the removal ratio of lignin can be greatly unproved after adding 10mg/l manganese ion, 0.lmg/1 copper ion, 0.25mg/l ferrous ion and 10mg/1 calcium ion into the culture media;

• 向原降解培养基中加入10mg/L的Mn~(2+)离子，0.；1mg/L的Cu~(2+)离子，0