Results 81 to 90 of about 4,756 (214)

Biological Treatment of a Landfill Leachate Containing Phenoxy Herbicides and Chlorophenols

, 1991
A biological treatment process has been developed for a landfill leachate containing phenoxyacetic acid herbicides and their associated chlorophenols. The mixed microbial population (Pseudomonas sp.) enriched from soil was capable of mineral ising the ...
R. Chong, P. J. McAllister, G. J. Manderson, S. M. Rao Bhamidimarri   +3 more
core   +1 more source

Divergent roles of CprK paralogues from Desulfitobacterium hafniense in activating gene expression [PDF]

, 2008
Gene duplication and horizontal gene transfer play an important role in the evolution of prokaryotic genomes. We have investigated the role of three CprK paralogues from the cAMP receptor protein-fumarate and nitrate reduction regulator (CRP-FNR) family ...
Vos, W.M., de, Smidt, H., Gabor, K., Sene, K.H., Oost, J., van der   +4 more
core   +1 more source

Aquatic Toxicity and Ecological Risk Assessment of Chlorophenol Compounds

Yankuang ceshi
Chlorophenols (CPs) are characterized as persistent organic pollutants (POPs) and tend to accumulate in aquatic environments, raising significant concerns regarding their aquatic toxicity and ecological risks.
Zeyang LIU, Chun XU, Shuhai SUN
doaj   +1 more source

COMBINED BIOLOGICAL-PHOTOCATALYTIC TREATMENT FOR THE MINERALIZATION OF A MIXTURE OF CHLOROPHENOLS IN AN ELECTROLYTE-CONTAINING MODEL WATER AND SPONTANEOUS SEDIMENTATION OF TITANIUM DIOXIDE

Indonesian Journal of Chemistry, 2010
To shorten the biological treating time and to examine the effect of electrolytes in a model water on the photocatalytic treatment, the combined biological-photocatalytic treatment was evaluated for removal of a mixture (total: 100 mg L-1, each: 25 mg L ...
Dhanus Suryaman, Kiyoshi Hasegawa, Shigehiro Kagaya, Toshiaki Yoshimura   +3 more
doaj   +1 more source

Modeling of Adsorption Isotherms of Phenol and Chlorophenols onto Granular Activated Carbon—Part III: Additional Isotherm Formulations and a C₅₀-Normalized Descriptor-Coupled Generalized Model

Separations
Related adsorbates are commonly fitted with independent adsorption isotherms, limiting parameter transfer across a chemical family. The equilibrium adsorption of phenol (Ph), 2-chlorophenol (2-CP), 4-chlorophenol (4-CP), 2,4-dichlorophenol (DCP), and 2,4,
Oualid Hamdaoui
doaj   +1 more source

Effect of the Mg/Al Ratio on Activated Sol-Gel Hydrotalcites for Photocatalytic Degradation of 2,4,6-Trichlorophenol

International Journal of Photoenergy, 2017
Currently, interest has grown in finding effective solutions for the treatment of water pollution by toxic compounds. Some of the latter that have acquired importance are phenols and chlorophenols, due to their employment in the manufacture of pesticides,
Esthela Ramos-Ramírez, Norma L. Gutiérrez-Ortega, Francisco Tzompantzi-Morales, Gloria A. Del Ángel, Claudia Martínez-Gómez, Elizabeth Pabón-Gelves   +5 more
doaj   +1 more source

Activated Sludge Treatment of Phenoxy Herbicides and Chlorophenols

, 1993
A laboratory scale activated sludge treatment system was developed for the treatment of phenoxy herbicide chemicals and the associated chlorophenols in a toxic landfill leachate. A novel sludge recycle system was employed to ensure high specific activity
R. Chong, P. J. McAllister, G. J. Manderson, S. M. Rao Bhamidimarri   +3 more
core   +1 more source

INHIBITING ACTION OF CHLOROPHENOLS ON BIODEGRADATION OF PHENOL AND ITS CORRELATION WITH STRUCTURAL-PROPERTIES OF INHIBITORS

, 1988
An activated sludge conditioned to a low concentration of phenol was used for the biodegradation of phenol in the presence of chlorophenols, measuring the inhibiting action of all the latter compounds and expressing it as p///5//0.
Cecilia Lanzetta, Paolo Beltrame, Pier Luigi Beltrame, Donatella Guardione, C. LANZETTA, P. CARNITI, P. L. BELTRAME, D. GUARDIONE, P. BELTRAME, Paolo Carniti   +9 more
core   +1 more source

The effect of chlorinated monoaromatic hydrocarbons on biological membranes(Comparison of the effect of chlorobenzenes and chlorophenols on biomembranes) [PDF]

, 1986
A comparative study on the effect of chlorobenzenes and chlorophenols on mitochondrial membranes was conducted. An increase in chlorine residue from both chlorobenzenes and chlorophenols caused a decrease in respiratory control index (RCI). Chlorophenols
Mori, Takaaki
core  

Highly Selective Synthesis of Chlorophenols under Microwave Irradiation

Journal of Chemistry, 2016
Oxychlorination of various phenols is finished in 60 minutes with high efficiency and perfect selectivity under microwave irradiation. These reactions adopt copper(II) chloride (CuCl2) as the catalyst and hydrochloric acid as chlorine source instead of ...
Yawen Xiong, Hongdong Duan, Xia Meng, Zhaoyun Ding, Weichun Feng   +4 more
doaj   +1 more source