نتایج جستجو برای: microbial oxidation of coal
تعداد نتایج: 21186292 فیلتر نتایج به سال:
Silver carp fillets were treated with liposomal encapsulated and unencapsulated pomegranate peel extract at 0.5 and 1% w/w to evaluate the effect of the extracts on the shelf life of the fillets during 15 days of refrigerated storage. Quality changes of the samples were investigated in terms of total volatile basic nitrogen (TVB-N), peroxide value (PV), thiobarbituric acid (TBA) and microbial c...
The oxidation of ferrous iron (Fe2+) in solution using Acidithiobacillus ferrooxidans has industrial applications exclusively in the regeneration of ferric iron (Fe3+) as an oxidizing agent for the removal of hydrogen sulfide from waste gases, desulfurization of coal, leaching of non-ferrous metallic sulfides and treatment of acid mine drainage. The aim of this investigation was to increase the...
Oil in subsurface reservoirs is biodegraded by resident microbial communities. Water-mediated, anaerobic conversion of hydrocarbons to methane and CO2, catalyzed by syntrophic bacteria and methanogenic archaea, is thought to be one of the dominant processes. We compared 160 microbial community compositions in ten hydrocarbon resource environments (HREs) and sequenced twelve metagenomes to chara...
food safety is considered as an important world concern. the detection of pathogen and toxic materials in food has an important role in public health care. in recent years, the applications of microbial biosensor have been developed as a new approach for toxicity control. luminescent microbial biosensor is an appropriate biological tool for protection of natural environment. this type of biosen...
All the headings should be uppercase, bold Arial size 10 font. In order to comprehensively understand the serious disaster of underground mineral self-ignition and source loss in practice, dynamical and thermo-chemical phenomena of coal spontaneous combustion were investigated. A coupled conductive, convective and radiative heat transfer model for inclined outcrop seam in porous coal-bearing st...
Applicability of the manometric method for studying the oxidation of pyritic material in the presence of bacteria has been demonstrated. Resting cells of Ferrobacillus ferrooxidans accelerated the oxidation of coal pyrites and coarsely crystalline marcasite, but were inactive on coarsely crystalline pyrite. Resting cells of Thiobacillus thiooxidans were inactive on all pyrites tested. Oxidation...
A l l coa ls , o t h e r than a n t h r a c i t e s , tend t o be ve ry s e n s i t i v e t o o x i d a t i o n . Even exposure t o a i r a t ambient temperature causes d e t e r i o r a t i o n t o the e x t e n t t h a t p r o p e r t i e s such as s o l u b i l i t y , cak ing, f l u i d i t y , t a r y i e l d , e t c . , a re adverse ly a f f e c t e d . A l though the loss o f h e a t i n...
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