Topic
Clarifier
About: Clarifier is a research topic. Over the lifetime, 1950 publications have been published within this topic receiving 17929 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: Results from batch experiments suggested that Ag-NP transformation to Ag(2)S occured in the nonaerated tank within less than 2 h, which must be considered in future risk assessments.
Abstract: We investigated the behavior of metallic silver nanoparticles (Ag-NP) in a pilot wastewater treatment plant (WWTP) fed with municipal wastewater. The treatment plant consisted of a nonaerated and an aerated tank and a secondary clarifier. The average hydraulic retention time including the secondary clarifier was 1 day and the sludge age was 14 days. Ag-NP were spiked into the nonaerated tank and samples were collected from the aerated tank and from the effluent. Ag concentrations determined by inductively coupled plasma-mass spectrometry (ICP-MS) were in good agreement with predictions based on mass balance considerations. Transmission electron microscopy (TEM) analyses confirmed that nanoscale Ag particles were sorbed to wastewater biosolids, both in the sludge and in the effluent. Freely dispersed nanoscale Ag particles were only observed in the effluent during the initial pulse spike. X-ray absorption spectroscopy (XAS) measurements indicated that most Ag in the sludge and in the effluent was present a...
783 citations
TL;DR: The decisions that have been made over the past three years regarding the models used within the BSM2 are presented and argued, with particular emphasis on the ADM1 description of the digester, the interfaces between activated sludge and digester models, the included temperature dependencies and the reject water storage.
304 citations
TL;DR: The best dewaterability is observed for activated sludge that contains strong, compact flocs without single cells and dissolved extracellular polymeric substances.
286 citations
TL;DR: In this article, an overview on the contamination of these media is given, and the behavior of organotins in the treatment process is described in raw municipal wastewater of the city of Zurich, Switzerland, mono- (MBT), di- (DBT), and tributyltin (TBT) were detected in the range of 140-560, 130-1030, and 60-220 ng/l, respectively.
157 citations
TL;DR: The biological nutrient-removal potential of an on-site Membrane bioreactor located in the basement of a four-person house treating domestic wastewater was investigated and optimal PAO growth and phosphorous removal up to 90% was reached.
134 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 15 |
| 2024 | 22 |
| 2023 | 53 |
| 2022 | 71 |
| 2021 | 18 |
| 2020 | 34 |