According to the requirements of the main pollution industries on wastewater treatment and water saving and taking into account the demands on effective biological conversion of organic wastes as well as residual pesticide degradation in soil and food, modern biological technologies shall be adopted in the project to optimize the construction of environmental microbial agent. The project aims to resolve the common problems in low-cost fermentation, obtain the key technologies in scaling up production, and realize mass production and engineering application of safe biological products with our own intellectual property rights. The project would focus on the common problems of microbial agent mixed fermentation and production, such as: screening and culture of highly productive strain and optimization of production process so as to shorten fermentation time and realize effective quality control, fast detection of functional bateria and long-term preservation under normal temperature, and other technical difficulties. In this way, the production cost shall be further reduced, the technical content and market competitive advantadges will be greatly improved, a microbial agent research & development platform will preliminarily come into being, and a series of techologies on mass production of typical products shall form.