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The degradation of atrazine (ATZ) by ultraviolet/peroxymonosulfate (UV/PMS) under different conditions was investigated in phosphate buffer, and the degradation mechanism and kinetics were discussed. The results showed that the degradation rate of 2.5 μmol/L ATZ in UV/PMS system was 97.63% in 20 min when the reaction temperature was 20ºC, the concentration of PMS was 20 μmol/L and the UV intensity...
Multivariate statistical techniques, hierarchical cluster analysis (HCA), and principal component analysis (PCA) integrating graphical method (Piper trilinear graphical diagram) were applied to the factor identification of ground water quality in a coastal aquifer, Fujian province, South China. Ground water samples were collected at 12 sites in January (dry season) and July 2011 (wet season). Eleven...
We mixed biogas slurry with 6 commercial fungicides and screened them against 11 phytopathogens. Results showed that the inhibition effect of biogas slurry was different for different pathogens, and no significant difference between treatments of Didymella bryoniae, Fusarium oxysporum f. sp. vasinfectum, Aspergillus niger, Rhizoctonia cerealis, F. graminearum, and Septoria tritici was observed. However,...
Spatial variability is a major source of uncertainty in estimating the fluxes of greenhouse gases between steppe and atmosphere. The fluxes of CO₂, CH₄, and N₂O were carried out between 08:00 and 10:00 h. of the following day during the midsummer period from a transect (area: 5.25×10⁶ ha) in the semiarid steppe of northern China, using the dark static chamber technique and gas chromatography. Two...
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