【作者】 崔连成；

【导师】 杨志生；

【作者基本信息】 天津理工大学 ， 应用化学， 2006， 硕士

【摘要】 SHARON-ANAMMOX工艺是一种高效低耗全新工艺,是符合可持续发展战略的创新工艺,该工艺的出现为解决传统生物脱氮工艺存在的问题提供了新的发展方向,本文对该工艺的研究工作如下:1.实验通过研究温度、pH对两种细菌生长的影响得到亚硝化细菌生长最适温度30℃、pH范围7.0～8.0;同时研究得出DO在0.5mg·L^-1时,可以实现亚硝化细菌的增殖而硝化细菌却受到明显的抑制。2.在厌氧氨氧化细菌的筛选培养中得出,温度在35℃时、pH 7.0～8.0时,厌氧氨氧化细菌生长最好。对影响厌氧氨氧化细菌增殖的异养菌进行筛选去除,并对厌氧氨氧化细菌进行富集培养,去除异养菌之后厌氧菌的增殖量是去除异养菌之前的近3倍。可见,异养菌对厌氧氨氧化菌的生长有较强的干扰,去除异养菌实现了厌氧氨氧化菌一定程度的增殖。3.采用生物膜法成功启动了SHARON限氧折流板反应器、ANAMMOX厌氧折流板反应器。研究了温度、DO和pH同时控制对亚硝化的控制效果,同时研究温度、异养菌的去除和pH对厌氧过程降解效果的影响。得出最佳工艺条件SHARON过程(T=25℃, DO=0.5 mg·L^-1和pH 7.0～8.0)和ANAMMOX过程（T=25℃,去除异养菌和pH 7.0～8.0）,氨氮总去除率达到91%,COD的去除率也达到91.7%,不但达到实验预定的目标,而且与其它高温的工艺相比,节省了大量的能源消耗。4.对SHARON过程、ANAMMOX过程中的影响因素进行了动力学分析,得出各因素对反应过程单一影响的曲线图,并通过回归得出各因素的动力学参数。试验还通过多元统计中的主成分分析方法分析得到各因素对反应速率的影响程度:SHARON过程,影响因素依次为温度﹥DO﹥NH₄⁺浓度﹥NO₂^-浓度;ANAMMOX过程,影响因素依次为温度﹥pH≈NH₄⁺浓度﹥NO₂^-浓度,其中pH与NH₄⁺浓度影响程度较为接近,根据上述分析结果建立近似数学模型。更多还原

【Abstract】 The SHARON-ANAMMOX process is a new technology according with continuable development. It shows a new way for nitrogen removal to resolve problems in traditional nitrogen removal techniques. The studies on this process were as follows:1. The effects on growths of both bacteria by temperature and pH was studied and the results showed that best conditions for nitrisomonas were T （30℃） and pH （7.0～8.0）. And also the growth of nitromonas and inhibition of nitrobacter could be carried out When DO was 0.5mg·L^-1.2. The growth of anammox bacteria was best when temperature was 35℃and pH was 7.0～8.0 in the screen and cultivation. The growth of anammox bacteria was three times of that before Heterotrophic bacteria were removed. So it can be concluded that Heterotrophic bacteria interfered in the proliferation of anammox bacteria.3. The SHARON oxygen limited reactor and ANAMMOX baffle reactor were started up successfully. The synthetical effects on nitrification by temperature, DO and pH were studied. And also the effects on anammox by temperature, pH and removal of Heterotrophic bacteria were carried on. The optimal process conditions were gained and total aim of degradation was fulfilled. More energy consume was reduced compared with other traditional process.4. The dynamical effects on SHARON-ANAMMOX by each factor were analyzed respectively and dynamical parameters were generated by non-linear fit. The main analysis was used to analyze the impacting degree on velocity by each factor and the sequence of SHARON process was temperature, DO, concentration of NH₄⁺ and concentration of NO₂^-; the sequence of ANAMMOX process was temperature, pH, concentration of NH₄⁺ and concentration of NO₂^-. The proximate mathematical models were founded.更多还原