Co-present Pb(II) accelerates the oxidation of organic contaminants by permanganate: Role of Pb(III)

2022 ◽  
Vol 16 (8) ◽  
Author(s):  
Lei Dong ◽  
Pin Xie ◽  
Xin Zhang ◽  
Junlian Qiao ◽  
Dandan Rao ◽  
...  
Keyword(s):  
Organic Contaminants

Microbiological Detoxification of Hazardous Organic Contaminants: The Crucial Role of Substrate Interactions

1992 ◽  
Vol 25 (11) ◽  
pp. 403-410 ◽  
Author(s):  
B. E. Rittmann
Keyword(s):  
Organic Pollutants ◽  
Information Flow ◽  
Organic Contaminants ◽  
Crucial Role ◽  
Substrate Utilization ◽  
Energy Flows ◽  
Hazardous Pollutants ◽  
Primary Substrate ◽  
Substrate Types

Microbiological detoxification of hazardous organic pollutants is highly promising, but its reliable implementation requires a sophisticated understanding of several different substrate types and how they interact. This paper carefully defines the substrate types and explains how their interactions affect the bacteria's electron and energy flows, information flow, and degradative activity. For example, primary substrates, which are essential for growth and maintenance of the bacteria, also interact with degradation of specific hazardous pollutants by being inducers, inhibitors, and direct or indirect cosubstrates. The target contaminants, which often are secondary substrates, also have the interactive roles of self-inhibitor, inhibitor of primary-substrate utilization, inducer, and a part of an aggregate primary substrate.

Improving peroxymonosulfate activation by copper ion-saturated adsorbent-based single atom catalysts for the degradation of organic contaminants: electron-transfer mechanism and the key role of Cu single atoms

2021 ◽  
Author(s):  
Jingwen Pan ◽  
Baoyu Gao ◽  
Pijun Duan ◽  
Kangying Guo ◽  
Muhammad Akram ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Organic Contaminants ◽  
High Salinity ◽  
Copper Ion ◽  
Single Atom ◽  
Electron Transfer Mechanism ◽  
Persulfate Oxidation ◽  
Single Atoms ◽  
Oxidation Technology

Nonradical pathway-based persulfate oxidation technology is considered to be a promising method for high-salinity organic wastewater treatment.

Adsorption and catalytic degradation of organic contaminants by biochar: Overlooked role of biochar’s particle size

2021 ◽  
pp. 126928
Author(s):  
Zilan Jin ◽  
Shuangjie Xiao ◽  
Haoran Dong ◽  
Junyang Xiao ◽  
Ran Tian ◽  
...  
Keyword(s):  
Particle Size ◽  
Organic Contaminants ◽  
Catalytic Degradation

Insights into the oxidation of organic contaminants by Co(II) activated peracetic acid: the overlooked role of high-valent cobalt-oxo species

2021 ◽  
pp. 117313
Author(s):  
Banghai Liu ◽  
Wanqian Guo ◽  
Wenrui Jia ◽  
Huazhe Wang ◽  
Shanshan Zheng ◽  
...  
Keyword(s):  
Peracetic Acid ◽  
Organic Contaminants ◽  
High Valent

Insights into the Role of In-situ and Ex-situ Hydrogen Peroxide for Enhanced Ferrate(VI) Towards Oxidation of Organic Contaminants

2021 ◽  
pp. 117548
Author(s):  
Mengfan Luo ◽  
Hongyu Zhou ◽  
Peng Zhou ◽  
Leiduo Lai ◽  
Wen Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Contaminants ◽  
Ex Situ

Exploring the Role of Shelf Sediments in the Arctic Ocean in Determining the Arctic Contamination Potential of Neutral Organic Contaminants

2012 ◽  
Vol 47 (2) ◽  
pp. 923-931 ◽  
Author(s):  
James M. Armitage ◽  
Sung-Deuk Choi ◽  
Torsten Meyer ◽  
Trevor N. Brown ◽  
Frank Wania
Keyword(s):  
Arctic Ocean ◽  
Organic Contaminants ◽  
The Arctic ◽  
The Arctic Ocean ◽  
Shelf Sediments

Potential Role of Endophytes for Sustainable Environment

2019 ◽  
pp. 78-95
Author(s):  
Zubair A. Dar ◽  
Bhat Rifat ◽  
Javeed I. A. Bhat ◽  
Asma Absar Bhatti ◽  
Shamsul Haq ◽  
...  
Keyword(s):  
Plant Growth ◽  
Organic Contaminants ◽  
Plant Stress ◽  
Plant Responses ◽  
Sustainable Environment ◽  
Plant Growth Promoting ◽  
Plant Stress Tolerance ◽  
Growth Promoting ◽  
Almost All

Endophytes are symptomless fungal and bacterial microorganisms found in almost all living plants. They are vital components of plant microbiomes. Endophytes affect plant growth and plant responses to pathogens, herbivores, and environmental change by producing a range of natural products having antifungal, antibacterial, and insecticidal properties. Endophytes have shown particular promise in agriculture particularly as beneficial crop inoculants and are known to enhance abiotic and biotic plant stress tolerance by increasing tolerance to drought and water stress, as well as tolerance to high temperature and high salinity. A better understanding of their plant growth-promoting mechanisms could simplify higher production of energy crops in a more sustainable manner even on marginal land and feed stocks for industrial processes, thus contribute to avoiding conflicts between food and energy production Many endophytes can be exploited to improve the efficiency of phytoremediation as they are found to be resistant to heavy metals and capable of detoxifying organic contaminants.

scholarly journals Underrepresented groups in WaSH – the overlooked role of chemical toxicants in water and health

2019 ◽  
Vol 9 (4) ◽  
pp. 786-793 ◽  
Author(s):  
Joshua P. Kearns ◽  
Matthew J. Bentley ◽  
Poorva Mokashi ◽  
Jennifer H. Redmon ◽  
Keith Levine
Keyword(s):  
Public Health ◽  
Organic Contaminants ◽  
Universal Access ◽  
Chemical Pollution ◽  
Global Public Health ◽  
Sanitation And Hygiene ◽  
Conference Presentations ◽  
Development Goals ◽  
Poster Presentations

Abstract The anthropogenic release of chemicals from industry, agriculture and the breakdown of consumer wastes constitute a major threat to water resources and public health. Pollution is severe and increasing in the developing world where chemical substances are produced, used, and disposed of in an unregulated manner. The global public health consequences of chemical pollution are comparable to or greater than those of widespread infectious diseases such as HIV/AIDS, tuberculosis, and malaria. However, chemicals have so far been neglected by the WaSH sector. Here, we report the results of a systematic review of the Journal of Water, Sanitation, and Hygiene for Development (2011–2018) and oral/poster presentations given at the UNC Water & Health Conference (2010–2018). The review enumerated studies that focused on water quality and treatment from a chemical perspective, highlighting in particular organic contaminants of emerging concern. Organic chemicals were addressed in only 2% of journal articles and fewer than 0.7% of conference presentations. Geogenic contaminants arsenic and fluoride were only addressed in 2–3% of articles and presentations. The review concludes that a rapid, major effort to address toxic chemicals in WaSH is necessary to meet UN Sustainable Development Goals for universal access to safe and affordable drinking water by 2030.

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