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	1. The Study of Acrylic Fiber Wastewater’s Degradation by Ultrasonic and Activated Sludge System
	Li Zhanchen,Han Xue,Nan Yan
	Environmental Science and Techology 22 August 2006
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	Abstract:Acrylic fiber wastewater is one kind of highly concentrated organic wastewater which contains various pollutants and complex compounds. It brings some large environmental pollutions and is difficult to deal through sole craft processing. This study focuses on the methods of removing acrylic fiber wastewater by using aerobic bio-chemical processing ，anaerobic bio-chemical processing and ultrasonic method. The result indicated that the disposal of COD could come up to 94.14%, the concentration of COD is only 85mg/L, attain to the first-level national effluent standard.
	TO cite this article:Li Zhanchen,Han Xue,Nan Yan. The Study of Acrylic Fiber Wastewater’s Degradation by Ultrasonic and Activated Sludge System[OL].[22 August 2006] http://en.paper.edu.cn/en_releasepaper/content/7987


	2. Microwave thermal pretreatment of sewage sludge
	Wang wei,Qiao wei
	Environmental Science and Techology 28 February 2006
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	Abstract:Water could absorb microwave and increase temperature rapidly within short time. Municipal wastewater treatment plant sewage sludge was used to be heated by microwave digestion reactor. Sludge total solid content (TS) was 2%, 4% and 5%. Microwave heating temperature was 150℃, 170℃ and 190℃, reaction time was 5 minutes. Results show that temperature rising trend from ambient to three specified temperature was similar. Colloid structure was destroyed to release soluble organic components. Dewaterability and settling performance were improved. TS and suspended solid content (SS) reduced. High temperature resulted high SS dissolving ratio. For TS 2% sludge, at 190℃ 40.0% of SS dissolved.
	TO cite this article:Wang wei,Qiao wei. Microwave thermal pretreatment of sewage sludge[OL].[28 February 2006] http://en.paper.edu.cn/en_releasepaper/content/5441


	3. Preparation and properties of Al2O3-ZrO2 composite hollow fiber ultrafiltration membranes
	Jiansheng Li,Yanxia Hao,Lianjun Wang
	Environmental Science and Techology 08 December 2005
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	Abstract:ZrO2–Al2O3 composite hollow fiber ultrafiltration membranes were prepared by filtration technique and sol-gel process using aluminium iso-propoxide and zirconyl chloride as raw materials. Characterization for membranes was performed by means of XRD, FT-IR spectroscopy, BET, SEM and gas permeation testing. The crystal phase of composite membranes is tetragonal ZrO2 from700℃ to 1100℃, and the thermal stability of composite membranes is greatly improved，compared to pure Al2O3 or ZrO2 membranes. SEM observation showed that the membranes are defect-free. Nitrogen isothermal absorption measurement presented that the most concentrative pore diameters are about 4.3 nm when the mole ratios of Al2O3/ZrO2 change from 4 to 0.05, and the pore size distributions are narrow. As a result, ZrO2–Al2O3 composite membranes can be developed as a method to secure the membrane from cracking in preparation process and high temperature applications.
	TO cite this article:Jiansheng Li,Yanxia Hao,Lianjun Wang. Preparation and properties of Al2O3-ZrO2 composite hollow fiber ultrafiltration membranes[OL].[ 8 December 2005] http://en.paper.edu.cn/en_releasepaper/content/4170


	4. Preparation mechanism of collagen fiber immobilized tannins and their adsorption behaviors for heavy metal ions
	Liao Xue-pin
	Environmental Science and Techology 04 April 2005
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	Abstract:s a kind of novel adsorption material, collagen fiber immobilized tannin has promised to be an effective adsorbent for removing heavy metal ions from water. In this paper, the mechanism of preparing collagen fiber immobilized tannins was explored and their adsorption behaviors for heavy metal ions were extensively investigated. The results indicated that the formation of the covalent linkage of aldehyde between the nucleophilic sites of tannins and the amino groups of collagen side chains is the reason for solvent extraction resistance and high thermal stability of immobilized tannins. This observation is different from the previous elucidation of collagen-tannin-aldehyde interaction and implies that only condensed tannins, which have rich nucleophilic sites, can be immobilized onto collagen fiber by the described approach. The immobilized condensed tannins were effective in adsorbing Au(III), Th(IV), Cu(II), Pb(II), Cd(II) and Hg(II) from water. For some metal ions, like Au(III) and
	TO cite this article:Liao Xue-pin. Preparation mechanism of collagen fiber immobilized tannins and their adsorption behaviors for heavy metal ions[OL].[ 4 April 2005] http://en.paper.edu.cn/en_releasepaper/content/1795

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