Obtención de abono orgánico mediante lodos activados y desechos orgánicos de los procesos de tratamiento de aguas residuales (grises-negras) de las plantas portátiles tipo paquete de la empresa peisol s.a

Abstract

The objective of this investigation was to take advantage of the sludge from the wastewater treatment of the portable plants of the company PEISOL S.A. two biological processes were established for its treatment, the products were evaluated, and the quality of each one was determined. In the first process, the Takakura method was applied to obtain organic fertilizer, for which the seed was made with 2 kg of flour, 1.5 kg of dehydrated sludge, 3 kg of sawdust and 3.5 L of ferment. After 15 days, the seed was mixed with 15 kg of solid organic residues deposited in a breathable box. During the composting time, the temperature, pH and humidity were controlled. After 101 days, the product obtained was characterized, and the results were compared with international standards. It was determined that the EPA is the only one that ensures the use of organic fertilizer obtained in agriculture. As a second process, anaerobic digestion was used to obtain biol using a consortium of lactic acid bacteria as an accelerator in three treatments called T1 (white + milk), T2 (white + whey) and T3 (white + 50% milk + 50% milk whey) which were subjected to the degradation process in an artisan biodigester, during the fermentation time they have monitored parameters such as pH and temperature which were evaluated against a control treatment. The treatments' results were statistically analyzed, starting from a completely randomized experimental design, which was resolved with a one-way ANOVA. Once this process was completed, it was determined that the best treatment was T2, with favourable results. It was also established that lactic acid bacteria statistically influence parameters such as organic matter, COD and electrical conductivity.