With phenanthrene and pyreneas as test pollutants,four control factors(inoculation amount,water soil ratio, air flux and temperature) were selected to study the microbiology degradation control of PAHs in bio slurry r...With phenanthrene and pyreneas as test pollutants,four control factors(inoculation amount,water soil ratio, air flux and temperature) were selected to study the microbiology degradation control of PAHs in bio slurry reactor.Results indicated that at the test concetration the optimum parameters for obtaining the maximum degradation rates for phenanthrene and pyrenene are 5%～10% in incubation amount,2∶1 for water/soil ratio,0 06～0 1m 3·h -1 for air,and 30℃ in temperature,degradation rate was the highest in this condition with the values 98 9% and 84 2% phenanthrene and pyrnene respectively on the 15th day.These parameters provide useful basis for large scale engineering to treat soil PAHs by means of bio slurry reactor.展开更多
Solubilities of 4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 3,5 -dibromo-4-hydroxybenzaldehyde in chloroform were measured at temperatures ranging from 283.15 K to 323.15 K.The measurements of temperature an...Solubilities of 4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 3,5 -dibromo-4-hydroxybenzaldehyde in chloroform were measured at temperatures ranging from 283.15 K to 323.15 K.The measurements of temperature and enthalpy of fusion of pure solutes were used for caculation of solubility by ideal solution model,which was higher than the experimental values.The very low solubility in chloroform was due to self association of solute molecules.A λh formula was used to fit the data and had shown good correlation results.展开更多
Solid liquid equilibrium data for three binary systems: 4 hydroxybenzaldehyde/3 bromo 4 hydroxybenzaldehyde,4 hydroxybenzaldehyde/3,5 dibromo 4 hydroxybenzaldehyde,3 bromo 4 hydroxy benzaldehyde/3,5 dibromo 4 hydroxyb...Solid liquid equilibrium data for three binary systems: 4 hydroxybenzaldehyde/3 bromo 4 hydroxybenzaldehyde,4 hydroxybenzaldehyde/3,5 dibromo 4 hydroxybenzaldehyde,3 bromo 4 hydroxy benzaldehyde/3,5 dibromo 4 hydroxybenzaldehyde were determined by differential scanning calorimetry and corresponding phase diagrams were given λh equation and Wilson equation were used to correlate the data It was shown that the results obtained by two models were both展开更多
文摘With phenanthrene and pyreneas as test pollutants,four control factors(inoculation amount,water soil ratio, air flux and temperature) were selected to study the microbiology degradation control of PAHs in bio slurry reactor.Results indicated that at the test concetration the optimum parameters for obtaining the maximum degradation rates for phenanthrene and pyrenene are 5%～10% in incubation amount,2∶1 for water/soil ratio,0 06～0 1m 3·h -1 for air,and 30℃ in temperature,degradation rate was the highest in this condition with the values 98 9% and 84 2% phenanthrene and pyrnene respectively on the 15th day.These parameters provide useful basis for large scale engineering to treat soil PAHs by means of bio slurry reactor.
文摘Solubilities of 4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 3,5 -dibromo-4-hydroxybenzaldehyde in chloroform were measured at temperatures ranging from 283.15 K to 323.15 K.The measurements of temperature and enthalpy of fusion of pure solutes were used for caculation of solubility by ideal solution model,which was higher than the experimental values.The very low solubility in chloroform was due to self association of solute molecules.A λh formula was used to fit the data and had shown good correlation results.
文摘Solid liquid equilibrium data for three binary systems: 4 hydroxybenzaldehyde/3 bromo 4 hydroxybenzaldehyde,4 hydroxybenzaldehyde/3,5 dibromo 4 hydroxybenzaldehyde,3 bromo 4 hydroxy benzaldehyde/3,5 dibromo 4 hydroxybenzaldehyde were determined by differential scanning calorimetry and corresponding phase diagrams were given λh equation and Wilson equation were used to correlate the data It was shown that the results obtained by two models were both
