[Effect of microorganism for polycyclic aromatic hydrocarbons (PAHs) sorption on surface sediments and soils].
Influence of microorganism for polycyclic aromatic hydrocarbons (PAHs) sorption on surface sediments and soils in Yellow River Delta was studied. The results indicated that phenanthrene and benzo[a]pyrene could be adsorbed or biodegraded by Bacillus subtilis, and 98% phenanthrene and 85% benzo[a]pyrene was eliminated by microorganism in adsorption process. Sorption isotherms of soils and sediments with and without microorganism were described by linear isotherm equation. Adsorption capacity of samples with microorganism increased about 35 times than that of without microorganism, but benzo[a] pyrene adsorption capacity decreased about 2/3. In desorption process, samples with microorganism desorbed less phenanthrene than without microorganism, but more benzo[a]pyrene. Microorganism plays an important role in adsorption process.
Luo
Xue-Mei
XM
State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China. luo_xuemei@sohu.com
He
Meng-Chang
MC
Liu
Chang-Ming
CM
D000327:Adsorption; D001564:Benzo(a)pyrene / Q000737:chemistry / Q000378:metabolism; D001673:Biodegradation, Environmental; D019015:Geologic Sediments / Q000737:chemistry / Q000382:microbiology*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000737:chemistry / Q000378:metabolism*
D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants; D001564:Benzo(a)pyrene