ferriphilum was the most dominant species in microfloras enriched in media with pyrite and ferrous iron supplemented with sulfur as energy sources,the abundance were 53.8% and 45.9% respectively.
The results showed that, root pore/fissure coating was formed through the enrichment of oxidized ferrous iron (Fe2+) on the surface of root pore or fissure, and the oxidation took place on the surface of Al-ilicate clay mineral.
After the treatment of water sample, hydrochloride hydroxylamine is used to reduce 3-valence Fe ion into ferrous iron ion. In the measurement by ortho phenanthroline potometry color indication,the relative deviations are 1.13%,0.83%,1.17%,1.26% and 4.43% respectively.
In 4.0% ammonium citrate(pH9.1)medium,a sensitive adsorptive wave of the complex of ferrous iron with 4(2pyridylazo)resorcinol(PAR)is obtained by using singlesweep oscillopolargraphy.
The method to remove ferrous iron ion in pre-flux solution of hot dip galvanizing is to oxidize ferrous iron ion into three valence iron ion at first,then remove it out when changed into zero charge.
Experimental results showed that,initial pH1.6,inoculation amount 10% and ferrous iron concentration 50~100m mol/L is suitable for bacterial growth and ferrous iron oxidation in mixotrophic condition.
实验结果表明 ,在混合营养条件下 ,初始 p H1 .6、接种量 1 0 %、初始 Fe2 +浓度 50~ 1 0 0 m mol/ L适宜细菌的生长及亚铁的氧化。
In the present study, the ferrous iron in paddy soils was classified and determined separately into four forms, namely, water-soluble, exchangeable, complexed and precipitated.
In pyrite-adapted strain TFBk, the plasmid composition was the same as after growth on a medium containing ferrous iron, whereas, in strain TFV-1, changes in plasmid sizes or both in plasmid sizes and plasmid number occurred.
Ferrous iron cations Fe(II) can effectively bind to the donor side of the manganese-depleted photosystem II (PSII(-Mn)) and in this way block electron transfer from diphenylcarbazide (DPC) to the major donor for P680, YZ.