How anammox responds to the emerging contaminants: Status and mechanisms

2021 ◽  
Vol 293 ◽  
pp. 112906
Author(s):  
Ye Wang ◽  
Xiao-Ming Ji ◽  
Ren-Cun Jin
Keyword(s):  
Emerging Contaminants

scholarly journals Environmental impact of emerging contaminants from battery waste: A mini review

2021 ◽  
Vol 3 ◽  
pp. 100104
Author(s):  
Elda M. Melchor-Martínez ◽  
Rodrigo Macias-Garbett ◽  
Alonso Malacara-Becerra ◽  
Hafiz M.N. Iqbal ◽  
Juan Eduardo Sosa-Hernández ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Emerging Contaminants

scholarly journals Removal of Emerging Pollutants from Water Using Environmentally Friendly Processes: Photocatalysts Preparation, Characterization, Intermediates Identification and Toxicity Assessment

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 215
Author(s):  
Nina Finčur ◽  
Paula Sfîrloagă ◽  
Predrag Putnik ◽  
Vesna Despotović ◽  
Marina Lazarević ◽  
...  
Keyword(s):  
Emerging Contaminants ◽  
Sol Gel ◽  
Toxicity Assessment ◽  
Emerging Pollutants ◽  
Simulated Sunlight ◽  
Aquatic Life ◽  
Mgo Nanoparticles ◽  
Emerging Pollutant ◽  
Wheat Germination ◽  
Modern Technologies

Pharmaceuticals and pesticides are emerging contaminants problematic in the aquatic environment because of their adverse effects on aquatic life and humans. In order to remove them from water, photocatalysis is one of the most modern technologies to be used. First, newly synthesized photocatalysts were successfully prepared using a sol–gel method and characterized by different techniques (XRD, FTIR, UV/Vis, BET and SEM/EDX). The photocatalytic properties of TiO2, ZnO and MgO nanoparticles were examined according to their removal from water for two antibiotics (ciprofloxacin and ceftriaxone) and two herbicides (tembotrione and fluroxypyr) exposed to UV/simulated sunlight (SS). TiO2 proved to be the most efficient nanopowder under UV and SS. Addition of (NH4)2S2O8 led to the faster removal of both antibiotics and herbicide fluroxypyr. The main intermediates were separated and identified for the herbicides and antibiotic ciprofloxacin. Finally, the toxicity of each emerging pollutant mixture and formed intermediates was assessed on wheat germination and biomass production.

scholarly journals Chitosan Adsorbent Derivatives for Pharmaceuticals Removal from Effluents: A Review

Macromol ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 130-154
Author(s):  
Efstathios V. Liakos ◽  
Maria Lazaridou ◽  
Georgia Michailidou ◽  
Ioanna Koumentakou ◽  
Dimitra A. Lambropoulou ◽  
...  
Keyword(s):  
Emerging Contaminants ◽  
Low Cost ◽  
Value Added ◽  
Ph Effects ◽  
Hydroxyl Groups ◽  
Research Papers ◽  
Natural Polysaccharide ◽  
Best Fitting ◽  
Isotherm And Kinetic Models ◽  
Published Research

Chitin is mentioned as the second most abundant and important natural biopolymer in worldwide scale. The main sources for the extraction and exploitation of this natural polysaccharide polymer are crabs and shrimps. Chitosan (poly-β-(1 → 4)-2-amino-2-deoxy-d-glucose) is the most important derivative of chitin and can be used in a wide variety of applications including cosmetics, pharmaceutical and biomedical applications, food, etc., giving this substance high value-added applications. Moreover, chitosan has applications in adsorption because it contains amino and hydroxyl groups in its molecules, and can thus contribute to many possible adsorption interactions between chitosan and pollutants (pharmaceuticals/drugs, metals, phenols, pesticides, etc.). However, it must be noted that one of the most important techniques of decontamination is considered to be adsorption because it is simple, low-cost, and fast. This review emphasizes on recently published research papers (2013–2021) and briefly describes the chemical modifications of chitosan (grafting, cross-linking, etc.), for the adsorption of a variety of emerging contaminants from aqueous solutions, and characterization results. Finally, tables are depicted from selected chitosan synthetic routes and the pH effects are discussed, along with the best-fitting isotherm and kinetic models.

Ball-milling synthesis of biochar and biochar–based nanocomposites and prospects for removal of emerging contaminants: A review

2021 ◽  
Vol 41 ◽  
pp. 101993
Author(s):  
Sefiu Olaitan Amusat ◽  
Temesgen Girma Kebede ◽  
Simiso Dube ◽  
Mathew Muzi Nindi
Keyword(s):  
Ball Milling ◽  
Emerging Contaminants

scholarly journals Mining chemical information in Swedish wastewaters for simultaneous assessment of population consumption, treatment efficiency and environmental discharge of illicit drugs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Inga Haalck ◽  
Paul Löffler ◽  
Christine Baduel ◽  
Karin Wiberg ◽  
Lutz Ahrens ◽  
...  
Keyword(s):  
Illicit Drugs ◽  
Emerging Contaminants ◽  
Chemical Information ◽  
Treatment Efficiency ◽  
Daily Consumption ◽  
Urban Populations ◽  
The Public ◽  
Target Drug ◽  
Similar Drug ◽  
Almost All

AbstractConsumption of illicit drugs poses health risks to the public and environment. Knowledge on their usage helps better implementations of intervention strategies to reduce drug-related harms in the society and also policies to limit their releases as emerging contaminants to recipient environments. This study aimed to investigate from the daily consumption to treatment efficiency and subsequent discharge of illicit drugs by the Swedish urban populations based on simultaneous collection and analysis of influent and effluent wastewater. Two different weekly monitoring campaigns showed similar drug prevalence in Stockholm and Uppsala, with amphetamine as the most popular drug. Almost all target drug residues were still measurable in effluent wastewater. High removal efficiencies (> 94%) were observed for amphetamine, cocaine and benzoylecgonine, whereas ketamine, 3,4-methylenedioxymethamphetamine (MDMA), mephedrone and methamphetamine were the least removed substances (< 64%), with the highest discharge observed for MDMA in both catchments (~ 3.0 g/day in Uppsala; ~ 18 g/day in Stockholm). Our study provides new insights into short-term changes in the use and related discharge of illicit drugs by urban populations. Such wastewater monitoring can provide useful information to public health, forensic and environmental authorities in planning future intervention and regulation policies.

Degradation of emerging contaminants by acclimated activated sludge

2017 ◽  
Vol 39 (15) ◽  
pp. 1985-1993 ◽  
Author(s):  
Shizong Wang ◽  
Jianlong Wang
Keyword(s):  
Activated Sludge ◽  
Emerging Contaminants ◽  
Acclimated Activated Sludge

scholarly journals Catalytic activity of metals in heterogeneous Fenton-like oxidation of wastewater contaminants: a review

2021 ◽  
Author(s):  
Sajid Hussain ◽  
Eleonora Aneggi ◽  
Daniele Goi
Keyword(s):  
Catalytic Activity ◽  
Emerging Contaminants ◽  
Influencing Factor ◽  
Oxidation Products ◽  
Metal Oxidation ◽  
Heterogeneous Fenton ◽  
Solution Ph ◽  
Copper Manganese ◽  
Different Types ◽  
Metallic Catalyst

AbstractInnovations in water technology are needed to solve challenges of climate change, resource shortages, emerging contaminants, urbanization, sustainable development and demographic changes. In particular, conventional techniques of wastewater treatment are limited by the presence of poorly biodegradable organic matter. Alternatively, recent Fenton, Fenton-like and hybrid processes appear successful for cleaning of different types of liquid wastewaters. Here, we review the application of metallic catalyst-H2O2 systems in the heterogeneous Fenton process. Each metallic catalyst-H2O2 system has unique redox properties due to metal oxidation state. Solution pH is a major influencing factor. Catalysts made of iron and cerium form stable complexes with oxidation products and H2O2, thus resulting in reduced activities. Copper forms transitory complexes with oxidation products, but copper catalytic activity is restored during the reaction. Silver and manganese do not form complexes. The catalyst performance for degradation and mineralization decreases in the order: manganese, copper, iron, silver, cerium, yet the easiness of practical application decreases in the order: copper, manganese, iron, silver, cerium.

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