Results 71 to 80 of about 46,405 (194)

Removal of Phenol Compounds from Aqueous Solution Using Coated Sand Filter Media

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2013
Coated sand (CS) filter media was investigated to remove phenol and 4-nitrophenol from aqueous solutions in batch experiments. Local sand was subjected to surface modification as impregnated with iron.
Asrar Al-Obaidy
doaj  

4-Nitrophenol–urea (1/1)

open access: yesActa Crystallographica Section E Structure Reports Online, 2005
In the title compound, C6H5NO3·CH4N2O, 4-nitro­phenol mol­ecules are linked to urea mol­ecules by O—H⋯O and N—H⋯O hydrogen bonds, forming a network structure.
Ya-Juan Zhao, Xin-Hua Li
openaire   +1 more source

Electronic Nose‐Based Methanol Feedback Precision Control Strategy for High‐Yield Alkaline Phosphatase Fermentation by Hansenula polymorpha

open access: yesFood Bioengineering, EarlyView.
Establishment of Closed‐Loop Methanol Feedback Precision Control System for Alkaline Phosphatase by Hansenula polymorpha. The electronic nose screened model for methanol detection as the core technical logic of online gas quantification. Methanol feedback control strategy for greatly elevating alkaline phosphatase production.
Jian‐Guang Liang   +6 more
wiley   +1 more source

Comparative Adsorption of Nitrophenols on Macroporous Resin and Newly-Synthesized Hypercrosslinked Resin

open access: yesAdsorption Science & Technology, 2003
The comparative adsorption of o -nitrophenol, m -nitrophenol and p- nitrophenol onto a macroporous polymeric adsorbent (Amberlite XAD-4) and a hypercrosslinked polymeric adsorbent (NJ-8) was investigated. Adsorption equilibrium isotherms were measured by
Yuping Qiu   +6 more
doaj   +1 more source

Removal of three nitrophenols from aqueous solutions by adsorption onto char ash: equilibrium and kinetic modeling

open access: yesApplied Water Science, 2018
In this research, the removal of 2,4 dinitrophenol, 2 nitrophenol and 4 nitrophenol from aqueous solution using char ash from animal bones was investigated using batch technique. Three 2-parameter isotherms (Freundlich, Langmuir, and Temkin) were applied
Yehia M. Magdy   +2 more
doaj   +1 more source

Fermentation‐Induced Modulation of Polyphenolic Contents and Medicinal Activities in Annona squamosa Seeds

open access: yesFood Chemistry International, EarlyView.
The study compared the medicinal activities of polyphenols from fermented and unfermented seeds of Annona squamosa. The polyphenols were extracted and subjected to standard analysis. The major phenolic components of the fermented polyphenols and the unfermented polyphenols were found to be 4‐hydroxybenzoic and 4‐hydroxyphenylacetic acid, respectively ...
Shola Hezekiah Awojide   +10 more
wiley   +1 more source

Effect of Various Additives on Photocatalytic Degradation of 4‐Nitrophenol

open access: yesJournal of Chemistry, 2009
The photocatalytic degradation of 4‐nitrophenol (4‐NP) assisted by titanium dioxide (TiO2) was investigated in aqueous suspension under irradiation by UV light. The effect of different supporting materials mixed physically with TiO2on the photocatalytic degradation of 4‐NP has been studied. TiO2 with all supports exhibits good degradation efficiency of
Kashif Naeem, Feng Ouyang
openaire   +2 more sources

Donkwa Enriched With Goron‐Tula (Azanza garckeana) Modulates Sexual Behavior and Activity of Enzymes Linked With Erectile Dysfunction in High‐Fat Diets/ Streptozotocin‐Induced (STZ/HFD) Diabetic Rats

open access: yesFood Chemistry International, EarlyView.
(A) Mount number, (B) mount latency, (C) intromission number, and (D) intromission latency are the parameters of sexual behavior. Met = metformin. D100 = 100 Donkwa. D90G10 = 90% Donkwa + 10% Goron‐Tula. D85G15 = 85% Donkwa + 15% Goron‐Tula. D80G20 = 80% Donkwa + 20% Goron‐Tula. The mean ± standard error of the mean (SEM) expressed the results. *Values
O. T. Mamukuyomi   +2 more
wiley   +1 more source

Nitrogen Fertilization Temporarily Enhances Phosphatase Activity in a High‐P Loamy Sand

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Efficient plant utilization of soil phosphorus (P) is essential to reduce dependence on mineral P fertilizers in intensive agriculture. Input of mineral nitrogen (N) fertilizers and its chemical form may influence the activity of P mineralizing enzymes, but how this interaction operates under field conditions in a soil with high P ...
Ingeborg F. Pedersen   +3 more
wiley   +1 more source

Toward Sustainable Enzyme Production From Agro‐Industrial Residues: Optimizing pH and Soyhull Particle Size in Fungal Fermentation

open access: yesJournal of Surfactants and Detergents, EarlyView.
Sustainable enzyme production from soyhull fermentation. ABSTRACT Carbohydrase enzymes are critical to sustainable detergent formulations, enabling effective cleaning at lower temperatures and reduced resource use. To improve the economic and environmental viability of enzyme production, this study explored soybean hulls—a low‐value agricultural by ...
Ashwin Sancheti, Lu‐Kwang Ju
wiley   +1 more source

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