نتایج جستجو برای: bioremediation process

تعداد نتایج: 1316529  

Journal: :Applied and environmental microbiology 2009
Etienne Yergeau Mélanie Arbour Roland Brousseau David Juck John R Lawrence Luke Masson Lyle G Whyte Charles W Greer

High-Arctic soils have low nutrient availability, low moisture content, and very low temperatures and, as such, they pose a particular problem in terms of hydrocarbon bioremediation. An in-depth knowledge of the microbiology involved in this process is likely to be crucial to understand and optimize the factors most influencing bioremediation. Here, we compared two distinct large-scale field bi...

2013
Yasser El-Nahhal Yousef Awad Jamal Safi

This study investigated the bioremediation of organic pollution in soil and water systems by cyanobacterial mats collected from Wadi Gaza. Acetochlor, a model compound of herbicide, was used as a standard organic pollutant. Various concentrations of acetochlor were injected in soil and water samples pre-treated with cyanobacterial mat for several periods of time. Percentage of growth of wheat a...

1995
X. Yang L. T. Fan

In-situ bioremediation is a process by which contaminants in subsurface environments are biologically eliminated or mineralized; however, it is often difficult to implement. Microbes sparsely distributed in deep soils are incapable of degrading a chemical rapidly; furthermore, fine-pore structures of soils tend to retard the penetration and propagation of these microbes and to hinder oxygen tra...

2015
Salmah B. Karman S. Zaleha M. Diah Ille C. Gebeshuber

Heavy metal wastewater poses a threat to human life and causes significant environmental problems. Bioremediation provides a sustainable waste management technique that uses organisms to remove heavy metals from contaminated water through a variety of different processes. Biosorption involves the use of biomass, such as plant extracts and microorganisms (bacteria, fungi, algae, yeast), and repr...

Journal: :international journal of environmental research 0
v.m. castro-gutiérrez laboratory of food and water microbiology, faculty of microbiology and research center of environmental pollution (cica), university of costa rica (ucr), 2060 san josé, costa rica c.e. rodríguez-rodríguez laboratory of food and water microbiology, faculty of microbiology and research center of environmental pollution (cica), university of costa rica (ucr), 2060 san josé, costa rica i. vargas-azofeifa centroamerican school of geology, ucr, 2060 san josé, costa rica

an aquifer located within a petroleum processing plant in moín, costa rica, suffers hydrocarbon pollution. this study aimed to determine the ability of indigenous microorganisms from this site to degrade polycyclic aromatic hydrocarbons (pahs) to evaluate the feasibility of an eventual bioremediation process. aerobic conditions were found in the aquifer, while microbial analyses of the groundwa...

Hamidi Abdul Aziz Leila Mohajeri, Mohamed Hasnain Isa Mohammad Ali Zahed

 The effectiveness of hydrocarbon bioremediation strategies approaches is depending on various issues such as type and volume of pollution, nutrient accessibility in the target ecosystem, time, biodiversity of microorganisms, pollutant bioavailability and many others. In the present research, laboratory studies were carried out on the bioremediation of coastal sediment samples ...

2015
Masoumeh Ravanipour Roshanak Rezaei Kalantary Anoushiravan Mohseni-Bandpi Ali Esrafili Mahdi Farzadkia Samireh Hashemi-Najafabadi

BACKGROUND The effectiveness of bioremediation systems for PAH-contaminated soil may be constrained by physicochemical properties of contaminants and environmental factors. Information on what is the most effective factor in bioremediation process is essential in the decision of what stimulations can be taken to assist the biodegradation efficacy. METHODS In this study, four factors of surfac...

2017
M. H. Fulekar

BACKGROUND Petrochemical industry is one of the fastest growing industries. This industry has immense importance in the growth of economy and manufacture of large varieties of chemicals. The petrochemical industry is a hazardous group of industry generating hazardous waste containing organic and inorganic compounds. In spite of the present treatment process, the hazardous waste compounds are fo...

Journal: :Journal of Natural Sciences Research 2023

The contamination of soil due to activities involved in crude oil exploration and production, spillage emanating from pipeline vandalization, sabotage, theft, corrosion the enterprises artisanal refineries pose health ecological problems. This is especially as contains chemical compounds which are grouped into Total Petroleum Hydrocarbons (TPH), known be toxic, mutagenic, carcinogenic. Bioremed...

2014
Ravindra Singh Pushpendra Singh Rajesh Sharma

The term bioremediation has been introduced to describe the process of using biological agents to remove toxic waste from environment. Bioremediation is the most effective management tool to manage the polluted environment and recover contaminated soil. The hazardous wastes generated from the chemical processes/operations are being treated using physico-chemical and biological methods by the re...

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