Assessment of full-scale biological nutrient removal systems upgraded with physico-chemical processes for the removal of emerging pollutants present in wastewaters from Mexico

Estrada‐Arriaga, Edson Baltazar; Cortés-Muñoz, Juana Enriqueta; González-Herrera, Arturo; Calderón-Mólgora, César Guillermo; Rivera-Huerta, Ma. de Lourdes; Ramírez-Camperos, Esperanza; Montellano-Palacios, Leticia; Gelover-Santiago, Silvia Lucila; Pérez-Castrejón, Sara; Cardoso-Vigueros, Lina; Martín-Domínguez, Alejandra; García‐Sánchez, Liliana

doi:10.1016/j.scitotenv.2016.07.118

Cited by 96 publications

(42 citation statements)

References 57 publications

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“…The effluent from the settling tank was spiked with metformin hydrochloride (Sigma‐Aldrich, St Louis, MO, USA) and ciprofloxacin grade HPLC (Sigma‐Aldrich) with concentrations of 100 µg L –1 and 5 µg L –1 , respectively. These pharmaceutical concentrations were selected in agreement with concentrations detected in previous research . The presence of these two pharmaceuticals was not detected in the wastewater that fed the biofilter.…”

Section: Methodsmentioning

confidence: 94%

“…Concentrations from 56.8 to 129 µg L –1 in the wastewater's influent and from 0.76 to 81 µg L –1 in the wastewater's effluent were detected in wastewater treatment plants (WWTP) in Germany, Canada and Switzerland . In Mexico, the occurrence of metformin in two WWTPs was detected in concentrations within a range of 13.4 to 94.6 µg L –1 . The effect of metformin in organisms was unknown.…”

Section: Introductionmentioning

confidence: 99%

“…It is eliminated through urine (60%) without alterations. Concentrations of between 0.047 and 3.35 µg L –1 of ciprofloxacin have been reported in wastewater …”

Section: Introductionmentioning

confidence: 99%

“…4 Metformin or metformin hydrochloride (C 4 H 11 N 5 ) is one of the main pharmaceuticals found at high concentrations in wastewater. 5 Metformin is an antidiabetic drug that belongs to the family of biguanides, a group of drugs derived from the guanidine derivative Galega offininalis. 6 Metformin is one of the most used drugs in the world for the treatment of patients with type 2 diabetes mellitus.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

García‐Sánchez

Gutiérrez‐Macías

Estrada‐Arriaga

2019

J of Chemical Tech & Biotech

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BACKGROUND Several studies have demonstrated that the pharmaceuticals detected in the influents and effluents of wastewater treatment plants (WWTPs) can cause endocrine disruption and bacterial resistance on different species, in an aquatic environment. Metformin (antidiabetic drug) and ciprofloxacin (antibiotic quinolones) are compounds found at higher concentrations than many other pharmaceuticals, and thus have a disproportionately large environmental impact. This study is focused on the assessment of an aerated biofilter packed with Ficus benjamina wood chips for the simultaneous removal of metformin, ciprofloxacin, organic matter expressed as chemical oxygen demand (COD) and ammoniacal nitrogen (NH3‐N) during domestic wastewater treatment, under different superficial hydraulic loading. RESULTS The maximum removals of metformin, ciprofloxacin, COD and NH3‐N from the wastewater treated in an aerated biofilter were 94, 81, 91 and 38%, respectively, by applying a superficial hydraulic loading of 0.18 m3 m–2 d–1 [hydraulic retention time (HRT) of 7 h]. The adsorption capacity of F. benjamina wood chips on the metformin and ciprofloxacin was 0.1 and 2.03 µg gsupport material–1, respectively. CONCLUSION The maximum removal rates for metformin, ciprofloxacin, COD and NH3‐N were obtained when the aerated biofilter was operated at HRT = 7 h. The F. benjamina wood chips showed sorption properties of pharmaceuticals. According to a scanning electron microscopy image, the F. benjamina wood chips showed available pores in their entire surface, thus indicating that this organic support medium has a high potential for carrying out the sorption processes. Likewise, the surface of the wood chips showed the development of a homogeneous biofilm. © 2019 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

“…It is eliminated through urine (60%) without alterations. Concentrations of between 0.047 and 3.35 µg L –1 of ciprofloxacin have been reported in wastewater …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

García‐Sánchez

Gutiérrez‐Macías

Estrada‐Arriaga

2019

J of Chemical Tech & Biotech

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“…Therefore, a Large-scale Biological Nutrient Removal (BNR) system [64][65][66] should be installed to improve drain-water quality. However, in case of small drains, simple physical and chemical unit operations would be enough for water treatment [4].…”

Section: Parametermentioning

confidence: 99%

Modeling Approach for Water-Quality Management to Control Pollution Concentration: A Case Study of Ravi River, Punjab, Pakistan

Iqbal

Shoaib

Agwanda

et al. 2018

Water

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Abstract:One of the challenging problems of Punjab, the most populous province of Pakistan, is the surface water-quality problem of the Ravi River, which flows through the main cities of the province. At present, the overall status of water quality is very polluted, primarily due to residential and industrial wastewater directly discharged into the Ravi River through a network of drains. Due to the poor quality of the water, the river ecosystem is not favorable for the aquatic and surrounding environment. Hence, management options are proposed to reduce pollution. Therefore, the study was formulated to identify the main sources of pollution along the Ravi River and their potential impact on the course of the river channel. In addition, the study applied a numerical model WASP 8.1 (Water Quality Simulation Program) to discover the best strategy for the improvement of water quality. Through the model simulation it was found that, if the flow at headwater and link canals is increased up to 50%, along with 75% improvement in the pollution concentration of drains through wastewater-treatment facilities, the water quality of the Ravi River can be improved up to an acceptable limit of water-quality standards.

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A performance‐based indicator chemical framework for potable reuse

Thompson

Dickenson

2020

AWWA Water Science

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Many organic chemicals occur in reclaimed water at higher concentrations than in conventional drinking water sources. Some of these chemicals are known to occur at concentrations that pose chronic health risks. The toxicity or occurrence of other chemicals may not yet be known. Thus, potable reuse systems should achieve robust removal of known and unknown chemicals to ensure public health protection. Here, criteria were proposed for performance‐based indicators that could cost‐effectively verify this robust removal. The selection process was then demonstrated for a hypothetical system using ozonation, granular activated carbon, and direct ultraviolet photolysis. A set of indicators (e.g., acesulfame, meprobamate, perfluoroheptanoic acid, sucralose, iopromide, benzotriazole, and iohexol) was recommended on the basis of original and literature review data. However, the concentrations of some of these indicators are sufficient at certain locations only or decrease over time. Thus, indicators should be site‐specific, periodically reevaluated, and the topic of further research.

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Assessment of full-scale biological nutrient removal systems upgraded with physico-chemical processes for the removal of emerging pollutants present in wastewaters from Mexico

Cited by 96 publications

References 57 publications

Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

Assessment of a Ficus benjamina wood chip‐based aerated biofilter used for the removal of metformin and ciprofloxacin during domestic wastewater treatment

Modeling Approach for Water-Quality Management to Control Pollution Concentration: A Case Study of Ravi River, Punjab, Pakistan

A performance‐based indicator chemical framework for potable reuse

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