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双语推荐:洗涤法

综述了船舶废气洗涤脱硫设备的研究现状,通过阐述海水、碱液、改性海水的优缺点,指出海水联合碱液的混合系统最具经济性和广泛适用性。列举了国际上几大主要厂商设计的洗涤塔,对比研究了各洗涤塔的参数及其结构特点,最后介绍了洗涤残液的排放标准及其处理方式。通过分析船舶废气中多种污染物联合脱除的研究现状,提出设计出高效、廉价的NOx氧化装置以及提高湿对于超细颗粒物的捕集能力将是研究的重点和难点,采用湿联合脱除SOx、NOx和PM是今后船舶废气洗涤净化设备重要的研究方向。
This paper reviewed the research progresses of ship exhaust gas cleaning desulfurization equipment. Advantages and disadvantages of seawater treatment,alkali liquor and modified method of seawater were introduced. The hybrid system combining seawater with alkali liquor is more efficient economically and has a wide applicability range. Products from major manufacturers were discussed, focusing on the parameters and structures of the scrubbers. Effluent standards and its treatment were also introduced. The analysis of the research status of simultaneous removal of various pollutions from ship exhaust indicated that design efficiency,cost effective NOx oxidation device,and improvement of the ultrafine particle capture ability of wet process,are important factors. Simultaneous removal of SOx,NOx and PM by wet process could be the research direction of ship exhaust cleaning equipment in the future.

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目的:检测体外构建的组织工程骨中的牛血清白蛋白(Bovine serum albumin,BSA)残余量,并探讨减少残余量的方。方体外分离培养hBMSCs,将第2代细胞消化、离心、洗涤3次,获取细胞洗涤液样品。取第2代hBMSCs接种于β-TCP支架材料,体外成骨诱导2周,构建组织工程骨。生理盐水浸洗3次,获取洗涤液样品。然后加入PBS,37℃振荡浸提24 h,获取浸提液样品。同获取未接种细胞的单纯支架材料的浸提液样品作为对照。采用酶联免疫检测洗涤液与组织工程骨样品浸提液中BSA的残余量,观察洗涤次数与洗涤液中BSA含量的变化关系。结果随洗涤次数增多,洗涤液与浸提液中的BSA含量明显降低。酶联免疫测定的组织工程骨与单纯支架材料浸提液中BSA残余量分别为(19.54±6.70) ng和(15.67±5.49) ng,单位重量的残余量分别为(0.656±0.213) ng/mg和(0.796±0.205) ng/mg,两组无显著差异(P>0.05)。结论酶联免疫适用于组织工程骨中BSA残余量的检测。因为支架材料较细胞更易吸附BSA,现有条件下构建的组织工程骨BSA残余量仍然较高,需要进一步探索降低残余量的方
Objective To detect the residual bovine serum albumin (BSA) in tissue engineered bone constructed conventionally in vitro byβ-TCP and to investigate new methods to reduce it. Methods Human bone marrow mesenchymal stem cells (BMSCs) were isolated and cultured in vitro. BMSCs of passage 2 were digested, after centrifugation and washing, the washing liquid of the cells was obtained. And BMSCs of passage 2 were inoculated in β-TCP scaffolds and induced osteogenesis in vitro for 2 weeks to construct tissue engineered bone. The tissue engineered bone was rinsed in saline for three times, put in PBS buffer and extracted for 24 hours at 37 ℃ to obtain the extracted liquor. The extracted liquor of scaffold without cells inoculated simultaneously was served as the control. Residual BSA content in the extracted liquor and the washing liquid samples were detected by ELISA, and the change relationship of BSA content with times of washing was observed. Results BSA content in the dilutio

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研究了采用水洗和还原浸出从锌电积阳极泥中提取锌和锰,考察了洗涤温度、洗涤时间、洗涤方式及还原浸出时间、浸出温度、pH等对锌、锰回收率的影响。试验结果表明:洗锌过程中,温度对洗锌率影响较大;在液固体积质量比3∶1、温度80℃条件下,通过逆流洗涤,洗锌率达97%以上,渣中锌质量分数在0.07%~0.09%之间。用SO2作还原剂浸出锰,pH和SO2气体流量对锰浸出率影响不明显;60℃下,锰浸出率在99%以上。通过水洗和还原浸出,锌电积阳极泥中的锌和锰得到有效回收,且流程简单。
Washing of zinc and reduction leaching of manganese from zinc-electrowinning anode mud was investagated .The washing temperature ,washing time ,washing way and leaching time ,leaching temperature ,pH and other parameters on recovery of zinc and manganese are examined .The results show that in washing zinc process ,washing temperature affects obviously washing zinc rate .Under the conditions of the ratio between liquid volume and solid mass of 3∶1 ,the washing zinc rate is 97% .In leaching manganese process using SO2 as reducing agent ,effecting of pH and SO2 gas flow rate on the leaching rate of manganese is not obvious .Under the condition of leaching temperature of 60℃ , manganese leaching rate reaches 99% .T he experimental results demonstrate that it is effective to recovery zinc and manganese from zinc-electrowinning anode mud by washing and reduction leaching process .

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简要综述了HFC-134a生产过程中氟化氢的回收利用方。分别介绍了吸附、硫酸洗涤法、氢氟酸洗涤法等氟化氢直接回收利用工艺和氟化氢经过水吸收后制成氢氟酸后制取氟化钙、氟化镁、氟硅酸钾等衍生物盐类实现对氟化氢的再利用方。HFC-134a生产过程中浪费的氟化氢得到有效地回收和利用,对氟资源的综合利用和环境保护具有积极意义。
Recycling method of hydrogen fluoride for the production of HFC-134a was reviewed.Directly recycling, such as adsorption, hydrofluoric acid washing, sulfuric acid washing, and the use of derivatives, for example to produce calcium fluoride, magnesium fluoride, and potassium fluorosilicate were introduced, which provided important reference to the comprehensive utilization of fluoride resource and environment protection.

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目的:研究ACP-215全自动红细胞处理仪制备红细胞制品的可靠性。方:将研究对象分成两组,对照组采用手工开放式洗涤法制备,试验组采用ACP-215全自动红细胞处理仪制备。解冻去甘油红细胞和洗涤红细胞按照相关标准,分别对实验组和对照组红细胞回收率、游离血红蛋白、甘油含量、残留白细胞、体外溶血试验和细菌培养进行检测分析。结果:对于解冻去甘油红细胞,实验组在红细胞回收率、残留白细胞、甘油含量、体外溶血和细菌培养均好于对照组;对于洗涤红细胞,实验组在红细胞回收率、残留白细胞量和上清液蛋白含量方面优于对照组。结论:用ACP-215全自动红细胞处理仪制备红细胞制品,比手工洗涤法更安全可靠,尤其在解冻去甘油红细胞方面,体现的更明显。该仪器有实际应用价值,值得推广。
Objective:To study the reliability of preparing red cell products by ACP-215 automatic red cell treatment instrument. Methods:The subjects were divided into two groups, the control group using manual open washing preparation, the experiment group adopted the ACP-215 automated red cell treatment instrument preparation. Deglycerin erythrocyte and washed red blood cells in accordance with the relevant standards, recovery rate of RBC, hemoglobin, glycerol content, cultivation of residual white blood cells, in vitro hemolysis test and bacteria cultivation were detected and analyzed in the experimental group and the control group. Results:To deglycerin erythrocyte, the experimental group in the recovery rate of RBC, WBC, cultivation of residual glycerol content, in vitro hemolysis and bacteria cultivation was better than the control group;for the washed red blood cells, the experimental group in the recovery rate of RBC, residual white blood cells and supernatant protein content was better t
尿素造粒塔尾气经过喷淋洗涤后,尿素粉尘含量的测定通常采用滤膜质量测尘和光电直读测尘。分析了滤膜质量测尘和光电直读测尘测定结果不准确的原因;探讨了造粒塔尾气洗涤前后样品发生的变化对测定准确性的影响;提出了采用化学测定的方案。结果表明,化学测定更适合于尿素造粒塔排放尾气中尿素含量的测定。
After the tail gas from urea prilling tower was scrubbed through spraying, the filtering membrane mass dust measuring method and the photo-electricity reading dust measuring method were usually used in measure of urea dust content.Author has analyzed the inaccurate reason for measured re-sults by filter membrane mass dust measuring method and photo -electricity dust measure reading method; has discussed the influence of the variation of ex-amples before /after scrubbing for tail gas from prilling tower on the measuring of accuracy ; has supposed the scheme to adopt chemical measure method. Result indicates that chemical measure method is more suitable for measuring urea content in tail gas discharged from urea prilling tower .
概述了氨酸料床直接反应工艺的特点,并提出其后续优化措施,即将浓硫酸的稀释热用于液氨的汽化或将部分原料加热熔融生成料浆,采用两段湿法洗涤的手段对造粒尾气、干燥尾气和冷却尾气进行综合治理。采用上述改进措施后,能进一步提高热量的利用水平,明显提高了尾气的净化效果,实现洗涤液零排放。
By outlining characteristics of material bed direct reaction of acid ammoniation process, optimization of follow-up measures, such as using dilution heat of concentrated sulfuric acid for liquid ammonia gasification or part of materials melting , adopting two-stage wet process to handle granulation tail gas , drying tail gas and cooling tail gas in an integrated manner are provided .By using the above-mentioned measures , heat utilization efficiency and purification of exhaust gas are both greatly improved and the goal of zero discharge of detergent can be realized .

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本试验旨在研究7种不同微生物菌株及其组合处理玉米秸秆的效果。选取单菌株(黄孢原毛平革菌、青霉菌)、2菌株(黄孢原毛平革菌+黑曲霉菌、黄孢原毛平革菌+绿色木霉菌)、3菌株(黄孢原毛平革菌+黑曲霉菌+青霉菌、黄孢原毛平革菌+黑曲霉菌+绿色木霉菌)和4菌株(黄孢原毛平革菌+黑曲霉菌+绿色木霉菌+青霉菌)共计7个组合处理玉米秸秆,并设置对照组。利用6只装有瘤胃瘘管的杜×寒F1代杂交羯羊,采用半体内分别对玉米秸秆的干物质、有机物、中性洗涤纤维、酸性洗涤纤维、酸性洗涤木质素、纤维素和半纤维素在0、6、12、24、48、72 h的动态降解率进行测定与分析。结果表明:玉米秸秆经微生物菌株处理,其中性洗涤纤维、酸性洗涤纤维、酸性洗涤木质素、纤维素、半纤维素、粗蛋白质的有效降解率显著高于对照组(P0.05),不同菌株及其组合的处理效果不一致。黄孢原毛平革菌+绿色木霉菌组合的效果优于其他菌株或组合。用合理的微生物组合处理玉米秸秆可以有效提高其利用率。
This experiment was aimed to study the effects of corn stalks treated with seven different microbes and their combinations. Corn stalks were fermented with 1 strain( Phanerochaete chrysosporium and Penicilli-um sp. ),2 strains( Phanerochaete chrysosporium+ Aspergillus niger and Phanerochaete chrysosporium+ Tri-choderma viride),3 strains( Phanerochaete chrysosporium+Aspergillus niger+Penicillium sp. and Phanero-chaete chrysosporium+Aspergillus niger+Trichoderma viride)or 4 strains( Phanerochaete chrysosporium+As-pergillus niger+Trichoderma viride+Penicillium sp. )of microorganisms( seven combinations in total),and six Dorper×Thin-tailed crossbred castrated sheep F1 were used. In situ method was applied to measure the dynamic rumen degradation rate of dry matter,organic matter,neutral detergent fiber,acid detergent fiber,acid deter-gent lignin,cellulose and hemicellulose at 0,6,12,24,48 and 72 h. The results showed that microbes im-proved the effective degradation rate of neut

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本试验旨在评定初花期多花黑麦草在生长肉兔上的营养价值。试验选取60日龄平均体重(2.20±0.32)kg的健康新西兰兔24只,随机分为2组,每组12个重复,每个重复1只。试验饲粮采用套算进行配制,多花黑麦草的替代比例为20%;试验采用全收粪进行消化试验,预试期和正试期各7 d。结果表明:1)多花黑麦草中总能、干物质、粗蛋白、粗脂肪、粗纤维、中性洗涤纤维、酸性洗涤纤维、粗灰分、钙、总磷和无氮浸出物含量分别为16.78 MJ/kg、92.24%、10.20%、1.64%、26.09%、51.80%、31.35%、7.72%、0.66%、0.28%和46.59%;2)多花黑麦草在生长肉兔中的表观消化能为7.21 MJ/kg,生长肉兔对多花黑麦草中总能、干物质、粗蛋白、粗脂肪、粗纤维、中性洗涤纤维、酸性洗涤纤维、粗灰分、钙、总磷和无氮浸出物的表观消化率分别为33.45%、48.36%、44.18%、84.45%、25.91%、22.73%、22.25%、26.10%、62.87%、13.94%和61.42%。由结果可知:初花期多花黑麦草中粗纤维、中性洗涤纤维、酸性洗涤纤维含量相对较高,总磷含量相对较低;生长肉兔对初花期多花黑麦草中不同营养成分的消化率存在一定差异,其中以粗脂肪、粗纤维、钙、无
The experiment was carried out to evaluate the nutritional value of early flowering Italian ryegrass for growing rabbits.A total of 24 New Zealand rabbits at 60 days of age with an average weight of (2.20±0.32) kg were used in a completely randomized design,which consisted of 2 groups and 12 replicates in each group.A basal diet was formulated to meet requirements of growing rabbits and the experiment diet was formulated by substituting 20%of the basal diet with Italian ryegrass.Fecal apparent digestibility of major nutrients in Italian ryegrass for growing rabbits was measured.Both pre-trial and trial period was 7 days.The results showed:1) Gross energy,dry matter,crude protein,ether extract,crude fiber,neutral detergent fiber,acid detergent fi-ber,crude ash,Ca,total P and nitrogen free extract contents of Italian ryegrass were 16.78 MJ/kg,92.24%, 10.20%,1.64%,26.09%,51.80%,31.35%,7.72%,0.66%,0.28% and 46.59%,respectively.2)The apparent digestible energy of Italian ryegrass

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利用自制的餐饮油烟洗涤净化装置,采用热脱附-气相色谱-质谱分析油烟的成分,结果显示丙烯醛、辛酮、辛醛为油烟主要污染物,其相对强度为100、51、50。分别用清水、活性污泥和活性污泥+木炭洗涤模拟餐饮油烟,试验结果表明,装置对油烟气有良好的去除效率,出口处质谱峰明显少于进口处,且色谱峰面积明显减小,达到较为理想的处理效果。在烟气流量为1.6m3/h,油加热温度为160℃,洗涤液量为20L条件下,每天运行9h,共运行22d,清水、活性污泥和活性污泥+木炭对油烟的平均去除率分别达到49.6%、66.2%和83.5%,表明活性污泥+木炭对油烟的洗涤效果最佳。这主要是因为活性污泥中微生物的降解作用和木炭的吸附作用对油烟污染物的去除起协同作用。
A combined equipment scrubbing cooking fumes was employed and thermal desorption and GC-MS were used to analyze the organic components in cooking fumes.The results showed that the main pollutants of cooking fumes were acrolein,octanone and octanal,and their relative intensity were 100,70 and 85,respectively.Simulated cooking fumes was washed by water,activated sludge and AC-activated sludge,and the results showed that the removed efficiency of the combined equipment scrub-bing cooking fumes was good.The mass spectrographic peaks at outlet was obviously less than inlet of the device,and the chromatographic peak area was clearly decreased.It was found that the device could remove most of the matter from the cooking fumes,and ideal effects were achieved.When the flow of cooking fumes was 1.6 m3/h,the temperature of waste oil heated was 1 60 ℃,the washing liquid volume was 20 L,the device runs 9 hours every day and runs for 22 days,the removal efficiency were 49.6%, 66.2% and 83

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