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The fungal mycelial pellets of Aspergillus fumigatus was used for the removal of humic acid from aqueous solution. The impact of culture age, mycelial pellets preservation time, and different nutrition-cultured mycelial pellets on the biosorption of humic acid was studied. The results showed that humic acid could be adsorbed by Aspergillus fumigatus mycelial pellets. Sucrose could be a good cultivate...
Through incubation of one kind of paddy soil with different concentration of phenanthrene, the paper discusses the change of contents and its effect on enzyme activity in the paddy soil. The result indicated that contents of phenanthrene added to soil decreased gradually with incubation day. After incubation for 56d, the content of phenanthrene with high concentration (1.6 and 3.2μg/g ) declined more,...
A microbial community with lignocellulose and lindane degradation ability was constructed and domesticated from overheated composting pile. Denaturing gradient gel electrophoresis (DGGE) showed that the DGGE band patterns of the community were different in different cultivation period. The community could degrade different cellulose materials with high efficiency, especially had high degrading activity...
To enhance anaerobic fermentation biogas production, excess sludge from Hanxi waste water plant of Wuhan City was first pretreated by peracetic acid (PAA), then anaerobic digested for 20 days in 35degC. An anaerobic digestion process without pretreatment was conducted as reference for comparison purpose. The results showed that organic matter dissolved from sludge after PAA pretreatment, soluble chemical...
For application researches of the detection for the gas signal source, a method for orientation estimation of the gas signal source in the two-dimensional space and its algorithm are presented in the paper. In the method, a mode of dual-line gas sensor array is applied to sample the signals of the gas concentration in real time, and the time delay estimation, an approach of the signal processing,...
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