7Demirer G N,Speece R E.Comparison of anaerobic acrylic acid biotransformation in single-and two-stage pHstat CSTR systems[ J ].Water Env Res,2000,72:84 -91.
8Schellinkhout A,Collazos C J.Full-scale application of the UASB technology for sewage treatment[ J ].Wat Sci and Technol,1992,25 (7):159-166.
9Gonzalez-Gil G, Kleerebezem R, van Aelst A, et al. Toxicity effects of formaldehyde on methanol degrading sludge and its an aerobic convertion in biobed (R) expanded granular sludge bed (EGSB) reactors. Wat Sci Technol, 1999,40 ( 8 ) : 195 - 202.
10Qu M, Bhattacharya S K. Toxicity and biodegradation of form aldehyde in anaerobic methanogenic culture. Biotechnol Bioeng, 1997,55:727-736.
