Category: 117-96-4

Gonder, Zeren Beril published the artcileDetailed characterization, antibiotic resistance and seasonal variation of hospital wastewater, Safety of Diatrizoic Acid, the main research area is micro pollutant antibiotic resistance hospital wastewater; Antibiotic resistance; Characterization; Hospital wastewater; Micro-pollutants; Seasonal variation.

This study investigates the presence of the different classes of micro-pollutants such as pharmaceutical active compounds (PhACs) (20 antibiotics, 8 analgesics and anti-inflammatories, 5 cytostatic agents, 7 β-blockers, 4 lipid regulators, 13 psychiatrics, 1 antidiabetic, 1 receptor antagonist, 1 local anesthetic, 1 antihypertensive and their 5 metabolites), hormones (8 compounds), X-ray contrast agents (6 compounds), benzotriazoles (3 compounds) and pesticides (6 compounds), and antibiotic resistance in hospital wastewater (HWW) of a medical faculty in Istanbul, Turkey. In addition, the seasonal variations of the selected PhACs and X-ray contrast agents and antibiotic resistance were evaluated for 2 years in a total of eight samples. In the PhACs, sulfamethoxazole and its metabolite (4 N-acethyl-sulfamethoxazole) in the antibiotic group and paracetamol in the analgesic and anti-inflammatory group were found at 100% of frequency and the highest concentrations as 35, 43 and 210μg/L, resp. The mean concentrations of psychiatric compounds were found less than 0.25μg/L except carbamazepine (1.36μg/L). Bisphenol A in hormone group had the highest concentration up to 14μg/L. In the hormone group compounds, 17-α-Ethinylestradiol and 17-β-Estradiol were detected at lower mean concentrations of 0.2 and 0.05μg/L, resp. 1H-benzotriazole had the highest concentration with the mean concentration of 24.8μg/L in benzotriazole group compounds The compounds in X-ray contrast agents group were noted as compounds detected at the highest concentration in HWW up to 3000μg/L. Antibiotic resistance against azithromycin, clindamycin and trimethoprim-sulfamethoxazole antibiotics was observed around 50% in the winter period. The seasonal variation was detected for the most of the investigated PhACs, especially in antibiotic group which was in line with those significant differences in antibiotic resistance rates in the studied antibiotics between winter and summer seasons.

Environmental Science and Pollution Research published new progress about Achromobacter xylosoxidans. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Safety of Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Su, Yuan-Hsiao published the artcileSolution-phase parallel synthesis and screening of anti-tumor activities from fenbufen and ethacrynic acid libraries, Application In Synthesis of 117-96-4, the main research area is solution phase parallel synthesis fenbufen ethacrynic acid library preparation; amidation fenbufen ethacrynic amine carboxylic acid reactant; fenbufen ethacrynic acid library preparation antitumor agent.

The derivatives with fenbufen and ethacrynic acid core compounds was synthesized through a facial preparation of 1-amino-4-azidobutane. The subsequent coupling with 102 members of carboxylic acids afforded amide products. The in situ screening using colorimetric assay with 3-(4.5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide showed that fenbufen but not ethacrynic acid Bu amide members displayed the cytotoxicities to tumor cells substantially, including two human cell lines (MCF7 and A549) and two murine cell lines (C26 and TRAMP-C1). Three fenbufen analogs, e.g. I, II and III, were found to have a good anti-tumor activity comparable to cisplatin.

Bioorganic & Medicinal Chemistry Letters published new progress about Amidation (vs bioactivity). 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Application In Synthesis of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wols, B. A. published the artcileDegradation of pharmaceuticals in UV (LP)/H2O2 reactors simulated by means of kinetic modeling and computational fluid dynamics (CFD), Synthetic Route of 117-96-4, the main research area is hydrogen peroxide reactor kinetic model CFD UV pharmaceutical degradation; Advanced oxidation process; CFD; Modelling; Pharmaceuticals; UV; Water treatment.

UV/H2O2 treatment is a well-established technique to degrade organic micropollutants. A CFD model in combination with an advanced kinetic model is presented to predict the degradation of organic micropollutants in UV (LP)/H2O2 reactors, accounting for the hydraulics, fluence rate, complex (photo)chem. reactions in the water matrix and the interactions between these processes. The model incorporates compound degradation by means of direct UV photolysis, OH radical and carbonate radical reactions. Measurements of pharmaceutical degradations in pilot-scale UV/H2O2 reactors are presented under different operating conditions. A comparison between measured and modeled degradation for a group of 35 pharmaceuticals resulted in good model predictions for most of the compounds The research also shows that the degradation of organic micropollutants can be dependent on temperature, which is relevant for full-scale installations that are operated at different temperatures over the year.

Water Research published new progress about Computational fluid dynamics. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Synthetic Route of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wols, B. A. published the artcileDesign aspects of UV/H2O2 reactors, Synthetic Route of 117-96-4, the main research area is design UV hydrogen peroxide reactor.

The design of UV/H2O2 reactors was studied. An anal. approach was followed to provide characteristics (maximum fluence and maximum possible degradation) for an ideal system. An efficiency parameter was introduced that relates the actual performance of a reactor with the best possible performance for a reactor with a certain water flow, lamp power and UV transmittance. From the anal. model, several design parameters were studied. The desired treatment level influences the choice of a design parameter, as the fluence distribution becomes less important at lower desired treatment levels. As the desired degradation levels in UV/H2O2 applications are lower than the desired inactivation levels for UV disinfection, a UV/H2O2 reactor may be designed with a larger water layer depth than UV disinfection reactors. Manipulating the velocity profile towards a profile that mimics the fluence rate profile is beneficial, as well as increasing mixing. Increasing the number of lamps (while the total energy consumption remains the same) is beneficial, as it results in a more uniform fluence rate profile. Enlarging the quartz sleeve has limited effect. Changing the distribution of H2O2 in the reactor also has limited effects. Using the design parameters, new UV/H2O2 reactor types were developed with CFD simulations and tested exptl. An increase in log degradation ≤30% was demonstrated by the improved reactor design.

Chemical Engineering Science published new progress about Computational fluid dynamics. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Synthetic Route of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Yongjun published the artcileRemoval of emerging organic contaminants with a pilot-scale biofilter packed with natural manganese oxides, Related Products of isoquinoline, the main research area is pharmaceutical pollution wastewater biofilter packed manganese oxide.

Emerging organic contaminants (EOCs), consisting of pharmaceuticals, industrial/household additives, and their transformation products, have been widely detected in surface water bodies and may lead to potential ecol. risks. Installing a tertiary treatment step in sewage treatment plants (STP) is an effective method to control their contamination. In this study, a pilot-scale biofilter was set up with natural manganese oxides as carrier materials at a local STP to treat the real secondary effluent. This innovative and simple reactor was on-site operated for approx. 500 days. Some EOCs were effectively removed after adaptation, including 10,11-dihydro-10,11-dihydroxycarbamazepine (98%), gabapentin (97%), tramadol (93%), carbamazepine (91%), benzotriazole (91%), sulfamethoxazole (88%), erythromycin (86%). By contrast, the removal of others can be obtained without adaptation, including diclofenac (91%), carboxy-acyclovir (91%), iomeprol (89%), 1-hydroxybenzotriazol (87%), 4′-hydroxydiclofenac (86%), acyclovir (73%), tolyltriazole (70%). Overall, 80% of the total mass of 15 detected EOCs was eliminated from the secondary effluent. In addition, 53% of UV254 was removed from wastewater, indicating the aromatic content was damaged to a certain extent.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Advanced wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Banaschik, Robert published the artcileDegradation and intermediates of diclofenac as instructive example for decomposition of recalcitrant pharmaceuticals by hydroxyl radicals generated with pulsed corona plasma in water, SDS of cas: 117-96-4, the main research area is recalcitrant pharmaceutical diclofenac decomposition hydroxyl pulsed corona plasma wastewater; Advanced oxidation process; Hydroxyl radicals; Pharmaceutical residues diclofenac; Pulsed corona plasma; Water treatment.

Seven recalcitrant pharmaceutical residues (diclofenac, 17α-ethinylestradiol, carbamazepine, ibuprofen, trimethoprim, diazepam, diatrizoate) were decomposed by pulsed corona plasma generated directly in water. The detailed degradation pathway was investigated for diclofenac and 21 intermediates could be identified in the degradation cascade. Hydroxyl radicals have been found primarily responsible for decomposition steps. By spin trap enhanced ESR spectroscopy (EPR), ·OH-adducts and superoxide anion radical adducts were detected and could be distinguished applying BMPO as a spin trap. The increase of concentrations of adducts follows qual. the increase of hydrogen peroxide concentrations Hydrogen peroxide is eventually consumed in Fenton-like processes but the concentration is continuously increasing to about 2 mM for a plasma treatment of 70 min. Degradation of diclofenac is inversely following hydrogen peroxide concentrations No qual. differences between byproducts formed during plasma treatment or due to degradation via Fenton-induced processes were observed Findings on degradation kinetics of diclofenac provide an instructive understanding of decomposition rates for recalcitrant pharmaceuticals with respect to their chem. structure. Accordingly, conclusions can be drawn for further development and a first risk assessment of the method which can also be applied towards other AOPs that rely on the generation of hydroxyl radicals.

Journal of Hazardous Materials published new progress about Advanced wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, SDS of cas: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Garcia-Segura, Sergi published the artcileRemoval of organic contaminants from secondary effluent by anodic oxidation with a boron-doped diamond anode as tertiary treatment, Product Details of C11H9I3N2O4, the main research area is organic contaminant secondary wastewater anodic oxidation boron doped diamond; Boron-doped diamond anode; Electrochemical oxidation; Micropollutants; Secondary effluent; Tertiary water treatment.

Electrochem. advanced oxidation processes (EAOPs) have been widely studied as promising technologies to remove trace organic contaminants from water, but have rarely been used for the treatment of real waste streams. Anodic oxidation with a B-doped diamond (BDD) anode was applied for the treatment of secondary effluent from a municipal sewage treatment plant containing 29 target pharmaceuticals and pesticides. The effectiveness of the treatment was assessed from the contaminants decay, dissolved organic carbon and COD removal. The effect of applied current and pH was evaluated. Almost complete mineralization of effluent organic matter and trace contaminants can be obtained by this EAOP primarily due to the action of hydroxyl radicals formed at the BDD surface. The oxidation of Cl- in the wastewater at the BDD anode gave rise to active Cl species (Cl/HClO/ClO-), which are competitive oxidizing agents yielding chloramines and organohalogen byproducts, quantified as adsorbable organic halogen. However, further anodic oxidation of HClO/ClO- species led to the production of ClO3- and ClO4-. The formation of these species hampers the application as a single-stage tertiary treatment, but posterior cathodic reduction of chlorate and perchlorate species may reduce the risks associated to their presence in the environment.

Journal of Hazardous Materials published new progress about Advanced wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Product Details of C11H9I3N2O4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Schulze-Hennings, U. published the artcileResponse surface method for the optimisation of micropollutant removal in municipal wastewater treatment plant effluent with the UV/H2O2 advanced oxidation process, Product Details of C11H9I3N2O4, the main research area is wastewater treatment advanced oxidation hydrogen peroxide UV.

Experiments with the UV/H2O2 advanced oxidation process (AOP) were conducted to investigate the abatement of micropollutants in wastewater treatment plant effluent. The fluence and the starting concentration of H2O2 in a bench-scale batch reactor were varied according to response surface method (RSM) to examine their influence on the treatment efficiency. It was shown that the investigated AOP is very effective for the abatement of micropollutants with conversion rates typically higher than 90%. Empirical relationships between fluence, H2O2 dosage and the resulting concentration of micropollutants were established by RSM. By this means it was shown that X-ray-contrast media had been degraded only by UV light. Nevertheless, most substances were degraded by the combination of UV irradiation and H2O2. Based on RSM an optimization of multiple responses was conducted to find the minimal fluence and H2O2 dosage that are needed to reach an efficient abatement of micropollutants.

Water Science and Technology published new progress about Advanced wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Product Details of C11H9I3N2O4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Echeverria, S. published the artcilePressurized liquid extraction and liquid chromatography-tandem mass spectrometry applied to determine iodinated x-ray contrast media in sewage sludge, Recommanded Product: Diatrizoic Acid, the main research area is pressurized liquid extraction chromatog tandem mass spectrometry; iodinated Xray contrast media determination sewage sludge; Iodinated X-ray contrast media; Liquid chromatography–tandem mass spectrometry; Pressurized liquid extraction; Sewage sludge.

Pressurized liquid extraction (PLE) was applied for the 1st time to the extraction of 5 iodinated x-ray contrast media from sludge. Once optimized all PLE parameters, the extract was analyzed by liquid chromatog.-tandem mass spectrometry, being the method developed sensible enough to reach limit of quantifications (LOQs) of 25 μg/Kg (d.w.). The method was applied to the anal. of sludge from urban sewage treatment plants and although some compounds such as iopromide, diatrizoic acid and iopamidol were identified, their concentrations were lower than their LOQs.

Analytica Chimica Acta published new progress about Extraction (pressurized liquid). 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Murgolo, S. published the artcileUV and solar-based photocatalytic degradation of organic pollutants by nano-sized TiO2 grown on carbon nanotubes, Category: isoquinoline, the main research area is titanium dioxide wastewater treatment photocatalytic carbon nanotubes.

A new photocatalyst based on nano-sized TiO2 supported on single wall carbon nanotubes (SWCNTs) with tailored photocatalytic properties upon irradiation by both UV and solar simulated light was successfully employed for the degradation of a mixture of 22 organic pollutants in both ultrapure water and real secondary wastewater effluent. First-order degradation rates showed that under UV irradiation nano-sized TiO2 supported on SWCNTs is much more effective than conventional Degussa P25 for degradation of iopamidol, iopromide, diatrizoic acid, diclofenac, triclosan and sulfamethoxazole in ultrapure water. For the remaining organics the degradation rates were comparable being in most of the cases Degussa P25 slightly more effective than nano-sized TiO2 supported on SWCNTs. Reactions performed in real secondary wastewater effluent showed a general reduction of degradation rates. Specifically, such a reduction was in the range 9-87% and 9-96% for the Degussa P25 and the nano-sized TiO2 supported on SWCNTs, resp. Overall, the nano-sized TiO2 supported on SWCNTs under UV irradiation displayed comparable degradation rates with respect to convention Degussa P25. Under simulated solar irradiation the new prepared photocatalyst showed lower efficiency than Degussa P25 in ultrapure water. Such a gap was greatly reduced when the reactions were carried out in real secondary wastewater effluent. The nano-sized TiO2 supported on SWCNTs demonstrated to have the addition benefit to be easily removed from the aqueous solution by a mild centrifugation or a filtration step and, consequently, can be reused for a further photocatalytic treatment batch. Therefore, the obtained results showed that new photocatalyst based on nano-sized TiO2 supported on SWCNTs has proved to be a promising candidate to be used in a photocatalytic based-AOP and to be integrated with a biol. step for the effective removal of emerging organic pollutants.

Catalysis Today published new progress about Catalytic wastewater treatment. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem