Removal of pollutants and pathogens by a simplified treatment scheme for municipal wastewater reuse in agriculture

Sanctis, Marco De; Moro, Guido Del; Chimienti, Silvia; Ritelli, Pierangela; Levantesi, Caterina; Iaconi, Claudio Di

doi:10.1016/j.scitotenv.2016.12.002

Cited by 56 publications

(30 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Contribuyendo de manera efectiva a la conservación del recurso hídrico y cuidado del medio ambiente. Por ello, Sanctisa, Moroa, Chimientia, Ritellia, Levantesib y Iaconia [28] proporcionaron un esquema simplificado para el tratamiento y reutilización agrícola de ARD en Italia; basado en lotes secuenciales de sistemas lagunares (SBBGRs); logrando remociones de 90% de SST y DQO, y el 80% y 60% de NT y PT respectivamente. Este sistema también es eficaz en la eliminación de microorganismos (C. perfringens o E. coli) y la calidad del efluente se muestra compatible con los criterios de calidad del agua de la Organización Mundial de la Salud (OMS) para diferentes formas de reúso [29].…”

Section: Sistemas De Aguas Residuales En Colombiaunclassified

Análisis de los principales sistemas biológicos de tratamiento de aguas residuales domésticas en Colombia

Vargas

Calderón

Velásquez

et al. 2020

Ingeniare. Rev. chil. ing.

View full text Add to dashboard Cite

Algunos países en vía de desarrollo no cuentan con sistemas eficientes de tratamiento de aguas residuales; ya sea por problemas económicos, o debido al limitado conocimiento sobre alternativas viables de bajo costo, a pesar de ser una herramienta para mejorar la calidad del agua. Este documento presenta una revisión bibliográfica mediante la cual integra, examina y analiza los diferentes sistemas de tratamiento de agua residual doméstica empleados en Colombia; con el objeto de identificar la evolución que han tenido estas tecnologías y sus posibles alternativas; identificando sus procesos de remoción, costos y la factibilidad en cuanto a la operación. Dentro del análisis, se evidencia que, en Colombia, los tratamientos más usados son los lodos activados, lagunas de estabilización y humedales artificiales. La mayoría de estos tratamientos biológicos alcanzan un 80% de remoción de DBO 5 , DQO y SST. Cuando se emplean en conjunto, obtienen eficiencias porcentuales mayores al 90%, resaltando la viabilidad económica de los procesos biológicos, los cuales muestran una mejor rentabilidad económica, funcional y operacional. Sumado a esto, se muestra la necesidad de mejorar los sistemas de tratamiento de aguas residuales existentes en el país, a fin de minimizar la contaminación en aguas superficiales y subterráneas; ya que solo se está interviniendo alrededor del 30% de las aguas residuales totales, generadas o recibidas por los sistemas de alcantarillado. Palabras clave: Aguas residuales domésticas: tratamiento biológico; eficiencia de remoción.

show abstract

Section: Sistemas De Aguas Residuales En Colombiaunclassified

Análisis de los principales sistemas biológicos de tratamiento de aguas residuales domésticas en Colombia

Vargas

Calderón

Velásquez

et al. 2020

Ingeniare. Rev. chil. ing.

View full text Add to dashboard Cite

show abstract

“…Currently, the most widely used process to remove residual TSS (total suspended solids) is treated effluent filtration [24,25]. The main mechanisms contributing to the removal of suspended solids in sand filters are cast [22,26]. This has been identified as the major operating mechanism for the removal of suspended solids during filtration of secondary effluent from processes and biological treatments.…”

Section: Introductionmentioning

confidence: 99%

Pretreatment of Real Wastewater from the Chocolate Manufacturing Industry through an Integrated Process of Electrocoagulation and Sand Filtration

García-Morales

Juárez

Martínez-Gallegos

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

The purpose of this study was to evaluate the efficiency of removal of suspended solids in terms of turbidity, color, and chemical oxygen demand (COD) when integrating the electrocoagulation process using aluminum sacrificial anodes and the sand filtration process as a pretreatment of wastewater from the chocolate manufacturing plant in Toluca, México. Wastewater from the chocolate manufacturing industry used in this study is classified as nontoxic, but is characterized as having a high content of color (5952 ± 76 Pt-Co), turbidity (1648 ± 49 FAU), and COD (3608 ± 250 mg/L). Therefore, enhanced performance could be achieved by combining pretreatment techniques to increase the efficiencies of the physical, chemical, and biological treatments. In the integrated process, there was a turbidity reduction of 96.1 ± 0.2% and an increase in dissolved oxygen from 3.8 ± 0.05 mg/L (inlet sand filtration) to 6.05 ± 0.03 mg/L (outlet sand filtration) after 120 min of treatment. These results indicate good water quality necessary for all forms of elemental life. Color and COD removals were 98.2 ± 0.2% and 39.02 ± 2.2%, respectively, during the electrocoagulation process (0.2915 mA/cm2 current density and 120 min of treatment). The proposed integrated process could be an attractive alternative of pretreatment of real wastewater to increase water quality of conventional treatments.

show abstract

“…The use of wastewater in agriculture is being increasingly proposed, since it could have agronomic and economic benefits [3]. On one hand, irrigation with wastewater may increase the available water supply and so allow preserving better quality supplies for other uses [4]. On the other hand, the fertilizer content of many kinds of wastewater can be an advantage for agricultural use [5].…”

Section: Introductionmentioning

confidence: 99%

Integration of Membrane Distillation with solar photo-Fenton for purification of water contaminated with Bacillus sp. and Clostridium sp. spores

Ruiz-Aguirre

Polo-López

Fernández‐Ibáñez

et al. 2017

Science of The Total Environment

View full text Add to dashboard Cite

Although Membrane Distillation (MD) has been extensively studied for desalination, it has other applications like removing all kinds of solutes from water and concentrating non-volatile substances. MD offers the possibility of producing a clean stream while concentrating valuable compounds from waste streams towards their recovery, or emerging contaminants and pathogens present in wastewater in order to facilitate their chemical elimination. This paper analyses the elimination of bacterial spores from contaminated water with MD and the role of MD in the subsequent treatment of the concentrate with photo-Fenton process. The experiments were performed at Plataforma Solar de Almería (PSA) using a plate and frame bench module with a Permeate Gap Membrane Distillation (PGMD) configuration. Tests were done for two different kinds of spores in two different water matrixes: distilled water with 3.5wt% of sea salts contaminated with spores of Bacillus subtilis (B. subtilis) and wastewater after a secondary treatment and still contaminated with Clostridium sp. spores. An analysis of the permeate was performed in all cases to determine its purity, as well as the concentrated stream and its further treatment in order to assess the benefits of using MD. Results showed a permeate free of spores in all the cases, demonstrating the viability of MD to treat biological contaminated wastewater for further use in agriculture. Moreover, the results obtained after treating the concentrate with photo-Fenton showed a shorter treatment time for the reduction of the spore concentration in the water than that when only photo-Fenton was used.

show abstract

Removal of pollutants and pathogens by a simplified treatment scheme for municipal wastewater reuse in agriculture

Cited by 56 publications

References 33 publications

Análisis de los principales sistemas biológicos de tratamiento de aguas residuales domésticas en Colombia

Análisis de los principales sistemas biológicos de tratamiento de aguas residuales domésticas en Colombia

Pretreatment of Real Wastewater from the Chocolate Manufacturing Industry through an Integrated Process of Electrocoagulation and Sand Filtration

Integration of Membrane Distillation with solar photo-Fenton for purification of water contaminated with Bacillus sp. and Clostridium sp. spores

Contact Info

Product

Resources

About