In situ polar organic chemical integrative sampling (POCIS) of steroidal estrogens in sewage treatment works discharge and river water

2011 ◽  
Vol 13 (5) ◽  
pp. 1427 ◽  
Author(s):  
Thitima Rujiralai ◽  
Ian D. Bull ◽  
Neville Llewellyn ◽  
Richard P. Evershed
Keyword(s):  
River Water ◽  
Sewage Treatment ◽  
Organic Chemical

Separation of phenols from oils using deep eutectic solvents and ionic liquids

2020 ◽  
Vol 92 (10) ◽  
pp. 1717-1731
Author(s):  
Yucui Hou ◽  
Zhi Feng ◽  
Jaime Ruben Sossa Cuellar ◽  
Weize Wu
Keyword(s):  
Ionic Liquids ◽  
Phenolic Compounds ◽  
High Efficiency ◽  
Deep Eutectic Solvents ◽  
Environmentally Benign ◽  
Organic Chemical ◽  
Environmental Friendliness ◽  
Oil Mixtures ◽  
Organic Chemical Industry

AbstractPhenolic compounds are important basic materials for the organic chemical industry, such as pesticides, medicines and preservatives. Phenolic compounds can be obtained from biomass, coal and petroleum via pyrolysis and liquefaction, but they are mixtures in oil. The traditional methods to separate phenols from oil using alkaline washing are not environmentally benign. To solve the problems, deep eutectic solvents (DESs) and ionic liquids (ILs) have been developed to separate phenols from oil, which shows high efficiency and environmental friendliness. In this article, we summarized the properties of DESs and ILs and the applications of DESs and ILs in the separation of phenols and oil. There are two ways in which DESs and ILs are used in these applications: (1) DESs formed in situ using different hydrogen bonding acceptors including quaternary ammonium salts, zwitterions, imidazoles and amides; (2) DESs and ILs used as extractants. The effect of water on the separation, mass transfer dynamics in the separation process, removal of neutral oil entrained in DESs, phase diagrams of phenol + oil + extractant during extraction, are also discussed. In the last, we analyze general trends for the separation and evaluate the problematic or challenging aspects in the separation of phenols from oil mixtures.

scholarly journals In situ calibration of polar organic chemical integrative sampler (POCIS) for monitoring of pharmaceuticals in surface waters

2021 ◽  
Vol 269 ◽  
pp. 116121
Author(s):  
Branislav Vrana ◽  
Jakub Urík ◽  
Ganna Fedorova ◽  
Helena Švecová ◽  
Kateřina Grabicová ◽  
...  
Keyword(s):  
Surface Waters ◽  
Organic Chemical ◽  
In Situ Calibration

Integrated management of the Upper Mersey river basin using the SMILE object-oriented software system

2002 ◽  
Vol 46 (6-7) ◽  
pp. 105-112 ◽  
Author(s):  
M. Spanou ◽  
D. Chen
Keyword(s):  
Water Quality ◽  
River Water ◽  
Integrated Management ◽  
Sewage Treatment ◽  
Object Oriented ◽  
River Water Quality ◽  
Alternative Methods ◽  
River Flows ◽  
Total Ammonia ◽  
The Impact

This paper presents the application of the object-oriented framework SMILE to the management of flows and water quality in the Upper Mersey river catchment. The design river flows are those exceeded for 95% of the time, and are estimated applying alternative methods. The influence of compensation reservoirs, surface-water abstractions, and continuous discharges on low river flows is quantified. The annual licensed abstraction volumes are further reviewed. The monitored river water quality is classified using the River Ecosystem scheme. The compliance of the sewage treatment works and trade effluents with their discharge-consent limits is also assessed. The impact of effluents on the variation of river water quality is evaluated through Monte Carlo simulations at the discharge points. The points where the downstream water quality fails to comply with proposed River Quality Objectives are identified. The consent limits of the corresponding discharges are assessed, and changes to the BOD and total ammonia limits are suggested.

scholarly journals Site-specific impacts on gene expression and behavior in fathead minnows (Pimephales promelas) exposed in situ to streams adjacent to sewage treatment plants

2009 ◽  
Vol 10 (Suppl 11) ◽  
pp. S11 ◽  
Author(s):  
Natàlia Garcia-Reyero ◽  
Ira R Adelman ◽  
Dalma Martinović ◽  
Li Liu ◽  
Nancy D Denslow
Keyword(s):  
Gene Expression ◽  
Pimephales Promelas ◽  
Sewage Treatment ◽  
Fathead Minnows ◽  
Site Specific ◽  
Sewage Treatment Plants ◽  
And Behavior
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