Pyrolysis of domestic sewage sludge: influence of operational conditions on the product yields using factorial design.

This study aims to investigate a sustainable method for sewage sludge (SS) safe disposal and reuse. The study involved exploring the optimum parameters of thermal treatment of SS by pyrolysis to produce biochar. Based on the analysis of the full factorial design, the effects of pyrolysis conditions: temperature, heating rate, and isothermal time on pyrolysis product yields were evaluated.

Selection of bacteria and plant seeds for potential use in the remediation of diesel contaminated soils.

Enumeration and recovery of the dominant bacteria from a chronically fuel contaminated soil has been investigated. Bacterial counts from these polluted soils ranged between 0.70x10(8) and 28.