Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System
onstructed wetland applications have been limited by a large land requirement and capital investment. This study aimed to improve a shallow pond water hyacinth system by incorporating the advantages of engineered attached microbial growth technique (termed Bio-hedge) for on-site domestic wastewater...
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| Format: | Article |
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MDPI AG
2015-01-01
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| Series: | Water |
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| Online Access: | http://www.mdpi.com/2073-4441/7/1/329 |
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| author | Alireza Valipour Venkatraman Kalyan Raman Young-Ho Ahn |
| author_facet | Alireza Valipour Venkatraman Kalyan Raman Young-Ho Ahn |
| author_sort | Alireza Valipour |
| collection | DOAJ |
| description | onstructed wetland applications have been limited by a large land requirement and capital investment. This study aimed to improve a shallow pond water hyacinth system by incorporating the advantages of engineered attached microbial growth technique (termed Bio-hedge) for on-site domestic wastewater treatment. A laboratory scale continuous-flow system consists of the mesh type matrix providing an additional biofilm surface area of 54 m2/m3. Following one year of experimentation, the process showed more stability and enhanced performance in removing organic matter and nutrients, compared to traditional water hyacinth (by lowering 33%–67% HRT) and facultative (by lowering 92%–96% HRT) ponds. The wastewater exposed plants revealed a relative growth rate of 1.15% per day, and no anatomical deformities were observed. Plant nutrient level averaged 27 ± 1.7 and 44 ± 2.3 mg N/g dry weight, and 5 ± 1.4 & 9±1.2 mg P/g dry weight in roots and shoots, respectively. Microorganisms immobilized on Bio-hedge media (4.06 × 107 cfu/cm2) and plant roots (3.12 × 104 cfu/cm) were isolated and identified (a total of 23 strains). The capital cost was pre-estimated for 1 m3/d wastewater at 78 US$/m3inflow and 465 US$/kg BOD5 removed. This process is a suitable ecotechnology due to improved biofilm formation, reduced footprint, energy savings, and increased quality effluent. |
| first_indexed | 2024-04-12T18:23:45Z |
| format | Article |
| id | doaj.art-8b0863cc16044a6ead0fac16391e5067 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-12T18:23:45Z |
| publishDate | 2015-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-8b0863cc16044a6ead0fac16391e50672022-12-22T03:21:20ZengMDPI AGWater2073-44412015-01-017132934710.3390/w7010329w7010329Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland SystemAlireza Valipour0Venkatraman Kalyan Raman1Young-Ho Ahn2Department of Civil Engineering, Yeungnam University, Gyungsan 712-749, KoreaAga Research Technology Innovation Centre, Thermax Limited, Pune 411 019, IndiaDepartment of Civil Engineering, Yeungnam University, Gyungsan 712-749, Koreaonstructed wetland applications have been limited by a large land requirement and capital investment. This study aimed to improve a shallow pond water hyacinth system by incorporating the advantages of engineered attached microbial growth technique (termed Bio-hedge) for on-site domestic wastewater treatment. A laboratory scale continuous-flow system consists of the mesh type matrix providing an additional biofilm surface area of 54 m2/m3. Following one year of experimentation, the process showed more stability and enhanced performance in removing organic matter and nutrients, compared to traditional water hyacinth (by lowering 33%–67% HRT) and facultative (by lowering 92%–96% HRT) ponds. The wastewater exposed plants revealed a relative growth rate of 1.15% per day, and no anatomical deformities were observed. Plant nutrient level averaged 27 ± 1.7 and 44 ± 2.3 mg N/g dry weight, and 5 ± 1.4 & 9±1.2 mg P/g dry weight in roots and shoots, respectively. Microorganisms immobilized on Bio-hedge media (4.06 × 107 cfu/cm2) and plant roots (3.12 × 104 cfu/cm) were isolated and identified (a total of 23 strains). The capital cost was pre-estimated for 1 m3/d wastewater at 78 US$/m3inflow and 465 US$/kg BOD5 removed. This process is a suitable ecotechnology due to improved biofilm formation, reduced footprint, energy savings, and increased quality effluent.http://www.mdpi.com/2073-4441/7/1/329attached microbial growthdomestic wastewateron-site treatmentphytoremediationwater hyacinth system |
| spellingShingle | Alireza Valipour Venkatraman Kalyan Raman Young-Ho Ahn Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System Water attached microbial growth domestic wastewater on-site treatment phytoremediation water hyacinth system |
| title | Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System |
| title_full | Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System |
| title_fullStr | Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System |
| title_full_unstemmed | Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System |
| title_short | Effectiveness of Domestic Wastewater Treatment Using a Bio-Hedge Water Hyacinth Wetland System |
| title_sort | effectiveness of domestic wastewater treatment using a bio hedge water hyacinth wetland system |
| topic | attached microbial growth domestic wastewater on-site treatment phytoremediation water hyacinth system |
| url | http://www.mdpi.com/2073-4441/7/1/329 |
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