The utility model provides a mass transfer enhanced anaerobic reactor. The anaerobic reactor can increase the effect of gas and liquid mass transfer by alternately arranged sieve plates arranged in a circular form, which can improve the effect of gas and liquid mass transfer; the sieve holes are two kinds, one is a trumpet type hole, one is a trumpet type hole, and the anaerobic digestion of sludge is produced by biogas. The fluid flows upward from the positive bell mouthpiece of the sieve plate by pressure, and a few liquid flows upward through the sieve hole, most of the liquid moves around the sieve plate, and the gas and liquid disturbance is further increased; the granular sludge falls down from the inverted bell mouth of the sieve plate by the action of gravity, and the fluid is disturbed to produce shear force, which can promote the granular sludge. Formation. This method can effectively promote the mass transfer between gas, liquid and solid, is beneficial to the contact metabolism of anaerobic microorganism, and improves the anaerobic treatment effect and methane conversion rate of sewage.
【技术实现步骤摘要】
一种传质强化的厌氧反应器
本技术属于污水处理
,尤其涉及一种传质强化的厌氧反应器,特别涉及的是增设筛板的厌氧反应器。
技术介绍
UASB反应器是开发最早、应用最普遍的厌氧反应器之一,由荷兰Wageingen农业大学的Lettinga教授等人于20世纪70年代研发成功。迄今,全球安装的UASB反应器已经超过3000座。UASB的工作过程一般是,原水经水泵进入UASB反应器底部,向上依次经过悬浮污泥层、三相分离器和溢流堰,在悬浮污泥层与厌氧污泥进行接触,经复杂的生化反应后,与产生的沼气和载带的污泥向上流动,经三相分离器分离,气体在气室内收集并排出,出水经溢流堰溢流排出。UASB反应器具有结构简单、容易操作的特点,然而,UASB反应器COD容积负荷不高,处理效率低,一直饱受行业诟病,如何提高厌氧生物处理系统的处理效能及运行稳定性,一直是困扰国内外厌氧生物
学者和工程人员的难题。理论上,1gCOD在25℃、标准大气压下可转化为382mL甲烷气体,但即使实验室水平,废水的厌氧甲烷转化率不高于理论值的70%,实际的UASB工程由于外界因素干扰,如进水温度、pH值、 ...
【技术保护点】
1.一种传质强化的厌氧反应器,其特征在于,所述厌氧反应器内设置圆缺型交替排列的筛板,所述筛板间距与反应器直径之比为0.5‑1∶1,筛板面积为反应器截面积的0.5‑0.75倍;所述筛板上开有正喇叭型筛孔和倒喇叭型筛孔,所述喇叭型筛孔大小截面之比为2‑3∶1,直径为2‑5mm。
【技术特征摘要】
1.一种传质强化的厌氧反应器,其特征在于,所述厌氧反应器内设置圆缺型交替排列的筛板,所述筛板间距与反应器直径之比为0.5-1∶1,筛板面...
【专利技术属性】
技术研发人员:曹井国,段书惠,王春虎,杨宗政,
申请(专利权)人:天津科技大学,
类型:新型
国别省市:天津,12
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