| Issue |
E3S Web Conf.
Volume 170, 2020
6th International Conference on Energy and City of the Future (EVF’2019)
|
|
|---|---|---|
| Article Number | 06014 | |
| Number of page(s) | 5 | |
| Section | City and Buildings of Future | |
| DOI | https://doi.org/10.1051/e3sconf/202017006014 | |
| Published online | 28 May 2020 | |
Study on hybrid biorack constructed wetland
Department of Civil Engg., Walchand College of Engineering, Sangli, Maharashtra, India
* Corresponding author: guru.munvalli@walchandsangli.ac.in
Decentralized Wastewater Treatment Systems (DWTS) based on natural mechanisms of purification are appropriate for Indian conditions. Biorack constructed wetland are recent developments in the domestic wastewater treatment. In the present study the concept of biorack wetland is extended to Hybrid Biorack Constructed Wetland (HBCW) in which bioracks are supplemented by brickbat as support medium for wetland vegetation. Three separate HBCW reactors were developed with Typha angustifolia, Canna indica and dual-species (Typha angustifolia and Canna indica). Batch studies were carried out on these reactors for secondary treatment of domestic wastewater. COD removal was determined for feed wastewater strength of 100 to 200 mg COD/L by these developed reactors. The growth of vegetation was also monitored. Typha angustifolia and Canna indica were found to be an appropriate combination as dual-species. The COD removal by dual-species is 5 to 10% greater than mono-species under similar conditions of feed and support medium. HBCW is efficient to an extent of 65 to 75% for COD removal. This is preliminary study conducted on HBCW. Further studies on pilot/field scale will provide better insight to assess its suitability as an alternative biological treatment.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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