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Treatment of azo dye production wastewaters using Photo-Fenton-like advanced oxidation processes: Optimization by response surface methodology
Abstract Treatability of synthetic azo dye production wastewaters from Acid Blue 193 and Reactive Black 39 production and real Reactive Black 39 production effluent via Photo-Fenton-like process was
Bisphenol A treatment by the hot persulfate process: oxidation products and acute toxicity.
Acute toxicity tests conducted with Vibrio fischeri indicated that the inhibitory effect of 88 μM BPA solution originally being 58%, increased to 84% after 30 min and decreased to 22% after 90 min hot persulfate treatment that could be attributed to the formation and subsequent disappearance of oxidation products.
Multivariate analysis of anionic, cationic and nonionic textile surfactant degradation with the H(2)O(2)/UV-C process by using the capabilities of response surface methodology.
According to the established polynomial regression models, the process independent variables "treatment time" and "initial COD content" played more significant roles in surfactant photodegradation than the process variable "initial H(2)O(2), concentration" under the studied experimental conditions.
Comparison of sulfate and hydroxyl radical based advanced oxidation of phenol
Abstract UV-C photo-assisted persulfate (PS), hydrogen peroxide (H 2 O 2 ) and peroxymonosulfate (PMS) oxidation processes were evaluated and compared for aqueous phenol degradation. The effect of
Removal of iopamidol, an iodinated X-ray contrast medium, by zero-valent aluminum-activated H2O2 and S2O82−
Abstract Activation of H 2 O 2 (HP) and S 2 O 8 2− (PS) with zero valent aluminum (ZVA, 1 g/L) nanoparticles was investigated for the treatment of the X-ray contrast medium and micropollutant
Complexing agent and heavy metal removals from metal plating effluent by electrocoagulation with stainless steel electrodes.
The study focused on the effect of important operation parameters on electrocoagulation process performance in terms of organic complex former, nickel and zinc removals as well as sludge production and specific energy consumption.
Treatment of phthalic acid esters by electrocoagulation with stainless steel electrodes using dimethyl phthalate as a model compound.
Activated sludge inhibition experiments revealed that toxicity could be significantly reduced by electrocoagulation application and appeared to be a strong evidence of an oxidative removal mechanism.
Optimization of the photo-Fenton-like process for real and synthetic azo dye production wastewater treatment using response surface methodology.
The Central Composite Design technique was used to study the effect of some critical process parameters of the photo-Fenton process on synthetic Acid Blue 193 production wastewater treatment efficiency in terms of color, chemical oxygen demand (COD) and total organic carbon (TOC) removals.
Photo-Fenton-like treatment of BPA: effect of UV light source and water matrix on toxicity and transformation products.
Acute toxicity analysis employing Vibrio fischeri revealed that the inhibitory effect of BPA decreased significantly during the course of Photo-Fenton-like treatment, and a reaction pathway featuring hydroxylation, dimerization and ring opening steps is proposed.
S2O8(2-)/UV-C and H2O2/UV-C treatment of Bisphenol A: assessment of toxicity, estrogenic activity, degradation products and results in real water.
Results indicated that degradation products being more toxic than BPA were formed at the initial stages of H2O2/ UV-C whereas a rapid and steady reduction in toxicity was observed during S2O8(2-)/UV-C treatment in pure water.