共查询到18条相似文献,搜索用时 125 毫秒
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研究了使用MBBR的城市污水处理工艺的早期开发、已确立的应用和最新进展。概述了MBBR技术早期发展的主要驱动因素,以及MBBR工艺的原理及处理流程,分析了MBBR工艺的优势。介绍了常用生物载体的类型和特点,以及生物膜的形成和胞外聚合物(EPS)的作用。此外,还调查了MBBR工艺在处理生活污水、工业废水、河流治理及污水厂提标改造中的应用。紧凑的占地面积和高性能的碳和氮去除能力使MBBR成为小型分散设施或现有设施升级改造的重要选择。 相似文献
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随着人们对含氮废水所引起的水体富营养化等环境问题的重视以及污水排放标准日益严格,近年来移动床生物膜反应器(MBBR)在有机物降解以及生物脱氮等方面的应用引起了越来越广泛的关注,本文从MBBR反应机理的角度综述了MBBR工艺应用过程中的影响因素(如溶解氧、温度等),此外通过MBBR与其他工艺的耦合,阐述了MBBR的使用现... 相似文献
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经过二十多年的发展,移动床生物膜反应器工艺(MBBR)作为成熟的污水生物处理技术得到广泛的应用,文章介绍了MBBR工艺的原理和特点以及近些年国内外对其研究和实际应用的现状。 相似文献
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塑料在污水处理悬浮载体生物膜工艺中的应用 总被引:6,自引:0,他引:6
介绍了塑料在污水处理悬浮载体生物膜工艺(MBBR)中作为悬浮填料的应用情况,讨论了悬浮填料对塑料的要求,悬浮填料制品的形状及其对污水处理效果的影响,并对目前塑料悬浮填料所存在的问题和发展动向进行了探讨。 相似文献
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Xiao-Bao Gong 《分离科学与技术》2016,51(9):1589-1597
A four-stage lab-scale treatment system [anaerobic moving bed biofilm reactor (MBBR)-aerobic MBBR-ozonation-aerobic MBBR in series] was investigated to treat textile dyeing wastewater. The MBBRs were operated in a continuous horizontal flow mode. To determine the optimum operating conditions, the effect of hydraulic retention time (HRT) and ozonation time on pollutant removal were analysed by continuous and batch experiments. The optimum operating conditions were found to be 14 h HRT for both anaerobic and no. 1 aerobic MBBRs, 14 min ozonation time and 10 h HRT for no. 2 aerobic MBBR. The average influent concentrations of chemical oxygen demand (COD), suspended solids (SS), ammonia and colour were 824 mg/L, 691 mg/L, 40 mg/L and 165°, respectively. Under these conditions, the average effluent concentrations of COD, SS, ammonia and colour were 47 mg/L, 15.2 mg/L, 5.9 mg/L and 6.1°, respectively, corresponding to total removal efficiencies of 94.3%, 97.8%, 85.3% and 96.3%, respectively. The final effluent could meet the reuse requirements of textile industry. The anaerobic MBBR process improved the biodegradability of the raw wastewater, while the two aerobic MBBRs played an important role in removing COD and ammonia. The ozonation process enhanced the biodegradability of no. 1 aerobic MBBR effluent, and finally, deep treatment was completed in no. 2 aerobic MBBR. The combined process showed a promising potential for treatment of high-strength dyeing wastewater. 相似文献
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移动床生物膜反应器处理污水的研究应用进展 总被引:29,自引:0,他引:29
简单介绍了移动床生物膜反应器(MBBR)的工艺原理,这种反应器不同于其他生物膜反应器的工艺特点。综述了最近国内外应用这种处理方法在工业污水、生活污水以及生物脱氮除磷方面的研究和应用现状。MBBR是集传统活性污泥法和生物膜法优点的一种高效的污水处理方法,针对该项技术目前在国内外的研究应用中存在的问题.指出了它的发展趋势与应用方向。 相似文献
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随着我国科学技术的不断进步,化工业中的废水处理水平也在逐步提高,各种新型技术被应用到实际生产中,其中比较典型的就是纳滤。作为一种新型的分离技术,它不仅可以有效处理化工废水,还能将其中的有效物质进行回收,提高利用率,所以在化工废水处理中的应用范围也越来越广。从纳滤膜分离技术的工作原理出发,以盐化工的废水处理为例,对纳滤膜实际应用进行了具体分析。 相似文献
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纺织工业废水深度处理高级氧化法研究进展 总被引:2,自引:1,他引:1
介绍了纺织工业废水高级氧化法深度处理技术的原理、进展及应用前景,并对其优缺点进行了评述。利用高级氧化法对纺织工业废水进行深度处理,使其满足排放标准或回用于工业生产,具有重大的经济效益和环境效益,是今后纺织工业废水深度处理技术的研究发展方向之一。 相似文献
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Application of A2O moving-bed biofilm reactors for textile dyeing wastewater treatment 总被引:1,自引:0,他引:1
Hye Ok Park Sanghwa Oh Rabindra Bade Won Sik Shin 《Korean Journal of Chemical Engineering》2010,27(3):893-899
A three-stage pilot-scale moving-bed biofilm reactor (MBBRs, anaerobic-anaerobic-aerobic in series) was investigated to treat
textile dyeing wastewater. Each reactor was filled with 20% (v/v) of polyurethane-activated carbon (PU-AC) carrier for biological
treatment. To determine the optimum operating conditions of MBBRs, the effect of PUAC carrier, its packing percentage (v/v%)
and pH control on COD removal were analyzed by batch experiments. The MBBRs were inoculated with activated sludge obtained
from a local dyeing wastewater treatment plant. The MBBR process removed 86% of COD and 50% of color (influent COD=608 mg/L
and color=553 PtCo unit) using relatively low MLSS concentration (average 3,000 mg/L in biomass attached to PU-AC carrier)
and hydraulic retention time (HRT=44 hr). The MBBR process showed a promising potential for dyeing wastewater treatment. 相似文献