鹤岗风化煤的微生物降解研究

利用青霉菌等４种微生物降解鹤岗风化煤及稀盐酸处理样，得到了降解效果。酸处理风化煤的降解远好于示处理的风化煤。对产物的分析结果表明，微生物的降解作用使煤样发生了变化；降解过程中伴随着Ｏ，Ｈ，Ｎ含量的增加，酸性官能团含量及ＦＴ－ＩＲ谱上吸收带的变化。

Biodegradation of Hegang weathered coal by microorganisms

Four strains of microorgamism are used to biodegrade the said coal and its samples treated by 5% HC1. Higher conversions and rate of biodegradation of treated samples are observed than those of untreated Hegang (HG) coal samples. The analysis of Biodegraded Products(BP) from the treated coal samples shows increase of N/C, O/C and H/C for all BP when using either penicillium waksmanni, penicillium decumbens, pseudomonas aeruginosa or pharnerocheate chrysosporium as the bioconversion microorganisms. Changes of structure are obvious in FT IR spectra when comparing the original samples with BPs. The biodegrading ability of the two penicillium strains comes from the extracellular enzymes and alkaline material appears in the culture. Coal samples exert an inhibition effect on the bioconversion of coal sample if too much of it is added to the culture in shaking flask. A proper amount of coal samples should be added to the suspension of cultured fungi. The concentration and yield of BP reach a maximum during 32 days bioconversion. Biodegradation of coal by penicillium waksmanni can reduce the alcoholic hydroxy group in BP compared with original coal samples. Products from ATHG (acid treated HG) by PW have been analyzed by 13 C NMR.