Evaluación de la Eficiencia de la Lombriz Roja Californiana E. foetida para Estabilización de Lodos Residuales de la PTAR Salitre

Abstract

Excessive production of sludge as a by-product of wastewater treatment now represents a growing problem. One of the alternatives that have been proposed to reincorporate these biosolids to the productive chain, which includes to use them as organic fertilizer to improve soil characteristics; It is possible thanks to the mineral wealth that presents in its components. In the present project, a laboratory-scale experimental setup was carried out based on the failed research that was carried out to determine the feasibility of using these methods in agricultural applications at the El Salitre wastewater treatment plant. In this way, 6 treatments were proposed, varying the percentage of biosolids and a substrate such as manure in each of the beds to compare their vermistabilization process and also their differences in the final characteristics. It was concluded that regardless of the composition of the beds when substrate percentage stabilization with Eisenia is effective for the biotics generated by the wastewater treatment plant El Salitre, if the optimum ranges of temperature, pH and humidity are maintained for the worm to develop and produce Humus. In all treatments the fecal coliform content of 688,000 NMP / gTs was reduced in the initial biosolide of the PTAR at 0 UFM / g dry basis after the vermistilization process. Finally, tests were carried out to systematize the van process with the help of an electronic prototype platform and temperature and humidity sensors (DHT11) to monitor and perform a simpler and more efficient tracking process, in addition to the data can be uploaded to The cloud, in this way to carry out the monitoring from anywhere and also its rapid analysis.