Proceedings 會 刊 - SCCAEPA SPONSORS

specific surface area and morphology of the samples were characterized with X-ray diffraction (XRD),
Nitrogen adsorption-desorption, and Scanning electron microscopy (SEM). In this study, we prove the
Pb2+ adsorption effect by this kind of mesoporous materials as an adsorbent for sewage. The
experimental results show that adsorption rates to Pb2+ through this mesoporous materials could be over
95% under the condition that its pH more than 4, adsorption equilibrium can be finished in ten minutes.
The result proves the material has relatively good adsorption effect.
Keywords: biomass ash, mesoporous materials, heavy metal icon, adsorption
Analysis of Present Situations of Industrial Carbon Emissions and Its Decoupling Relationship
with Economic Development in the Central China
Pei-jiang Zhou 1, Wei Hang 1 , Lian-lian Nie 1 , Wei-li Gao 2
1.School of Resource and Environmental Science, Hubei BiomassResource Chemistry and Environm
ental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China 2.Wuhan Donghu
University, Wuhan, 430212, China, Email: zhoupj@whu.edu.cn, hw1027@live.cn,
657480941@qq.com, gwlwhu@tom.com
Abstract: In order to establish reasonable developing route and provide the basis for realizing better low
carbon economy for the central China, the analyzes of the present situations and the decoupling
relationship between industrial carbon emissions and economic development of Hubei, Hunan and Henan
province from 2000 to 2010 in the central China is explored in this paper. The analysis of the present
situations includes industrial carbon emissions, industrial carbon emissions intensity and industrial carbon
emissions per capita of these provinces in the past 10 years. The decoupling relationship between carbon
emissions and energy consumption, between energy consumption and economic growth, and the
influence between carbon emissions and economic growth are investigated by use of the Tapio model.
The results show that it has been realized the weak delinking between industrial carbon emissions and
economic growth in these provinces since 2002. However, the decoupling elastic coefficient is not small
enough and it has always been fluctuated with the time. The influences between industrial carbon
emissions and economy are mainly the energy structure and the low energy efficiency. So it will take a
long time to reach the goal of realizing the intensive delinking, which also proves the great possibility of
reduction in the central China.
Keywords: the central China; industrial carbon emissions; decoupling; Tapio model
Optimization of phase time of SBR combined with simultaneous nitrification and
denitrification and denitrifying dephosphatation
Guangcan Zhu( 朱 光 灿 ) Xiaofen Lei( 雷 晓 芬 ) Xiwu Lu*( 吕 锡 武 )
School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
Email: gc-zhu@seu.edu.cn, leixiaofen1988@126.com, 101002241@seu.edu.cn
Office Tel: +86 (25) 8379 5515
Abstract: A sequencing batch reactor (SBR) was operated to combined both simultaneous nitrification
and denitrification (SND) and denitrifying dephosphatation processes. The system reduced the oxygen
demand and excess activated sludge production and was investigated for domestic sewage treatment
with low ratio of COD/N. The process was composed of seven stages: feeding-anaerobic phosphorus
release-SND-denitrifying dephosphatation-aerobic-sedimentation- drainage. With the temperature of
25~28oC, MLSS of 3200±58mg/L and water filling ratio of 66%, the influent and effluent concentrations of
COD, TN, NH4+-N and TP were 200±5 vs. 9.0mg/L , 40±2 vs. 8.2mg/L, 40±2 vs. 0mg/L and 8±0.4 vs.
0.59mg/L, respectively. The optimized stage duration periods for anaerobic stage, SND stage, denitrifying
dephosphatation stage and aerobic stage were 2h, 3h, 3.5h and1h, respectively. 42.2% of COD was
removed at the end of anaerobic phosphorus release stage when the ORP variation rate dramatically
decreased to almost zero. DO was maintained at 1 mg/L during the SND stage and rapidly rose when
NH4+-N was completely consumed. pH started to increase instead of decrease when the denitrifying
dephosphatation stage was over. TN removal rate was 72.56% in SBR. The nitrogen removal rates by
SND and denitrifying dephosphatation was 11.24% and 76.92%, respectively. Meanwhile, 89.6% of TP
was removed in SBR and the removal rate of TP was 95.2% during the denitrifying dephosphatation
stage. The findings provided the effective nitrogen and phosphorus removal strategies for low C/N
sewage.
Keywords: sequencing batch reactor (SBR), denitrifying dephosphatation, simultaneous nitrification and
denitrification (SND), optimization of phase time
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