小型一体化生物接触氧化装置处理大学校园污水的试验研究

发布时间：2018-01-07 06:44

本文关键词：小型一体化生物接触氧化装置处理大学校园污水的试验研究　出处：《新疆农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：分散式污水处理系统是对现有集中式大型污水处理厂的有效补充,特别是在水资源短缺和有持续性供水需求的干旱地区更受欢迎。尽管低能耗、去除效率高的集成小型分散式污水处理装置在这些年已经市场化,但是它们的实际表现和在当地的现实适应性还存在问题。为了将来更好的应用,需要选用一些重要的参数和指标对其进行进一步的测试。同时,对当今新疆来说,将校园污水再生利用于园林绿化或其它方面尤为重要。基于当前新疆农业大学校园污水水质和水量的分析,本文针对生物接触氧化工艺和小型一体化装置的污水处理性能进行试验研究。本试验,主要通过装置对污染物指标CODCr、NH3-N和SS的去除率来分析HL、GWR、HRT等关键因素对运行效果的影响。即固定装置GWR为7:1,HRT为5h,HL分别为2m3/(m2?h)、3 m3/(m2?h)、4m3/(m2?h)、5 m3/(m2?h)和6 m3/(m2?h)时,通过装置对指标CODCr、NH3-N、SS的去除情况,来确定最佳HL;固定装置HL为4m3/(m2?h),HRT为5h,GWR分别为3:1、5:1、7:1、10:1和12:1时,通过装置对指标CODCr、NH3-N、SS的去除情况,来确定最佳GWR;固定装置HL为4m3/(m2?h),GWR为7:1,HRT分别为3h、4h、5h、6h和8h时,通过装置对指标CODCr、NH3-N、SS的去除情况,来确定最佳HRT。结果显示,HL、GWR和HRT技术上和经济上最优的三个参数分别是4m3/(m2?h)、7:1和5h,并且,CODCr、NH3-N和SS的平均去除率分别高达92%、76%和83%。出水稳定达到了《城市污水再生利用——城市杂用水水质》(GB/T18920-2002)的规定。分析在组合优化工况下,即HL为4m3/(m2?h)、GWR为7:1、HRT为5h时,装置对指标CODCr、NH3-N、SS的去除情况。另外,本文针对该方法的进一步改善及其适应性进行了探讨,以上研究对该方法在未来的发展及应用提供参考依据。
[Abstract]:Decentralized sewage treatment systems are an effective complement to existing centralized large sewage treatment plants, especially in arid areas where water resources are scarce and where there is a need for sustainable water supply, albeit with low energy consumption. Highly efficient integrated and decentralized sewage treatment plants have been marketed in recent years, but there are still problems in their actual performance and local adaptability for better application in the future. It is necessary to select some important parameters and indicators for further testing. At the same time, for Xinjiang today. It is very important to reuse campus sewage in garden or other aspects. Based on the analysis of water quality and quantity in Xinjiang Agricultural University campus at present. In this paper, the biological contact oxidation process and the sewage treatment performance of a small integrated plant were studied. In this experiment, the pollutant index CODCr was mainly carried out by the device. The removal rate of NH3-N and SS was used to analyze the influence of key factors such as HLN GWR HRT on the operation effect, that is, the fixed device GWR was 7: 1 and HRT was 5 hours. HL is 2 m3 / m2? 3 m3 / m2? 4 m3 / m2? 5 m3 / m2? H) and 6 m3 / m 2? H) to determine the best HL1 by removing the index of CODCrN NH3-Nnn SS, and the fixed device HL was 4 m3 / m 2? When the HRT is 5 h, the GWR is 3: 1, 5: 1, 1: 7: 1 10: 1 and 12: 1, respectively, the removal of CODCr-NH3-NCSS by the device is carried out. To determine the best GWR; Fixed device HL 4 m3 / m 2? When the GWR was 7: 1, the HRT was 3 h, 4 h, 5 h and 8 h respectively, the removal of CODCrn NH3-NNSS was carried out by means of the device, and the results were as follows: (1) when the GWR was 7: 1, the HRT was 3 h and 4 h, respectively. The results show that the three optimal parameters of GWR and HRT are 4m3 / m2? The average removal rates of NH3-N and SS were as high as 92% for 7: 1 and 5 h, respectively. 76% and 83. The effluent has reached the requirements of "reuse of municipal sewage-quality of municipal miscellaneous water" (GB / T 18920-2002). The analysis is carried out under the condition of combinatorial optimization. That is, HL is 4 m3 / m2? When the GWR is 7: 1 and HRT is 5 h, the removal rate of CODCrn NH _ 3-N _ (3) -N _ (2) SS is obtained by the device. In this paper, the further improvement and adaptability of the method are discussed, which provides a reference for the development and application of the method in the future.
【学位授予单位】：新疆农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X703

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