134
5 Engineering Application Cases
Fig. 5.8 Design of pipelines
Fig. 5.9 Biogas transmitted into households
The technology used in the breeding plant for constructing ecological pig farm
with resourceful utilization of pollutants from breeding belongs to cleaning production technology. Before constructing biogas project, sewages and livestock manure
discharged from the breeding plant resulted in great pollutions to environment and
seriously polluted soils, air and water body around the breeding plant. In particular,
groundwater pollution seriously affected people’s health. After constructing biogas
station, these pollutants are transformed into energy through anaerobic fermentation.
In the fermentation, germs are killed and pollution reduces. The remaining biogas
residues and slurry are applied as fertilizers to the farmlands, which can minimize the
5 Engineering Application Cases
Fig. 5.8 Design of pipelines
Fig. 5.9 Biogas transmitted into households
The technology used in the breeding plant for constructing ecological pig farm
with resourceful utilization of pollutants from breeding belongs to cleaning production technology. Before constructing biogas project, sewages and livestock manure
discharged from the breeding plant resulted in great pollutions to environment and
seriously polluted soils, air and water body around the breeding plant. In particular,
groundwater pollution seriously affected people’s health. After constructing biogas
station, these pollutants are transformed into energy through anaerobic fermentation.
In the fermentation, germs are killed and pollution reduces. The remaining biogas
residues and slurry are applied as fertilizers to the farmlands, which can minimize the