Integration of Membrane Bioreactor and Nanofiltration for the Treatment Process of Real Hospital Wastewater in Ho Chi Minh City, Vietnam

Tran, Thanh; Nguyễn, Thanh Bình; Loc, Ho Huu; Le, Duc Dung; Lam, Tri Duc; Nguyen, Duy Chinh; Hoang, Anh Tuan; Trung, Sy; Hoang, L Khanh; Nguyen, Trinh Duy; Bạch, Long Giang

doi:10.3390/pr7030123

Cited by 26 publications

(12 citation statements)

References 28 publications

(36 reference statements)

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“…With the increasing population in the world, there is also an increasing demand for the quantity and quality of clean water and many techniques are explored to deal with this issue [1][2][3][4][5]. Membrane technology has provided a great solution for water treatment [6][7][8]. In the recent years, membrane technology has become a promising technology due to some advantages over the conventional methods such as coagulation, sedimentation, and clarification processes [9].…”

Section: Introductionmentioning

confidence: 99%

Filtration Performances of Different Polysaccharides in Microfiltration Process

et al. 2019

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Membrane technology has been widely applied for water treatment, while membrane fouling still remains a big challenge. The polysaccharides in extracellular polymeric substances (EPS) have been known as a significant type of foulant due to their high fouling propensity. However, polysaccharides have many varieties which definitely behave differently in membrane filtration. Therefore, in this study, different polysaccharides alginate sodium and xanthan gum were chosen to study their effects on membrane fouling in a wide concentration range. The results demonstrated that the filtration behaviors of alginate sodium and xanthan gum were completely different, which was due to their different molecular structures. Alginate had a small molecular weight and it was easy for alginate to penetrate membrane pores resulting in pore blocking. A series of concentrations of alginate including 5 mg/L, 10 mg/L, 20 mg/L, 30 mg/L, 40 mg/L, and 50 mg/L were examined and it was found that the permeate flux decline highly depended on the level of alginate in the feed water. While for the filtration of xanthan gum, the same concentration of xanthan gum led to more serious fouling than that observed in alginate, which might be due to its large molecule. In addition, calcium chloride was added in the solutions of both alginate and xanthan gum to examine the influence of a divalent cation on polysaccharide fouling. A “unimodal” peak can be observed in the fouling propensity caused by Ca2+ and alginate with increasing the concentration of alginate. Such a phenomenon was not found in the fouling of xanthan gum and Ca2+ led to more serious fouling for all concentrations of xanthan gum. In light of this, this study gave new insights into the fouling propensities of different polysaccharides.

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Section: Introductionmentioning

confidence: 99%

Filtration Performances of Different Polysaccharides in Microfiltration Process

et al. 2019

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“…Gestão de resíduos por: (AL-KHATIB; ELEYAN; GARFIELD, GIL MORALES et al, 2019;KWIKIRIZA et al, 2019;CHAUDHRY, 2016b;ALI et al, 2017;RAFIEE et al, 2016;SAJJADI et al, 2018;HASAN;RAHMAN, 2018;FITRIA; DAMANHURI; SALAMI, 2018; AWODELE; ADEWOYE; OPARAH, NAVAZESHKHAH et al, 2019;BHAGAWATI;NANDWANI;SINGHAL, 2015;DASH et al, 2018;TULI;GAUTAM, 2017;GUPTA, 2017;RAO et al, 2018;MICHAEL et al, 2015;PANDEY et al, 2016;CHAUDHRY, 2016a;GHAFURI;NABIZADEH, 2017;MACHADO et al, 2017;DOIPHODE, 2016;KIST et al, 2018;TRAN et al, 2019;PICCOLI et al, 2015;ALI, 2019;RAME et al, 2018; WAFULA; MUSIIME; OPORIA, 2019; IRIANTI, 2016; RODRÍGUEZ-MIRANDA;…”

Section: Resultados E Discussõesmentioning

confidence: 99%

“…GARCÍA-UBAQUE; ZAFRA-MEJÍA, TRAN et al, 2019;FARROKHI et al, 2016;ANOZIE, 2017;AHMAD et al, 2019;URIOSTE et al, 2018;MARCZAK, 2016;AUGUSTIN et al, 2016;FARZADKIA et al, 2018;JOVANOVIĆ et al, 2016;GAO et al, 2018;KRISHNAN;DEVAMANI;JAYALAKSHMI, 2015;OLIVEIRA;VIANA;CASTAÑON, 2018;PRAYITNO et al, 2018;THANH et al, 2016;SREEREMYA;RAJIV, 2017;NOGUEIRA et al, 2018;KUCHIBANDA;MAYO, 2015;YOUSEFI;AVAK ROSTAMI, 2017;NEVEU C;MATUS C, 2007;AL-MOMANI et al, 2019;PACHAURI et al, 2019;AFOLABI et al, 2018;DEWI et al, 2019;NJUANGANG;LIYANAGE;AKINTOYE, 2018;KIM et al, 2018;MUKHAIBER, 2017;JASEM;JUMAHA;GHAWI, 2018;GARIBALDI et al, 2017;NAMBURAR et al, 2018).…”

Section: Resultados E Discussõesmentioning

confidence: 99%

Resíduo Hospitalar E Seu Impacto: Uma Revisão Da Literatura

Rambo

Dutra

Cubas

2020

R. gest. sust. ambient.

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A multiplicidade e complexidade dos potenciais impactos ambientais dos resíduos hospitalares convergem para uma discussão a nível mundial. Nesse sentido, o presente estudo teve por objetivo identificar os impactos ambientais causados pelos resíduos hospitalares, por meio de uma revisão atual da literatura em periódicos científicos, nacionais e internacionais, em quatro bases de dados com as palavras-chave predeterminadas. Vários impactos ambientais puderam ser identificados, os quais podem comprometem a saúde, a segurança e o bem-estar da população, as atividades sociais e econômicas, a biota, as condições estéticas e sanitárias do meio ambiente e a qualidade dos recursos ambientais. Conclui-se que as águas residuárias hospitalares estão atualmente em evidência, sendo amplamente discutidos devido a presença de resíduos químicos, fármacos e de microrganismos patógenos resistentes.

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“…La operación de estos sistemas a altas edades de lodo puede favorecer el crecimiento paulatino de bacterias y la diversidad del consorcio bacteriano, así como el desarrollo de capacidades fisiológicas y de adaptación de las bacterias para degradar un compuesto orgánico específico (Aubenneau et al 2010, Sipma et al 2010. Hay algunos estudios en los cuales se reporta el empleo de estas tecnologías para el tratamiento de aguas residuales hospitalarias, donde se establece que los microorganismos no sólo logran adaptarse a los fármacos, sino que incluso llegan a degradarlos (Radjenović et al 2009, Aubenneau et al 2010, Sipma et al 2010, Tambosi et al 2010, Nguyen et al 2017, Svojitka et al 2017, Ouarda et al 2018, Tran et al 2019.…”

Section: Introductionunclassified

Utilización De Un Biorreactor Con Membranas Sumergidas Para El Tratamiento De Aguas Residuales Procedentes De Un Hospital Oncológico

Hernández

Peñate

Schetrite

et al. 2020

RICA

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Palabras clave: lodos activados, adaptación, aguas residuales hospitalarias, compuestos orgánicos persistentes. RESUMENLa contaminación de aguas superficiales con los denominados contaminantes emergentes (fármacos y pesticidas, entre otros) constituye uno de los grandes problemas ambientales del siglo XXI. Aunque los sistemas convencionales de lodos activados no son capaces por sí solos de llevar a cabo la descontaminación de estas aguas, recientemente la tecnología de biorreactores con membranas sumergidas (BMS) ha sido considerada para el tratamiento de estas aguas contaminadas, ya que los lodos activados que forman parte de dichos sistemas trabajan en condiciones de operación no convencionales (alta edad del lodo y alta concentración de biomasa). Esto puede favorecer tanto el crecimiento paulatino del consorcio bacteriano como el desarrollo de capacidades fisiológicas y de adaptación de los microorganismos para degradar un compuesto orgánico específico. En el presente trabajo se realizó el seguimiento del funcionamiento de un BMS instalado a la salida de un hospital oncológico, para lo cual se determinaron la demanda química de oxígeno y el nitrógeno en el residual de entrada, en el sobrenadante y en el permeado del BMS. Finalmente se estimó el coeficiente de rendimiento heterótrofo mediante pruebas respirométricas, observándose el fenómeno de almacenamiento de sustrato como respuesta de los microorganismos para el desarrollo de capacidades fisiológicas de adaptación. En general, los resultados obtenidos muestran la capacidad de adaptación de los microorganismos a la presencia de fármacos procedentes de un hospital oncológico, así como la eficiencia de estos sistemas para el tratamiento de aguas residuales hospitalarias.

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Integration of Membrane Bioreactor and Nanofiltration for the Treatment Process of Real Hospital Wastewater in Ho Chi Minh City, Vietnam

Cited by 26 publications

References 28 publications

Filtration Performances of Different Polysaccharides in Microfiltration Process

Filtration Performances of Different Polysaccharides in Microfiltration Process

Resíduo Hospitalar E Seu Impacto: Uma Revisão Da Literatura

Utilización De Un Biorreactor Con Membranas Sumergidas Para El Tratamiento De Aguas Residuales Procedentes De Un Hospital Oncológico

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