许国仁
个性化签名
- 姓名:许国仁
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
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学科领域:
环境科学技术基础学科
- 研究兴趣:
许国仁,1987-1991 哈尔滨建筑工程学院 学士学位;1993-1999 哈尔滨建筑大学 博士学位;2000-2002 南京东南大学 博士后研究;2003-2004 University College London 博士后研究;2001-2007 哈尔滨工业大学 副研究员/硕士研究生导师;2007-2008 哈尔滨工业大学 副研究员/博士研究生导师;2008-至今 哈尔滨工业大学 教授/博士研究生导师。
目前承担国家自然科学基金,国家“十一五”重点项目,国家重大“水专项”课题,国际合作等课题的研究工作。
获国家技术发明二等奖;国家科技进步三等奖;中国高校技术发明一等奖;中国水协优秀论文一等奖;中国博士后资源与环境优秀学术论文奖等;获国家多项发明专利授权;入选教育部“新世纪优秀人才支持计划”。
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主页访问
1862
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关注数
0
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成果阅读
524
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成果数
11
许国仁, J.L. Zoua, b, G.R. Xua, ?, G.B. Li a
Journal of Hazardous Materials 165(2009)995-1001,-0001,():
-1年11月30日
To solve the disposal problems of residual sludges, wastewater treatment sludge (WWTS) and drinkingwater treatment sludge (DWTS) were tested as components for producing ceramsite. Fe2O3, CaO, and MgO were the major basic oxides in WWTS and DWTS, so their effect on characteristics of ceramsite was also investigated to optimize the process. Results show that WWTS and DWTS can be utilized for producing ceramsite with optimal contents of Fe2O3, CaO, and MgO ranging 5-8%, 2.75-7%, and 1.6-4%, respectively. Ceramsite within the optimal Fe2O3, CaO, and MgO contents ranges was characterized using thermal analysis, X-ray diffraction (XRD), morphological structures analyses, and compressive strength measurements. Higher strength ceramsite with more complex crystalline phases and fewer pores can be obtained at 6%≤Fe2O3 ≤8%. Lower strength ceramsite with more pores and amorphous phases can be obtained at 5%≤CaO≤7%, which implies that excessive Ca2+ exceeds the needed ions for producing electrical neutrality of silicate networks. Ceramsite characteristics are not dramatically influenced by MgO because Mg2+ cannot destroy the unity of crystalline structures. This revolutionary technology of utilization of WWTS and DWTS can produce high performance ceramsite thus reducing costs of sludge disposal, in accordance with the concept of sustainable development.
Basic oxide, Ceramsite, Drinking-water treatment sludge, Wastewater treatment sludge
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【期刊论文】Recycle of Alum recovered from water treatment sludge in chemically enhanced primary treatment
许国仁, G.R. Xu?, Z.C. Yan, Y.C.Wang, N.Wang
Journal of Hazardous Materials 161(2009)663-669,-0001,():
-1年11月30日
An investigation was made to study the feasibility of recovering the Alum from coagulation sludges and reusing it in chemically enhanced primary treatment (CEPT) process to make the CEPT more cost-effective and recover the resource (Alum) efficiently. The optimum condition and efficiency of the acidification method for Alum recovery from coagulation sludge were investigated in the test. The results show that when the recovery rate of Alum reaches its highest level, 84.5%, the reduction rate of sludge is 35.5%. It turns out that the capability of recovered coagulant to remove turbidity, UV254 and COD are 96%, 46% and 53%, respectively. The results prove that the recovered coagulants could be used in CEPT and the efficiency of recovered coagulant to remove pollutants is similar to that of fresh coagulant. Although some substances will be enriched during recycle, they have little effect on the quality of treatedwastewater. The experiments verify that itwould be an advisable and cost-effectiveway to recover Alum from coagulation sludges in water treatment and chemical wastewater treatment, and it could be then recycled to CEPT as well as reduce sludge volume.
Alum, Sludge, Chemically enhanced primary treatment, Acidification
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许国仁, GUOREN XU, * JINLONG ZOU, AND GUIBAI LI
Environ. Sci. Technol. 2008, 42, 7417-7423,-0001,():
-1年11月30日
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【期刊论文】Solidification and leaching behaviours of Cr6+ in sludge ceramsite
许国仁, G.R. Xu?, J.L. Zou, G.B. Li
Journal of Hazardous Materials 153(2008)1031-1035,-0001,():
-1年11月30日
Making lightweight ceramsite with sewage sludge is a new effective approach for disposal of sludge. However, there is a concern as to whether the heavy metals such as Cr6+ in sewage sludge can be solidified in ceramsite after sintering. The configuration of Cr6+ in ceramsite was analyzed by X-ray diffraction (XRD) and leaching tests were conducted to determine the effects of sintering temperature, pH and H2O2 concentration on the stabilization of Cr6+ in ceramsite. The results show that leaching of Cr6+ changes little at temperatures above 900℃, and both pH and H2O2 concentration have some effects on the leaching of Cr6+. Leaching test results indicate that Cr6+ is stabilized in ceramsite and cannot be easily released to the environment again as secondary pollution, which eliminates the concern for its application. XRD analysis of ceramsite sintered at 1000℃ reveals that the main compounds of Cr6+ in ceramsite are Cr2O3 and FeCrO4. The test results provides a better understanding of the factors that affect the mobility of Cr6+, and show it is a safe way to make ceramsite with sludge as an additive.
Ceramsite, Heavy metal, Cr6+, , Sewage sludge, XRD
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44浏览
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【期刊论文】Adsorbent obtained from CEPT sludge in wastewater chemically enhanced treatment
许国仁, G.R. Xu, W.T. Zhang, G.B. Li
Water Research 39(2005)5175-5185,-0001,():
-1年11月30日
Chemically enhanced primary treatment (CEPT) in municipal wastewater treatment is particularly suitable for rapidly growing cities. The focus on CEPT process now might be the cost of chemicals and disposal of chemical sludge. In this study, the potential application of adsorbent made from CEPT sludge in CEPT wastewater treatment was investigated in various conditions, such as the adsorbent dosage, pH, and dosing modes of ferric chloride and adsorbent. It was found that sludge-derived adsorbent was a good way of sludge disposal while enhanced pollutants removal rate and reduced the fresh ferric chloride dosage. With the use of 10.0mg L 1 of ferric chloride and 0.6 g L 1 of the adsorbent at the first stage simultaneously, the enhanced removal efficiencies of turbidity, UV254, COD, TP were 83.3%, 52.3%, 48.8% and 89.0%, respectively. The experiments showed that ferric chloride dose was reduced about 50%. The pH played a significant role in coagulation and adsorption process.
CEPT, Adsorbent, Sludge, Activation, Coagulation, Wastewater
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许国仁, GUOREN XU, *, JINLONG ZOU, GUIBAI LI
Environ. Sci. Technol. 42 (2008) 7417-7423,-0001,():
-1年11月30日
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29浏览
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90下载
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【期刊论文】Degradation of azo dye active brilliant red X-3B by composite ferrate solution
许国仁, G. R. Xu∗, Y. P. Zhang, G. B. Li
Journal of Hazardous Materials 161 (2009) 1299-1305,-0001,():
-1年11月30日
Composite ferrate(VI) solution (CFS) with improved stability was successfully prepared in this study. The stability of Fe(VI) increased from hours for potassium ferrate at pH 9–10 to 16d for 1mmol/L−1 Fe(VI) in CFS at 25℃, decomposing 24%. The Fe(VI) was more stable at low concentration (1mmol/L−1) than that at high concentration (10mmolL−1). The degradation of the azo dye reactive brilliant red X-3B (X-3B) by CFS was investigated. The results showed that pH, initial dye concentration and CFS dosage affected the degradation efficiency. For 0.08mmolL−1 X-3B simulatewastewater, the optimal pH and CFS dosagewere 8.4 and 25mgL−1 (as K2FeO4), and about 99% X-3B was decolorized after 20 min under this conditions. The color decay was considerably faster than the decrease in COD and TOC, which was attributed to the ease of chromophore destruction. Compared with the decolorization, the removal percentage of COD and TOC were 42% and 9% after 60min, respectively. The Fe(VI) and ClO-were contained in CFS, which have synergetic effect for the degradation of X-3B. Additionally, phthalic acid and muconic acidwere identified as intermediates by GC/MS, which was in accordance with the lowered pH with the reaction time. The complete mineralization of X-3B cannot be achieved under the oxidation by CFS. And a tentative pathway for the oxidative degradation of X-3B was postulated.
Composite ferrate solution, Active brilliant red X-3B, Azo dye, Oxidation
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25浏览
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【期刊论文】Solidification and leaching behaviours of Cr6+ in sludge ceramsite
许国仁, G. R. Xu∗, J. L. Zou, G. B. Li
Journal of Hazardous Materials 153 (2008) 1031-1035,-0001,():
-1年11月30日
Making lightweight ceramsite with sewage sludge is a new effective approach for disposal of sludge. However, there is a concern as to whether the heavy metals such as Cr6+ in sewage sludge can be solidified in ceramsite after sintering. The configuration of Cr6+ in ceramsite was analyzed by X-ray diffraction (XRD) and leaching tests were conducted to determine the effects of sintering temperature, pH and H2O2 concentration on the stabilization of Cr6+ in ceramsite. The results show that leaching of Cr6+ changes little at temperatures above 900℃, and both pH and H2O2 concentration have some effects on the leaching of Cr6+. Leaching test results indicate that Cr6+ is stabilized in ceramsite and cannot be easily released to the environment again as secondary pollution, which eliminates the concern for its application. XRD analysis of ceramsite sintered at 1000℃ reveals that the main compounds of Cr6+ in ceramsite are Cr2O3 and FeCrO4. The test results provides a better understanding of the factors that affect the mobility of Cr6+, and show it is a safe way to make ceramsite with sludge as an additive.
Ceramsite, Heavy metal, Cr6+, , Sewage sludge, XRD
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28浏览
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122下载
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【期刊论文】Stabilization of heavy metals in ceramsite made with sewage sludge
许国仁, G. R. Xu∗, J. L. Zou, G. B. Li
Journal of Hazardous Materials 152 (2008) 56-61,-0001,():
-1年11月30日
In order to investigate stabilization of heavy metals in ceramsite made with sewage sludge as an additive, the configuration of heavy metals in ceramsite was analysed by XRD and while leaching tests were conducted to find out the effect of sintering temperature (850℃, 900 ℃, 950℃, 1000℃, 1100℃, and 1200℃), pH (1, 3, 5, 7, 9, and 12), and H2O2 concentration (0.5mol/L−1, 1mol/L−1, 1.5mol/L−1, 3mol/L−1, and 5mol/L−1) on stabilization of heavy metals (Cd, Cr, Cu, and Pb) in ceramsite. The results indicate that leaching contents of heavy metals do not change above 1000℃ and sintering temperature has a significant effect on stabilization of heavy metals in ceramsite; leaching contents of heavy metals decrease as pH increases and increase as H2O2 concentration increases. XRD analysis reveals that the heavy metals exist in steady forms, mainly Pb2O(CrO4), CdSiO3, and CuO at 1100℃. It is therefore concluded that heavy metals are properly stabilized in ceramsite and cannot be easily released into the environment again to cause secondary pollution.
Ceramsite, Sewage sludge, Leaching test, Stabilization, Heavy metals
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【期刊论文】Effect of sintering temperature on the characteristics of sludge ceramsite
许国仁, G. R. Xu∗, J. L. Zou, G. B. Li
Journal of Hazardous Materials 150 (2008) 394-400,-0001,():
-1年11月30日
In order to investigate the effect of sintering temperature on the characteristics of sludge ceramsite and find an optimal sintering temperature, dried sewage sludge, clay, and water glass were mixed at ratios of dried sewage sludge/clay=33% and water glass/clay=15%. Then these mixtures were heated to 850, 900, 950, 1000, 1100, and 1200℃ for production of sludge ceramsite. The sludge ceramsite were characterized by DTA-TGA, SEM-EDS, XRD, and XRF. The results indicate that the differences in thermal behaviours are caused by the compositional and structural variations; the ceramsite sintered at 1000℃ has more uniformly distributed finer pores (0.5m< pore size < 10.0m), while the ceramsite sintered at other temperatures has less pores and rougher surfaces. The main crystalline phases of ceramsite are quartz and kyanite below 1000℃; kyanite is the main crystalline phase at 1000℃ and 11000℃ and most of the crystalline phases are mullite at 1200℃. It is therefore concluded that sintering temperature has a significant effect on the characteristics of sludge ceramsite, and that 1000℃ is the optimal sintering temperature.
Sludge ceramsite, Crystalline phase, Sintering temperature, Thermal behaviour
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