共查询到19条相似文献,搜索用时 78 毫秒
1.
2.
3.
4.
5.
6.
7.
通过利用WYS-50型活性炭再生炉对东北制药总厂的部分废炭进行吸附能力的恢复及再生炭的应用试验,证实了WYS-50型活性炭再生炉的实际可行性。为设备的推广使用提供了科学依据。再生炭的吸附能力比废炭提高400% ̄500%。 相似文献
8.
本文从实验出发,对粒状活性炭吸附有机物后的再生与水的预处理深度的关系进行了研究,对比实验得出:入口水浊度从4FTU降至0.1FTU,热碱洗脱再生时,洗脱率从51%增至93.6%,相当于使用寿命延长6倍。从而得出结论:若保证活性炭入口水浊度接近零,活性炭吸附有机物后就容易再生。此时,热碱洗脱法可代替焙烧法,对活性炭进行经济、方便、有效地再生,水的彻底预处理是使用活性炭吸附有机物的最重要的先决条件。 相似文献
9.
10.
11.
Aleksi Eskelinen Alexey Zakharov Sirkka‐Liisa Jämsä‐Jounela Jonathan Hearle 《American Institute of Chemical Engineers》2015,61(11):3683-3698
A dynamic model of a multiple hearth kaolin calciner has been developed and is presented in this article. This model describes the physical‐chemical phenomena taking place in the six furnace parts: the solid phase, gas phase, walls, cooling air, rabble arms, and the central shaft. The solid phase movement, in particular, is described by a novel mixing model. The mixing model divides the solid bed in a hearth into volumes and the distribution of their contents, after one full central shaft rotation, is identified by the pilot experiments. First, the model is validated by the industrial data, and then the dynamics of the multiple hearth furnace is studied by introducing step changes to the three manipulated variables: the feed rate, and the gas, and air flows supplied. The responses of the gas phase temperature and solid bed component profiles are analysed and the results are discussed. © 2015 American Institute of Chemical Engineers AIChE J, 61: 3683–3698, 2015 相似文献
12.
采用生物活性炭技术深度处理焦化厂生化后出水。结果表明,焦化厂生化后出水(COD为200mg/L、色度为900度)经生物活性炭处理后,COD降为46.9mg/L、色度降至25.8度,达到国家工业再生用水水质标准(COD小于60mg/L,色度小于30);并与颗粒活性炭深度处理焦化废水相比,生物活性炭法处理焦化废水COD及色度的去除率分别提高了13.4%和5.2%,且生物活性炭使用寿命是颗粒活性炭的3.3倍,生物活性炭的吨水材料费为1.4元,比颗粒活性炭低3.26元。生物活性炭法是一种有效、低成本的焦化废水深度处理方法。 相似文献
13.
14.
苯海因生产废水中CODcr、挥发酚等污染物浓度都比较高,采用三级Fenton+活性炭吸附处理后,CODcr、挥发酚均能达到国家一级排放标准。 相似文献
15.
16.
17.
活性炭负载TiO2光催化降解水中苯酚的研究 总被引:7,自引:0,他引:7
采用溶胶-凝胶法制备活性炭负载型TiO2光催化剂,用XRD分析了其晶型结构,以300 W中压汞灯为实验光源对苯酚进行了光降解研究。考察了催化剂热处理温度、TiO2负载量、催化剂用量、降解温度、苯酚初始浓度和催化剂使用次数等因素对苯酚降解率的影响。结果表明,浓度为15 mg·L-1的苯酚溶液,催化剂焙烧温度为500 ℃, 负载质量分数为33.3%的TiO2,用量为1.8~3.0 g·L-1,30 ℃连续光照3 h时,苯酚溶液的降解率可达到98.3%。 相似文献
18.
Fundamentals of electrosorption on activated carbon for wastewater treatment of industrial effluents 总被引:17,自引:0,他引:17
The potential of electroadsorption/desorption on activated carbon for waste water treatment of industrial effluents is studied. Adsorption isotherms of hydrophobic differently charged model substances on activated carbon were measured in order to obtain specific information about the influence of the charge (+1,–1 and 0) on the adsorbability of comparable, aromatic species and the influence of the bed potential on the adsorption equilibria. In all these cases the adsorption equilibria show a dependence on applied potential in electrolyte of approximately 1m ionic strength. With electrosorption from aqueous solution, a fivefold enhancement of the concentration in one potential controlled adsorption/desorption cycle is achievable. The use of the solvent methanol instead of water for desorption allows for a concentration enhancement by a factor of hundred in the desorptive step. The adsorption capacity of the activated carbon changes only slightly with cycle number. Two cell designs for the performance of potential controlled adsorption/desorption cycles on the large scale are discussed. 相似文献