The invention discloses a
marsh gas power generation method which comprises the following steps of:
wetting the smashed
straw and water at a
mass ratio of 1:2, adding an inoculum, and carrying out stack
retting in a stirring way for 3-7 days; adding fresh
chicken manure into a
fermentation tank, and adding water to prepare a mixture of which the
moisture content is 91%-95% to carry out anaerobic
fermentation, wherein the temperature is 35-50DEG C, the pH value is 6.8-7.2, and the
fermentation time is from 12 hours to 5 days; and educing the generated
marsh gas, desulfuring by a biological desulphurization method, storing the
marsh gas by a wet type
marsh gas storing cabinet, generating the
electricity by adopting a pure
marsh gas internal combustion engine generator set with a function of combined heat and power generation, discharging mixed liquid materials, and classifying by means of
solid-liquid separation. After the
marsh gas power generation method is adopted, the continuous generation of the marsh gas required for power generation can be guaranteed, the long-term use of the gas generation of the fermentation tank can be guaranteed, the function generated by the marsh gas can not be obviously attenuated, the acidification phenomenon is hard to happen in the process of fermentation, and the burning of the
straw can be further avoided since various
straw materials of agricultural products are sufficiently used.