Degradation of roxarsone in a sulfate radical mediated oxidation process and formation of polynitrated by-products

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 82040-82048 ◽  
Author(s):  
Yuefei Ji ◽  
Yuanyuan Shi ◽  
Deyang Kong ◽  
Junhe Lu
Keyword(s):  
Oxidation Process ◽  
Poultry Litter ◽  
Land Application ◽  
Sulfate Radical ◽  
Poultry Industry ◽  
By Products ◽  
Mediated Oxidation

Organoarsenicals such as roxarsone (ROX) are extensively utilized in the poultry industry, and land application of poultry litter is an important route by which arsenics are introduced into the environment.

Coexposure Degradation of Purine Derivatives in the Sulfate Radical-Mediated Oxidation Process

2019 ◽  
Vol 54 (2) ◽  
pp. 1186-1195 ◽  
Author(s):  
Shuangshuang Cheng ◽  
Yu Lei ◽  
Xin Lei ◽  
Yanheng Pan ◽  
Yunho Lee ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Sulfate Radical ◽  
Purine Derivatives ◽  
Mediated Oxidation

scholarly journals Fate of Diclofenac and Its Transformation and Inorganic By-Products in Different Water Matrices during Electrochemical Advanced Oxidation Process Using a Boron-Doped Diamond Electrode

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1686 ◽  
Author(s):  
Carolin Heim ◽  
Mohamad Rajab ◽  
Giorgia Greco ◽  
Sylvia Grosse ◽  
Jörg E. Drewes ◽  
...  
Keyword(s):  
Current Density ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Early Stage ◽  
Advanced Oxidation ◽  
Target Compound ◽  
Duration Of Treatment ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
By Products

The focus of this study was to investigate the efficacy of applying boron-doped diamond (BDD) electrodes in an electrochemical advanced oxidation process, for the removal of the target compound diclofenac (DCF) in different water matrices. The reduction of DCF, and at the same time the formation of transformation products (TPs) and inorganic by-products, was investigated as a function of electrode settings and the duration of treatment. Kinetic assessments of DCF and possible TPs derived from data from the literature were performed, based on a serial chromatographic separation with reversed-phase liquid chromatographyfollowed by hydophilic interaction liquid chromatography (RPLC-HILIC system) coupled to ESI-TOF mass spectrometry. The application of the BDD electrode resulted in the complete removal of DCF in deionized water, drinking water and wastewater effluents spiked with DCF. As a function of the applied current density, a variety of TPs appeared, including early stage products, structures after ring opening and highly oxidized small molecules. Both the complexity of the water matrix and the electrode settings had a noticeable influence on the treatment process’s efficacy. In order to achieve effective removal of the target compound under economic conditions, and at the same time minimize by-product formation, it is recommended to operate the electrode at a moderate current density and reduce the extent of the treatment.

Isolation of Salmonellae from Rendered By-Products and Poultry Litter Cultured in Enrichment Media Incubated at Elevated Temperatures

1970 ◽  
Vol 14 (2) ◽  
pp. 248 ◽  
Author(s):  
C. F. Smyser ◽  
G. H. Snoeyenbos ◽  
Barbara McKie
Keyword(s):  
Elevated Temperatures ◽  
Poultry Litter ◽  
By Products

scholarly journals Fertilizer Efficacy of Poultry Litter Ash Blended with Lime or Gypsum as Fillers

Environments ◽  
2019 ◽  
Vol 6 (5) ◽  
pp. 50 ◽  
Author(s):  
Philip J. Bauer ◽  
Ariel A. Szogi ◽  
Paul D. Shumaker
Keyword(s):  
Power Plants ◽  
Lolium Multiflorum ◽  
Poultry Litter ◽  
Land Application ◽  
Flue Gas Desulfurization ◽  
Filler Materials ◽  
Fertilizer Value ◽  
Extractable P ◽  
K Concentration ◽  
Poultry Litter Ash

Ash from power plants that incinerate poultry litter has fertilizer value, but research is lacking on optimal land application methodologies. Experiments were conducted to evaluate calcitic lime and flue gas desulfurization gypsum (FGDG) as potential fillers for poultry litter ash land applications. The ash had phosphorus (P) and potassium (K) contents of 68 and 59 g kg−1, respectively. Soil extractable P and K were measured in an incubation pot study, comparing calcitic lime to FGDG at filler/ash ratios of 1:3, 1:2, 1:1, 2:1, and 3:1. After one month, soils were sampled and annual ryegrass (Lolium multiflorum Lam.) seeds were planted to investigate how plant growth and uptake of P and K were influenced by the fillers. Application of ash alone or with fillers increased soil extractable P and K levels above unamended controls by 100% and 70%, respectively. Filler materials did not affect biomass or P and K concentration of the ryegrass. A field study with a commercial spinner disc fertilizer applicator was conducted to compare application uniformity of ash alone and filler/ash blends. Overall, test data suggested that uniform distribution of ash alone or with fillers is feasible in field applications using a commercial fertilizer spreader.

scholarly journals Elucidation and Characterization of New Chlorinated By-Products after Electrochemical Degradation of Hydrochlorothiazide Using Graphite–Poly Vinyl Chloride Electrode

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 540
Author(s):  
Zainab Mussa ◽  
Fouad Al-Qaim ◽  
Ali Yuzir ◽  
Hirofumi Hara ◽  
Shamila Azman ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Treatment Process ◽  
Oxidation Process ◽  
Electrochemical Treatment ◽  
Electrochemical Process ◽  
Experimental Conditions ◽  
E Coli ◽  
Flight Mass Spectrometry ◽  
Negative Ionization ◽  
By Products

This paper describes an electrochemical treatment process of hydrochlorothiazide (HDZ) under different conditions such as initial concentration, sodium chloride and applied voltage. In this present study, HDZ was treated by electrochemical oxidation process using graphite-PVC composite electrode as anode and Platinum (Pt) as cathode. All results were analyzed using liquid chromatography-time of flight/mass spectrometry (LC-TOF/MS). It was found that at high applied voltages, and high amounts of NaCl, the electrochemical treatment process was more efficient. The removal% of HDZ was 92% at 5 V after 60 min. From the obtained results, the electrochemical oxidation process of HDZ followed pseudo first order with rate constant values ranged between 0.0009 and 0.0502 min−1, depending on the experimental conditions. Energy consumption was also considered in this study, it was ranged between 0.9058 and 5.56 Wh/mg using 0.5, 0.3 and 0.1 g NaCl within interval times of (10, 20, 30, 40, 50, 60, 70, and 80 min). Five chlorinated and one non-chlorinated by-products were formed and analyzed in negative ionization (NI) mode during the electrochemical process. Due to the strong oxidizing potential of the chlorine (Cl2) and hypochlorite ion (ClO−), HDZ and its by-products were removed after 140 min. Furthermore, a novel synthesis of chlorothiaizde as one of the new by-products was reported in this present study. Toxicity was impacted by the formation of the by-products, especially at 20 min. The inhibition percentage (I%) of E. coli bacteria was decreased to be the lowest value after 140 min.

Degradation of carbamazepine by UV/chlorine advanced oxidation process and formation of disinfection by-products

2016 ◽  
Vol 23 (16) ◽  
pp. 16448-16455 ◽  
Author(s):  
Shiqing Zhou ◽  
Ying Xia ◽  
Ting Li ◽  
Tian Yao ◽  
Zhou Shi ◽  
...  
Keyword(s):  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
By Products
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