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... concentration and macronutrients were monitored. Heavy metals, PAHs and BETX were measured at the beginning and at the end of the remediation process. After a period of two years, landfarming has been successful and has reduce superficial soil TPH concentration from in excess of 140000 mg/kg to values...

... be deactivated. Phosphorus is in its composition, which is one of the macronutrients of bacteria. If for any reason the bactericide deactivated or its concentration decreases below the lethal dose, it is possible that it promotes microbiological contamination. [ 3 , 4 ]. - THPS : possesses phosphorus in its...

... of nutrients to the soil is therefore reduced resulting in an impoverished soil. Organic matter in soils is considered to be a store of N, P and S, which are plant macronutrients. 31 In terrestrial ecosystems, most soil organisms that are important in soil nutrient replenishment and aeration are dependent...

.... Phosphorus and potassium are other macronutrients, which provide a positive response and significantly enhance biodegradation when added to the hydrocarbon impacted or treated soil. A nitrogen:phosphorous:potassium (N:P:K) ratio of 4:1:1 provides a good balance and highly satisfactory remediation results...

.... Concentrations of carbon, nitrogen and phosphorus species confirm the shale system is not oligotrophic or limited for key macronutrients. The increasing concentrations of redox-active elements and reduced electron acceptors strongly suggests an active anaerobic microbial community exists in the well involved...

... that, the presence of the pollutant leads to a significant reduction in macronutrients like nitrogen and phosphorus ( Agbogidi, Eruotor, Akparobi Nnaji, 2007 ; Wibbe and Blanke, 1999 ). The pH of the crude oil polluted soil was acidic and is consistent with previous findings on the influence of hydrocarbon...

... removal is biotrickling filters (BTFs). In contrast to BFs, inorganic inert packing media is used in BTFs which does not consist of any inherent microorganisms or nutrients. Thus, a nutrient solution contains the necessary micro and macronutrients should continuously trickle through the system...

... throughout the process. Phosphorous P - The orthophosphates, H 2 PO 4 − and HPO 4 , are the primary forms of phosphorus taken up by plants. Plant roots absorb phosphorus from the soil solution. In comparison to other macronutrients, the phosphorus concentration in the soil solution is much lower...

... The experimental units were conformed by mixtures of soil and amendments. A high biological activity was evidenced caused by the composting process. There was macronutrients consumption, temperature changes along the process and improvement of physical characteristics of the mixtures like aspect (the soil turned...

... consist basically of seven types, namely water, energy source, carbon source, electron acceptor, essential minerals, nitrogen source, and growth factor. Some factors must be taken into account very carefully in case of MEOR; these are salinity, temperature, pH, macronutrient (such as sulfur, magnesium...

...: Layout of the electrode specimens in the anode and cathode cell Test Medium The compositions of the artificial growth medium (AGM) was determined from the chemical analysis results of the field condensate samples. It contained macronutrients, trace elements stock and vitamins stock.19 Both cells were...

... for roots allowing for penetration, 2) supply of water, 3) supply of air and particularly oxygen, 4) supply of nutrients and 5) buffering against adverse changes in pH and temperature. Most species need the following macronutrients from the soil; nitrogen, phosphorus, potassium, calcium, magnesium...

... on the component surface, under rust layers, or even under mill scale where this is not removed), the required micro-nutrients (Fe ions produced by the electrochemical corrosion process), an adequate supply of macronutrients, as well as electron acceptors such as sulfate or nitrate (seawater is rich in sulfates...

... matter, buffer for macronutrient and micronutrient imbalances, and hopefully activate the development of soil microbes, thereby improving the physical and water-retentive properties of the disturbed soils. The approach used on this project was to re-establish microbial communities by providing "food...

... of oxygen-releasing compounds (i.e., MgOz), and possibly macronutrients (i.e., nitrogen and phosphorous). Natural attenuation was favorably receive and approved as an appropriate remedial alternative for these two sites. Periodic gauging and monitoring of key parameters will continue for a minimum period...

... in Pradhan et al. (2009); Cavalett and Ortega (2010); Tsoutsos et al. (2010) and Carraretto et al. (2004) is due to fossil fuels consumption. 4.1.6 Eutrophication Potential (ETP) Eutrophication covers all potential impacts of excessively high environmental levels of macronutrients, the most important...