It is feasible to process the low-concentration organic wastewater by means of hydrolysis acidification-biological contact oxidation-precipitation-activated carbon absorption. The total removal rates of COD,BOD5,NH3-N and the volatile phenol are 95.6%,94.6%, 93.7%,and 99% respectively.
Methods:HUVECs were cultured in vitro and allocated into 5 groups: normal control group, LPC group, low-concentration fenofibrate (10 μmol/L)group, moderate-concentration fenofibrate (50 μmol/L)group and high-concentration fenofibrate (100 μmol/L)group.
Samples were added with 5% serum medium containing 0 mmol/L, 0.1 mmol/L, 0.2 mmol/L and 0.4 mmol/L UA in control group, low-concentration UA group, moderate-concentration UA group and high-concentration UA group, respectively, and incubated in box with the volume fraction of 0.05 CO2 at 37 ℃.
aureus in lower concentration of chloroform extract.
Pigments isolated from macromycetes and applied at a much lower concentration than those obtained from micromycetes prevented damage to bacteriophage-λ DNA induced by products of peroxidase-mediated degradation of aminobiphenyls.
The results are compared with the data obtained earlier for another glass that has a similar composition but contains a lower concentration of alkali metal oxides.
DeleCut allows one to reduce annealing temperature and offers a lower concentration of radiation defects, a thinner transferred silicon layer, and a thinner transition layer between the silicon and the insulator (oxide).
Rubisco activity was found to decrease at elevated CO2 concentrations due to a lower concentration of catalytically active enzyme centers.
Furthermore, at low concentrations (up to 5 mM), Me2SnCl2 binds to the phosphate groups of DNA in an exothermic step and had no significant effect on double-strand DNA stability, confirmed by the fact that the Tm value did not change.
The results show that low concentrations of NO were self-produced by marine algae during the exponential growth period and were about nmol/L level.
If we can find crop germplasms that take in low concentrations of heavy metals in their edible parts and high content of the metals in their inedible parts, then we can use these selected species or varieties for soil remediation.
Sulfur dioxide (SO2) is a ubiquitous air pollutant, presents in low concentrations in urban air and in higher concentrations in working environment.
The experimental results indicated that the ethanol-acetone resolving method was simple and could separate the PAC solution at different concentrations, while column chromatography could separate PAC solutions at low concentrations.