Innovative Treatment of Organic Contaminants in Reverse Osmosis Concentrate from Water Reuse: a Mini Review

Xiang, Qun; Nomura, Yuta; Fukahori, Shuji; Mizuno, Toshiaki; Tanaka, Hiroaki; Fujiwara, Taku

doi:10.1007/s40726-019-00119-2

Cited by 48 publications

(23 citation statements)

References 106 publications

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“…O questionamento a respeito da possibilidade de reinserção do esgoto no sistema de abastecimento hídrico da população (pergunta 4) foi bastante pertinente pois, a composição do esgoto doméstico é representada praticamente 100% por água. Técnicas variadas de tratamento de águas residuais (Yu, et al, 2016;Ata & Töre, 2019;Xiang, et al, 2019) garantem a reinserção de água, que mesmo não sendo própria para o consumo humano, possibilita a redução do desperdício.…”

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Crise hídrica no Distrito Federal, Brasil: uma visão acadêmica

Passos

Ribeiro

Teixeira

et al. 2020

RSD

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O objetivo desse estudo foi compreender a percepção de acadêmicos sobre a crise hídrica na região do Distrito Federal, Brasil. Para isso, foi realizado uma pesquisa descritiva exploratória com abordagem qualitativa e quantitativa. Foram aplicados questionários e participaram do estudo 167 acadêmicos. As entrevistas foram realizadas na região do Distrito Federal. Os dados foram coletados através de entrevistas estruturadas, conforme as repostas dos entrevistados. Verificou-se que na visão de 79% dos universitários, a crise hídrica no Distrito Federal está relacionada a um cenário de falta de investimentos em tecnologia e infraestrutura, assim como a falta de conservação da natureza representada pelo desmatamento do Cerrado e uso irregular do solo. A maioria dos entrevistados (87%) acredita que a universidade pode contribuir com soluções importantes para contornar a crise hídrica, e os mecanismos interdisciplinares da Educação Ambiental, a chave para um consumo consciente. A pesquisa evidencia a necessidade de informações mais disseminadas sobre impactos quanto ao uso dá água, a fim de contribuir com a descrição dos cenários de crise hídrica feita de acordo com as variações de percepções dos abordados.

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Section: -(%)unclassified

Crise hídrica no Distrito Federal, Brasil: uma visão acadêmica

Passos

Ribeiro

Teixeira

et al. 2020

RSD

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“…However, none of these methods can be said to be the most efficient because landfill leachates tend to vary in composition, volume, and migration of pollutants (Szymańska-Pulikowska and Wdowczyk 2021). Several physical, chemical and biological treatment technologies have been combined to treat landfill leachate to improve removal efficiency and reduce energy usage (Xiang et al 2019;Pan et al 2019). This method, which includes AOPs + membrane, AOPs + coagulation, AOPs + adsorption, membrane + adsorption, nitrification + denitrification + anammox, biological + AOPs, biological + coagulation, biological + adsorption, biological + membrane, and constructed wetland, is considered an emerging method for the effective remediation of landfill leachate.…”

Section: Introductionmentioning

confidence: 99%

Modelling Assisted Phytoremediation of Landfill Leachate using Surface Flow Constructed Wetland Enhanced by <i>Pistia stratiote</i> and <i>Salvinia molesta</i>

Ugya¹,

Meguellati²

2022

J. Ecol. Eng.

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The current study is aiming to expose the efficiency of surface flow constructed wetland (CW) assisted by Pistia stratiote and Salvinia molesta in the remediation of landfill leachates. A laboratory-scale surface flow constructed wetland was constructed to imitate the characteristic of a natural pond. Composite sample of leachates was collected and transported to the laboratory for further analysis and studies. The removal efficiency of phenol, pesticides, sulphate, chloride, colour, turbidity, total suspend solid (TSS), total dissolved solid (TDS), biological oxygen demand (BOD), chemical oxygen demand (COD), ammonia nitrate and heavy metals (Pb, Cr, Cu, Cd, Ni, Hg)). The removal of heavy metal ions in the CW was determined by using a phyto-system dynamic (phyto-SDA) model while the composite design (CCD) type of response surface methodology (RSM) was employed in this study for the optimization of pesticides and phenol removal from the landfill leachates by the constructed wetland (CW). The study also predicts that the deviation from the linearity between the heavy metals in the leachates and heavy metals in the sediment and in the plant tissues is influenced by the physicochemical status of the leachate and the mixed cultivation of Pistia stratiote and Salvinia molesta. The study reaffirms the role of sediments in the determination of the fate of heavy metals due to its crucial role in the bioavailability of heavy metals for uptake by P. stratiotes and S. molesta in a CW. The study also shows a positive effect of concentration and exposure time on the reduction efficiency of both pesticides and phenol. The result shows that exposure time and concentration of phenol and pesticides are useful in the optimization of the removal efficiency of pesticides and phenol.

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“…Furthermore, the elimination of these pollutants from wastewater constitutes a major challenge. Therefore, a number of technologies have been employed to remove the benzene derivatives from wastewater, such as membrane filtration, 11 advanced oxidation, 12 ozonation, 13 photocatalytic degradation, 14 electrochemical degradation, 15 phytoremediation, 16 extraction method, 17 biological methods, 18 reverse osmosis, 19 and adsorption 20 . Some of these methods and techniques present high‐removal efficiency.…”

Section: Introductionmentioning

confidence: 99%

Alternating bio‐based pyridinic copolymers modified with hydrophilic and hydrophobic spacers as sorbents of aromatic pollutants

Jlalia¹,

Chabbah

Chatti³

et al. 2021

Polymers for Advanced Techs

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The main objective of this work was to design new advanced sorbent phases, alternating copolymers, derived from isosorbide and 2,6‐difluorpyridine, to be used for the removal of aromatic organic pollutants present in water at low concentrations. Six different monomers, dianhydrohexitols isomers and bisphenol derivatives, were synthesized in order to make it possible to study their hydrophilic and hydrophobic effect on the sorption efficiency of the resulting polymeric phases. Before this study, we have confirmed the chemicals structures, molecular weights, and thermal properties of the obtained polymeric phases. Sorption results show a higher adsorption efficiency of P6 co‐poly(ether‐pyridine) based on bisphenol substituted with pyridine units, for all tested pollutants, hydrophobic and hydrophilic ones, due to its less compact structure. Two aromatic organic pollutants, p‐hydroxybenzoic acid and toluic acid, were selected as sorbates to study the adsorption characteristic, kinetics and isotherms of the co‐poly(ether pyridine) P6. Langmuir model led to a better fitting of the sorption isotherms; the sorption of toluic acid is easier than of that p‐hydroxybenzoic acid. Comparing 1/n values for benzoic acid was two time lower for P6 compared to that for biochar and for cross‐linked methacrylate resin, showing a higher efficiency.

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Innovative Treatment of Organic Contaminants in Reverse Osmosis Concentrate from Water Reuse: a Mini Review

Cited by 48 publications

References 106 publications

Crise hídrica no Distrito Federal, Brasil: uma visão acadêmica

Crise hídrica no Distrito Federal, Brasil: uma visão acadêmica

Modelling Assisted Phytoremediation of Landfill Leachate using Surface Flow Constructed Wetland Enhanced by <i>Pistia stratiote</i> and <i>Salvinia molesta</i>

Alternating bio‐based pyridinic copolymers modified with hydrophilic and hydrophobic spacers as sorbents of aromatic pollutants

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