Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides)
This research aimed to investigate the effects of hydroponically cultivated vetiver grass (Vetiveria zizanioides) on the treatment of tannery wastewater for chromium (Cr) removal in Bangladesh. The field experiment involved 9 containers, which were separated into 3 groups: tannery wastewater with h...
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Environmental Research Institute, Chulalongkorn University
2025-01-01
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| Series: | Applied Environmental Research |
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| Online Access: | https://ph01.tci-thaijo.org/index.php/aer/article/view/256582 |
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| author | Ismot Zereen Md. Zainul Abedin Md. Siddikur Rahman Debasish Pandit |
| author_facet | Ismot Zereen Md. Zainul Abedin Md. Siddikur Rahman Debasish Pandit |
| author_sort | Ismot Zereen |
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This research aimed to investigate the effects of hydroponically cultivated vetiver grass (Vetiveria zizanioides) on the treatment of tannery wastewater for chromium (Cr) removal in Bangladesh. The field experiment involved 9 containers, which were separated into 3 groups: tannery wastewater with hydroponically planted vetiver, tannery wastewater without vetiver (control), and a group with vetiver grown in tap water. The tap water group was used solely for plant growth assessment, whereas only the control and hydroponic vetiver groups were evaluated for Cr and water quality parameters. Throughout the 45-day trial period, Cr and other water quality parameters were analyzed at 15-day intervals. The findings showed that the floating platform method of cultivating vetiver grass was significantly effective (p<0.05) in eliminating pollutants. The observed reduction rate for pH was 15.19%, whereas the treatment efficiencies for electrical conduc-tivity, biological oxygen demand, chemical oxygen demand, turbidity, total suspended solids, total dissolved solids, and Cr were 35.42%, 84.66%, 81.21%, 33.17%, 83.28%, 72.55%, and 79.71%, respectively. With respect to plant growth, vetiver grass is well established and thrives in tannery wastewater, achieving a root length of 22.5 cm after 45 days. Most contaminants significantly decreased (p<0.05) after treatment and were below the maximum permissible discharge limits, with only a few parameters remaining above the standards. The results provide evidence to support extensive research and application of the vetiver hydroponic technique as a cost-effective wastewater treatment method in Bangladesh.
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| format | Article |
| id | doaj-art-21b0565e4b4c4fc1b7162df68848022f |
| institution | Kabale University |
| issn | 2287-075X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Environmental Research Institute, Chulalongkorn University |
| record_format | Article |
| series | Applied Environmental Research |
| spelling | doaj-art-21b0565e4b4c4fc1b7162df68848022f2025-02-11T11:08:20ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-075X2025-01-01471Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides)Ismot Zereen0Md. Zainul Abedin1Md. Siddikur Rahman2Debasish Pandit3Department of Farm Structure and Environmental Engineering, Khulna Agricultural University, Khulna, BangladeshDepartment of Farm Structure and Environmental Engineering, Bangladesh Agricultural University, Mymensingh, BangladeshDepartment of Farm Structure and Environmental Engineering, Bangladesh Agricultural University, Mymensingh, BangladeshDepartment of Fishery Resources Conservation and Management, Khulna Agricultural University, Khulna, Bangladesh This research aimed to investigate the effects of hydroponically cultivated vetiver grass (Vetiveria zizanioides) on the treatment of tannery wastewater for chromium (Cr) removal in Bangladesh. The field experiment involved 9 containers, which were separated into 3 groups: tannery wastewater with hydroponically planted vetiver, tannery wastewater without vetiver (control), and a group with vetiver grown in tap water. The tap water group was used solely for plant growth assessment, whereas only the control and hydroponic vetiver groups were evaluated for Cr and water quality parameters. Throughout the 45-day trial period, Cr and other water quality parameters were analyzed at 15-day intervals. The findings showed that the floating platform method of cultivating vetiver grass was significantly effective (p<0.05) in eliminating pollutants. The observed reduction rate for pH was 15.19%, whereas the treatment efficiencies for electrical conduc-tivity, biological oxygen demand, chemical oxygen demand, turbidity, total suspended solids, total dissolved solids, and Cr were 35.42%, 84.66%, 81.21%, 33.17%, 83.28%, 72.55%, and 79.71%, respectively. With respect to plant growth, vetiver grass is well established and thrives in tannery wastewater, achieving a root length of 22.5 cm after 45 days. Most contaminants significantly decreased (p<0.05) after treatment and were below the maximum permissible discharge limits, with only a few parameters remaining above the standards. The results provide evidence to support extensive research and application of the vetiver hydroponic technique as a cost-effective wastewater treatment method in Bangladesh. https://ph01.tci-thaijo.org/index.php/aer/article/view/256582PhytoremediationHeavy metalTannery wastewaterVetiveria zizanioides |
| spellingShingle | Ismot Zereen Md. Zainul Abedin Md. Siddikur Rahman Debasish Pandit Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) Applied Environmental Research Phytoremediation Heavy metal Tannery wastewater Vetiveria zizanioides |
| title | Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) |
| title_full | Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) |
| title_fullStr | Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) |
| title_full_unstemmed | Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) |
| title_short | Chromium Removal from Tannery Wastewater via a Hydroponic Technique with Vetiver Grass (Vetiveria zizanioides) |
| title_sort | chromium removal from tannery wastewater via a hydroponic technique with vetiver grass vetiveria zizanioides |
| topic | Phytoremediation Heavy metal Tannery wastewater Vetiveria zizanioides |
| url | https://ph01.tci-thaijo.org/index.php/aer/article/view/256582 |
| work_keys_str_mv | AT ismotzereen chromiumremovalfromtannerywastewaterviaahydroponictechniquewithvetivergrassvetiveriazizanioides AT mdzainulabedin chromiumremovalfromtannerywastewaterviaahydroponictechniquewithvetivergrassvetiveriazizanioides AT mdsiddikurrahman chromiumremovalfromtannerywastewaterviaahydroponictechniquewithvetivergrassvetiveriazizanioides AT debasishpandit chromiumremovalfromtannerywastewaterviaahydroponictechniquewithvetivergrassvetiveriazizanioides |