共查询到19条相似文献,搜索用时 125 毫秒
1.
2.
综述了厌氧处理工艺应用于工业废水处理的研究进展,并对厌氧工艺与好氧工艺进行了对比,总结了厌氧工艺的特性;阐释了厌氧工艺的应用现状及未来的发展趋势,重点介绍了厌氧流化床反应器(AFBR)、上流式厌氧滤池、上流式厌氧污泥床反应器(UASB)、厌氧折流板反应器(ABR)、颗粒污泥膨胀床反应器(EGSB)、复合厌氧反应器。 相似文献
3.
4.
5.
6.
7.
IC厌氧反应器的研究与应用进展 总被引:1,自引:0,他引:1
本文介绍了新一代高效厌氧反应器—IC反应器的构造、原理及特点,对其实际应用领域及现状、反应器的启动和污泥颗粒化的研究做了阐述,提出IC反应器现存的问题,并对其发展进行展望。 相似文献
8.
9.
高效厌氧反应器是应用于污水处理的一种生物处理系统,因其运行费用低、能耗少且可产生有用副产物甲烷等优点,在低浓度废水处理中逐渐成为应用研究的热点。在系统考查各种应用于低浓度废水的厌氧工艺基础上,重点介绍了上流式厌氧污泥床、厌氧颗粒污泥膨胀床、厌氧流化床反应器、厌氧膜生物反应器及组合厌氧工艺在低浓度废水处理中的应用。 相似文献
10.
厌氧流化床废水处理技术研究及应用进展 总被引:10,自引:0,他引:10
本文讨论了厌氧流化床反应器(AFBR)从70年代中期以来的发展,介绍了AFBR的部分工业应用实例。着重讨论了AFBR的若干理论及技术问题,其中包括单相和两相AFBR反应器,反应器的启动;微生物固定化载体的选择,冲击负荷对工艺稳定性的影响,反应器中微生物固定化方式等问题,对AFBR今后的研究重点提出了作者的一些看法。 相似文献
11.
完整梯烷脂是存在于厌氧氨氧化菌的厌氧氨氧化体膜上的一类特殊磷脂.分别从厌氧EGSB反应器、好氧SBR反应器、自养脱氮SBBR反应器、以及厌氧氨氧化EGSB反应器中提取了污泥样品中的磷脂混合物,利用高效液相色谱-电喷雾串联三重四级杆质谱法检测了污泥磷脂提取物中完整梯烷脂的种类,分析了完整梯烷脂的特异性,同时利用高通量测序技术测定了自养脱氮SBBR反应器和厌氧氨氧化EGSB反应器污泥中微生物的群落结构.完整梯烷脂的分析结果表明厌氧EGSB反应器和好氧SBR反应器的污泥磷脂提取物中未检测到完整梯烷脂,而自养脱氮SBBR反应器和厌氧氨氧化EGSB反应器的污泥磷脂提取物中检测到了完整梯烷脂.自养脱氮SBBR反应器的污泥磷脂提取物中检测到了5种完整梯烷脂,厌氧氨氧化EGSB反应器的污泥磷脂提取物中检测到了7种完整梯烷脂.高通量测序结果证实自养脱氮SBBR反应器含有Candidatus Brocadia属与Candidatus Jettenia属An AOB,厌氧氨氧化EGSB反应器含有Candidatus Kuenenia属与Candidatus Jettenia属An AOB.结果说明完整梯烷脂为厌氧氨氧化菌所特有的磷脂物质. 相似文献
12.
13.
介绍了厌氧处理原理,并对厌氧处理低浓度废水的最新进展进行了较全面的综述,高效厌氧反应器及组合工艺为这一发展提供了可能.高效厌氧反应器中以膨胀颗粒污泥床(EGSB)反应器为首选,其结构及运行特性决定了它在处理低浓度废水方面具有潜在的优势,但中国EGBB的应用仅处于研究阶段,尚未有生产规模的EGSB;组合工艺对低浓度废水中污染物去除率极高,出水中COD、NH3-N、TP和SS浓度均可达到较高的排放标准,对生活污水、稀释后的工业有机废水等低浓度有机废水处理具有广阔的前景. 相似文献
14.
15.
溶解氧对厌氧颗粒污泥活性的影响 总被引:2,自引:0,他引:2
采用血清瓶培养法,以厌氧膨胀颗粒污泥床(EGSB)反应器中接种的厌氧颗粒污泥为对象,研究了溶解氧(DO)对其产甲烷活性的影响.结果表明,水中溶解氧的升高会致使厌氧颗粒污泥的活性降低.常温22℃下,当溶解氧浓度从000mg/L上升到700mg/L时,其最大比产甲烷速率(SMA)值先后两次分别由75.9 mL·(g·d)-1, 91.1 mL·(g·d)-1下降到47.6 mL·(g·d)-1,71.4 mL·(g·d)-1.但温度的升高可以显著提高其活性并削弱这种变化趋势.与第1次产气实验结果相比,恒温28℃与35℃时,SMA值分别平均提高了54.0%和114.4%.进水中溶解氧的存在并不会对处理系统的运行造成不利影响,厌氧颗粒污泥对溶解氧有较强的耐受性和适应能力.因此,在工程实践中可以不考虑溶解氧因素的影响. 相似文献
16.
Sludge granulation is considered to be the most critical parameter governing successful operation of an upflow anaerobic sludge blanket and expanded granular sludge bed(EGSB)reactors.Pre-granulated seeding sludge could greatly reduce the required start- up time.Two lab-scale and a pilot-scale EGSB reactors were operated to treat Shaoxing Wastewater Treatment Plant(SWWTP) containing wastewater from real engineering printing and dyeing with high pH and sulfate concentration.The microbiological structure and the particle size distribution in aerobic excess sludge,sanitary landfill sludge digested for one year,and the granular sludge of EGSB reactor after 400 d of operation were analyzed through scanning electron microscopy (SEM) and sieves.The lab-scale EGSB reactor seeded with anaerobic sludge after digestion for one year in landfill showed obviously better total chemical oxygen demand (TCOD)removal efficiency than one seeded with aerobic excess sludge after cation polyacrylamide flocculation-concentration and dehydration.The TCOD removed was 470.8 mg/L in pilot scale EGSB reactor at short hydraulic retention time of 15 h.SEM of sludge granules showed that the microbiological structure of the sludge from different sources showed some differences.SEM demonstrated that Methanobacterium sp.was present in the granules of pilot-scale EGSB and the granular sludge produced by landfill contained a mixture of anaerobic/anoxic organisms in abundance.The particle size distribution in EGSB demonstrated that using anaerobic granular sludge produced by sanitary landfill as the seeding granular sludge was feasible. 相似文献
17.
18.
Sludge granulation is considered to be the most critical parameter governing successful operation of an upflow anaerobic sludge blanket and expanded granular sludge bed (EGSB) reactors. Pre-granulated seeding sludge could greatly reduce the required start-up time. Two lab-scale and a pilot-scale EGSB reactors were operated to treat Shaoxing Wastewater Treatment Plant containing wastewater from real engineering printing and dyeing with high pH and sulfate concentration. The microbiological structure and the particle size distribution in aerobic excess sludge, sanitary landfill sludge digested for one year, and the granular sludge of EGSB reactor after 400 d of operation were analyzed through scanning electron microscopy (SEM) and sieves. The lab-scale EGSB reactor seeded with anaerobic sludge after digestion for one year in landfill showed obviously better total chemical oxygen demand (TCOD) removal efficiency than one seeded with aerobic excess sludge after cation polyacrylamide flocculation-concentration and dehydration. The TCOD removed was 470.8 mg/L in pilot scale EGSB reactor at short hydraulic retention time of 15 h. SEM of sludge granules showed that the microbiological structure of the sludge from different sources showed some differences. SEM demonstrated that Methanobacterium sp. was present in the granules of pilot-scale EGSB and the granular sludge produced by landfill contained a mixture of anaerobic/anoxic organisms in abundance. The particle size distribution in EGSB demonstrated that using anaerobic granular sludge produced by sanitary landfill as the seeding granular sludge was feasible. 相似文献
19.
一种新厌氧氨氧化菌的16S rRNA基因序列测试 总被引:4,自引:3,他引:1
运用序批式试验测定厌氧氨氧化污泥的氨氮和亚硝态氮消耗量,求得厌氧氨氧化活性为9.84×10-4 mg·(mg·h)-1,厌氧氨氧化菌消耗NO-2-N与NJ 4-N之比为1.311;采用分子生物学方法从EGSB反应器颗粒污泥中提取细菌总DNA,经纯化、特异引物PCR扩增、克隆、测序等过程,得到厌氧氨氧化菌部分16S rDNA序列;通过系统发育树分析可以发现,在EGSB反应器中富集得到的厌氧氨氧化菌种(anaerobic ammonium-oxidizing Planctomycete cquenviron-1)与Candidatus"Anammoxoglobus propionicus"和Candidatus"Jettenia asiatica"同属,arnaerobic ammonium-oxidizing Planctomycete cquenviron-1与其他厌氧氨氧化菌基因序列的同源性最大为93%.结果表明,前期EGSB反应器富集得到了一种新型厌氧氨氧化菌,该菌株命名为anaerobic ammonium-oxidizing Planctomycete cquenviron-1. 相似文献