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1.
WANG Liang WANG Lei LI Feng-ting LIU Hua 《重庆大学学报(英文版)》2007,6(4):238-241
A mixed bacterial flora was isolated from the soil of two petroleum-contaminated sites, then cultivated and domesticated in an open environment. The bacteria were used to degrade engine oil in wastewater. The optimum biodegradation conditions for all engine oil concentrations of respectively 489 mg L-1, 1 075 mg L-1 and 2 088 mg L-1 are bacterial inoculum concentration of 0.1%, temperature at 30 °C to 35 °C, pH 7.0 to 7.5, and rotation at 190 r min-1 to 240 r min-1. The second-order kinetic model proposed by Quiroga and Sales describes the characteristics of the biodegradation of the engine oil very well. Engine oil concentration barely changes the growth rate of the bacterial consortium. The mixed bacterial flora has a high biodegrading capability for engine oil. 相似文献
2.
澳大利亚人常把“day”说成“die”;不少新西兰人把“sit”说得更像“set”;德国人讲three[θri:]时听起来就像在说tree[tri:];日本人说“right”总容易被误解成“light”;东南亚的人更是将god和got读得让人混淆不清。鉴于此,在去年“世界语言:英语面临的危机和机遇”会议上,不少英国语言学家不免感叹,世界上已出现了很多种英语了。 相似文献
3.
Personal Review： Progress and prospect in electro-Fenton process for wastewater treatment 总被引：2，自引：0，他引：2
JIANG Cheng-chun ZHANG Jia-fa 《浙江大学学报(A卷英文版)》2007,8(7):1118-1125
As a novel advanced oxidation process (AOP), electro-Fenton process is powerful for degrading most organic compounds including toxic and non-biodegradable ones, and so has attracted great attention. This paper reviews this process in detail including the mechanism, electrolytic bath, electrode materials, aerations and operation parameters. The application of electro-Fenton method in wastewater treatment is evaluated and summarized. Future work in this field is suggested, and three main directions of new electrode exploitation, development of assisted technologies and mechanistic study should be strengthened. 相似文献
4.
INTRODUCTION Coking wastewater is generated in the produc- tion of coke, coal gas, tar and other coke by-products The coking wastewater includes inorganic pollutants such as ammonia, cyanogen, sulfocyan, heterocycle compounds and polycyclic aromatic compounds such as phenol, oils, naphthalene, pyridine, quinoline and anthracites, which are difficult to biodegradation under aerobic conditions (Ganczarczyk, 1972). Dis- charge of coking wastewater to the environment may cause severe contamin… 相似文献
5.
教学内容：BookI Lesson11 Numbers
教学目标：1．通过这节课的教学,学生能用英语熟练地说出数字one、two、three,four、five. 相似文献
6.
Development of an evaporation crystallizer for desalination of alkaline organic wastewater before incineration 总被引：2，自引：0，他引：2
A wastewater evaporation-desalination pretreatment method was introduced to remove the Na^＋ and K^＋ salts in volatile organic compounds （VOCs） wastewater before it was fed into the incinerator. VOCs in the wastewater were volatilized in the evaporation system and then the vapor was combusted in an incinerator. Simulated phenol wastewater containing sodium chloride was evaporated and concentrated and sodium chloride was crystallized in different parameters. The experimental results showed that the higher initial concentration of sodium chloride increases the ratio of volatilization of VOCs, which was due to the effect of “salting out” （a decrease in the solubility of the nonelectrolyte in the solution, or more rigorously, an increase in its activity coefficient, caused by the salt addition （Furter and Cook, 1967））. When evaporation speed was increased from 1.67 ml/min to 2.73 ml/min, the total removal coefficient of sodium chloride was about 99.88%-99.99%. This pretreatment procedure eliminates the slag phenomenon caused by Na^＋ and K^＋ salts during wastewater incineration, so the incinerator could operate continuously, and the wastewater evaporation could increase the heat value of wastewater, and the operation cost would be reduced. 相似文献
7.
Chinese and western cultures,due to various complicated factors,differ from each other greatly.In the essay,the differ ences are examined from three perspectives:religion,legend and literature,the three important branches of culture,which would show the essence of the differences between the two cultures. 相似文献
8.
田枫 《中学数学教学参考》2006,(1):119-119
Bob, Fred, and Vi play a game in which a card numbered 2,3,4,5,6,7,or 8 is stuck to each of their foreheads. Each player can see the other two players＇ numbers but not his or her own. An observ er tells the three players that the three numbers are not all different and that their product is a perfect square（安全平方数）, how many of them can deduce the number on their foreheads？ 相似文献
9.
There is always a saying“Never too old to learn”.For Englishlanguage learning,it is almost the same rules for it.There are three mainfactors for language learning:teacher,teaching objective and textbook.Textbook plays most important part among the three factors.Only with the help of text book can a good teacher bring out anexcellent student,for the reason that it is very hard for teacher todevelop his own teaching material.It is also a waste of time and money.Furthermore,it will bring extr… 相似文献
10.
ZHouShaomin 《零陵学院学报》1996,(Z1)
1．INTRODUIONExCeSSVOlumathetemPer。298．15Kfor[aCetotUtheorPrOPIOrlltrile＋benzeneorstmplhavngbeenpubished,(’)itseellmlnteaningtoextendourstud。oacrylonitrile＋anaxOInaichydrocarforl二nthiswcyitsdetoanly8Ehowtheintrcol．－x－boOfadoublbondinopoPoP儿m止rleafeafec枯theexcessVOVOunes．Intheswrk,WehaymeasIJredexcaVoumesattheperature298．15Kfor[acrylo。－tri卜＋e。。or*。orOxyl。orm－xyleneorp—xyleneorethybe。。orStytene]．oastocomParethenwithtttoeeof[aCeoitileileorpmpitrile＋ana… 相似文献
11.
赵博 《中学英语之友(初二版)》2007,(9)
1.at,in,on表年、月、日、时、分(1)表示钟点用at。如:1)We're going to have a party at three tomorrow afternoon.我们明天下午三点钟举行聚会。2)Can you be here at a quarter to eight? 相似文献
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14.
《世界儿童(小学生阅读版)》2002,(11)
1 2=?一加二等于几?One and two is three.一加二等于三。Three,three,three.三、三、三,Plant a small tree,种植一棵小树,Birds can fly free.让鸟儿自由地飞。 相似文献
15.
1. If three cats can kill three rats in three minutes, how long will it take 100 cats to kill 100 rats?2. A little American and a big American were in a car. The little American was the big American's son, but the big American was not the little American's father. who was it? 相似文献
16.
铜络合电镀废水的石灰—次氯酸钠氧化处理工艺初探 总被引：1，自引：0，他引：1
王伟洲 《晋城职业技术学院学报》2010,3(6):47-49
采用次氯酸钠络合解离—碱性沉淀法对含柠檬酸络合铜离子废水进行处理,考察了pH、次氯酸钠用量、以及反应时间对该方法处理络合铜离子废水结果的影响。结果表明,在体系pH=13,次氯酸钠溶液用量达到4%,反应时间120min的条件下废水中的铜离子可下降到0.2mg.L-1左右,低于国家工业废水排放标准。 相似文献
17.
The Sagrada Familia 圣家族大教堂
The Sagrada Familia is one of Barcelona's most famous and important landmarks. It has three facades and each one has a different meaning. 相似文献
18.
李建高 《中学英语园地(高三版)》2003,(4)
1.I think that TV play is worth__. A.to watch B.looking C.to look D.watching [分析]该题考查形容词worth的用法。形容词worth后面要跟及物动词的-ing的主动形式,这样,可排除A,B,C三项,答案为D。2.We__ learned about__ English words by the end of last term. A.have,three hundred B.had,three hundred C.have,three hundreds D.had,three hundreds 相似文献
19.
This past summer several teachers attended a"Sum- mer Training Program"during which we covered three books:"Educator's English,"Summer Training Program Supplement",and"Student Handbook." 相似文献
20.
HE Qiang ZHANG Yu-ping XU Jian-bin 《重庆大学学报(英文版)》2005,4(4):208-212
In this paper, the characteristics of integrated biological aerated filter （IBAF） applied to municipal wastewater treatment were studied in a pilot scale experiment. The experimental results showed that IBAF has high efficiencies in removing organic pollutants, such as CODCr and SS, in municipal wastewater. The removal rates of CODCr and SS can reach over 90% and 80%, respectively, when COD and SS in the influent are 234 mg L^-1 and 112 mg L^-1, hydraulic retention time （HRT） is 8 h, and the aerated intensity is in the range of （0.5 to 0.6） L m^-2 s^-1. 相似文献