Odors Emitted from Biological Waste and Wastewater Treatment Plants: A Mini-Review

Abstract

In recent decades, a new generation of waste treatment plants based on biological treatments (mainly anaerobic digestion and/or composting) has arisen all over the world. These plants have been progressively substituted for incineration facilities and landfills. Although these plants have evident benefits in terms of their environmental impact and higher recovery of material and energy, the release into atmosphere of malodorous compounds and its mitigation is one of the main challenges that these plants face. In this review, the methodology to determine odors, the main causes of having undesirable gaseous emissions, and the characterization of odors are reviewed. Finally, another important topic of odor abatement technologies is treated, especially those related to biological low-impact processes. In conclusion, odor control is the main challenge for a sustainable implementation of modern waste treatment plants.

Exploring biorefinery alternatives for biowaste valorization: a techno-economic assessment of enzymatic hydrolysis coupled with anaerobic digestion or solid-state fermentation for high-value bioproducts

“…According to the cascading principle, added-value products should be produced first followed by energy generation [ 7 ]. Currently, the preferred configuration for source-selected OFMSW treatment plants in Europe is anaerobic digestion for biogas production, which is used to generate electricity and heat, followed by composting to stabilize the digestate and produce compost [ 8 ]. However, within an OFMSW biorefinery scheme, processes that fractionate or convert complex organic matter into a wide variety of bioproducts would come before anaerobic digestion.…”

Variability of Odour Emissions from Selected Passive Area Source: Preliminary Analysis for a One-year Study at a Municipal Wastewater Treatment Plant in Poland

“…Any component of a municipal wastewater treatment plant can be a source of odour emissions, depending on the technological system of the wastewater treatment plant (WTTP) or the management of the wastewater treatment processes (Czarnota et al 2023). The assessment of odour nuisance can be based on the measurements of odour concentration using dynamic olfactometry (Dincer & Muezzinoglu 2008, Capelli et al 2011, González et al 2022 or the concentrations of specific odour compounds using instrumental/analytical methods (Jeon et al 2009, Kim et al 2005, Brattoli et al 2013. Similarly, field olfactometry (Cesca et al 2007, Pan et al 2007, Wiśniewska et al 2020, Damuchali & Guo 2019 and, more commonly, the electronic nose as an artificial olfactory sense (Giungato et al 2016, Wilson & Baietto 2009, Jońca et al 2022) are used in the odour impact analyses.…”

Effects of additives in drinking water on characteristics of Hanwoo feces

“…) 유량을 5 L/min으로 설정 한 후 가스측정기 (Gas detector, SKT100-X5, China)로 NH 3 , H 2 S 및 VOCs를 측정하여 비교하였다 (González et al, 2022).…”