The invention relates to compound
bacteria for biological
bacteria liquid pulping and application of the compound
bacteria. The invention also provides a biological bacteria liquid pulping method. The compound bacteria comprise bacillus stored with a number of CGMCC No. 5971,
acinetobacter lwoffii stored with a number of CGMCC No. 5973, and
Wickerhamomyces anomalus stored with a number of CGMCC No. 5975. The method mainly comprises the following steps of: preparing bacteria liquid;
processing raw materials; and pulping, wherein pulping steps comprise the following steps of: defibering, biologically degrading, sterilizing through steam, carrying out rough pulping, carrying out fine pulping, screening a
sizing agent, removing latency, and washing the
sizing agent. A
paperboard prepared by the biological bacteria liquid pulping method provided by the invention reaches a level over AA grade; waste liquid produced in a pulping process can be recycled or transformed into
methane which can be served as an energy resource or
organic fertilizer, and therefore, energy sources are saved, and environment protection is achieved.