DSS-OSM: An Integrated Decision Support System for Offshore Oil Spill Management

Li, Pu; Chen, Bing; Zou, Shichun; Li, Zhenhua; Zhang, Zekun

doi:10.3390/w14010020

Cited by 2 publications

References 38 publications

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Anammox Bacteria and Their Application in Wastewater Treatment Plants

Dey,

Anand

et al. 2023

Ammonia Oxidizing Bacteria

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Anaerobic ammonia oxidation (anammox) is considered as an innovative technology designed for the treatment of wastewater with very high ammonia nitrogen concentrations. This process has significant advantages over other processes as it is energy saving and produces a much reduced amount of sludge. It is also considered as an eco-friendly, cost effective process and is associated with less greenhouse gas emissions. Anaerobic ammonium oxidation (anammox) bacteria were discovered as early as the 1990s and they have the unique metabolic ability to combine ammonium and nitrite or nitrate to form nitrogen gas. These groups of microorganisms are responsible for nearly 50% of the total nitrogen turnover. The anammox bacteria comprise a wide range of microorganisms that are capable of doing a wide range of functions, such as nitritation and denitritation, which have much reduced oxygen and organic matter consumption. This present chapter mainly deals with the types of anammox bacteria and their mode of action in wastewater treatment systems. The impact of environmental factor on the metabolic activity of these group has also been discussed in detail. Also, focus is given to the potential application of anammox bacteria on an industrial scale.

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Anammox Bacteria and Their Application in Wastewater Treatment Plants

Dey,

Anand

et al. 2023

Ammonia Oxidizing Bacteria

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Country-Wide Ecological Health Assessment Methodology for Air Toxics: Bridging Gaps in Ecosystem Impact Understanding and Policy Foundations

Munshed,

Van Griensven Thé,

Fraser

et al. 2024

Toxics

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Amid the growing concerns about air toxics from pollution sources, much emphasis has been placed on their impacts on human health. However, there has been limited research conducted to assess the cumulative country-wide impact of air toxics on both terrestrial and aquatic ecosystems, as well as the complex interactions within food webs. Traditional approaches, including those of the United States Environmental Protection Agency (US EPA), lack versatility in addressing diverse emission sources and their distinct ecological repercussions. This study addresses these gaps by introducing the Ecological Health Assessment Methodology (EHAM), a novel approach that transcends traditional methods by enabling both comprehensive country-wide and detailed regional ecological risk assessments across terrestrial and aquatic ecosystems. EHAM also advances the field by developing new food-chain multipliers (magnification factors) for localized ecosystem food web models. Employing traditional ecological multimedia risk assessment of toxics’ fate and transport techniques as its foundation, this study extends US EPA methodologies to a broader range of emission sources. The quantification of risk estimation employs the quotient method, which yields an ecological screening quotient (ESQ). Utilizing Kuwait as a case study for the application of this methodology, this study’s findings for data from 2017 indicate a substantial ecological risk in Kuwait’s coastal zone, with cumulative ESQ values reaching as high as 3.12 × 103 for carnivorous shorebirds, contrasted by negligible risks in the inland and production zones, where ESQ values for all groups are consistently below 1.0. By analyzing the toxicity reference value (TRV) against the expected daily exposure of receptors to air toxics, the proposed methodology provides valuable insights into the potential ecological risks and their subsequent impacts on ecological populations. The present contribution aims to deepen the understanding of the ecological health implications of air toxics and lay the foundation for informed, ecology-driven policymaking, underscoring the need for measures to mitigate these impacts.

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DSS-OSM: An Integrated Decision Support System for Offshore Oil Spill Management

Cited by 2 publications

References 38 publications

Anammox Bacteria and Their Application in Wastewater Treatment Plants

Anammox Bacteria and Their Application in Wastewater Treatment Plants

Country-Wide Ecological Health Assessment Methodology for Air Toxics: Bridging Gaps in Ecosystem Impact Understanding and Policy Foundations

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