气水

• The height of media 、 the ratio of gas to liquid 、 hydraulic loading 、 the organic and ammonia loading of influent are the key factors influence the performance of one - stage aerobic baf . the conclusions of the experiment are as following : the best height to remove the organic matter and ammonia is at 60cm 、 120cm from the influent side respectively . the best ratio of gas to liquid is 3 : 1 4 : 1 ; the organic and ammonia loading of influent have litlle influence on the performance of one - stage aerobic baf when the concentration are low ; whe the ratio of gas to liquid is 3 : 1 , the ammonia loading is blow 0 . 87kgnh _ 4 ~ + - n / m ~ 3 . d , the enfluent concentration of ammonia is blow 5mg / l which satisfies the water reuse standard ; at different organic loadings , the removal of organic matter keeps 35 % 45 % . hypothermia is unfavourable to nitrification for one - stage aerobic baf to removel ammonia , the influent concentration of ammonia can ’ t satisfy the water reuse standard
  试验表明:对有机物的去除主要发生在进水端60cm内,对氨氮的去除主要发生在进水端120cm内;曝气生物滤池运行的最佳气水比为3 : 1 4 : 1 ;在进水有机物和氨氮浓度比较小时,水力负荷对其去除率影响不大;在气水比为3 : 1 ,进水氨氮负荷小于0 . 87kgnh4 + - n / m3 (滤料) ? d时,出水氨氮小于5mg / l ,满足回用水的要求;在不同有机负荷下,有机物去除率保持在35 % 45 % 。
• Based on advanced technology , this thesis bring forward the optimal scheme and set down general system - drawings and flow charts . using step7 - micro software , we achieve the auto - control aim in drinking water treatment . in practice , the complexity and non - linaerity exit in the system of water treatment , so we apply fuzzy control in water treatment and design a kind of controller which structure can be altered according to the using - rate of ozone and the variety of water quality
  实际饮用水处理系统由于存在复杂性、非线性、时变性，本文根据臭氧生物活性炭水处理工艺存在复杂性、非线性、时变性等特点，将模糊控制应用在水处理这一不确定的非线性时变系统，针对不同水温下臭氧利用率及水质的变化，设计一种基于系统过程状态的变结构的模糊控制器，以单片机作为主要控制硬件，按查表方式设计软件，对进水阀门开度进行在线控制，调节臭氧气体与进水的比例(臭氧流量及浓度不变) ，达到气水比最优化。
• As backwash is the key of renewing and keeping up the function of filter , so some factor optimization experiments of backwash have been done . the optimum operating parameters of air scour and water backwash of ceramics media are chosen by multiple factors experiments : qa = 15 l / s ? m2 , qw = 5 l / s ? m2 , t1 = 1min , t2 = 5min , t3 = 5min
  经多组实验正交分析结果后得出了涂铁陶粒滤池反冲洗实验的最佳参数组合：气冲强度15l / s ? m2 ，水洗强度5l / s ? m2 ，单气预冲1min ，气水同时反冲洗5min ，单水漂洗5min 。
• Putting the potassium permanganate into the filter can improve its effect , the removal of organics and ammonia is increased , the influent concentration can satisfy the water reuse standard . but the turbidity of influent is unsatisfactory . the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed . the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2 , hydraulic loading is 2 . 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1 . the influent concentration of organics is blow 7mg / l . from the beginning to 30cm of the anoxic filter , the removal of the organics is significant ; as the c / n ratio increasing , the influent concentration of ammonia is decreasing . when the c / n ratio is 3 . 60 , the enfluent concentration of ammonia is 3 . 05mg / l which satisfies the water reuse standard . when the c / n ration is less than 3 . 60 , because of the imperfection
  回流比为2 : 1 ,水力负荷为2 . 55m3 / m2 ? h ,好氧柱气水比为3 : 1时试验表明:不同的c / n ( 1 . 05 7 . 45 )下,两级曝气生物滤池对有机物有很好的去除作用,出水有机物浓度小于7mg / l ,其中在缺氧柱进水端30cm内对有机物的去除最为明显;随着c / n的增加,系统出水氨氮浓度降低,当c / n为3 . 60时,出水氨氮浓度降到3 . 05mg / l ,已经满足回用水的氨氮标准; c / n < 3 . 60时,因为缺氧柱的不完全反硝化,体系中硝酸盐氮和亚硝酸盐氮发生积累影响了好氧柱的硝化反应使氨氮降解效果较差;系统对总氮的去除随着c / n的增加而增加,当c / n为3 . 60时,出水总氮已经降到11 . 18mg / l ,满足回用水的要求。
• Considering the water spraying can effectively increase the contact area between gas and water and promote the hydrate production rate , a batch reactor with water spraying was built in order to experimentally investigate the forming performance of natural gas hydrate , the system ' s state parameters ' variation and its effect on induced time of initial pressure and water temperature
  摘要考虑到水的雾化可以有效提高气水接触面积，有助于提高水合物生产速率，设计和建造了一个半间歇式雾流强化水合物实验装置，用于探索和揭示喷雾强化天然气水合物制备过程的基本特性，包括制备水合物的形态特征，形成过程中参数的变化规律，以及系统初始压力和初始水温度对形成过程诱导时间的影响。
• With the tectonic uplift of the source area and the climate turning dry , the coal forming period was over , the fluvial system and fluvial - delta system became to play a major role . based on the study of former researchers and the theory of deep basin gas reservoir forming , the deep basin gas trap in the ordos basin is analyzed and is supposed to form in the ramp of the basin . it is supposed that the hydrocarbon of the deep basin gas trap is mainly composed of coal , carbonate and carbonaceous shale and with the " upper water seal " in the north of the study area the g
  根据深盆气成藏理论和前人的研究成果，分析了深盆气藏的分布类型，认为鄂尔多斯盆地深盆气藏属于盆地斜坡成藏类型；认为深盆气的源岩以煤、炭质泥岩、暗色泥岩和碳酸盐岩为主；北部气水倒置、东部露头区有天然气逸出；气藏具有多重压力系统；成藏机理主要是气体动态的运移与聚集，稳定的构造背景有利于气藏的大面积保存。
• The economic success of jiangmen huoli group co . , ltd . is coined / shaped by products and service services such as boiler , heater , heater in addition to heater , homepage and water heater . one can even receive offers on boiler , stove , smoke and boiler as well as on gas water heater with jiangmen huoli group co . , ltd . in outstanding quality
  不仅在以主页、锅炉、汽锅、蒸馏锅、釜、水槽、容器和加热体以及重沸器、加热气和加热器领域内著称，而且以其它产品驰名，如地坑、炉床、烟、烟气和水加热器、气水供热装置以及发热器。