With the arrival of the second semester of our senior year, under the arrangement of the school, our environmental engineering majors conducted the last internship in the university - graduation internship. Graduation internship is another important practical link based on environmental monitoring internship and production internship after we have completed all professional courses and professional elective courses. It is also an integral part of the graduation project. Its purpose is to consolidate, verify and strengthen our The knowledge we have learned, cultivate the ability to integrate theory with practice, and comprehensively apply the knowledge we have learned to solve practical problems, laying a good foundation for our upcoming graduation project and future work.
Through graduation internships, we can connect the theoretical knowledge learned in the classroom with actual production, deepen our mastery and understanding of professional knowledge, and make full use of the favorable conditions of the internship base to cultivate our ability to analyze engineering examples. , Strengthen the comprehensive ability to discover problems, analyze problems, solve problems, etc.
With the progress of the economy, the development of society, and the further improvement of people's living standards, people have put forward higher requirements for the quality and quantity of municipal tap water. The traditional tap water treatment process cannot fully meet the needs. The traditional tap water process needs to be further improved, requiring higher filtration speed and higher filtration accuracy to meet current needs.
Water supply plant process flow one: micro-flocculation filtration
Process flow:
Process features:
This process consists of a high-efficiency mixer, Composed of 863 filtration technology. The characteristics of each component process are as follows:
2.1 The high-efficiency mixer has the advantages of small head loss, good mixing effect, simple equipment, no need for civil structures, no external power equipment, etc., and has good performance within the design flow range. The mixing effect;
2.2863 filtration technology has the characteristics of fast filtration speed, high precision, low backwash water consumption, impact load resistance, air-water backwash and surface water sweep, and good flushing effect. Under the condition of the same water volume, it can effectively reduce the floor space, save civil construction investment, and improve the quality of effluent;
2.3 The flocculant automatic dosing system adopts the principle of swimming potential and can measure online the flocculant after adding flocculant to the water. The net charge intensity can change the dosage in real time to obtain the best flocculation effect, save chemicals and improve the flocculation effect.
Therefore, this process has the characteristics of low investment and high efficiency. Generally suitable for reservoir water, groundwater and stream water with good water quality.
Water supply plant process flow two: coagulation sedimentation filtration
Process flow:
Process features:
This process is composed of a high-efficiency mixer , flocculation tank, sedimentation tank and DA863 filtration technology.