Sistema de reutilización de aguas grises en un entorno doméstico rural para la recuperación de nutrientes en el Cantón Latacunga, Provincia de Cotopaxi, Período 2021-2022.
Developing sustainable management of effluents produced on a rural scale in a domestic environment is essential to control eutrophication, mitigating the excessive discharge of nutrients (nitrogen and phosphorus). Therefore, duckweed (Lemna minor) was used as an aquatic macrophyte that has the poten...
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| Diğer Yazarlar: | |
| Materyal Türü: | bachelorThesis |
| Dil: | spa |
| Baskı/Yayın Bilgisi: |
2022
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| Konular: | |
| Online Erişim: | http://repositorio.utc.edu.ec/handle/27000/8536 |
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Etiketle | Özet: | Developing sustainable management of effluents produced on a rural scale in a domestic environment is essential to control eutrophication, mitigating the excessive discharge of nutrients (nitrogen and phosphorus). Therefore, duckweed (Lemna minor) was used as an aquatic macrophyte that has the potential to absorb and fix pollutants from wastewater. This macrophyte was presented as a profitable and feasible alternative for the treatment of wastewater and livestock fodder production. Next, a wastewater nutrient recovery system was proposed in a domestic environment, and the growth and nutrient uptake efficiency of duckweed (Lemna minor) in domestic wastewater was examined. Then, a pond of 8.51 m2 and 0.5 m deep was implemented to receive the effluent, and production of 2.87 m3 per month was obtained by gauging, including water from hand washing, kitchen, and laundry. Then, Lemna minor was seeded with an initial density of 100 gm-. Laboratory analysis of the wastewater determined a concentration of 70 ppm N and 15.6 ppm P. Finally, removal of total Kjeldahl nitrogen and total phosphorus of up to 86.5 and 67%, respectively, was achieved. In addition, the proximal analysis of the dehydrated macrophyte showed high contents of soluble carbohydrates (39.68%) of easy assimilation (Nitrogen Free Extract). The protein content on a dry basis reached 23.84%, showing a high biological value and the potential to replace conventional protein sources such as fish and soybean meal in pet food. |
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