1.2 Necessity of Differentiated Resourceful Utilization of Organic …
5
lot of work on resourceful utilization of rural organic wastes, mainly including
fertilization, forage and fuelization of organic wastes. However, due to the lack
of new technologies and modes, these problems, such as low utilization value
of resourceful products and low quality of products, like fertilizer and feed
are widespread. Particularly, with the increasing shortage of natural resources
and dramatic increase of wastes, more and more attention has been paid on
organic wastes in villages and towns. In nowadays with market economy and
industrialized operation, it is urgent to develop diversified technologies and
equipment for differentiated resourceful disposal of organic wastes.
(3) Research on key technologies and practical equipment for differentiated
resourceful utilization of organic wastes in villages and towns is a strong
guarantee to improve the resourceful efficiency of organic wastes.
In China, there are obvious spatial differences in the geographical characteristics of villages and towns and imbalanced social and economic development.
Moreover, different regions have greatly different industrial structure, ecological carrying capacity and environmental pressure. For these reasons, the output
and compositions of organic wastes in villages and towns in different regions are
quite different and the unified resourceful technical mode is obviously not suitable for the disposal of organic wastes in villages and towns showing regional
differences. In addition, the existing utilization technologies for organic wastes
in villages and towns are immature and have poor stability and high cost for
resourceful utilization, which results in different effects of resourceful utilization of organic wastes in villages and towns in improving economic efficiency
and reducing farmers’ labor intensity. The major technologies for resourceful utilization of organic wastes in villages and towns mainly concentrate in
large and medium-sized livestock and poultry breeding enterprises, while the
researches on small-scale, resourceful and applicable technologies and equipment that suit for the majority of villages and towns are rare. Therefore, it is
urgent to carry out research and development on resourceful disposal mode and
complete technologies and equipment for organic wastes of villages and towns
in different regions.
(4) Research on key technologies and practical equipment for differentiated
resourceful utilization of organic wastes in villages and towns is important
content of building resource-conserving society in villages and towns.
The construction of conservation-minded society needs the joint efforts from
all fields of society, and resourceful utilization of organic wastes in villages and
towns is important content for building conservation society. Organic wastes
in villages and towns, such as livestock manures, contain a large amount of
plant nutrients (like organic matter, nitrogen and phosphorus). By using these
organic wastes, high-quality organic fertilizer and commercial organic compound fertilizer can be produced by utilizing the preparation technology of
organic fertilizer and organic-inorganic compound fertilizer. Treating organic
wastes by using biogas fermentation technique can produce biogases and biogas
manure. The recycling of matter and energy can also solve contradiction of fuel,
fertilizer and feed and increase farmers’ income.
5
lot of work on resourceful utilization of rural organic wastes, mainly including
fertilization, forage and fuelization of organic wastes. However, due to the lack
of new technologies and modes, these problems, such as low utilization value
of resourceful products and low quality of products, like fertilizer and feed
are widespread. Particularly, with the increasing shortage of natural resources
and dramatic increase of wastes, more and more attention has been paid on
organic wastes in villages and towns. In nowadays with market economy and
industrialized operation, it is urgent to develop diversified technologies and
equipment for differentiated resourceful disposal of organic wastes.
(3) Research on key technologies and practical equipment for differentiated
resourceful utilization of organic wastes in villages and towns is a strong
guarantee to improve the resourceful efficiency of organic wastes.
In China, there are obvious spatial differences in the geographical characteristics of villages and towns and imbalanced social and economic development.
Moreover, different regions have greatly different industrial structure, ecological carrying capacity and environmental pressure. For these reasons, the output
and compositions of organic wastes in villages and towns in different regions are
quite different and the unified resourceful technical mode is obviously not suitable for the disposal of organic wastes in villages and towns showing regional
differences. In addition, the existing utilization technologies for organic wastes
in villages and towns are immature and have poor stability and high cost for
resourceful utilization, which results in different effects of resourceful utilization of organic wastes in villages and towns in improving economic efficiency
and reducing farmers’ labor intensity. The major technologies for resourceful utilization of organic wastes in villages and towns mainly concentrate in
large and medium-sized livestock and poultry breeding enterprises, while the
researches on small-scale, resourceful and applicable technologies and equipment that suit for the majority of villages and towns are rare. Therefore, it is
urgent to carry out research and development on resourceful disposal mode and
complete technologies and equipment for organic wastes of villages and towns
in different regions.
(4) Research on key technologies and practical equipment for differentiated
resourceful utilization of organic wastes in villages and towns is important
content of building resource-conserving society in villages and towns.
The construction of conservation-minded society needs the joint efforts from
all fields of society, and resourceful utilization of organic wastes in villages and
towns is important content for building conservation society. Organic wastes
in villages and towns, such as livestock manures, contain a large amount of
plant nutrients (like organic matter, nitrogen and phosphorus). By using these
organic wastes, high-quality organic fertilizer and commercial organic compound fertilizer can be produced by utilizing the preparation technology of
organic fertilizer and organic-inorganic compound fertilizer. Treating organic
wastes by using biogas fermentation technique can produce biogases and biogas
manure. The recycling of matter and energy can also solve contradiction of fuel,
fertilizer and feed and increase farmers’ income.