The influence of temperature on the solubilization of phosphorus from the sewage sludge using Bacillus megaterium bacteria

Abstract

This paper presents the results of research on the influence of temperature on the course of phosphorus solubilization from sewage sludge using Bacillus megaterium bacteria. The research was performed on a sanitized sewage sludge from a biological-mechanical treatment plant, to which phosphorus bacteria were applied. The experiment was conducted in two different temperature conditions, i.e. 21 and 36°C throughout the period of 23 days. During this time, parameters such as pH value and the total count of mesophilic bacteria were measured. The performed analyzes revealed that phosphorus solubilization occurs in both cases, however, at 36°C the process occurs much faster.