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Jiang B.,Northeastern University China | Zhao Y.,Northeastern University China | Jin Y.,Northeastern University China | Hu X.,Northeastern University China | And 2 more authors.
Advanced Materials Research | Year: 2012

In study, Microwave Irradiation enhanced Fenton-Like Process was introduced as a novel technology in the treatment of Landfill Leachate containing refractory organic matters. The sample leachate with initial COD loading of 11434 ∼12067 mg L -1 was collected from the Laohuchong (Shenyang, China) City Landfill. Fenton (FeSO 4/H 2O 2) and Fenton-like (iron tailings/H 2O 2) reagents coupling with Microwave Irradiation were both studied. The Microwave Irradiation enhanced Fenton-Like Process was conducted under the optimal conditions as follows: 480W of microwave power, 3 min of radiation time, 3.0 of initial pH, 100mL L -1 of H 2O 2 and 2g L -1 of iron tailings. The removal rates of leachate samples with initial COD =11928 mg L -1 using 1.5g.L -1 FeSO 4 and 2.0g.L -1 iron tailings are 45.1% and 42.3% respectively on the condition of 320W MW radiated for 3 min at room temperature. The highest removal rate of the MW Fenton-Like Process is about 46% under the optimum conditions. It demonstrates the Fenton-Like reagent can be used as a substitution of Fenton reagent in Landfill Leachate applications which has extensive application prospect and extraordinary significance in aspects of resource utilization of waste materials and cost saving.

Li H.,Qingdao Agricultural University | Lang K.-L.,Qingdao Agricultural University | Fu H.-B.,Shenyang Entry Exit Inspection and Quarantine Bureau | Shen C.-P.,Qingdao Agricultural University | And 3 more authors.
Insect Science | Year: 2015

The cotton mealybug, Phenacoccus solenopsis Tinsley, is a serious and invasive pest. At present, genetic resources for studying P. solenopsis are limited, and this negatively affects genetic research on the organism and, consequently, translational work to improve management of this pest. In the present study, expressed sequence tags (ESTs) were analyzed from a normalized complementary DNA library of P. solenopsis. In addition, EST-derived microsatellite loci (also known as simple sequence repeats or SSRs) were isolated and characterized. A total of 1107 high-quality ESTs were acquired from the library. Clustering and assembly analysis resulted in 785 unigenes, which were classified functionally into 23 categories according to the Gene Ontology database. Seven EST-based SSR markers were developed in this study and are expected to be useful in characterizing how this invasive species was introduced, as well as providing insights into its genetic microevolution. © 2015 Institute of Zoology, Chinese Academy of Sciences.

Jiang B.H.,Northeastern University China | Jiang L.,Shenyang Entry Exit Inspection and Quarantine Bureau | Fu L.L.,Northeastern University China | Fu L.L.,Liaoning University | And 3 more authors.
Advanced Materials Research | Year: 2013

The distribution and accumulation of heavy metals in the planting base soils in Shenyang, northeast of China, were investigated. Sixty soil samples were collected and characterized for heavy metals contents (As, Cd, Cr, Pb, Hg, Ni, Cu and Zn). Concentration data were processed using correlation analysis and soils pollution assessment was carried out using geoaccumulation and PI. The results revealed that eight heavy metals contents of planting base all reached pollution level, which Pb and Hg pollution relatively serious, reached 2.41 and 2.1 respectively. The order of heavy metal pollution levels are: Pb> Hg> Zn = Cu> As> Ni> Cd> Cr. A significant correlation exists in Pb-Cd, Pb-Cu, Cd-As, Cu-Ni, while an extremely significant correlation exists between Zn-Cu. In addition to the parent material soil, the sources of soil heavy metals are mainly by the industrial, agricultural, transportation or other human activities and the effect of atmospheric transport and deposition. © (2013) Trans Tech Publications, Switzerland.

Zhang W.-M.,Liaoning Provincial Plant Protection Station | Fu H.-B.,Shenyang Entry Exit Inspection and Quarantine Bureau | Wang W.-H.,Liaoning Provincial Plant Protection Station | Piao C.-S.,Liaoning Provincial Plant Protection Station | And 3 more authors.
Journal of Economic Entomology | Year: 2014

In Liaoning Province, China, tomato yellow leaf curl virus (TYLCV) was first detected in 2009 and in only four counties. To quantify the spread of TYLCV and to identify potential factors influencing its spread in Liaoning Province, we assayed for TYLCV within 1,055 whiteflies (Bemisia tabaci (Gennadius) complex) from 74 populations and 29 counties in 2011. The B. tabaci species of these individuals was determined based on molecular markers. TYLCV was found in 13 counties (Donggang, Liaoyang, Kazuo, Lingyuan, Heishan, Liaozhong, Kaiyuan, Taian, Dawa, Dashiqiao, Beizhen, Linghai, and Xingcheng) and was most frequently detected in the central plain. In addition, the percentage of whiteflies with TYLCV was significantly higher in B. tabaci Q than in B. tabaci B but was unrelated to the hosts (pepper, eggplant, tomato, cucumber, and kidney bean) on which the whiteflies had been collected. These results demonstrate that TYLCV has spread rapidly in Liaoning Province since its first detection and suggest that its spread is more closely associated with the introduction of B. tabaci Q than with the species of host plant. These findings also indicate that controls are now needed to reduce the further spread of TYLCV and that these controls should include the management of B. tabaci Q populations. © 2014 Entomological Society of America.

Zhang M.,ShenYang Agricultural University | Li J.Y.,ShenYang Agricultural University | Fu H.B.,Shenyang Entry Exit Inspection and Quarantine Bureau
Applied Mechanics and Materials | Year: 2014

To study the saccharification conditions of cellulase on lignocellulose material, this paper used corn straw as the material to do research on the effect of cellulase. The hydrolysis factors, including reaction temperature, reaction time and cellulase concentration, were measured in order to determine the optimal saccharification conditions for fuel ethanol production. The results showed that, when the reaction temperature was 45°C, reaction time was 72 h and cellulase concentration was 60 IU/g, the hydrolysis rate can respectively reach 6.25%, 14.7% and 14.4%. By the analysis of orthogonal test, the main factors effects the saccharification was reaction time. And the optimal combination of saccharification conditions was the reaction time of 54 h, the reaction temperature of 45 °C, and the cellulase concentration of 55 IU/g. © (2014) Trans Tech Publications, Switzerland.

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