【正文】 h this investigation, I learned a lot about their own professional knowledge, but many are less than the myself have a new professional knowledge and future direction of their work have a preliminary this survey, I encountered many difficulties, but I try to the process, I learned how to municate with people and munication, but also learned how to solve problems this investigation, I learned that sewage treatment is a prehensive technical energy the years, energy consumption, operating costs hindered the construction of urban sewage treatment plants to some extent high, built of some treatment plants is also due to the reason in the cut consumption and semishutdown the future for a long period of time, energy issues will bee the bottleneck of urban sewage solve the energy consumption of the wastewater treatment plant problems, make reasonable energy distribution, sewage treatment plant has been decided to run benefit the quality of the key consumption is low, the decisive factor is the future of a new sewage treatment plant feasibility analysis, develop a high energy efficiency of sewage treatment technology, reasonable design and operation of sewage treatment plants, sewage treatment plants is bound to be the future design and operation of the only this end, the implementation of the sewage treatment plant management model innovation may well be a feasible is an indispensable part, is a necessary condition for human is a shortage of water resources at national, regional water shortage is particularly the rapid economic development and urbanization, and water pollution problems are more and improve urban water supply, water conservation and water pollution control work to promote sustainable economic and social development, to maintain ecological balance, has bee an important measure of social development, but also the obligation of every citizen, as a university students, we should start from ourselves, from scratch.第四篇：觀瀾污水處理廠調(diào)查報(bào)告結(jié)合寒假實(shí)際經(jīng)歷，寫一個(gè)圖文并茂不少于2000字的調(diào)查報(bào)告。s water shortage Propulsion wastewater treatment and reuse work fully reflects the scientific concept of development is about people39。which is still inside the bacteria at the same time denitrification, nitrification produce mutual foam product, followed by precipitation of particles blowing blower to prevent the accumulation of sand, so to dispose of the soil and design flow is 3325m3 / h.(4)cyclone grit chamber The main device is a cyclone grit chamber sandwater separator, the advantage of small size, grit effective, easy to install and so Flow 3325 m3 / h grit chamber diameter , depth of 4m.(5)metering equipment There are many instruments after grit chamber, an electromagnetic flowmeter after grit chamber, sewage flow into the plant can be continuously monitored, and set water quality monitoring instruments, such as PH meter, thermometer, SS meter, the signal transmitted to the central control measure room, to prevent any flaws in.(6)Select the anaerobic pond Anaerobic outdoor pool has a slowmoving selection submersible mixer, return sludge and sewage tank in contact with mixed reactions, can achieve part of the role of phosphorus, and improve the properties of the activated sludge, but also the separation of both aerobic and anaerobic bacteria flow 1250m3 / h, pool effective volume 3925 m3 / h.(7)Orbal oxidation ditch Aubert oxidation ditch, it is elliptical reinforced concrete pool, divided into pool is divided into three annular channel, turn sewage into the outer channel, the channel and inside the channel, and finally by the center of the island and into the sedimentation tank with water flow 1250m3 / h, every seat effective volume 11000m3, the mixture concentration g / l, the design depth of , HRT and oxidation ditch is a core part of the entire processing system, its main function is to make the cultivation of domesticated activated sludge degradation, adsorption, aggregation of organic matter, and through the action of bacteria so that the suspended particles and dissolved particles tend to precipitate, resorted to water The organic content is seat is installed oxidation ditch aeration plate spinning disc 10 sets, outside the channel dissolved oxygen control in / l, in the meantime oxidation, nitrification and intermediate channel and an outer channel dissolved oxygen controlled at 1mg / l and 2mg / l, of organic matter in sewage further oxidation, to ensure the organic content of the effluent to meet the design requirements.(8)sedimentation Water will be discharged into the oxidation ditch treatment after sedimentation tanks, sedimentation tanks using radial flow sedimentation tank, water center, surrounded by water, the diameter D = 38m, a total of with wells located two blocks, through contact with sewage into the pool after seat settling ponds located around the drive fullbridge scraping suction machine, sedimentation tank sludge and sludge pumping station to flow 1813m3 / h, maximum surface l