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preparation and application of a novel bioflocculant by two strains of rhizopus sp. using potato starch wastewater as nutrilite论文.pdf8页
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Bioresource Technology 162
1 Contents lists available at ScienceDirect Bioresource Technology journal
Preparation and application of a novel bio?occulant by two strains
of Rhizopus sp. using potato starch wastewater as nutrilite
Sheng-yan Pu a,c,?, Lan-lan Qin a,b, Jun-ping Che b, Bao-rong Zhang b, Mo Xu a,c
a State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, PR China
b College of Earth and Environmental Science, Lanzhou University, Lanzhou 730000, PR China
c Sichuan Environmental Protection Key Laboratory of Groundwater Antipollution and Resource Security, Chengdu 610059, PR China
s Novel complex bio?occulant. High ?occulation ef?ciency. Low cultivation cost.
Article history: A
bio?occulant
MBF917 was
Received 31 December 2013 wastewater
as nutrilite, and its ?occulation characteristics of treating PSW were studied. Culture
Received in revised form 21 March 2014 conditions of the two strains were optimized, and ?occulating conditions of the bio?occulant for treating
Accepted 23 March 2014 PSW were also investigated. The optimal and economical culture conditions were determined as COD of
Available online 29 March 2014 about
1600 mg/L,
dihydrogen
phosphate,
adding carbon sources or adjusting pH. When the bio?occulant was used to ?occulate PSW, the optimal dosage
Keywords: was 0.1 mL/L with addition of 5 mL/L 10% CaCl2
as coagulant aid, and there was no need to adjust pH.
Potato starch wastewater After
?occulation,
Complex bio?occulant
Cheap cultivation respectively, and 1.1 g/L proteic substa
正在加载中，请稍后...&&& &&& Do you think that French fries are really French?French fries are called "pommes frites" in France and they are not from France.French fries come from Belgium (比利时) originally.French fries are made of potatoes,and they are cut and fried.The fried potatoes are called French fries because they were fist seen by Americans in Belgium,but they were fried in the French way.The French way is to fry potatoes twice with a small pause in the middle.&&&& During World War I,there were a lot of hungry American soldiers in Northern France and Belgium.They ate French fries in Belgium.After the war was over,the soldiers went back home to America.However,they missed French fries so much that they made French fries at home.That's how French fries were fist introduced to America.&&&& French fries were called Belgian fries once,but the name was finally changed to French fries.Sometimes French fries are just called fries.&&&& French fries are one of the most popular potato foods in America.American fast food restaurants such as McDonald's and Burger King have French fries on their menus.French fries are freshly fried,and usually served with hamburgers.If you visit any fast food restaurant in America and order a hamburger,you will probably hear "You want fries with
" Why don't you think about the history of French fries a little while,and say "Yes,please.Thank you."
1.What are French fries made of?&&& ______________________________ 2.Where do French fries originally come from?&&& ______________________________ 3.Why are the fried potatoes called French fries?&&& ______________________________ 4.Who first introduced French fries to America?&&& ______________________________ 5.What does the underlined "that" in the last paragraph refer to?&&& ______________________________
1.potatoes 2.Belgium 3.Because they are fried in the French way.4.American soldiers.5.Hamburgers (答案不唯一)
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