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Biodegradation and Decolorization of Reactive Orange 16 by Nocardiopsis alba Soil Isolate
A bacterium identified as Nocardiopsis alba was isolated from acclimated sludge from a dyeing wastewater treatment plant. This strain rapidly decolorized Reactive orange16 (RO16) at 0.1% (w/v) concentration of both sucrose and peptone supplemented in Mineral Salt Medium (MSM) under static conditions at a temperature of 30°C .. Read More
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Biodegradation of Tertiary Butyl Mercaptan in Water
Tertiary butyl mercaptan (TBM) belongs to the alkyl mercaptan family and possesses a characteristic odor. Tertiary butyl mercaptan (TBM) can enter aquatic environments through anthropogenic activities as well as the natural processes. Undefined microbial cultures from different soils along with a pure culture were used to study .. Read More
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Use of Dissolved Organic Carbon to Biostimulate Rapid Rhizodegradation of Perchlorate in Soil
The main limitation to biodegradation of perchlorate in most soils and groundwater tends to be the availability of an adequate supply of organic carbon or electron donors. This study investigated the use of electron sources provided as Dissolved Organic Carbon (DOC) from chicken litter extract and acetate to enhance and sustain .. Read More
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Aspergillus allhabadii MTCC 9988 isolated from pesticides sprayed cotton growing soil, were evaluated for decolorization of a textile dye, Reactive Black HFGR. The physiochemical parameters (shaking vs. static, pH, temperature, dye concentration and different carbon sources) were optimized and tested their effect on the degradat.. Read More
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Environmental pollution is considered a serious problem in Europe. It has been regulated by several directives with the aim of limiting the amount of pollutants that can reach the environment. Five years ago, on the 1st of January 2007, Romania became one of the European Union members. In the following years Romania had to compl.. Read More
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Potential Applications of Cyanobacteria in Industrial Effluents-A Review
Biodiversity and its application of cyanobacteria for the treatment of domestic and industrial effluents have received more attention during the recent years. Cyanobacteria have the capacity to utilize nitrogenous compounds, ammonia and phosphates; in addition, they accumulate metal ions such as Cr, Co, Cu and Zn very effectivel.. Read More
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Evaluation of Metal Biosorption by the Fungus Pleurotus sajor-caju on Modified Polyethylene Films
Metal ions, such as Fe +3 , Mn +2 and Co +2 , are present in the formulations of pro-degrading additives and represent a means to accelerate the degradation of post-consumer plastics. When incorporated into the polymer, the pro- degradant additive serves to accelerate the degradation of the polymeric chain through oxidation init.. Read More
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In this study, an Artificial Neural Network (ANN) was developed as a predictive tool for identifying optimal remediation conditions for groundwater contaminants that include selected metals found at coal mining sites. The ANN was developed from a previous field data obtained from a bioremediation project at an abandoned mine at .. Read More
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Stabilizing Role of Nanodiamonds on the Amaranth Transformation in Model Biofilters
The present article is focused on studying the first phase of a model dye biodegradation, the reduction of the azo bond, and the following amaranth decolorization. This phase is speed-limiting, i.e. it defines the speed of the whole process. The process is with a periodic regime of feeding and is simulated in reactors of the &ld.. Read More
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Plant nurseries apply large amounts of agricultural chemicals that may run off causing problems to surface water. Constructed wetlands have been used to treat agricultural chemical runoff. A 128 m2 gravel subsurface flow constructed wetland was designed and installed at Pirtle’s Nursery in Smithville, TN. The wetland was 4.. Read More
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Aerobic Treatment of Handmade Paper Industrial Effluents by White Rot Fungi
Modernization of handmade paper industries has led to increase in production capacity for fulfilling demand. This also leads to the use of chemicals and dyes to make attractive and colourful papers. These industries recycle white and coloured cotton rags procured from textile industries. After processing and making paper, these .. Read More
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A number of environmental samples were collected from different locations in Egypt. Briefly, 9 bacterial strains and 4 algal strains were isolated and characterized. All isolated bacterial strains showed a remarkable ability to tolerate and/or biodegrade phenol (aromatic pollutant) and pyridine (hetero-aromatic pollutant). Pheno.. Read More
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Compost extracts may potentially benefit plant growth through a direct nutritional benefit, through increased mineralisation or solubilisation, through disease protection or by detoxification of the soil environment. Tomato ( Lycopersicum esculentum cv. Tiny Tim) and a subsequent sorghum ( Sorghum bicolor cv. Sweet Jumbo LPA) gr.. Read More
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In 1996, the first EPA sanctioned release of a recombinant microbe (Pseudomonas fluorescens HK44) into the subsurface soil environment was initiated in a replicated semi-contained array of soil lysimeters. With an aim to access the survivability/environmental fate of HK44, soil sampling was performed 14 years post release. Altho.. Read More
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Biodegradation of Crude Oil by Fungi Isolated from Gulf of Mexico
In the present study, sand samples contaminated with oil spill were collected from Pensacola beach (Gulf of Mexico) and tested to isolates fungal diversity associated with beach sands and investigates the ability of isolated fungi for crude oil biodegradation. From sixteen fungal strains, four strains were confirmed for biodegra.. Read More
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A new additive Ferrous (Fe) and Nickel (Ni)12-hydroxy oleate was successfully synthesized and their performance on the photo degradability of polyethylene (LDPE) films were evaluated by observing the disparity in the structural characteristic, surface morphology, mechanical, and thermal properties upon degradation. LDPE films bl.. Read More
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Biodegradation of Polyethylene by a Soil Bacterium and AlkB Cloned Recombinant Cell
A mesophilic bacterium capable of Low-Molecular-Weight Polyethylene (LMWPE) biodegradation was isolated from a beach soil having been contaminated extensively with crude oil. The isolated strain was rod-shaped gram negative bacterium and was identified as Pseudomonas sp. E4 through the 16S rDNA sequencing. The biodegradability t.. Read More
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A greenhouse experiment was conducted to investigate the growth of Calopogonium mucunoides in soils contaminated by various concentrations of crude oil with a view of assessing its phytoremediating potential when different organic-based fertilizers were applied. The crude oil prepared at different concentrations of 0.0, 2.5, 5.0.. Read More
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The natural or manmade water bodies in and near the settlements play very important role in improvement and conservation of local environment but many of them are on the way of eutrophication. This problem needs an urgent and sincere attention of environmentalists. The pollution due to heavy metal ions, pesticides and fertilizer.. Read More
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The aromatic hydrocarbon sodium benzoate induced significant alterations in cell morphology with parallel changes in physiological processes like denitrification and pigment formation during growth of a bacterial strain TMR2.13 in denitrification medium. The isolate obtained from a low nutrient level ecosystem (coastal sand dune.. Read More
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