Sewage sludge management at the central wastewater treatment plant Ljubljana

Improving aeration control at the Ljubljana wastewater treatment plant.

This paper describes an improvement to the aeration control at the Ljubljana wastewater treatment plant. Several changes were made to the existing aeration control. An adjustment to the parameters of the common air pressure controller contributes to a more responsive operation of the compressors. The introduction of the air pressure set-point controller adjusts the air pressure in the common ai...

Evaluation of Sewage Sludge for Incineration (Case study: Arak Wastewater Treatment Plant)

Sewage sludge treatment has become a primary subject in wastewater treatment and energy production. This paper aims to study the feasibility of power generation by incineration from sewage sludge enriched with impurities like heavy metals. For this purpose, we chose Arak wastewater treatment plant (AWWTP) and used calorific bomb test for examination. The experimental results showed that the hea...

Energy Management System for a Wastewater Treatment Plant: Case of Activated Sludge Bioreactors

Amand L. and Carlsson B. (2012), "Optimal areation control in a nitrifying activated sludge process" J Wtaer Research. 46(7), 2101-2110. Chae K. and J. Kang (2013), "Estimating the Independence of Munciple Wastewater Treatment Plant Incorporating Green Energy Resource". Energy Conservation and Managment. No. 75, pp. 664-672. Goldstein R. and W. Smith (2002), "Water & Sustainability (volume 4)...

Sludge Characterization of an Industrial Wastewater Treatment Plant, Iran

Background and purpose: Disposing sludge from industrial wastewater treatment plants (IWWTPs) is a serious issue because it can affect human and animals health, and also environmental quality. In this study, sludge from an IWWTP was analyzed regarding its physicochemical characteristics and disposal options. Materials and Methods: Grab sampling was used to collect 12 sludge samples biweekly (Ma...

Biocides in wastewater and in sewage sludge