Listing 1 - 10 of 85 | << page >> |
Sort by
|
Choose an application
Choose an application
Choose an application
The gas phase direct hydroxylation of benzene into phenol with hydrogen and oxygen, as initially described by Niwa in 2002, was realized in a newly developed double-membrane reactor. In the concept described by Niwa, a dense Pd membrane is used for the (safe) dosage of dissociated hydrogen species into the tubular reaction zone, where it reacts with gas phase oxygen to form surface species capable of directly converting benzene into phenol in a single-step process.
Pd-Membran --- Katalyse --- Phenol --- Benzol
Choose an application
Phenol and chlorophenols are among the most important class of raw materials in chemical industry. These compounds also list among priority pollutants. The main problem in treating phenol or chlorophenol containing wastewater is the toxicity it exerts to the microbial flora in biological treatment plants. This may lead to partial or complete treatment plant failure, when the microbial flora is not adapted to phenol concentrations in the influent. The purpose of this thesis was to adapt the microbial flora of domestic sewage sludge to phenol and 2-chlorophenol at high concentration under continuous feeding conditions for long time periods and to study the response of suspension and fixed biofilm systems to transient loading and operation.
2-chlorophenol --- Phenol --- fixed bed --- biodegradation --- suspension
Choose an application
Groundwater --- Phenol --- Pollution --- Pollution. --- Environmental aspects --- Florida
Choose an application
Phenol --- Toxicology. --- Physiological effect. --- Environmental aspects.
Choose an application
Groundwater --- Phenol --- Pollution --- Environmental aspects --- Florida
Choose an application
Phenol --- Waste spills --- Environmental aspects --- Environmental aspects
Choose an application
Phenol --- Toxicology. --- Physiological effect. --- Environmental aspects.
Choose an application
Phenol --- Chemicals --- Health aspects --- Environmental aspects --- Safety measures.
Listing 1 - 10 of 85 | << page >> |
Sort by
|