Many contaminants of interest in water and wastewater are particles, or are made into particles for removal. Typical municipal wastewater treatment plants include both primary and secondary sedimentation, and those with tertiary treatment likely have granular media filtration. Typical drinking water plants using surface water supplies have flocculation, gravity separation (sedimentation or flot...

In this study, a bioelectrochemical reactor was investigated for simultaneous hydrogen production and ammonium recovery from reject water, which is an ammonium-rich side-stream produced from sludge treatment processes at wastewater treatment plants. In the anode chamber of the reactor, microorganisms converted organic material into electrical current. The electrical current was used to generate...

from 2 IBBA workshop on methane emissions in Kiel, Germany, September 4 2014. Full-scale quantification of CH4 emissions from wastewater treatment plants and biogas facilities. Antonio Delre, Jacob Mønster, Charlotte Scheutz DTU Environment – Technical University of Denmark

background: the entrance of toxic compounds into wastewater treatment plants (wwtps) can induce disorder in their biological units. therefore, it is necessary to determine the sources of toxic wastewaters. in this study, the toxicity of the wastewater of 3 metal plating industries was assessed using sequencing batch reactor (sbr) bacteria. methods: to obtain the 1-1000 ml/l concentrations, the ...

Most biological nutrient removal (BNR) wastewater treatment plants are required by permit to significantly reduce total nitrogen (TN) and total phosphorus (TP). In Florida, advanced wastewater treatment (AWT) permit limits are as stringent as 3 mg/L TN and 1 mg/L TP as annual average or maximum month values. Consistently meeting low nutrient permit limits presents several operational challenges...

The 204- and 229-nm excited UV resonance Raman spectra of wastewater solutions containing sodium nitrite and nitrate were measured in the concentration range 7 microM to 3.5 mM (0.1-50 ppm nitrogen). The other chemical species present in wastewater do not interfere with Raman measurements of NO2-/NO3- bands. We observe detection limits of < 14 microM (< 200 ppb) for both NO2- and NO3-. UV reson...

Introduction: Macrolides are a group of antibacterial agents. Given their clinical importance, and the consistent rise in resistance among pathogenic bacteria, macrolides have been the targets of extensive research. Materials and Methods: This review considered the number of macrolides in different wastewater and the removal of these drugs. The antibiotics were frequently detected in influents...

This Special Issue of Sustainability aims to report the recent developments in Sustainable Wastewater Management and Treatment, mainly those focused on improving overall performance wastewater treatment plants (WWTPs) terms both reducing their environmental impact integrating them into urban circular economy [...]

Biological nutrient removal (BNR) technology can suffer poor performance or complete failure due to the fastidious nature of the bacteria used in the system. The bacteria involved necessitate strict operating conditions, multiple zones with one or more recycling lines, carbon source augmentation, and efficient aeration. For wastewater treatment plants receiving significant combined sewer overfl...