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Li X.,Ocean University of China | Li Z.,Ocean University of China | Li C.,Ocean University of China | Wang L.,Ocean University of China | And 4 more authors.
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)

Fex 3+-TiO2/Shell photocatalysts with Fe3+-doped TiO2 film supporting on the regular structured seashell-based adsorbent were successfully synthesized by wet-impregnation-calcination method, and characterized by XRD, SEM-EDS and UV-Vis techniques. The effects of Fe3+ doped amount(x), coated times of Fex 3+-TiO2 and illumination time on photocatalytic activity of Fex 3+-TiO2/Shell for oil degradation were investigated. The results showed that the Fe0.7 3+-TiO2/shell with four coated times of Fe0.7 3+-TiO2 possessed the highest photocatalytic activity for oil degradation. After 16 h illumination with 300 W iodine-tungsten lamp, the oil degradation rate on the seawater reached 76%. Source

Wei L.-L.,Harbin Institute of Technology | Wang G.-Z.,Harbin Institute of Technology | Jiang J.-Q.,Harbin Institute of Technology | Li G.,Chongqing University | And 4 more authors.
Desalination and Water Treatment

Excessive nitrogen and phosphorus discharge into natural water from wastewater treatment plants still have the potential of causing eutrophication. How to remove those excessive nitrogen and phosphorus in an appropriate way is welcome in practice. This study co-removed nitrate and phosphorus via the operation of commercial 201 × 7 exchange resin column, and recovered phosphate simultaneously. Experimental results demonstrated that the adsorption of (Formula presented.)-P onto the 201 × 7 resin satisfactorily fitted to Freundlich isotherm, while (Formula presented.)-N followed Langmuir model, with a maximum adsorption capacity of 12.47 mg/g for (Formula presented.)-P and 107.59 mg/g for (Formula presented.)-N, respectively. Up to 92% of (Formula presented.)-P and 90% of (Formula presented.)-N in the secondary effluent were recovered by 201 × 7 resin column under the optimal flow rate of 50 BV/h. The exhausted 201 × 7 resin could be regenerated by 5% NaCl within 1 h at a flow rate of 15 BV/h. Moreover, this regeneration would guarantee the effluent (Formula presented.)-P and (Formula presented.)-N are lower than the breakthrough points even when 1175 BV wastewater passed the resin column. These findings are of great significance for ensuring stricter effluent phosphorus and total nitrogen discharge criteria. © 2014 © 2014 Balaban Desalination Publications. All rights reserved. Source

Wang L.,Ocean University of China | Gao J.,Sunrui Marine Environment Engineering Co. | Li C.-H.,Ocean University of China | Feng L.-J.,Ocean University of China | Yang J.-J.,Ocean University of China
Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology

CuO/SC catalysts were prepared by incipient wetness impregnation and characterized by BET, XRD and SEM. Their performance for NO oxidation was tested in a fixed bed reactor. The influence of CuO content, reaction temperature, space velocity, concentration of O2 and H2O on NO catalytic oxidation activity were investigated. The results show that CuO/SC with 1% CuO loading had the highest activity at 70 ℃, 5% of O2 and 1 000 h-1 of GHSV. In addition, the poisonous effect of water vapor on catalytic oxidation activity was also analyzed. When water vapor was introduced into the feed gas, breakthrough time is reduced from 15 h to 9.5 h. ©, 2014, Science Press. All right reserved. Source

Wang Z.,Qingdao University | Xia L.,Qingdao University | Xia J.,Qingdao University | An Z.,Sunrui Marine Environment Engineering Co. | Gong S.,Qingdao University
RSC Advances

A hybrid anode integrating enzymatic hydrolysis of starch by glucoamylase and non-enzymatic oxidation of glucose by gold nanoparticles is presented to achieve an efficient cascade energy conversion from starch. The as-prepared biofuel cell shows a maximum power output of 91.4 μW cm-2. This enzymatic/non-enzymatic hybrid strategy can be employed to develop other polysaccharide or oligosaccharide fuel cells in which glucose oxidation is involved. © 2016 The Royal Society of Chemistry. Source

SunRui Marine Environment Engineering Co. | Date: 2014-08-25

Apparatus for disinfecting water; Aquarium filtration apparatus; Combination ozone sanitizer and electric deodorizing units; Ionization apparatus for the treatment of air; Purification installations for sewage; Sewage disposal plants; Sterilizers; Swimming pool chlorinating units; Water desalination plants; Water ionizers; Water purification installations; Water purification machines; Water sterilizers.

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