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 ...

Single particle Inductively Coupled Plasma Time-of-Flight Mass Spectrometry (sp-ICP-TOFMS), in combination with online microdroplet calibration, allows for the determination of number concentrations (PNCs) and masses elements individual particles. Because sp-ICP-TOFMS analyses environmental samples produce rich datasets composed both single-metal nanoparticles (smNPs) many types multi-metal NPs...

Wastewater treatment plants (WWTPs) have been regarded as feasible interceptors of microplastics, which now contaminated all spheres the environment. The microplastics removed from WWTPs are frequently trapped in sludge produced. This article aims to examine abundance different regions by reviewing relevant scholarly papers published between 2016 2022. were retrieved three databases, namely Web...

Nitrous oxide (N 2 O) is an ozone-depleting substance and a harmful greenhouse gas with a global warming potential three hundred times larger than that of carbon dioxide. Measurement campaigns at domestic wastewater treatment plants (WWTPs) have found significant N 2 O emissions [1–5]. Specifically, N 2 O is found to be produced during the typical WWT processes involved in the nitrogen removal ...

1 Introduction For many years, the main focus of environmental pollution has been on chemical and pharmaceutical manufacturers. Spectacular accidents, such as that at the BASF facility in amongst others, provided the impetus for improved safety and spillage regulations as well as driving the efforts for environmental modeling and improved analysis of environmental samples. More recently, attent...

Since the 1950s, plastic production has skyrocketed. Various environmental and human activities are leading to formation accumulation of microplastics (MPs) in aquatic terrestrial ecosystems, causing detrimental effects on water, soil, plants, living creatures. Wastewater treatment plants (WWTPs) one primary MP management centers meant check their entry into natural systems. However, there cons...

Studies that characterize the microbial communities in wastewater treatment plants (WWTPs) are numerous, yet similar studies industrial WWTPs treating fish-canning effluents limited. The samples of 4 operated under different NaCl concentrations were investigated by qPCR and partial 16S rRNA gene Illumina sequencing. absolute abundances key populations (Total Bacteria, Archaea Fungi, ammonium ox...

This study investigates, for the first time, the application of metabolic models incorporating polyphosphate accumulating organisms (PAOs) and glycogen accumulating organisms (GAOs) towards describing the biochemical transformations of full-scale enhanced biological phosphorus removal (EBPR) activated sludge from wastewater treatment plants (WWTPs). For this purpose, it was required to modify p...

As polybrominated diphenyl ethers (PBDEs) face increasing restrictions worldwide, several alternate flame retardants are expected to see increased use as replacement compounds in consumer products. Chemical analysis of biosolids collected from wastewater treatment plants (WWTPs) can help determine whether these flame retardants are migrating from the indoor environment to the outdoor environmen...