Municipal wastewater treatment in horizontal and vertical flows constructed wetlands

Abou‐Elela, Sohair I.; Golinielli, G.; Abou‐Taleb, Enas M.; Hellal, Mohamed

doi:10.1016/j.ecoleng.2013.10.010

Cited by 135 publications

(63 citation statements)

References 37 publications

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“…However, there was significant difference (P > 0.05) between other pairs HFCW-HYCW and VFCW-HYCW as shown in Supplementary Table 1. Similar results are reported by Abou-Elela et al 16 . The removal of solids is mainly due to physical process such as sedimentation and filtration 16 .…”

Section: Reduction Of Suspended Solidssupporting

confidence: 82%

“…Similar results are reported by Abou-Elela et al 16 . The removal of solids is mainly due to physical process such as sedimentation and filtration 16 . The results suggest that HYCW system performed better than VFCW and HFCW system in terms of TSS removal, due to higher residence time available in HYCW.…”

Section: Reduction Of Suspended Solidssupporting

confidence: 82%

“…obtained only 44% removal of phosphate in HFCW and 50% removal in VFCW system. Abou-Elela et al 16 also found slightly better removal efficiency of 68% for VFCW compared to 63% for HFCW systems; the initial TP concentration was between 1.5 and 6.3 mg/l. The reason for higher removal of TP is mainly due to dense growth of plants (6 plants/sq.…”

Section: Reduction Of Suspended Solidsmentioning

confidence: 99%

“…Zurita et al 17 showed that the removal efficiency of TN was 45.8% for HFCW and 48.2% for VFCW system and the retention time falls within 4 days with water temperature ranging from 18.9 to 21.1C. Another study 16 showed that the removal efficiency of TN (initial TN concentration was 18.6-66 mg/l) was about 60% for HFCW system and 62.5% for VFCW system with the retention time ranging from 7.7 to 11 days and the temperature ranging from 20C to 21.1C. Another study 10 showed that TN removal was more for VFCW system (80.2%) than HFCW system (70.4%).…”

Section: Reduction Of Nitrogenous Compoundsmentioning

confidence: 99%

“…The denitrification process is considered as the major mechanism for the removal of NO 3 -N and TN, where the nitrates are converted to nitrogen gas by various facultative bacterial groups. In addition to the denitrification process, two other processes such as plant uptake and microbial assimilation are also responsible for removal of nitrates 10,16 . Among the three beds, HYCW showed comparatively higher removal efficiency than HFCW and VFCW (Figure 3 a and b) due to the higher retention time.…”

Section: Reduction Of Nitrogenous Compoundsmentioning

confidence: 99%

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Greywater Treatment Using Horizontal, Vertical and Hybrid Flow Constructed Wetlands

Ramprasad¹,

Philip²

2018

Current Science

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The performance evaluation of three pilot scale subsurface flow constructed wetlands (CW), i.e. horizontal flow (HFCW), vertical flow (VFCW) and a baffle type-hybrid (HYCW) was studied. The units were continuously fed with greywater and were planted with Phragmites australis. The inflow concentrations of BOD, COD, TSS, NO 3 , TP and FC were in the range of 72-120 mg/l, 216-320 mg/l, 224-320 mg/l 10.3-14.6 mg/l, 2.9-3.8 mg/l and 50-120 CFU/100 ml respectively. The average removal efficiencies of BOD, COD, TSS, TP, TN and FC in HYCW were 95  2%, 96  3%, 98  2%, 92  2%, 98  2% and 98  2% respectively and comparatively more than the other two constructed wetlands.

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Section: Reduction Of Suspended Solidssupporting

confidence: 82%

Section: Reduction Of Suspended Solidssupporting

confidence: 82%

Section: Reduction Of Suspended Solidsmentioning

confidence: 99%

Section: Reduction Of Nitrogenous Compoundsmentioning

confidence: 99%

Section: Reduction Of Nitrogenous Compoundsmentioning

confidence: 99%

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Greywater Treatment Using Horizontal, Vertical and Hybrid Flow Constructed Wetlands

Ramprasad¹,

Philip²

2018

Current Science

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Treatment of Effluents from Fish and Shrimp Aquaculture in Constructed Wetlands

Tepe

Temel

2018

Constructed Wetlands for Industrial Wastewater Treatment

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Phosphorus Removal from Wastewater in Biofilters with Biochar Augmented Geomedium: Effect of Biochar Particle Size

Hanandeh

Albalasmeh

Gharaibeh

2017

CLEAN Soil Air Water

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The use of biochar as a filter medium amendment has shown potential for removing organic and inorganic pollutants from wastewater. The purpose of this study was to investigate the effect of biochar particle size on: (i) removal efficiency of total phosphorus (TP) from wastewater; (ii) stability of the system under overloading and flooding conditions; and (iii) desorption potential of phosphorus from the filtration medium under inundation conditions. Biochar was prepared in two different sizes: fine and coarse with a mean diameter size of 0.31 and 0.49 mm, respectively. Two treatments using sand augmented with 8% by weight fine biochar (sand–FBC) and sand augmented with 8% by weight coarse biochar (sand–CBC) were tested. The TP removal efficiency of sand–CBC was 10% higher than sand–FBC medium. The average removal efficiencies were 83.3 ± 3.2 and 75.7 ± 7.4% for sand–CBC and sand–FBC media, respectively. Positive correlations between TP load and removal efficiencies were observed. All treatments showed resilience to overloading, flooding, and inundation conditions.

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Municipal wastewater treatment in horizontal and vertical flows constructed wetlands

Cited by 135 publications

References 37 publications

Greywater Treatment Using Horizontal, Vertical and Hybrid Flow Constructed Wetlands

Greywater Treatment Using Horizontal, Vertical and Hybrid Flow Constructed Wetlands

Treatment of Effluents from Fish and Shrimp Aquaculture in Constructed Wetlands

Phosphorus Removal from Wastewater in Biofilters with Biochar Augmented Geomedium: Effect of Biochar Particle Size

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