Enelton Fagnani

Enelton Fagnani
University of Campinas | UNICAMP · School of Technology (Faculdade de Tecnologia - FT)

PhD

About

36
Publications
9,783
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215
Citations
Citations since 2017
17 Research Items
152 Citations
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Introduction
Enelton Fagnani was graduated in Chemistry at the IQ/CAr UNESP - Brazil (1999); Civil Engineering PhD degree (specialization in Sanitation and Environment) at UNICAMP - Brazil (2009). Post Doctorate at the IDAEA-CSIC) - Barcelona, Spain (2019). He has been Assistant Professor in the School of Technology (UNICAMP, Brazil) since 2014, and has interest in AOPs, sediment assessment, GC-MS and LC-HRMS in the study of contaminants of emerging concern (CECs)
Additional affiliations
May 2014 - January 2017
University of Campinas
Position
  • Professor (Assistant)
May 2014 - January 2017
University of Campinas
Position
  • Professor (Assistant)

Publications

Publications (36)
Article
Since conventional biological wastewater treatments are not admittedly effective to convert pharmaceutical active compounds (PhACs) into non-toxic products, natural abiotic mechanisms such as solar photolysis arises as an important degradation process, especially for halogenated molecules. In the present work, photolysis simulation was carried out...
Article
Full-text available
Organophosphate esters (OPEs) are substances globally used as flame retardants and plasticizers that have been detected in all environmental compartments. This study aimed to evaluate the occurrence and sources of ten OPEs in the Piracicaba River Basin (Brazil). Twelve sampling sites were selected in five rivers with different pollution sources; si...
Article
Full-text available
Published literature describes the formation of the Fe (II)–phenanthroline complex (ferroin) as a stop way for Fenton processes, reducing radical yield. By contrast, this study presents evidence that ferroin can be activated by UVA in mildly acidic media in a photo-Fenton-like process. Because ferroin is the main waste from total iron determination...
Article
Diclofenac (DCF) belongs to the class of nonsteroidal anti-inflammatory drugs, which is one of the most consumed by population and detected in raw sewage. Several studies have reported variable removal rates by biodegradation of diclofenac in wastewater treatment plants (WWTPs). This study deals with the evaluation of the biodegradation of DCF by a...
Article
Full-text available
O efluente produzido em abatedouros apresenta elevadas cargas orgânicas e concentração de nutrientes, sendo predominantemente tratado por sistemas de lagoas anaeróbias e facultativas em série (sistema australiano). Verificam-se altas taxas de remoção de demanda bioquímica de oxigênio (em torno de 70%), com baixa geração de lodo e potencial reaprove...
Article
Organophosphate esters used as flame retardants and plasticizers are ubiquitous contaminants in surface waters. Many studies indicate that these compounds are neurotoxicants, endocrine disruptors and may affect reproduction and development of aquatic organisms. Thus, analytical methods that allow accurate quantification of these contaminants at env...
Article
Full-text available
The management of environmental analysis waste through Fenton-based advanced oxidation processes is proposed. Degradation of dyes as methylene blue (MB) and methyl red (MR) is obtained in presence of iron(II)-complex and hydrogen peroxide at mildly pH conditions with no formation of sludge. The role of temperature and UV-A are discussed.
Article
This paper presents the profits and disadvantages of the chemometrics approach instead of the one-factor-at-a-time (OFAT) coagulation diagram approach for tropical water physicochemical treatment. Central composite design associate to response surface methodology (CCD-RSM) are used to find the real best conditions for coagulant dosage and pH aiming...
Article
Full-text available
This paper compares the dichromate method with the photoelectrochemical method (PeCOD), with regards to the influence of chloride and turbidity with chemical oxygen demand (COD) determination. Whereas the upper limits of chloride concentration are well established for both techniques, the influence of turbidity and the combined interference of unde...
Article
The objective of this study was to optimize UV/H2O2 and ozonation systems by means of experimental design using as response the efficiency of the operational conditions to remove methylene blue dye. Two classes of experimental planning were used, the Doehlert matrix and the central composite design. The most important variables for each process wer...
Article
Waste management in higher education institutions is generally a complex and multidisciplinary activity, which demands experienced managers. This work discusses the implementation of a Waste Management Plan based on Continuous Improvement Cycle at higher education institutions in developing countries. Proposed method is simpler than other iterative...
Conference Paper
Chemical analyzes are an essential tool to assist Environmental Engineering in its diagnostics and assessments. Green Chemistry is dedicated to making analytical methods more efficient and less impacting to the environment and society, minimizing costs with inputs and time, generating less toxic waste and assuring the analyst's physical integrity....
Article
Full-text available
The degradation of two compounds of pharmaceutical interest, caffeine (CAF) and methylene blue (MB), was studied using physical process (photolysis-UV254nm), chemical process (peroxidation-H2O2) and advanced oxidation processes: photoperoxidation (UV/H2O2), Fenton´s reagent (Fe II/H2O2), photo-Fenton (Fe II/H2O2/UV) and heterogeneous photocatalysis...
Article
Full-text available
Many developing countries have regions of high demographic density, where untreated residuary waters from different sources are often discharged into rivers, streams and other water bodies. This paper discusses the reducing action of organic matter of anthropic origin on the mercury redox cycle in the Jundiaí River impacted by discharged wastes, an...
Article
Full-text available
Recebido em 26/8/11; aceito em 21/10/11; publicado na web em 4/1/12 QUALITY CONTROL IN POTENTIOMETRIC DETERMINATION OF ACID VOLATILE SULFIDES (AVS) USING STANDARD ADDITION. This paper presents a quality assurance and quality control protocol in order to ensure the reliability of analytical results for the determination of acid volatile sulfides in...
Article
Full-text available
This paper discusses the historical and methodological fundaments of the dynamics and quantification of acid volatile sulfides (AVS) and simultaneously extracted metals (SEM) in aquatic sediments. It also discusses the SEM/AVS relationship, which involves several controversial aspects such as sulfide stability, sulfide-organic matter interaction, a...
Article
Full-text available
Recebido em 1/9/10; aceito em 16/5/11; publicado na web em 29/6/11 ACID VOLATILE SULFIDES AND SIMULTANEOUSLY EXTRACTED METALS IN THE ASSESSMENT OF FRESHWATER SEDIMENTS. This paper discusses the historical and methodological fundaments of the dynamics and quantification of acid volatile sulfides (AVS) and simultaneously extracted metals (SEM) in aqu...
Article
This paper proposes a methodology for spectrophotometric determination of hexamethylenetetramine (HMT) by using chromotropic acid in a phosphoric acid media employing a domestic microwave oven as a source of heating. The reddish-purple soluble product is quantitatively formed after 30 s of irradiation and obeys the Beer´s law in the range between 0...
Article
Full-text available
This paper proposes a methodology for spectrophotometric determination of hexamethylenetetramine (HMT) by using chromotropic acid in a phosphoric acid media employing a domestic microwave oven as a source of heating. The reddish-purple soluble product is quantitatively formed after 30 s of irradiation and obeys the Beer´s law in the range between 0...
Article
Full-text available
The procedure for formaldehyde analysis recommended by the National Institute for Occupational Safety and Health (NIOSH) is the Chromotropic acid spectrophotometric method, which is the one that uses concentrated sulphuric acid. In the present study the oxidation step associated with the aforementioned method for formaldehyde determination was inve...
Article
Full-text available
O presente artigo descreve uma metodologia espectrofotométrica para a análise de paraformaldeído presente em amostras de saneantes comerciais e industriais, utilizando-se ácido cromotrópico (ACT), ácido clorídrico concentrado e peróxido de hidrogênio, produzindo um composto púrpura - avermelhado (lambda max = 575 nm). A lei de Beer é obedecida numa...
Article
Full-text available
This paper describes a spectrophotometric method for the paraformaldehyde analysis in industrial and commercial disinfectant samples using chromotropic acid, concentrated hydrochloridric acid and hydrogen peroxide. The reaction produces a violet-red compound (lambda(max) = 575 nm). The method permits the determination of paraformaldehyde over a con...
Article
Full-text available
No presente trabalho desenvolveu-se metodologia simplificada para análise de hexametilenotetramina em medicamentos que apresentam corantes em sua formulação (azul de metileno, Ponceau Red, Bordeaux Red, acriflavina) seguida por titulação ácido-base usando indicador. O método foi aplicado com sucesso a amostras comerciais e os resultados obtidos for...
Article
Full-text available
This paper describes the construction of an electrode of second kind, Pt|Hg|Hg2(salic)2|graphite, sensitive to salicylate. This electrode responds to the salicylate ion with a sensitivity of 58.66 mV/decade over the range 6.0E-4 - 1.0E-1 mol/l at pH 6.0 and ionic strength of 0.500-3.00 mol/l, adjusted with NaClO4. The electrode is easily constructe...

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