| In the arid and semi-arid regions of Xinjiang where lack of water resources, the most effective way to ease the pressure of water resources is reasonable utilization of sewage treatment. According to the survey, there are only a few schools in our country at present conduct the campus community life sewage treatment and reuse engineering. The university belongs to the large water user, if the college waste water can get the proper treatment and utilization, can save a lot of water resources, and the same time can bring social, economic, ecological and environmental benefits. But the winter of Xinjiang weather is very cold, At such temperatures, various wastewater treatment processes run effect is notvery good, even without running the phenomenon occurs, which not only seriouslyaffect the sewage treatment may cause secondary pollution.This paper is on the basis of previous research, Through the scheme comparison, combined with the characteristics of the actual campus community living sewage in Xinjiang university, also design wastewater treatment process, and takes it as an example to carry on experiment research. Determine the operating parameters of the wastewater treatment process at low temperature, and analyze the final operating effect. At the same time, the feasibility of the sewage treatment project of Xinjiang University is evaluated and analyzed, and it provides some technical support for the sewage disposal system in Colleges and universities.1, This experiment after two years of preparation, design, production, installation, commissioning and operation, the daily amount of treatment is 3.6m3. Under the condition of low temperature in Xinjiang, the water temperature of the processor can reach 22 degree centigrade after the temperature of the wastewater treatment structure is reached, and the experiment can run normally.2, Through the quality data analysis to get the best residence time of septic tank in this sxperiment is 12 hours.3, Comparative analysis of the detection data found that the two grade BAF reactor after the 20days to start hanging film successfully. After the normal operation of BAF unit the best outlet in the BaF â…¡ filter layer in height 200cm or above the position, but not exceed the design of ultra high position.4, After the experimental monitoring, through this process, the CODcr of Xinjiang University Campus Sewage from 365.8mg/L fell to 36.3 mg/L, removal rate can reach 90%, BOD5 from 233.0mg/L fell to 3.70mg/L, removal rate can reach 98%, the SS from 457.3mg/L fell to 6mg/L, the removal rate can reach 99%, TP from 5.36mg/L fell to 0.61mg/l, removal rate can reach 89%, ammonia nitrogen from 76.6mg/L drop 0.49mg/L, removal effect can be reached 99%. The test ndex can basically meet the requirements of the standard of life miscellaneous water quality.5, Xinjiang University sewage treatment pilot test of water every day is 3.6m3, every year to produce benefits for 2196 yuan. The emissions of pollutants can be reduced each year as follows: the emissions of ammonia nitrogen is 0.10t, the emission of phosphorus is 0.005t, the emission of CODcr is 0.43t, the emission of BOD5 is 0.30t. The Xinjiang University sewage treatment expansion, improvement, improve the daily processing capacity of after treatment after water secondary use can not only a large number of colleges and universities sewage emissions reduction, but also can improve the environment of colleges and universities, and the same time provides miscellaneous water the economic stability of the water for the campus. Therefore, the implementation of the sewage disposal and reuse projects in Colleges and universities can bring huge social, economic and ecological benefits. |
