Relationship between the removal of organic matter and the production of methane in subsurface flow constructed wetlands designed for wastewater treatment

López, Daniela; Fuenzalida, D.; Vera-Puerto, Ismael; Rojas, Karen; Vidal, Gladys

doi:10.1016/j.ecoleng.2015.06.037

Cited by 42 publications

(24 citation statements)

References 42 publications

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“…The in situ parameters, pH, ORP and temperature, were measured in each HSSF unit using a portable multiparameter OAKTON (PC650-480485). DO was measured using a portable oximeter (oxi 330i/set Hanna HI 9146-04) López et al, 2015). Aboveground and belowground biomass were obtained by dewatering at 75 °C for 24 h, until reaching constant weight (Neubauer et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

“…Proximate analysis was performed for below and aboveground biomass of Phr and Sch. TN was analyzed by digestion and distillation and TP by calcination and colorimetry (Neubauer et al, 2012) (López et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

“…The wastewater used in the HSSF was extracted after pre-treatment (40 mm bars), and then turn to a primary treatment, consisting of sand trap-degreaser (630 L), septic tank (1200 L) and pumping tank (630 L). Then, the HSSF was then fed by gravity (López et al, 2015).…”

Section: Hssf Constructed Wetlandsmentioning

confidence: 99%

“…The support medium was gravel, with an average height of 0.57 m (Rojas et al, 2013., Navia et al, 2003. Figure 1a shows the HSSF system: two units were planted with the macrophyte species Phragmites australis and labeled (HSSF-Phr1) and (HSSF-Phr2), respectively; and two units were planted with the species Schoenoplectus californicus macrophyte and labeled (HSSF-Sch1) and (HSSF-Sch2), respectively (López et al, 2015).…”

Section: Hssf Constructed Wetlandsmentioning

confidence: 99%

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Phragmites australis and Schoenoplectus californicus in constructed wetlands: Development and nutrient uptake

López

Sepúlveda

Vidal

2016

J. Soil Sci. Plant Nutr.

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The goal of this work was to evaluate the development and nutrient uptake by Phragmites australis (Phr) and Schoenoplectus californicus (Sch) in horizontal subsurface flow constructed wetlands (HSSF) designed for wastewater treatment. Four HSSF systems with a surface area of 4.5 m 2 were planted with Phr and Sch. Wastewater was fed for 3 years at 1.6 to 4.8 g N m -2 d -1 and 0.2 to 0.6 g P m -2 d -1 . Nutrients (total nitrogen-TN and total phosphorus-TP), organic matter (chemical oxygen demand-COD) and solids (total suspended solids-TSS) were evaluated.Nitrogen and phosphorus uptake were 7.52 g N m -2 and 0.83 g P m -2 for HSSF-Sch and 11.39 g N m -2 and 0.23 g P m -2 for HSSF-Phr. Showing a development of biomass of HSSF-Sch and HSSF-Phr were 1782 g DW m -2 and 385 g DW m -2 , respectively. Under these conditions, the removal efficiencies were 55-63% of COD and 88-92% of TSS for HSSF-Phr and 46-66% of COD and 83-91% of TSS for HSSF-Sch. TN removal was 23-24% for HSSF-Phr and 18-23% for HSSF-Sch. At the same time, removal for TP was -1 to 4% for HSSF-Phr and for HSSF-Sch was 9-13%. 12.15 g TN m -2 and 1.06 g TP m -2 , while rhizomes contained 0.4 g TN m -2 and 0.06 g TP m -2 . The goal of this work was to evaluate the development and nutrient uptake by Phr and Sch in subsurface flow constructed wetlands designed for wastewater treatment. Materials and Methods Study areaThe wetland system is located in Hualqui (36°59'26.93" south and 72°56'47.23" west), Biobío Region, Chile.The influent entering to the HSSF was wastewater

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Hssf Constructed Wetlandsmentioning

confidence: 99%

Section: Hssf Constructed Wetlandsmentioning

confidence: 99%

See 2 more Smart Citations

Phragmites australis and Schoenoplectus californicus in constructed wetlands: Development and nutrient uptake

López

Sepúlveda

Vidal

2016

J. Soil Sci. Plant Nutr.

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“…The in situ parameters, such pH, temperature, electrical conductivity (EC), dissolved oxygen (DO), and oxidation-reduction potential (ORP), were measured in situ with all the samples using a multiparametric OAKTON-PC650 (Eutech Instruments; Singapore city Singapore). Conventional wastewater parameters, including chemical oxygen demand (COD), biological oxygen demand (BOD 5 ), total suspended solids (TSS), volatile suspended solids (VSS), ammoniacal nitrogen (NH 4 + -N), and orthophosphate (PO 4 3− -P), were analyzed following standard methods [28]. Total organic carbon (TOC) was measured using a TOC-L CPH analyzer (Shimadzu; Tokyo Japan) equipped with an ASI-L autosampler (Shimadzu; Tokyo Japan).…”

Section: Physicochemical and Water Quality Parametersmentioning

confidence: 99%

Removal of Organic Micropollutants in Wastewater Treated by Activated Sludge and Constructed Wetlands: A Comparative Study

Contreras

López

Leiva

et al. 2019

Water

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The aim of this study is to compare the removal of organic micropollutants (OMPs) in wastewater by activated sludge (AS) and constructed wetlands (CWs). This analysis was carried out in a wastewater treatment plant (WWTP) of a rural community where they implemented two technologies in parallel: AS and a pilot plant of horizontal subsurface flow (HSSF) constructed wetlands. In this case, these systems were fed by the same influent and the removal efficiencies of 14 OMPs, including analgesics/anti-inflammatories, anticonvulsants, stimulants, antifungals, fragrances, plasticizers, and transformation products, were evaluated in each system. Regarding the presence of OMPs in the wastewater, the concentrations of these compounds in the influent ranged from 0.16 to 7.75 µg/L. In general, the removal efficiencies achieved by the AS system were between 10%–95% higher than those values reported by HSSFs with values above 80% for naproxen, ibuprofen, diclofenac, caffeine, triclosan, methyl dihydrojasmonate, bisphenol-A, 2-hydroxyl ibuprofen, and carboxy ibuprofen (p < 0.05). This behavior can be related to the aerobic conditions that promote the AS system with oxidation-reduction potential (ORP) and dissolved oxygen (DO) values above −281 mV and 0.24 mg/L, respectively. However, the removal of galaxolide was greater in HSSF system than in AS with significant difference of 70% (p < 0.05). Despite these results, this study reveals that comparing both technologies, AS had the best removal performance of these OMPs studied.

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What is Latin America Doing Regarding the Research and Teaching of Nature-Based Solutions (NbS) to Boost Environmental Education?

et al. 2022

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Relationship between the removal of organic matter and the production of methane in subsurface flow constructed wetlands designed for wastewater treatment

Cited by 42 publications

References 42 publications

Phragmites australis and Schoenoplectus californicus in constructed wetlands: Development and nutrient uptake

Phragmites australis and Schoenoplectus californicus in constructed wetlands: Development and nutrient uptake

Removal of Organic Micropollutants in Wastewater Treated by Activated Sludge and Constructed Wetlands: A Comparative Study

What is Latin America Doing Regarding the Research and Teaching of Nature-Based Solutions (NbS) to Boost Environmental Education?

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