Biomedical Engineering Reference
In-Depth Information
10.8.1.5
Microbial Feed Additive Industry
Feed additives have played an important role in the full-price feed formulation.
In addition to the carbohydrates and amino acids, feed still needs trace elements,
vitamins, and other bioactive substances. Appropriate enzymes and microbial
ecological preparations also will improve the effects. Therefore, feed additives are
widely used. The intensification of the feeding industry make efficiency and disease
prevention important indicators of production. But, extensive use of hormones and
antibiotics has become a major social nuisance. Feed additives with the target of
health care and the microecological preparation could replace the hormones and
antibiotics. Research and development of feed additives for an intensive feeding
industry will play an indispensable role in the improvement of the main structure of
ecological agriculture.
10.8.1.6
Eco-industry and Environmental Projects
As mentioned, the specific content and function of ecological engineering has been
discussed based on the internal structure of ecological agriculture. In addition to
agriculture, the industrial organic wastewater, waste materials, and waste generated
from the service industry and municipal wastewater can go into the virtuous
cycle of ecological agriculture through eco-industrial conversion. For example,
the fermentation of industrial wastewater can be processed with lignocellulose to
improve efficiency and reduce handling costs.
10.8.2
Technical System and Research for Comprehensive
Utilization of Natural Lignocellulose
The waste of lignocellulose has received a good deal of attention but has not
yet been utilized by comprehensive, effective, and economical approaches, which
becomes a technical problem recognized worldwide. It has been proved that
traditional chemical methods are not economical and not conform to ecological
engineering principles. Therefore, it is inevitable to rely on the progress of modern
biotechnology. Biotransformation is an inherent part of the natural ecological
cycle. Using or emulating natural ecological processes is not efficient. Obviously,
this is not only a biological issue but also an engineering problem. Because the
technical and economic issues are not considered by theory scientists, they belong
to the biochemical engineering disciplines. Based on several years of research,
Chen and Li achieved in-depth understanding of the comprehensive utilization of
lignocellulose. The comprehensive utilization of lignocellulose does not involve a
single technology or aim at a single product; also, it would not achieve its economic
benefits with only one isolated factory. Only in accordance with the principles of
ecological engineering will the comprehensive utilization be incorporated into the
