移动床活性焦烟气脱硫试验研究

介绍了错流移动床活性焦烟气脱硫试验结果。当空速为（９９４～１３４２）·ｈ－１，颗粒层厚度１００ｍｍ，温度１００～１２０℃时，脱硫效率最高达８６％；颗粒层压力损失与操作气速呈线性增长关系。     

颗粒层除尘器过滤状态压力损失的研究

根据Ｍｅｈｔｅｒ等人提出的过滤状态下颗粒层除尘顺压力梯度比表达式，建立了压力损失数学模型，该模型表明过滤状态下的压力损失与初始压力损失，粉尘在颗粒层中的沉积率和积灰量有关。收石英砂颗粒层的压力损失的实验结果，确定了粉尘沉积率计算公式，最终得出了过滤状态下颗粒层压力损失随过滤时间和粉尘在颗粒层中积灰量的变化规律，从而为合理地选择过滤风速和确定清灰制度提供了依据。     

活性炭催化氧化处理电镀厂含氰废水

本文在理论研究成果基础上尝试活性炭催化氧化处理电镀厂含氰废水的运行试验，结果表明三相流化床工艺由于传质性能优越，处理效率高，配合固定床可连续实现废水的达标排放，给企业带来了良好的环境与经济效益．     

Cd2+ removal from wastewater by sulfate reducing bacteria with an anaerobic fluidized bed reactor

A process of treatment for containing Cd²⁺ wastewater by sulfate reducing bacteria with upflow anaerobic fluidized bed reactor has been studied. When the concentration of COD and Cd²⁺ in the influent were 270 5mg/L and 100mg/L respectively and hydraulic retention time was 4 hours, the removal rate of COD and Cd²⁺ were higher than 73 8% and 99 8% respectively. The reactor can treat as high as 1000mg/L of concentration of Cd²⁺ . The highest removal velocity rate of Cd²⁺ reached 2999 1mg/(L·d). And the possible relationship between sulfate reducing bacteria and methanogenic bacteria was discussed.     

Production and the application of anaerobic granular sludge produced by landfill

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.     

循环流化床锅炉脱硫效率的探讨

热电厂循环流化床锅炉通过使用燃煤中添加以石灰石为主要原料的脱硫剂的方法实现高效脱硫,具有燃烧效率高、煤种适应性宽、氮氧化物排放量低、易实现炉内高效脱硫等特点,近年来一直被热电行业广泛运用。循环流化床锅炉炉温较低,一般在850℃～950℃之间,便于采用脱硫剂脱硫。常用脱硫剂一般以石灰石为主要原料,采用在锅炉内直接与燃煤燃烧接触,达到燃烧中脱硫,而钙硫比的高低对炉内脱硫效果影响较大。以实际范例研究了通过物料衡算方法进行脱硫效率实验来选择脱硫剂及用量的方法。     

组合型生态浮床的动态水质净化特性

研究开发了一种由水生植物、水生动物及微生物膜构建的组合型浮床生态系统.通过中试研究,考察了该浮床对富营养化湖泊水体在动态条件下的净化效果.结果表明,水体交换时间为7d时TN、TP、高锰酸盐指数的去除率分别为53 .8%、86 .0%和35 .4%.污染物的直接净化主体为人工介质和水生植物单元,但在生态浮床中引入河蚬增加水生动物单元,通过食物链的“加环"作用,提高了颗粒性有机物的可溶化和无机化（氨化）以及可生化性,改善了植物吸收以及人工介质单元生物膜中微生物的基质条件,促进微生物的生长和活性,提高了浮床的净化效果.     

多级微氧生物流化床预处理高浓度丙烯酸废水

采用多级微氧生物流化床反应器预处理高浓度丙烯酸废水,考察了进水负荷的影响,并对丙烯酸的降解产物进行了分析.结果表明,反应器在水力停留时间为12 h,水温25℃,进水丙烯酸为3 000～9 000 mg.L-1,丙烯酸容积负荷为6.0～18.0kg.(m3.d)-1的条件下,对丙烯酸去除率在95%以上,COD去除率为15%～30%,出水中丙烯酸浓度<150 mg.L-1.丙烯酸降解的主要中间产物为乙酸和丙酸,平均每1.00 mol的丙烯酸可转化成0.22 mol乙酸和0.36 mol丙酸.多级微氧生物流化床可实现丙烯酸废水的高负荷预处理.     

DASB反应器处理生活污水的试验研究

DASB反应器作为新型现代厌氧反应器,具有结构简单、运行方便,处理效果好等优点,在处理生活污水方面有着广泛的应用前景。研究了常温条件下,DASB处理生活污水的启动运行,得出在最佳水力停留时间6h时,COD和SS的平均去除率分别达到81．48％和86．07％。     

逆流湍动床短程硝化反应器的运行性能及基质抑制动力学模型

采用模拟含氨废水和逆流湍动床(inverse turbulent bed.ITB)反应器研究了短程硝化工艺的运行性能及基质抑制动力学模型.结果表明,采用"预挂膜"和"快速排泥"的联合挂膜方法,以及"低浓度,高负荷"的启动策略,可在20 d将ITB短程硝化反应器NH4+-N负荷升至0.59 kg·(m3·d)-1,实现快...