biological concentration
1.It was found that C. pyrenoidosa was able to accumulate and biodegrade DEP. Accumulated amount of DEP and biological concentration factors(BCF) reached maximum values(9.83mg/g,205) at 12 h.
2.CONCLUSIONS The results show that,only under the following circumstances,namely the concentration of glutaraldehyde being no less than 20 000mg/L and the action time being no less than 10 min,timely alteration of glutaraldehyde,and regular biological and concentration monitoring could the disinfection of endoscope be qualified so that hospital infection can be prevented,and medical dispute may be put to an end.
3.Cell culture in vitro,ABC ELISA,RNA dot blot and atom absorption spectrum analysis were used to study biological effects of low concentration of iron citrate (Fe cit) on the expression of transferrin receptor (TfR) in healthy human peripheral lymphocytes.
4.The biological effect on Chinese cabbage and critical concentration of Ni application in chestnut soil
5.Biological effects on Chinese cabbage and critical concentration of Ni application in the calcareous soil
6.This may well be an explanation about the relation between the biological effect of Se and its concentration described by the Weinberg principle.
7.Abstract: By a large number of trial and related project experiences,the author can draw a conclusion that organic wastewater can gain better processing efficiency before it flows into the biological fluidized beds with lower sludge concentration by coal fly ash pretreatment and high efficiency jet aerator.
8.After aerobic biological treatment of pharmaceutical wastewater with high concentration nitrogen, effluent COD and BOD 5 could meet the discharge standards specific for pharmaceutic industry, but effluent TN was still as high as 170mg/L.
9.The results showthat biological aerated filter could remove NH3-N perfectly when NH3-N concentration of influent is below 30 mg/L.
10.High performance compact reactor (HCR) and biological contact oxidation (BCO) were introduced to treat the medium high concentration monosodium glutamate production wastewater. The effluent of this facility is stable and quite good to meet the requirement of national wastewater discharge standards.

