Aprovechamiento de lodos de la planta de aguas residuales del cantón El Carmen como biosólidos para el sector forestal
The purpose of this study was to evaluate the sludge from the wastewater treatment plant of the El Carmen canton as biosolids for the forestry sector. The residual sludge was categorized where the methodology recommended by the Official Mexican Standard NOM-004-SERMANAT-2002 was used, carrying out c...
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| Format: | bachelorThesis |
| Language: | spa |
| Published: |
2021
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| Online Access: | http://repositorio.espam.edu.ec/handle/42000/1420 |
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Add Tag | Summary: | The purpose of this study was to evaluate the sludge from the wastewater treatment plant of the El Carmen canton as biosolids for the forestry sector. The residual sludge was categorized where the methodology recommended by the Official Mexican Standard NOM-004-SERMANAT-2002 was used, carrying out chemical (Hg, Pb and Cd) and biological analyzes (fecal coliforms and helminth eggs), in addition the mixtures were determined most effective biosolids by means of a completely randomized experimental design (DCA), with 3 treatments and 4 repetitions, giving a total of 12 experimental units, the T0 consisted of placing two seeds naturally in 100% degraded soil, while T1 and T2 were carried out in a similar way, degraded soil and residual mud were used varying 30 and 60%, it was monitored for 21 days to determine the growth of the plants. Finally, the economic feasibility for the application of biosolids was established through a unit cost analysis in terms of associated costs. As a result, it was verified that the proposed hypothesis is fulfilled, that is, the sludge from the WWTP serves as biosolids for application in the forestry sector since they had positive effects on plant growth, where T2 obtained the best result, reaching the 2.38 cm, while the T0 and T1 reached up to 1.60 cm respectively. Likewise, it was corroborated through the analysis of variance (ANOVA) that there are significant differences. |
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