration (1-7.5 mm/L), nZVC dosage (5-35 mg/L) and initial p-CP concentration (10-100 mg/L) were evaluated at di...

H2O2 oxidations catalyzed by an iron(III) corrolazine: avoiding high-valent iron-oxido species?

Soil 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...