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With the continuous development of campus online loans, many problems have emerged while bringing convenience to college students. Some campus online lending institutions have false propaganda and unfair competition, charging high and unreasonable fees when students take out loans, tempting students to “use loans to support loans”, buying and selling students’ personal privacy information, and using violent collection methods when students cannot repay the loans in time. In the face of these problems, the government should improve the supervision system of campus online lenders, establish a database to provide personal credit assessment, and schools should enhance the management of campus online lending, regularly carry out mapping work, and enhance the legal awareness of college students, while promoting the participation of governmental supervision departments, schools, and society, so that campus online lending can develop in a benign way and provide more convenience forcollege students.

With the rapid development of China's social economy and the rise of agricultural industrialization, the problem of agricultural non-point source pollution is becoming increasingly prominent. Reducing nitrogen and phosphorus nutrients in agricultural runoff is the key to control agricultural non-point source pollution, and it is also a hot research topic at home and abroad. The traditional methods to remove nitrogen and phosphorus nutrients in agricultural runoff mainly include ecological ditch, ecological buffer zone, and constructed wetland, etc. At present, ecological ditch, ecological buffer zone and constructed wetland are widely used in the treatment of agricultural runoff, while Microbial Fuel Cell (MFC) technology and biofilm-electrode reactor (BER) have gained wide attention in recent years, it is the key technology of agricultural runoff treatment and has been widely recognized in the world. The purpose of this text is to explore the mechanism and technology of nutrient removal from farmland wastewater by in-situ biological treatment.

The development focus of real estate enterprises has shifted from traditional buildings to industrial park construction. After summarizing and analyzing the risk factors of the traditional construction cost, the WBS-CBS-RBS method is used to classify and identify the whole process cost of the industrial park. Finally, eight first level evaluation indexes and 37 second level evaluation indexes are established to form the whole process cost risk evaluation index system of the industrial park construction, which provides the basis for the whole process cost risk assessment of the subsequent industrial park construction.