Bioremediation of shrimp farming effluents by means of autochthonous microbial consortia and native microalgae in Manabí, Ecuador
Shrimp farming is a constantly growing activity, which has led to the deterioration of ecosystems due to the deposition of effluents that impact the environment, which generates not only damage to ecosystems but also to the same quality of the water that enters the cultivation area. That is why this...
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| Materiálatiipa: | article |
| Giella: | spa |
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2022
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| Liŋkkat: | https://revistas.utm.edu.ec/index.php/aquatechnica/article/view/4635 |
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Lasit fáddágilkoriid | Čoahkkáigeassu: | Shrimp farming is a constantly growing activity, which has led to the deterioration of ecosystems due to the deposition of effluents that impact the environment, which generates not only damage to ecosystems but also to the same quality of the water that enters the cultivation area. That is why this research seeks to evaluate the efficiency of autochthonous microbial consortia (in vitro) in the bioremediation of the effluent of a shrimp farm located in the Cabello Manabí sector - Ecuador. For this, the following parameters were analyzed: phosphates, ammonium, nitrites, nitrates, suspended solids, dissolved oxygen, temperature, pH, BOD5 and total coliforms. A Completely Randomized Design with one factor and 4 levels was used, using 4 treatments: bacterial consortium (T1) including the yeast Saccharomyces cerevisiae., microalgae consortium (T2)., fungal consortium (T3) made up of Trichoderma harzianum, S. cerevisiae, Lactobacillus acidophilus, Bacillus subtilis, Lactobacillus plantarum., and as (T4) a combined consortium of the three previous treatments. A statistically significant difference was observed in T2 with respect to the other treatments, since thanks to its metabolic activities, the bioremediation of elements such as phosphates, nitrogen compounds and total coliforms was observed, while in the other parameters a significant improvement was not achieved. The process carried out by the microalgae made it possible to adjust the parameters analyzed to water quality criteria to be reused in agricultural and livestock activities and even discharged into freshwater bodies, concluding that the application of microalgae native to the area was useful for the bioremediation of shrimp effluents from the locality. |
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