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Potential Use of the Constructed Wetland System as an Eco-technology for Wastewater Treatment in Resort |
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| รหัสดีโอไอ | |
| Creator | 1. Lukkhana Benjawan 2. Warunsak Liamlaem 3. Chongrak Polprasert |
| Title | Potential Use of the Constructed Wetland System as an Eco-technology for Wastewater Treatment in Resort |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2565 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 15 |
| Journal No. | 2 |
| Page no. | 132-140 |
| Keyword | Onsite wastewater treatment, Subsurface flow, Constructed wetland, Treated wastewater reuse, Green resort |
| URL Website | https://tshe.org/main/ea-journal-online |
| Website title | EnvironmentAsia Journal |
| ISSN | 1906-1714 |
| Abstract | Tourism expansion can put pressure and deterioration on natural resources particularly invulnerable riverside areas. Because of water pollution scenario could negatively impactthe number of visitors, wastewater treatment before discharging becoming a necessaryprocess for resort enterprises. However, lack of sewerage network and treatment systemin Thailand poses the need to have an affordable and efficient onsite wastewater treatmentsystem. In this study, a modified subsurface flow constructed wetland (MSF-CW) systemwas applied to treat a resort wastewater that had high and fluctuating organic contents. The system performance, investigated during 7 months, revealed that chemical oxygen demand (COD), biochemical oxygen demand (BOD), total kjeldahl nitrogen (TKN), total phosphorus (TP) and suspended solids (SS) removal efficiencies were 81%, 84%, 30%, 40% and 78%, respectively, and all meeting the Thai building effluent standards. The treated effluent qualities were also compared to the guidelines for water reuse, then applied for landscape irrigation at the resort to promote water conservation and sustainable use. Based on the analytical results, the hydraulic retention time (HRT) of this system should not be less than 5 days to maintain a satisfactory efficiency. From the long-term monitoring period, this system showed easy operation with low maintenance cost. The benefits of the MSF-CW application in this study are not only for wastewater treatment but also for green area creation, useful for the resort to promote eco-tourism and sustainability. The constructed wetland (CW) system is, therefore, strongly suggested as a facility for small or medium-size resorts, hotels and homestays to achieve water pollution abatement and promoting eco-sustainable tourism. |
