Biomedical Engineering Reference
In-Depth Information
and Poultry Raising Industry'' (GBl8596-2001) in 2001. In 2005, MAC issued
''Biogas Construction Plan of the Whole Country for 2006-2010'', in which the
construction of 5,000 biogas projects in key areas was planned. In addition,
''Well-off Environmental Protection Action Plan'' was announced by MEPC in
2006, which planned to complete 500 demonstration projects of mass livestock
and poultry treatment to improve the contamination control. The implementation
of all these plans has been partially completed and some are still under way.
Laws and regulations play an important role in the development of biogas
engineering. After the issuing of ''Renewable Resources Law of the People's
Republic of China'' in 2005, a series of relevant regulations have been released,
such as ''Tentative Management Measures for Allocation of Prices and Expenses
for Generating Electricity by Renewable Energy'', ''Renewable Energy Relevant
Management Regulations'' and ''Renewable Energy Development Interim Mea-
sures for the Administration of the Special Fund''. In addition, ''Agricultural
Ecological Environment Management Regulations'' has been implemented in 20
provinces/cities in China.
4.2 Matching Facilities
China has formed certain production capabilities in manufacturing matching
facilities for biogas projects. Currently, a series of residential facilities have
already been successfully manufactured and marketed, which have seen wide-
spread application in practical biogas projects. The major matching facilities
include: (1) Dregs and liquid separator: vertical centrifugal machine, horizontal
decanter centrifuge, frame vertical pressure filter. (2) Biogas silo: wet and dry
biogas silo. (3) Biogas desulfurization devices: desulfurization using dry desul-
furizers, desulfurization using liquid sodium carbonate, desulfurization by air
introduction. Desulfurizers have different sizes and styles. (4) Sludge dewatering:
belt-type, frame-type and horizontal screw-style dewatering machines. (5) Biogas
electricity generators: oil and gas mixing combustion generators of different types.
The manufacturing technology of pure biogas electricity generators is still under
investigation.
4.3 Future Trends in Biogas Engineering
Currently, research interest in biogas engineering in China has already transferred
from biogas production alone to integrated consideration of the environmental and
ecological factors and comprehensive utilization of biogas. Meanwhile, with the
increasing public awareness and government support, biogas engineering in China
is moving rapidly toward scaling-up and standardization. This development trend
can be seen from the following aspects:
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