We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Influência De Microplástico Na Remoção De Turbidez Utilizando Flotação Por Ar Dissolvido E Quitosana Como Coagulante Auxiliar
AI summary Read the abstract
Researchers evaluated how polyethylene microplastics affect turbidity removal efficiency in dissolved air flotation water treatment, finding that microplastic presence reduced performance, while chitosan used as an auxiliary coagulant with aluminum sulfate achieved 88.06% turbidity removal at pH 7.0.
RESUMOOs microplsticos (MP) so contaminantes emergentes em ambientes aquticos e podem comprometer a eficincia dos processos de tratamento de gua ao interferirem na agregao e remoo de partculas.Este estudo teve como objetivo avaliar a influncia de MP de polietileno na remoo de turbidez por meio do processo de flotao por ar dissolvido (FAD), utilizando quitosana como coagulante auxiliar ao sulfato de alumnio.Para investigar essa influncia, foram conduzidos ensaios experimentais variando o pH, a concentrao do coagulante e a presena de MP.Os resultados indicaram que a maior eficincia na remoo de turbidez (88,06%) foi alcanada em pH 7,0 com 10 mg/L de Al(SO) e 0,8 mg/L de quitosana.A presena de MP reduziu a eficincia do processo, evidenciando seu impacto negativo na clarificao da gua.Alm disso, verificou-se que o aumento da concentrao do coagulante inorgnico no resultou em um ganho proporcional de eficincia e, em pH 5,0, levou reduo da remoo de turbidez devido estabilizao da suspenso por repulses eletrostticas.A adio de quitosana mostrou-se eficaz na melhoria da remoo de turbidez em ambas as condies de pH, destacando seu potencial como coagulante auxiliar.Os achados deste estudo ressaltam a necessidade de estratgias para minimizar a presena de MP nos sistemas de tratamento de gua, visando otimizar a eficincia dos processos de clarificao e garantir a qualidade da gua tratada.
More Papers Like This
Remoção do microplástico por meio de flotação por ar dissolvido
AI summary Read the abstract
Researchers evaluated dissolved air flotation (DAF) combined with coagulation and flocculation for removing four types of microplastics (HDPE, PE, PET, PS) at bench scale, finding removal efficiencies ranging from 66–91% depending on polymer type; PET achieved the highest removal (91.3%) with aluminum sulfate coagulation alone, while PS was the most difficult to remove due to its hydrophobicity.
Enhanced removal of microplastic fibres using aluminium and chitosan-based coagulants assisted with microbubble technology
AI summary Read the abstract
Researchers tested the removal of microplastic fibers from water using aluminium-based and chitosan-based coagulants combined with sedimentation and microbubble flotation techniques. The aluminium coagulant achieved the highest removal rate of 88% through sedimentation in humic acid-containing water, while chitosan achieved 78% removal using microbubble flotation at a lower dosage. The findings suggest that the natural coagulant chitosan has potential as an effective and greener alternative for microplastic fiber removal in water treatment.
Coagulative removal of microplastics from aqueous matrices: Recent progresses and future perspectives
AI summary Read the abstract
This review examines how coagulation, a common water treatment technique, can be used to remove microplastics from water. Researchers compared the effectiveness of different coagulants, finding that natural options like chitosan and protein-based coagulants achieved removal rates above 90 percent. The study highlights the promise of natural coagulants as a more sustainable approach to tackling microplastic contamination in water treatment systems.
Determining the Impact of a Flocculant or Surfactant on Microplastic Recovery
AI summary Read the abstract
Preliminary investigation found that common flocculants and surfactants like aluminum sulfate and Tween 80 affect the recovery rate of microplastics from water samples during separation protocols. Understanding how these chemical treatments interact with microplastics is important for developing effective water treatment strategies to remove these particles from drinking water supplies.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.