Resumo

NOVA PINEDO, Máximo; MAMANI SANCHEZ, Beatriz  e  ALVAREZ MEJIA, Juan Gabriel. Application of biological activators in two types of compost for the degradation of organic waste, Carmen Pampa, Coroico - Bolivia. RevActaNova. [online]. 2022, vol.10, n.3, pp.263-282.  Epub 31-Mar-2022. ISSN 1683-0789.

One of the problems that currently arise in urban and rural centers is the generation of 80% domestic waste. In the Municipality of Coroico, to date, it does not have operational decomposition systems, which generate negative effects on the environment. Reason why it is necessary to look for alternatives for the reuse of organic waste. In this sense, the [Objective]: of the work was to evaluate the application of biological activators (yogurt, yeast) and a control (control) to accelerate the biodegradation of organic waste (kitchen scraps, sawdust, banana buds, vegetable stubble and pig manure) through two methods of composting in bin and pile in decomposition. [Methodology] Two types of compost bins (drawer and pile) were used, to which organic waste was added. Biological activators (yogurt and yeast) and a control were added to each of them. The applied design was DBA with bifactorial arrangement, with three repetitions. The variables evaluated are: temperature and pH of the substrate, decrease in the substrate and percentage of decomposition. [Results]: The temperature of the substrate due to the effect of the yogurt and yeast activators increased to 60ºC in relation to the control. The pH and the height of the substrate presented a similar behavior between activators, but the same did not occur with the control. After 90 days, the two types of activators were 93% and 94% more efficient in compost decomposition than without them (56%). [Conclusion] The decomposition of organic remains was effective by the application of activators (yogurt and yeast) which, in the absence of these, and the type of drawer composter was the most effective in decomposition.

Palavras-chave : Biological activators; organic waste; types of composting; decomposition and biodegradation.

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