Spectroscopic studies of the progress of humification processes in humic acid extracted from sewage sludge

Polak, Justyna; Sułkowski, Wieslaw W.; Bartoszek, M.; Papież, W.

doi:10.1016/j.molstruc.2004.12.054

Cited by 51 publications

(37 citation statements)

References 21 publications

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“…Thus, to reduce this complexity and to improve the resolution in NMR and other techniques, several methodologies that include extraction, conversions and ultrafiltration, among others have been used. [60,67,[70][71][72] Figure 3 shows the 1 H NMR spectrum of the methanolic-extracted portion of the sludge from Sao Carlos, SP, Brazil. The spectrum is highly complex and can be divided into three different resonance regions: (i) -aliphatics, such as carbinolic hydrogen, esters and allylic residues that range from 0.2 to 3.0 ppm; (ii) -1 H methylene groups bound to N or O and olefinic hydrogens from 3.0 to 6.0 ppm; and (iii) -aromatic region from 6.0 to 9.0 ppm.…”

Section: Sample Collection Preparation and Preservationmentioning

confidence: 99%

“…[81] The quantification of wastewater is used mainly to estimate the degradation of the organic matter of the sludge based on the integral areas of the 13 C NMR resonances. [63,60,[86][87][88] Lewis and coworkers (2011) [89] used high-performance size exclusion chromatography and solid-state 13 C NMR to investigate a sulfite pulp and paper mill WWTP that used coagulation followed by aerated stabilization basins (ASBs). The selective removal of aromatic and alkyl groups during the coagulation process and the additional removal of aromatic carbon during ASB treatment were shown.…”

Section: E G Alves Filho L M Alexandre E Silva and A G Ferreirmentioning

confidence: 99%

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Advancements in waste water characterization through NMR spectroscopy: review

Filho

Silva

Ferreira

2014

Magnetic Reson in Chemistry

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There are numerous organic pollutants that lead to several types of ecosystem damage and threaten human health. Wastewater treatment plants are responsible for the removal of natural and anthropogenic pollutants from the sewage, and because of this function, they play an important role in the protection of human health and the environment. Nuclear magnetic resonance (NMR) has proven to be a valuable analytical tool as a result of its versatility in characterizing both overall chemical composition as well as individual species in a wide range of mixtures. In addition, NMR can provide physical information (rigidity, dynamics, etc.) as well as permit in depth quantification. Hyphenation with other techniques such as liquid chromatography, solid phase extraction and mass spectrometry creates unprecedented capabilities for the identification of novel and unknown chemical species. Thus, NMR is widely used in the study of different components of wastewater, such as complex organic matter (fulvic and humic acids), sludge and wastewater. This review article summarizes the NMR spectroscopy methods applied in studies of organic pollutants from wastewater to provide an exhaustive review of the literature as well as a guide for readers interested in this topic.

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Section: Sample Collection Preparation and Preservationmentioning

confidence: 99%

Section: E G Alves Filho L M Alexandre E Silva and A G Ferreirmentioning

confidence: 99%

Advancements in waste water characterization through NMR spectroscopy: review

Filho

Silva

Ferreira

2014

Magnetic Reson in Chemistry

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“…Nos últimos anos, a aplicação de espectroscopias como: ressonância magnética nuclear, ressonância paramagnética eletrônica, fl uorescên-cia de luz UV-visível e fl uorescência induzida por laser vêm demonstrando grande potencial para auxiliar no entendimento dos processos relacionados com a dinâmica da matéria orgânica [5][6][7][8][9]. Contudo, a composição mineralógica dos solos tropicais pode difi cultar as análises por ressonân-cia magnética nuclear de 13 C no estado sólido e por ressonância paramagnética eletrônica.…”

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Viabilidade do emprego de ácido fluorídrico 10% para a remoção de íons paramagnéticos em amostras de solos e suas respectivas frações físicas

et al. 2010

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Treated sewage effluent utilization for irrigation represents an antique, popularand attractive alternative to the common disposal of effluent to watercourses and includes three main purposes: effluent complementary treatment, water and nutrient source to the soil-plant system. However, because in Brazil no experiences in wastewater recycling exists consequently few scientific studies were carried out despite the importance of the subject. The present study aimed to evaluate by chemical and spectroscopy techniques the soil organic matter from soils irrigated with treated sewage effluent. Five treatments were evaluated: TSI (control) - irrigation with potable water and addition of the nitrogen as mineral fertilizer; T100, T125, T150 and T200 - irrigation with treated sewage sludge effluent and addition of the nitrogen as mineral fertilizer. The results obtained shown changes in the carbon contend and humification degree for the soils irrigated with treated sewage sludge effluent due to the increase activity of the decomposition of organic matter, stimulated by the increase of water in the soil.

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“…Nos últimos anos, a aplicação de técnicas espectroscópicas como: ressonância magnética nuclear, ressonância paramagnética eletrônica, fluorescência de luz UV-visível e fluorescência induzida por laser vem demonstrando grande potencial para auxiliar no entendimento dos processos relacionados com a dinâmica da matéria orgânica [4,5,6,7,8,9]. Contudo, a composição mineralógica dos solos tropicais (alta percentual de óxidos de ferro) pode dificultar as análises por ressonância magnética nuclear de 13 C no estado sólido e por ressonância paramagnética eletrônica [10].…”

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Caracterização química e espectroscópica de solos irrigados com efluente de esgoto tratado

et al. 2009

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IntroduçãoEm todo o mundo, devido a escassez de água, existe uma crescente competição pelo uso entre diversos setores da sociedade. O consumo na agricultura é grande em relação a outros tipos de utilização, podendo afetar a disponibilidade deste recurso para a população urbana se este não for bem administrado. No Brasil, a agricultura consome cerca de 61% (v/v) Resumo: A utilização de efluentes de esgoto tratado na irrigação, ao invés de realizar a disposição deste subproduto nos cursos d'água tem sido uma alternativa antiga, popular e atrativa, com triplo propósito: tratamento complementar do efluente, fonte de água e de nutrientes ao sistema solo-planta. Entretanto, no Brasil, a reciclagem de águas residuárias, particularmente, do efluente de esgoto tratado, não é uma prá-tica comum e, conseqüentemente, trabalhos científicos relacionados a este tema são incipientes. Com a finalidade de fornecer mais informações para subsidiar as pesquisas nesta área, este trabalho visa avaliar, por meio de técnicas química e espectroscópica, o processo de humificação na matéria orgânica dos solos irrigados com efluente de esgoto tratado em experimentos de campo. Os cinco tratamentos estudados foram: TSI (controle) -irrigado com água potável e adição de nitrogênio via fertilizante mineral, T100, T125, T150 e T200 irrigado com efluente de esgoto tratado e adição de nitrogênio via fertilizante mineral. Os resultados obtidos mostram variações no teor de carbono e no grau de humificação, para os solos irrigados com efluente de esgoto tratado, decorrentes do aumento da atividade de decomposição da maté-ria orgânica, estimulada pelo aumento da quantidade de água no solo.

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Spectroscopic studies of the progress of humification processes in humic acid extracted from sewage sludge

Cited by 51 publications

References 21 publications

Advancements in waste water characterization through NMR spectroscopy: review

Advancements in waste water characterization through NMR spectroscopy: review

Viabilidade do emprego de ácido fluorídrico 10% para a remoção de íons paramagnéticos em amostras de solos e suas respectivas frações físicas

Caracterização química e espectroscópica de solos irrigados com efluente de esgoto tratado

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