【作者】 孔祥娟；

【导师】 吴之丽；

【作者基本信息】 北京工业大学 ， 市政工程， 2000， 硕士

【摘要】 本论文介绍了新型复合反应器的研制与开发情况，着重研究了此种反应器的性能特点，并研究了用此反应器处理高浓度有机废水（豆制品废水）的效果。研究结果如下： 1．测定不同填料对充氧性能的影响，从而筛选出两种较好的填料，即“博适”填料和改型双通道蜂窝填料； 2．设计开发了一种新型复合反应器。该反应器由三部分组成。第一部分为流化床，其内投加“博适”填料；第二部分为固定床部分，其内装填改型双通道蜂窝填料；第三部分是沉淀段，对出水混合液进行初步泥水分离，截留污泥； 3．测定新型复合反应器对豆制品废水的处理效果。进水浓度在1000～2000mg/L范围内，COD-污泥负荷率N_s处于0.45～0.74〔kgCOD/（kgMLVSS·d）〕，COD容积负荷N_v处于1.31～2.48〔kgCOD/（m³·d）〕，一般去除率都保持在85％以上，出水水质稳定。 4．对复合反应器内各种状态的微生物量进行测定，悬浮状态活性污泥浓度为0.425g/L，蜂窝填料上生物膜折算成污泥浓度为3.44g/L，“博适”悬浮状填料装填量为V₁的15.9％，生物量折算成污泥浓度为1.92g/L。 5．测定各种状态微生物降解COD的活性大小次序为悬浮状微生物＞改型双通道蜂窝＞呈悬浮状填料上的生物膜。 6．新型复合反应器处理有机污水时，产生污泥量少，COD容积负荷在1.5～2.24KgCOD/m³·d范围内，出水污泥浓度为0.342～0.661g/L范围内波动，产泥量为0.24～0.31Kg干泥/KgCOD。 7．对复合反应器处理豆制品高浓度有机废水进行了生化动力学参数的测定，测定结果是： A．在试验条件下，新型复合反应器处理豆制品废水属二级生化反应。对于悬浮态微生物，反应速度常数K=24.78d^-1，附着态微生物其反应速度常数K=75.96d^-1； B．反应器COD污泥去除负荷U_s＝4.01～7.32d^-1时，悬浮状态微生物污泥产率Y_T=0.5610mg微生物/mg基质，衰减系数K_d=0.6946d^-1；污泥负荷U_s=4.45～7.37d^-1时，附着状态微生物污泥产率Y_T=0.4403mg微生物/mg基质，衰减系数K_d=0.2509d^-1。更多还原

【Abstract】 Introduce the development process of a new-style hybrid biological reactor, lay stress on studying the capability and characteristic of the reactor, and also report the effect of treatment of high concentration organic wastewater using the reactor. The result demonstrates that: 1. Screened out two better filling Boshi?and remodel beehive filling. 2. Designed a new-style hybrid biological reactor which was composed of three parts. The first part is fluid bed . The second part is fixed bed . The third part is sedimentation part. 3. Treatment effect: the ratio of COD removal is steady above 85% ,with Nv being l.31?.48 (kgCODI(m3d)) 4. Take measure of the amount of the micro-organic : the concentration of suspended sludge is 0.425gIL , the concentration of appendiculate sludge on beehive filling is 3 .44g/, the concentration of appendiculate sludge on oshi?filling is I .92gIL. 5. Some basic biochemical parameters measured in the reactor as follows: (1) The reaction of treatment of soybean products wastewater belongs to the second-order reaction. To the suspended micro-organic , the constant of reaction velocity K is 24.78 d?.To the appendiculate micro-organic , the constant of reaction velocity K is 75.96 d? (2) As the Us being 4.01 ?.32&? the sludge productivity of suspended micro-organic YT is 0.56 10 mg micro-organic / mg substrate , the attenuation coefficient Kd is 0.6946 d-1.As the Us being 4 45?.37d-1, the sludge productivity of appendiculate micro-organic YT is 0.4403 mg micro-organic / mg substrate , the attenuation coefficient Kd is 0.2509 d-1.更多还原