نتایج جستجو برای: soil degradation index

تعداد نتایج: 710021  

Journal: :polyolefins journal 2016
larissa montagna andre luis catto maria madalena forte ruth marlene santana

in this study, pp films were modified with an organic pro-degradant in different concentrations (1, 2 and 3wt.%), exposed in the first step of degradation to natural ageing for 100 days followed by biodegradation insimulated soil in the respirometric test for 100 days. at the end of the combined degradation process the pp sampleswere characterized according to their morphological and physical p...

Journal: :Applied and Environmental Microbiology 1976

2010
P. Défossez G. Richard Y-J. Cui A-M. Tang V. Chaplain

Identifying the vulnerability of soils to compaction damage becomes an increasingly important issue in the planning and execution of farming operations. Soil compaction models are efficient tools for predicting soil compaction due to agricultural field traffic. Most of these models require the knowledge of the stress/strain relationship, as well as the mechanical parameters and their variation ...

Journal: :مهندسی عمران فردوسی 0
محمد شکوهیان محمدجواد مرادی

so far, different methods have been applied to clean up soils contaminated with oil. bioremediation is one of the clean up technologies which uses microorganisms or microbial processes to degrade oil contaminations in soils. this study evaluates the applicability of cow manure as bioremediation alternative for soils spiked with petroleum hydrocarbons. target contaminant of this research was die...

This study investigated biodegradation of dibenzothiophene (DBT) in marsh soil spiked bywhite-rot fungus Phanerochaete chrysosporium. Soil samples were spiked with 100 ppm DBTand incubated at 30°C in a dark chamber for 30 days. Samples were evaluated for pH, Mnperoxidaseactivity, sulfate ion concentration and growth during the tests. Results showedmaximum levels of pH, Mn-peroxidase and sulfate...

The present study has used soil samples from Nigeria, contaminated with Brass crude-oil, to determine its biodegradation through enhanced biostimulation with cow dung and periodic aeration. Over a period of twenty-eight days, the hydrocarbon-utilizing bacteria (HUB) and hydrocarbon-utilizing fungi (HUF) have been counted and identified. Results from biodegradation of the brass crude-oil over th...

Journal: Pollution 2018

The present study has used soil samples from Nigeria, contaminated with Brass crude-oil, to determine its biodegradation through enhanced biostimulation with cow dung and periodic aeration. Over a period of twenty-eight days, the hydrocarbon-utilizing bacteria (HUB) and hydrocarbon-utilizing fungi (HUF) have been counted and identified. Results from biodegradation of the brass crude-oil over th...

علیرضا کوچکی, , غلامحسین حق نیا, , فروزان طباطبایی یزدی, , محسن فروزان گهر, ,

Of all types of xenobiotics, pesticides such as herbicides play a significant role in soil and water pollution due to their widely usage all over the world. This study addresses the ability of organic amendments to enhance atrazine and metamitron degradation in two herbicide contaminated soils with contrasting textures under laboratory conditions. Soil samples were collected from surface soils ...

2017
M. Maryam Mohammadi-Sichani M. Mazaheri Assadi A. Farazmand M. Kianirad A. M. Ahadi H. Hadian Ghahderijani

BACKGROUND One of the most important environmental problems is the decontamination of petroleum hydrocarbons polluted soil, particularly in the oil-rich country. Bioremediation is the most effective way to remove these pollutants in the soil. Spent mushroom compost has great ability to decompose lignin-like pollution. The purpose of this study was the bioremediation of soil contaminated with cr...

ژورنال: علوم آب و خاک 2005
علیرضا کوچکی, , غلامحسین حق نیا, , فروزان طباطبایی یزدی, , محسن فروزان گهر, ,

Of all types of xenobiotics, pesticides such as herbicides play a significant role in soil and water pollution due to their widely usage all over the world. This study addresses the ability of organic amendments to enhance atrazine and metamitron degradation in two herbicide contaminated soils with contrasting textures under laboratory conditions. Soil samples were collected from surface soils ...

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