An anaerobic sludge (AS), capable of decolorizing a variety of synthetic dyes, was acclimated and is reported here. The sludge presented a much better dye decolorizing ability than that of different individual strains. A broad spectrum of dyes could be decolorized by the sludge. Continuous decolorization tests showed that the sludge exhibited the ability to decolorize repeated additions of dye....

Removal of sludges from Wastewater Treatment Plants (WWTP) represents a serious worldwide environmental problem for which alternatives other than their simple incineration are investigated. In this work the treatment of raw sludge from urban WWTP by means of a minimization process through spray-drying is analyzed as well as some proposals for revaluating the resulting dry product. Analysis is s...

Cupriavidus sp. HMR-1 was isolated from a heavy metal-enriched culture of activated sludge from a wastewater treatment plant in Hong Kong. Here, we release the HMR-1 genome to provide basic genetic characteristics for a better understanding of its multiple heavy metal resistance properties.

Pseudomonas citronellolis SJTE-3, isolated from the active sludge of a wastewater treatment plant in China, can utilize a series of environmental estrogens and estrogen-like toxicants. Here, we report its whole-genome sequence, containing one circular chromosome and one circular plasmid. Genes involved in estrogen biodegradation in this bacterium were predicted.

We report the genome sequence of Clostridium sp. strain DL-VIII, a novel Gram-positive, endospore-forming, solventogenic bacterium isolated from activated anaerobic sludge of a wastewater treatment plant. Aside from a complete sol operon, the 6,477,357-bp genome of DL-VIII reveals genes for several unique enzymes with applications in lignocellulose degradation, including two phenolic acid decar...

Delftia tsuruhatensis is a non-glucose fermenting, oxidase positive, motile, gram-negative bacillus first isolated from activated sludge collected from a domestic wastewater treatment plant in Japan. To the best of our knowledge only one case of infection with Delftia tsuruhatensis exists in the medical literature. This is the second case report of human infection having Delftia tsuruhatensis a...

Sphingobium sp. strain YL23, a novel bacterium isolated from sewage sludge of a domestic wastewater treatment plant, has been shown to completely degrade bisphenol A under aerobic conditions. Here, we describe a 3.8-Mb assembly of its genome sequence and major findings from its annotation.

The activated sludge process is commonly used to treat wastewater by aerobic oxidation of organic pollutants into carbon dioxide and water. However, several nonoxidative mechanisms can also contribute to removal of organics. Sorption onto activated sludge can remove a large fraction of the colloidal and particulate wastewater organics. Intracellular storage of, e.g., polyhydroxyalkanoates (PHA)...

In this study, characterization of filtrated cake of sludge drying section from a petroleum refinery wastewater treatment plant in Melaka was carried out with the objective to analyze its chemical, physical and fuel characteristics. Proximate analysis, ultimate analysis and higher heating value (HHV) are very important in chemical and fuel characterization. Dielectric properties and density tes...

The lack of fresh water is one of the major threats for people. The extremely sufficient and cost saving methods for water and wastewater treatment must be applied. The paper shows possibility of using traditional Dissolved Air Flotation method (DAF) with alternation of feeding gas by ozone (Dissolved Ozone Flotation – DOF) instead of air to obtain better treatment results and possibilities of ...