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	1. The Effect of Degree of Sulfonation of Sulfonated Poly(arylene ether sulfone) Membranes on the Microbial Fuel Cell Performance
	Bi Huiping,Ran Dongqin,Hu Zhaoxia,Chen Shouwen
	Environmental Science and Techology 03 June 2016
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:A series of sulfonated poly(arylene ether sulfone) (SPAES) membranes with different of degree of sulfonation (DS) are prepared for microbial fuel cell (MFC) applications. The performance of the MFCs equipped with SPAES membranes is investigated in details. During the start-up stage, the need time of reaching stable state and maximum anodic potential for the MFCs decreases with the increase of DS of the SPAES membranes. However, the power density of MFCs with SPAES(5-5), SPAES(4-6), SPAES(3-7) is very close after 14 days, which should be resulted from the combining effects of the exchange of H+ to Na+ in the SPAES membrane and the fouling of the membranes. The DS affects the anti-fouling activity of SPAES membranes, and higher DS leads to lower anti-fouling activity. The MFC equipped with SPAES(3-7) membrane (DS=30%, IEC=1.31 mmol g-1) is considered the better choice for the long-term operation.
	TO cite this article:Bi Huiping,Ran Dongqin,Hu Zhaoxia, et al. The Effect of Degree of Sulfonation of Sulfonated Poly(arylene ether sulfone) Membranes on the Microbial Fuel Cell Performance[OL].[ 3 June 2016] http://en.paper.edu.cn/en_releasepaper/content/4695751


	2. Aerobic sludge granulation facilitated by granular activated carbon for partial nitrification
	LI Anjie,HOU Baolian
	Environmental Science and Techology 23 June 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:Although the use of partial nitrification, or nitritation, for nitrogen removal via nitrite is an energy-saving method for treating high-strength ammonia wastewater, its stable operation with sufficient enrichment of ammonia-oxidizing bacteria (AOB) is difficult to maintain in activated sludge systems. In this study, an aerobic granulation technique was developed for the effective and stable nitritation treatment of ammonia-rich inorganic influent. Granular activated carbon (GAC) was added to the bioreactor to enhance the granulation of slow-growing AOB. The results show that aerobic granules could be formed for partial nitrification through the selective discharge of small and slow-settling sludge flocs, with or without activated carbon addition. However, dosing GAC into the sludge greatly accelerated the granulation process and shortened the granulation period from about 6 weeks to less than 3 weeks with the formation of large and fast-settling granules. Compared to activated sludge flocs, sludge granulation with selective sludge discharge was found to help halt ammonia oxidation to the level of partial nitrification rather than complete nitrification.
	TO cite this article:LI Anjie,HOU Baolian. Aerobic sludge granulation facilitated by granular activated carbon for partial nitrification[OL].[23 June 2014] http://en.paper.edu.cn/en_releasepaper/content/4602129


	3. Study of pattern and products of salting out in treating mustard tuber wastewater by mixed hybrid membrane bioreactor
	CHAI Hongxiang,AI Nanping,CHEN Wei
	Environmental Science and Techology 01 February 2013
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	Abstract:When treating a mustard tuber wastewater with high concentration of salt and nitrogen by mixed hybrid membrane bioreactor, the salting out could accelerate speed of membrane fouling that would lead to the decrease of membrane flux, even make the membrane useless due to the membrane damage. In order to solve this problem, an experimental research was carried to study of the pattern and the products of salting out in treating mustard tuber wastewater by membrane bioreactor(MBR). According to the analysis of salting out, it could provide theoretical foundations for slowing down and preventing membrane from fouling. The research showed that the crystal precipitation, the filamentous sludge, the grainy sludge and sludge lumping would respectively adhere to the membrane modules when the experimental water temperature was respectively controlled at under 10 C, between 10 C and 15 C, and above 15 C. So it could be concluded that temperature was the main factor of effecting salting out, and lower temperature leaded to more salting out as well as more servere membrane fouling. The degree of salting out of the four situations was crystal precipitation> filamentous sludge adhering> grainy sludge adhering≈sludge lumping.
	TO cite this article:CHAI Hongxiang,AI Nanping,CHEN Wei. Study of pattern and products of salting out in treating mustard tuber wastewater by mixed hybrid membrane bioreactor[OL].[ 1 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4515613


	4. Optimization of Operating Conditions for MBR Treating Mustard Tuber Wastewater by RSM
	CHAI Hongxiang,Wei Yinghua,DU Jun,FANG Junhua
	Environmental Science and Techology 24 January 2013
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (4K B)

	Abstract:In this paper the effects of operating conditions of the membrane bioreactor (MBR) treating mustard tuber wastewater with 7% of salinity (calculated as NaCl) on membrane fouling rate was investigated , and the operating conditions of the reactor was optimized. With the increasing rate of filtration resistance with the cumulative permeate volume（Kv）used to characterize the membrane fouling rate, the study designed three sets of single- factor experiments to investigate the effects of suction suspended time (t), aeration intensity (UGr) and transmembrane pressure (ΔP) on Kv. The result showed that with increasing of t, UGr and ΔP, KV decreased at first and then increased, and t, UGr and ΔP had optimal values. With response surface methodology(RSM)，the MBR operating conditions were optimized，and the optimal conditions was as follows: t = 2min, UGr = 12m3m-2h-1 and ΔP = 5KPa. Through analysis of the response surface plots, interactions between the operating conditions were analyzed, and a conclusion was drawn that interaction between t and UGr was strong, and so was interaction between UGr and ΔP, but the interaction between t and ΔP was not significant.
	TO cite this article:CHAI Hongxiang,Wei Yinghua,DU Jun, et al. Optimization of Operating Conditions for MBR Treating Mustard Tuber Wastewater by RSM[OL].[24 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4515610


	5. Preparation and Enhanced Photocatalytic Activity of Heterostructured ZnxCd1-xS/TiO2 nanofibers
	Yang Guorui,Yan Wei
	Environmental Science and Techology 07 November 2012
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	Abstract:The hierarchical ZnxCd1-xS-TiO2 heterostructures were successfully synthesized by the combination of an electrospinning technique and hydrothermal method. These heterostructures were characterized for the morphological, structural and optical, properties by scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDS), transmission electron micrography(TEM), X-ray diffraction(XRD) and diffuse reflectance UV/visible absorption spectroscopy(UV-vis). The photocatalytic investigation showed that the ZnxCd1-xS-TiO2 heterostructures possessed enhanced photocatalytic efficiency of photodegradation of Rhodamine B (RhB) compared with the primaryTiO2 nanofibers and sole ZnxCd1-xS nanopaticles prepared via hydrothermal process under UV light irradiation.The composite of different semiconductor may facilitate the photogenerated charge carriers separation and transfer due to the difference in the band edge positions.
	TO cite this article:Yang Guorui,Yan Wei. Preparation and Enhanced Photocatalytic Activity of Heterostructured ZnxCd1-xS/TiO2 nanofibers[OL].[ 7 November 2012] http://en.paper.edu.cn/en_releasepaper/content/4493102


	6. A model of submerged membrane bioreactor removing organic substrate and its applications
	Feng Li,Feng Lijuan,Fan Huiju,Zhang Liqiu
	Environmental Science and Techology 12 March 2012
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	Abstract:In this paper, ROM model, a kinetics model on organic substrate removal, was established on the basis of material balance in submerged membrane bioreactor (SMBR). According to the model, the organic substrate removal rate is determined by not only the organic substrate concentrations in influent and effluent, hydraulic retention time (HRT), but also the organic substrate concentration removed by membrane module and sludge retention time (SRT). Meanwhile, SRT and the maximum value of mixed liquor volatile suspended solids (MLVSS) without discharging sludge can be determined as well as the concentration of MLVSS can be predicted in reactor. Brewery wastewater was chosen and examined to verify the model and the results showed that the experimental data were coincident with the calculating data.
	TO cite this article:Feng Li,Feng Lijuan,Fan Huiju, et al. A model of submerged membrane bioreactor removing organic substrate and its applications[OL].[12 March 2012] http://en.paper.edu.cn/en_releasepaper/content/4470659


	7. A Study on the Removal of Carbamazepine and Nitrobenzene in an Enhanced Membrane Bioreactor Process by Adding Powder Activated Carbon
	FAN Huiju,FENG Li,FENG Lijuan,ZHANG Liqiu
	Environmental Science and Techology 31 October 2011
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