In situ groundwater bioremediation of hydrocarbons has been used for more than 40 years. Most strategies involve biostimulation; however, recently bioaugmentation have been used for dehalorespiration. Aquifer and contaminant profiles are critical to determining the feasibility and strategy for in situ groundwater bioremediation. Hydraulic conductivity and redox conditions, including concentrati...

The removal of chlorpyrifos (CLP) from the environment is a matter general interest, because it one most widely used insecticides in world but presents high toxicity and persistence environment. Biological strategies are considered as good option to remediate different environmental compartments. Assisted natural attenuation was find ability kinds soils mineralise CLP. In this way, two showed c...

Sources of contamination in a subsurface environment are petrol, diesel fuel, gasoline at oil refineries, underground storage tanks, transmission pipelines, and different industries. The permeable reactive barrier (PRB) is promising technology to remediate groundwater in-situ. In this study, synthetic samples containing toluene treated three reactor columns by biological processes. PRB-1 consis...

Abstract The benefit of bioaugmentation activated sludge (AS) with yeasts was tested using AS and wastewaters (WW) that originated from the chemical industry, as well synthetic WW. A stimulating effect Saccharomyces cerevisiae on microbial respiration intensity in shown. added yeast biomass maintained viability AS, an inhibitory BAC Bacilli found; however, addition to reduced this effect.

Abstract The work was focused on the effect of bioaugmentation process STWW contaminated by pentachlorophenol (PCP: 100 mg L−1) Pseudomonas putida AE015451. monitoring treatments assessed chloride content determination via high-performance liquid chromatography (HPLC), optical density (OD) for microbial biomass determination, and pyoverdine biofilm production. a PGPR strain showed high-efficien...

The plant-microbial interactions in the assisted bioremediation of a petroleum hydrocarbon-polluted soil after bioaugmentation with Pleurotus tuberregium were investigated. Top soils collected from fallow plot on campus University Benin, Nigeria. A list all weeds growing was taken, bid to determine seeds bank (Table 2). then polluted different concentrations waste engine oil (1.0, 2.5, 5.0 and ...

A hydrogeologic characterization was performed to evaluate the nature of groundwater flow in an alluvial and underlying fractured bedrock aquifer in the area between an unlined, inactive landfill and a river in southern California. The hydrogeologic characterization was used to enhance the site conceptual model for the site, and to design a bioaugmentation pilot test to evaluate the use of enha...