您的检索：
学者姓名：王志宏
精炼检索结果：
年份
成果类型
收录类型
来源
综合
合作者
语言
清除所有精炼条件
摘要 ：
In order to assess the feasibility of restoring sewage partial nitritation/anammox (PN/A) process using free nitrous acid (FNA) to treat flocculent sludge, the effect of different concentrations of FNA on the activities of ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) was studied. Besides, the variations of nutrient removal performance in the SBR reactor by twice FNA treatment were investigated. The results showed that NOB activity could be inhibited when the flocculent sludge treated by FNA of 0.45mgHNO2-N/L and the nitrite accumulation rate (NAR) reached 88.8%, but NOB activity recovered from the 8th day. While NOB activity could be significantly inhibited when the flocculent sludge treated by FNA of 1.35mgHNO2-N/L, and the NAR reached 89.1%. Meanwhile the activities of AOB was also inhibited, and NH4 +-N conversion rate decreased to 6.8%. By enhancing the ratio of aerobic time to anoxic time (t好/t缺: from 0.4~2.7) and increasing dissolved oxygen (DO: from 0.2~1.5mg/L), the AOB activity recovered, and NH4 +-N conversion rate reached 77.8%. But the activities of NOB was not recovered within 150days, and the NAR achieved 98.1%. With the stable achievement of nitritation, the nitrogen removal performance of the system gradually restored, the average effluent total inorganic nitrogen (TIN) was 8.2mg/L, and the average TIN efficiency was 84.1%. Therefore, the strategy by first treating flocculent sludge with higher FNA to inhibite both AOB and NOB, then increasing t好/t缺 and DO to restore AOB activity, could achieve the restoration of PN/A process. © 2019, Editorial Board of China Environmental Science. All right reserved.
关键词 ：
Free nitrous acid; Nitrite oxidizing bacteria; Partial nitritation/anammox; Restoration; Sewage Free nitrous acid; Nitrite oxidizing bacteria; Partial nitritation/anammox; Restoration; Sewage
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Wang, Z.-H. , Wang, B. , Gong, X.-F. et al. Restoration of nitritation of the sewage partial nitritation/anammox (PN/A) proccess using free nitrous acid to treat flocculent sludge [FNA处理絮体污泥恢复城市污水PN/A工艺短程硝化] [J]. | China Environmental Science , 2019 , 39 (8) : 3308-3315 . |
| MLA | Wang, Z.-H. et al. "Restoration of nitritation of the sewage partial nitritation/anammox (PN/A) proccess using free nitrous acid to treat flocculent sludge [FNA处理絮体污泥恢复城市污水PN/A工艺短程硝化]" . | China Environmental Science 39 . 8 (2019) : 3308-3315 . |
| APA | Wang, Z.-H. , Wang, B. , Gong, X.-F. , Qiao, X. , Peng, Y.-Z. . Restoration of nitritation of the sewage partial nitritation/anammox (PN/A) proccess using free nitrous acid to treat flocculent sludge [FNA处理絮体污泥恢复城市污水PN/A工艺短程硝化] . | China Environmental Science , 2019 , 39 (8) , 3308-3315 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The global warming of cement concrete pavement from raw material extraction to road construction was analyzed by the method of life cycle assessment. The characterization results showed that the procedure of producing material is the most important stage to emit greenhouse gas and it accounts for 98.5% of the global warming potential that caused by the material production and construction stage. For the materials used in different structure layers, surface layer is the biggest impact of greenhouse and accounts for 68.9% of the total impact caused by material used in constructing pavement. Therefore in the future, by using recycled materials or more environmental materials will be a good way to reduce environment impact. © (2015) Trans Tech Publications, Switzerland.
关键词 ：
Cement concrete; Global warming potential (GWP); Life cycle assessment (LCA); Pavement Cement concrete; Global warming potential (GWP); Life cycle assessment (LCA); Pavement
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhao, L.L. , Wang, Z.H. , Liu, Y. et al. Analysis on the global warming potential of cement concrete pavement in China [C] . 2015 : 418-424 . |
| MLA | Zhao, L.L. et al. "Analysis on the global warming potential of cement concrete pavement in China" . (2015) : 418-424 . |
| APA | Zhao, L.L. , Wang, Z.H. , Liu, Y. , Gong, X.Z. , Gao, F. , Cui, J.P. et al. Analysis on the global warming potential of cement concrete pavement in China . (2015) : 418-424 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In order to study on seismic performance of fiber reinforced polymer confined hollow section column of different slenderness ratio, the RC rectangular hollow section columns with slenderness ratio of 4 and 8 were designed. Quasi-static test was carried out to the tested columns, and the failure characteristic, seismic performance and additional moment were analyzed. The experimental result shows that ultimate lateral displacement of FRP confined hollow section columns with slenderness ration of 8 is increased by 16%. However, the maximal lateral force and ultimate lateral force is increased about 5%; pinch-shrinking effect of confined tested column with slenderness ration of 4 is reduced, while the additional moment of confined tested column with slenderness ration of 8 is reduced. Besides, comparing the measured lateral force-displacement of the top of tested columns and rotation deformation-moment of plastic hinge region for FRP confined columns with simulated results, it is shown that the simulated results have good agreement with experimental results.
关键词 ：
Bridge pier; Fiber reinforced polymer; Quasi-static test; Rectangular hollow section bridge pier; Seismic performance Bridge pier; Fiber reinforced polymer; Quasi-static test; Rectangular hollow section bridge pier; Seismic performance
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Du, X.-L. , Dong, Z.-H. , Han, Q. et al. Seismic performance of FRP confined bridge pier of rectangular hollow section [J]. | Journal of Beijing University of Technology , 2014 , 40 (2) : 214-222 . |
| MLA | Du, X.-L. et al. "Seismic performance of FRP confined bridge pier of rectangular hollow section" . | Journal of Beijing University of Technology 40 . 2 (2014) : 214-222 . |
| APA | Du, X.-L. , Dong, Z.-H. , Han, Q. , Wang, Z.-H. . Seismic performance of FRP confined bridge pier of rectangular hollow section . | Journal of Beijing University of Technology , 2014 , 40 (2) , 214-222 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Nanostructured Ni(OH)2 thin films were prepared by a simple solution growth process with F- and NH3 used as Ni2+ coordination agents, and ammonia hydroxide solution used as OH- supplier to accelerate the hydrolyzation of nickel complex species. The results showed Ni(OH)2 thin films were constructed mainly with hexagonal β - Ni (OH)2 nanorods; the F- and NH3 in reactive solutions played important roles in the film growth process; and solution pH had great influence on the morphologies of thin films, which was explained by the competition of Ni(OH)2 nucleation and growth in solutions. NiO crystallinity thin films were obtained by annealing Ni(OH)2 thin films at 400 °C for 2 h and the morphologies of the Ni(OH)2 thin films were sustained well during the annealed process. © 2007.
关键词 ：
Hydrolysis Hydrolysis Nanostructured materials Nanostructured materials Nickel compounds Nickel compounds pH effects pH effects Thin films Thin films
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Q.Y. , Wang, R.N. , Nie, Z.R. et al. Preparation and characterization of nanostructured Ni(OH)2 and NiO thin films by a simple solution growth process [J]. | Journal of Colloid and Interface Science , 2008 , 320 (1) : 254-258 . |
| MLA | Li, Q.Y. et al. "Preparation and characterization of nanostructured Ni(OH)2 and NiO thin films by a simple solution growth process" . | Journal of Colloid and Interface Science 320 . 1 (2008) : 254-258 . |
| APA | Li, Q.Y. , Wang, R.N. , Nie, Z.R. , Wang, Z.H. , Wei, Q. . Preparation and characterization of nanostructured Ni(OH)2 and NiO thin films by a simple solution growth process . | Journal of Colloid and Interface Science , 2008 , 320 (1) , 254-258 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The control strategy and simulation of external carbon addition were specially studied in an anoxic-oxic (A/O) process with low carbon: nitrogen (C/N) domestic wastewater. The control strategy aimed to adjust the flow rate of external carbon dosage to the anoxic zone, thus the concentration of nitrate plus nitrite (NOx(-) -N) in the anoxic zone was kept closed to the set point. The relationship was studied between the NOx(-) -N concentration in the anoxic zone (S-NO) and the dosage of external carbon, and the results showed that the removal efficiency of the total nitrogen (TN) could not be largely improved by double dosage of carbon source when S-NO reached about 2 mg/L. Through keeping S-NO at the level of about 2 mg/L, the demand of effluent quality could be met and the carbon dosage could be optimized. Based on the Activated Sludge Model No. 1 (ASM No. 1), a simplified mathematical model of external carbon dosage was developed. Simulation results showed that PI controller and feed-forward PI controller both had good dynamic response and steady precision. And feed-forward PI controller had better control effects due to its consideration of influent disturbances.
关键词 ：
ASM No. 1 ASM No. 1 biological nitrogen removal biological nitrogen removal external carbon addition external carbon addition feed-forward PI control feed-forward PI control
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Peng, YZ , Wang, ZH , Wang, SY . Study of control strategy and simulation in anoxic-oxic nitrogen removal process [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2005 , 17 (3) : 425-428 . |
| MLA | Peng, YZ et al. "Study of control strategy and simulation in anoxic-oxic nitrogen removal process" . | JOURNAL OF ENVIRONMENTAL SCIENCES 17 . 3 (2005) : 425-428 . |
| APA | Peng, YZ , Wang, ZH , Wang, SY . Study of control strategy and simulation in anoxic-oxic nitrogen removal process . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2005 , 17 (3) , 425-428 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Phase composition and pore structure of La, Ce, Y and B doped unsupported alumina membranes were investigated by means of X-ray diffraction and N-2 adsorption. The role of La, Ce, Y and B addition in enhancing the thermal stability of alumina membranes is discussed. At temperatures ranging from 800 to 1000 degreesC, La and Y impregnation are more efficient than that of B and Ce to preserve the BET surface area and pore volume. The addition of La can partially stabilize the alumina membranes up to 1200 degreesC by the delay of phase transformation from gamma- to alpha-Al2O3. (C) 2004 Elsevier B.V. All rights reserved.
关键词 ：
alumina membrane alumina membrane phase transformation phase transformation pore structure pore structure thermal stability thermal stability
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Wei, Q , Chen, ZX , Wang, ZH et al. Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2005 , 387 (1-2) : 292-296 . |
| MLA | Wei, Q et al. "Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes" . | JOURNAL OF ALLOYS AND COMPOUNDS 387 . 1-2 (2005) : 292-296 . |
| APA | Wei, Q , Chen, ZX , Wang, ZH , Hao, YL , Zou, JX , Nie, ZR . Effect of La, Ce, Y and B addition on thermal stability of unsupported alumina membranes . | JOURNAL OF ALLOYS AND COMPOUNDS , 2005 , 387 (1-2) , 292-296 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
