共查询到17条相似文献,搜索用时 78 毫秒
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采用上流式厌氧污泥床(UASB)反应器,以高浓度蛋白质废水为处理对象,研究了中温条件下UASB反应器的启动、颗粒污泥特性和废水处理效果。结果表明:采用接种颗粒污泥与消化污泥的混合泥进行培养,并逐步提高进水浓度,运行88 d后,可实现UASB反应器的启动。当进水COD值达到7000 mg/L左右,容积负荷2.00 kg ... 相似文献
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硫酸厂酸性含氟污水处理现状分析及对策 总被引:2,自引:0,他引:2
从生产工艺过程分析了硫酸污水中氟的来源和存在形式 ,剖析了现有污水处理工艺过程存在的四方面缺陷 ,并从实施清洁生产、实现过程减污以及完善末端治理设施两方面 ,提出改进对策。 相似文献
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《分离科学与技术》2012,47(5):626-634
This study was conducted for the treatment of up-flow anaerobic sludge blanket (UASB) reactor effluent by polymer assisted coagulation–flocculation process. The efficiency of alum, FeCl3, and polyaluminum chloride (PAC) was observed alone and in coupled with anionic polymer (Synpol). The results revealed that FeCl3 and PAC are efficient to remove 99% of turbidity, 83% of total suspended solids (TSS), 82% and 85% of biochemical oxygen demand (BOD) and chemical oxygen demand (COD), respectively, and 99.5% removal of total coliforms (TC) and fecal coliforms (FC). The addition of anionic polymer to alum, FeCl3, and PAC reduces the sludge volume upto 25%. 相似文献
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UASB+接触氧化法处理食品废水的工程应用 总被引:1,自引:0,他引:1
介绍了采用隔油+调节池+UASB+接触氧化法工艺处理高浓度食品废水的工艺设计实例,并对运行效果进行了分析。从该运行结果看,食品废水采用该工艺是成功的,该工艺占地面积小,产生剩余污泥量少,处理成本低,适应强,且运行效果稳定,出水水质各项指标均可达到现行的排放标准。 相似文献
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屈战成 《硫磷设计与粉体工程》2009,(3)
用硫酸装置净化工序排放的污水代替工艺水,作为磷酸生产萃取工序真空过滤三洗水,介绍了运行情况及完善措施,通过运行试验实现了污水零排放,达到了环境保护和清洁生产的要求. 相似文献
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Disinfection of anaerobically treated effluent (UASB) was carried out to eliminate the enteric pathogens by using UV irradiation, peracetic acid, H2O2, O3 and advanced oxidation processes (O3/H2O2, O3/UV and H2O2/UV). Re-growth potential of these pathogens was monitored in terms of time and temperature. Inactivation of pathogens by ozone at the rate of 300 mg/h for 20 minutes approached 99%. UV irradiation resulted in 99% pathogen removal at irradiation time of 120 seconds. A dose of 170 mg/L H2O2 eliminated more than 99% pathogens. Samples disinfected with UV, H2O2 and O3 showed gradual re-growth with an increase in time and temperature (from 20 to 35°C). However, disinfection with AOPs proved to be the most effective tool resulting in reduction of treatment time taken by individual processes, also the disinfected samples showed minimal re-growth revealing the superiority of their combined effects. 相似文献
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升流式厌氧污泥床(Upflow Anaerobic Sludge Blanket,简称UASB)反应器是荷兰学者Lettinga等人在70年代初开发的,主要用于处理高有机负荷的工业废水。由于其结构紧凑、处理效率高、节能等优点,近年来,各国开始探索UASB在处理负荷较低的生活污水和城市综合废水上的应用。该文介绍了利用UASB处理城市生活污水试验的结果;试验现场设在上海奉贤,进水为污水泵站的高有机负荷的原水,CODCr的范围:200~2 000 mg/L,UASB内污泥浓度:4 100 mg/L。出水进入后续的高负荷生物滤池进行下一步处理。该UASB是整个处理流程6段中的一段。当水力停留时间为6 h时,CODCr平均去除率为37.0%;BOD5平均去除率为36.2%;SS平均去除率为38.9%。 相似文献