Objective: This research aimed to assay the dehydration and stabilization of surplus biosolids from a wastewater activated sludge treatment plant, with sludge-treatment wetlands, at Iguazú National Park (Misiones, Argentina). Materials Methods: A 12-cell reed beds (STRB) system was built operated for four years. Afterwards, accumulated sediments were analyzed total solids (TS) concentration, vo...

The technology and the installation of acid mine water treatment by bioaccumulation, is realized in three distinct stages, namely: primary stage, consisting raw capture, with neutralizing coagulating chemical reagents, solid phase settling sludge treatment, [I, II , IV, V], secondary removal heavy metals neutralization acidity passing effluent first through a battery phytoextraction cells, [III...

Sewage sludge management at wastewater treatment plants is becoming a more and challenging task. Here, an innovative integrated modeling approach developed to investigate the optimization of municipal plant (MWWTP) by inclusion hydrothermal carbonization (HTC). To this aim, two alternative layouts have been considered: (i) conventional activated sludge-based plant, i.e., based on thickening, st...

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...

introduction with increasing development of urban communities and increase of population in towns, thus the need for water is also increased in the recent years. production rate of municipal wastewater has also grown dramatically. on the other hand, increase of public awareness about the water pollution problems has followed the new and stricter environmental laws concerning wastewater discharg...

Activated sludges are an inoculum source commonly used in biodegradation studies, as wastewater treatment facilities constitute an entry point to the environment for many chemicals. In this paper, the main issues relating to the use of activated sludge in biodegradability tests are presented. Special attention is also devoted to discussing the factors affecting both the activity of the microbia...