nitrophenols and lead-nitrate

nitrophenols has been researched along with lead-nitrate* in 2 studies

Other Studies

2 other study(ies) available for nitrophenols and lead-nitrate

Article	Year
Sorption of p-nitrophenol onto sediment in the presence of cetylpyridinium chloride and Pb(NO3)2: influence of pH. Journal of hazardous materials, 2008, Jun-30, Volume: 155, Issue:1-2 pH and the presence of compounds have a great effect on the sorption of organic contaminants. In this study, batch equilibrium experiments were carried out to investigate the influence of pH on the sorption of p-nitrophenol (PNP) onto sediment in the presence of Pb(NO3)2 and cetylpyridinium chloride (CPC) cationic surfactant. Results indicated that in the multi-solute system with PNP, Pb(NO3)2 and CPC, the sorption of PNP increased with the increasing pH and the amount of sorbed PNP at equilibrium was much higher than in the single-solute system. This can be attributed to the presence of Pb(NO3)2 and CPC. It is believed that the main reason for that was the larger sorption of CPC at higher pH allowing higher sorption of PNP. The results are believed to provide a useful insight into describing the transport and fate of PNP in natural environments. Topics: Adsorption; Cetylpyridinium; Geologic Sediments; Hydrogen-Ion Concentration; Lead; Nitrates; Nitrophenols; Water Pollutants, Chemical	2008
[Effects of Pb(NO3)2 and cetylpyridinium chloride on sorption of p-nitrophenol by sediment]. Huan jing ke xue= Huanjing kexue, 2006, Volume: 27, Issue:7 Sorption behavior of p-nitrophenol by sediment in the presence of both cetylpyridinium chloride (CPC) and Pb(NO3)2 were investigated. The concurrence of Pb(NO3)2 inhibited the enhancement of sorption induced by CPC. The removal effect of pnitrophenol from sediment by compounding of CPC and Pb(NO3)2 presented antagonistic effect. At a given concentration of CPC, the antagonistic effect increased with increasing of the initial concentration of Pb(NO3)2. The antagonistic effect was also dependent on CPC concentrations. At the initial concentration below 3000 mg/L(the equilibrium concentration was below CMC), the antagonistic effect was especially significant. With the increase of the concentration of CPC, the antagonistic effect decreased gradually. Especially at the higher concentration above CMC, the effect went to be an independent effect just induced by CPC. In addition, the study also indicate that Pb2+ and CPC may not compete for the same adsorption sites. Topics: Adsorption; Cetylpyridinium; Geologic Sediments; Lead; Nitrates; Nitrophenols; Surface-Active Agents; Water Pollutants, Chemical	2006

Article

Year

Sorption of p-nitrophenol onto sediment in the presence of cetylpyridinium chloride and Pb(NO3)2: influence of pH.

Journal of hazardous materials, 2008, Jun-30, Volume: 155, Issue:1-2

pH and the presence of compounds have a great effect on the sorption of organic contaminants. In this study, batch equilibrium experiments were carried out to investigate the influence of pH on the sorption of p-nitrophenol (PNP) onto sediment in the presence of Pb(NO3)2 and cetylpyridinium chloride (CPC) cationic surfactant. Results indicated that in the multi-solute system with PNP, Pb(NO3)2 and CPC, the sorption of PNP increased with the increasing pH and the amount of sorbed PNP at equilibrium was much higher than in the single-solute system. This can be attributed to the presence of Pb(NO3)2 and CPC. It is believed that the main reason for that was the larger sorption of CPC at higher pH allowing higher sorption of PNP. The results are believed to provide a useful insight into describing the transport and fate of PNP in natural environments.

Topics: Adsorption; Cetylpyridinium; Geologic Sediments; Hydrogen-Ion Concentration; Lead; Nitrates; Nitrophenols; Water Pollutants, Chemical

2008

[Effects of Pb(NO3)2 and cetylpyridinium chloride on sorption of p-nitrophenol by sediment].

Huan jing ke xue= Huanjing kexue, 2006, Volume: 27, Issue:7

Sorption behavior of p-nitrophenol by sediment in the presence of both cetylpyridinium chloride (CPC) and Pb(NO3)2 were investigated. The concurrence of Pb(NO3)2 inhibited the enhancement of sorption induced by CPC. The removal effect of pnitrophenol from sediment by compounding of CPC and Pb(NO3)2 presented antagonistic effect. At a given concentration of CPC, the antagonistic effect increased with increasing of the initial concentration of Pb(NO3)2. The antagonistic effect was also dependent on CPC concentrations. At the initial concentration below 3000 mg/L(the equilibrium concentration was below CMC), the antagonistic effect was especially significant. With the increase of the concentration of CPC, the antagonistic effect decreased gradually. Especially at the higher concentration above CMC, the effect went to be an independent effect just induced by CPC. In addition, the study also indicate that Pb2+ and CPC may not compete for the same adsorption sites.

Topics: Adsorption; Cetylpyridinium; Geologic Sediments; Lead; Nitrates; Nitrophenols; Surface-Active Agents; Water Pollutants, Chemical

2006