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Guo H.,University Of Science And Technology Liaoning | Jin Y.-L.,University Of Science And Technology Liaoning | Jin Y.-L.,Tangshan Iron and Steel Co. | He Z.-J.,University Of Science And Technology Liaoning | Ye J.-D.,Beijing Association of Sustainable Development
Kang T'ieh/Iron and Steel | Year: 2012

In order to probe anticlogging effect of ultrasonication for circulation water of blast furnace, the effect of ultrasonic frequency, powder and velocity of circulating water on Ca 2+ concentration was investigated using the orthogonal method. The results show that the primary factor is ultrasonic frequency; the secondary factor is velocity of circulating water and the last one is ultrasonic powder. Under the condition of ultrasonic frequency of 30 kHz, velocity of circulating water of 0.6 m/s and ultrasonic power of 400 W, the best anticlogging effect can be obtained (the contact area between energy converter and circulating water pipe is 100 W/cm 2). For example, the Ca 2+ concentration can reach 84.2 mg/L after 8 hours. The regression function of electric conductivity to time under ultrasonication is obtained. The energy consumption is 3.571 kW·h in 8 hours test and the efficiency is 89.6%. Source


Li B.,Renmin University of China | Zeng F.,Renmin University of China | Ma W.,Beijing Association of Sustainable Development | Dong Q.,Renmin University of China | And 2 more authors.
Applied Mechanics and Materials | Year: 2012

The 10 organophosphorus pesticides in fish can be rapidly extracted and separated by gel permeation chromatography, and the lipin and organophosphorus pesticides of fish can be seperated. The interfering matters can be well eliminated in this condition, and analysis is more rapid than other methods. The residues of 10 organophosphorus pesticides at same time can be identified and quantified simultaneously by GC-PFPD. This method is simple, rapid, and the average recovery ratios were 71.7%-80.9%.Good repeatability was obtained in all the cases with relative standard deviations (RSDs) lower 11%, and limit of detection was0.0003-0.004 mg·kg-1. Source


Zeng Y.,Minzu University of China | Li B.,Renmin University of China | Ma W.,Beijing Association of Sustainable Development | Zhou K.,Renmin University of China | And 2 more authors.
Procedia Environmental Sciences | Year: 2011

Environmental hormone mainly cause harm to the reproductive function of human being and animal kingdom, which is a serious threat to human and animal survival or reproduction. This paper blacklisted 70 kinds of environmental hormones, studied pollution situation of some environmental hormone (which are remaining in the atmosphere, water, sediment, soil, seafood and human tissue) in Chinese Environment and population, and outlined the environmental hormone pollution hazards. Therefore, China should strengthen basic research in environmental hormone pollution, strengthen the environmental management and the publicity of environmental law to curb environmental hormone pollution. In addition, some legislative measures should be proposed, laws and regulations of environmental hormones should be formulated, and the law enforcement should be strengthen to control environmental hormones. © 2011 Published by Elsevier Ltd. Source


He Z.,University Of Science And Technology Liaoning | Guo H.,Beijing Association of Sustainable Development
Metalurgia International | Year: 2012

This paper focused on the ultrasonication treatment on blast furnace circulating water, which adopting the orthogonal method to research the variation of Ca2+ concentration in different ultrasonic frequency, power and velocity of circulating water. The results indicated the primary sequence is ultrasonic frequency, velocity of circulating water and ultrasonic power, the best combination is ultrasonic frequency: 30kHz, velocity of circulating water: 0.6m/s, and ultrasonic power:400W(100W/cm2). Analysis the relation between ultrasonic frequency, ultrasonic power and time under ultrasonication, the Ca2+ concentration is 84.2 mg/L when the ultrasonic frequency 30kHz, velocity of circulating water 0.6m/s and ultrasonic power 400W, the effect of anti-scaling is obviously. The regression function of electric conductivity to time under ultrasonication is: Y=-250.1lnx+1352.6, R2=0.9877. When ultrasonic power at 400W, the energy consumption is 3.571kW/h, and the test time is 8 hours, the efficiency is 89.6%. Source


Li B.,Renmin University of China | Zeng F.,Renmin University of China | Ma W.,Beijing Association of Sustainable Development | Dong Q.,Renmin University of China | And 2 more authors.
Procedia Environmental Sciences | Year: 2011

A profile of the soil samples around a typical crude oil sludge storage site of Jianghan Oil Field of China were collected and analyzed. We used the UE-GC/FID method to analyze qualitatively and quantitatively the 16 kinds of PAHs which were controlled priory by the U.S.EPA. The results showed that the study area was polluted severely by PAHs. The main pollutants were naphthalene, acenaphthylene, fluorene, phenathrene, chrysene, benzo(b) fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno (1,2,3,-cd) pyrene,dibenzo (a,h) anthracene, benzo (g,h,i) perylene, while the amount of acenaphthene, fluoranthene, pyrene and benzo (a) anthracene was relatively low. The peak values of PAHs in the profiles appeared in the range of 30-40 cm, was 1899 ng g-1. The ability of different PAHs components to transport downward changed in the profile, which was characterized as 2 rings PAHs>3 rings PAHs>4 rings PAHs>5 rings PAHs>6 rings PAHs. © 2011 Published by Elsevier Ltd. Source

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