采用迷宫斜板技术与重力式无阀过滤器处理矿井水

兖州矿业集团公司鲍店煤矿是我国自行设计的全综采机械化、特大型现代化矿井,1986年建成投产。在煤矿生产过程中,由于巷道揭露和采空区塌陷波及到水源,为保障煤矿的安全生产,在井下-430水平设有中央泵房,将矿井水排到地面。矿井水涌水量为450～700m~3/h,矿井水中SS为140～360mg/L,CODcr120～320mg/L,pH值8.0～9.0。 随着矿井的不断发展,对水的需求迅速增长,地下水却日益匾乏。为此,经多次酝酿,在对多种技术方案论证的基础上,结合矿的实际情况,选择     

高温陶瓷除尘装置

日本タクマ和京セラ共同成功开发使用陶瓷过滤器的高温除尘装置，能将垃圾焚烧炉排出的700℃．以上的高温气体直接除尘。     

厌氧污泥床过滤器处理涤纶废水的生产性试验

采用厌氧泥床过滤器 (UASBAF)处理高浓度涤纶废水 ,试验结果表明 :UASBAF反应器具有较高的处理涤纶废水的效能 ,稳定运行容积负荷可达 10～ 12kg/m3 ·d ,水力停留时间 2 2～ 2 4h ,CODCr去除率 80 %左右 ,并具有启动快 ,耐冲击性负荷强的特点。     

住宅小区的污水处理系统—Ecoflo

该文介绍了一种适合南方地区的ECOFLO生物过滤系统。     

自调压纤维过滤器

介绍了自调压纤维过滤器的结构、原理、性能、特点与应用前景。     

电解水制氢技术进展

氢能清洁无污染，并且高效，可再生，被视为未来最有潜力的能量载体。在目前的各种制氢技术中，利用可再生能源所产生的电能作为动力来电解水是最为成熟和最有潜力的技术，是通向氢经济的最佳途径。简要介绍了碱性电解槽，聚合物薄膜电解槽，固体氧化物电解槽的基本原理，研究现状，并对有关问题和电解槽的现状，发展趋势作了讨论。     

微生物过滤法净化恶臭污染物

分析了处理恶臭污染物的吸附法、化学吸收法、催化燃烧法、生物处理法等优缺点 ,并介绍了微生物过滤器法净化恶臭物质的过程及工艺实例。     

Degradation of 2,6-di-tert-butylphenol by an isolated high-efficiency bacterium strain

An aerobic bacterium strain, F-3-4, capable of effectively degrading 2,6-di-tert-butylphenol(2,6-DTBP), was isolated and screened out from an acrylic fiber wastewater and the biofilm in the wastewater treatment facilities. This strain was identified as Alcaligenes sp. through morphological, physiological and biochemical examinations. After cultivation, the strain was enhanced by 26.3% in its degradation capacity for 2,6-DTBP. Results indicated that the strain was able to utilize 2,6-DTBP, lysine, lactamine, citrate, n-utenedioic acid and malic acid as the sole carbon and energy source, alkalinize acetamide, asparagine, L-histidine, acetate, citrate and propionate,but failed to utilize glucose, D-fructose, D-seminose, D-xylose, sedne and phenylalanine as the sole carbon and energy source. The optimal growth conditions were determined to be: temperature 37℃, pH 7.0, inoculum size 0.1% and shaker rotary speed 250 r/min. Under the optimal conditions, the degradation kinetics of 2,6-DTBP with an initial concentration of 100 mg/L was studied. Results indicated that 62.4% of 2,6-DTBP was removed after 11 d. The degradation kinetics could be expressed by Eckenfelder equation with a half life of 9.38 d. In addition, the initial concentration of 2,6-DTBP played an important role on the degradation ability of the strain. The maximum initial concentration of 2,6-DTBP was determined to be 200 mg/L. Above this level, the strain was overloaded and exhibited significant inhibition.     

Performance of biotrickling filters packed with structured or cubic polyurethane sponges for VOC removal

Two identical bench-scale biotrickling filters (BTFs), BTF 1 and BTF 2, were evaluated for toluene removal at various gas empty bed contact times (EBCTs) and organic loadings. BTF 1 and BTF 2 were packed with structured and cubic synthetic polyurethane sponges, respectively. At a constant toluene loading of 16 g/(m3 hr), toluene removal efficiencies decreased from 98.8% to 64.3% for BTF 1 and from 98.4% to 74.1% for BTF 2 as gas EBCT decreased from 30 to 5 sec. When the toluene loading increased from 35 to 140 g/(m3 hr) at a gas EBCT of 30 sec, the removal efficiencies decreased from 99.1% to 77.4% for BTF 1 and from 99.0% to 81.5% for BTF 2. The pressure drop for both BTFs increased with increased air flow rate, and did not significantly vary while the toluene loading was increased under similar operation conditions. BTF 1 and BTF 2 could start up successfully within 19 and 27 days, respectively, when packed with fresh sponge media, and the performances could be restored in 3–7 days after biomass was removed and wasted from the media. BTF 2 displayed higher removal efficiency even under shorter EBCT or higher loading rate than BTF1 when other operation conditions were similar, while it showed lower pressure drop than BTF 1 during the whole period of operation. These results demonstrated that both BTFs could treat waste gas containing toluene effectively.