通过运用锰砂、黄铁矿及PHBV等功能性填料,构建以特定方式分层填充的生物滤柱(BF-MP)和对照组滤柱(BF-MN、BF-PP、BF-CK),为实现硝化-反硝化处理微污染水提供新方式。探究不同条件下氮转化效果,分析不同形态的氮及磷沿程变化,探索氮磷...通过运用锰砂、黄铁矿及PHBV等功能性填料,构建以特定方式分层填充的生物滤柱(BF-MP)和对照组滤柱(BF-MN、BF-PP、BF-CK),为实现硝化-反硝化处理微污染水提供新方式。探究不同条件下氮转化效果,分析不同形态的氮及磷沿程变化,探索氮磷去除途径。结果表明,脱氮效果受水力停留时间(HRT)、温度(T)影响,延长HRT或提高温度出水总氮降低,BF-MP硝氮去除率可达100%。沿程变化表明,NO_(3)^(-)-N主要在黄铁矿和PHBV混合填充区通过反硝化过程去除。BF-MP在HRT=12 h T=20~25℃时,脱氮除磷性能均较好,总氮去除率达到79.87%,磷酸根去除率达到75.19%,且长期运行出水稳定,具有良好的应用前景,为生物滤池及人工湿地的设计运行提供新思路。展开更多
Additives CK Ⅰ,CK Ⅱ for heat resistant insulating paper were prepared.The application conditions of the agents were optimized.The agents prepared in this paper showed good heat resistant activitis.
Reaction of nickel (Ⅱ) acetate with S-methyl-β-N-(4 dimethy-laminophenyl) methlenedithiocarbazate gave a mononuclear complex [Ni (C11H14N3S2)2]. Crystal of the title compound belongs to monoclinic systern,space grou...Reaction of nickel (Ⅱ) acetate with S-methyl-β-N-(4 dimethy-laminophenyl) methlenedithiocarbazate gave a mononuclear complex [Ni (C11H14N3S2)2]. Crystal of the title compound belongs to monoclinic systern,space group C2/cwith cell parameters a= 18. 785 (1), b= 17. 274 (1 ), c= 8. 344 (1 ) A, β= 108. 64(2)°, V= 2565(1 ) A3, Z=4, Mr= 563. 36, Dc= 1. 459 g/cm3; μ=10. 05 cm-1 andF(000) = 1176. The final refinement with 2179 observed reflections is converged withR= 0. 044 and R.= 0. 069. X-ray crystal structure analysis revealed that the coordina-tion geometry of Ni (Ⅱ) is a square-planar with two equivalent Ni -N and Ni - Sbonds. The Schiff-base ligand loses a proton from its tautomeric thiol form and is coor-dinated to the nickel atom via the mercapto sulphur and the β-nitiogen.展开更多
The title compound, 1,12,15 triaza 3,4:9,10 dibenzo 5,8 dioxacyclopentadecane N acetic lactam (C 22 H 29 N 3O 3Br 2, M r =543.29) has been synthesized and characterized by analytical data, IR and 1HNMR spectra. The co...The title compound, 1,12,15 triaza 3,4:9,10 dibenzo 5,8 dioxacyclopentadecane N acetic lactam (C 22 H 29 N 3O 3Br 2, M r =543.29) has been synthesized and characterized by analytical data, IR and 1HNMR spectra. The compound crystallizes in the trigonal system, space group R 3 with a = 35.194(1), c = 10.397(1) , γ=120°, V=11152.6(1) 3, Z=18, D c =1.456 gcm -3 , F(000)=4968, μ =3.3 mm -1 . Mo Kα radiation ( λ = 0.71073), R = 0.0145 for 3094 observed reflections 〔 I>2σ(I )〕 of 3392 independent reflections. The result shows that monofunction reaction for polyaza macrocycle were protonized. 1H NMR spectra of the ligand showed two sets of multiplets due to the two phenyl rings of the ligand in different environments.展开更多
The title compound biaquo (1.12-diaza-3, 4 : 9 . 10-dibenzos-5, 8-dioxacyclopentadecane-N-acetate) copper nitrate dihydrate. [Cu (C21H25O4N2) ( H2O)2].NO3·2H2O, Mr= 567. 05 . has been prepared. It crystallizes in...The title compound biaquo (1.12-diaza-3, 4 : 9 . 10-dibenzos-5, 8-dioxacyclopentadecane-N-acetate) copper nitrate dihydrate. [Cu (C21H25O4N2) ( H2O)2].NO3·2H2O, Mr= 567. 05 . has been prepared. It crystallizes in the monoclinic system. space group P21/a with a 12. 302(4) - b 13. 244(4), c= 15. 774(6)A . g=98. 59', V 2541 (l)\, Z 4. A(MoKα) = 0. 71069 A . D. l. 48 gcm-3. The structure was solved by direct methods with the final R 0. 060, R. 0. 081 for 3305observed reflections (I> 3a (I) ). The copper atom is surrounded by two nitrogen atoms and one oxygen atom from the carboxyl of the ligand and two oxygen atoms of coordinated water in a distorted square pyramidal arrangement. However, the two'ether oxygen atoms of the macrocyclic ligand are uncoordinated.展开更多
文摘通过运用锰砂、黄铁矿及PHBV等功能性填料,构建以特定方式分层填充的生物滤柱(BF-MP)和对照组滤柱(BF-MN、BF-PP、BF-CK),为实现硝化-反硝化处理微污染水提供新方式。探究不同条件下氮转化效果,分析不同形态的氮及磷沿程变化,探索氮磷去除途径。结果表明,脱氮效果受水力停留时间(HRT)、温度(T)影响,延长HRT或提高温度出水总氮降低,BF-MP硝氮去除率可达100%。沿程变化表明,NO_(3)^(-)-N主要在黄铁矿和PHBV混合填充区通过反硝化过程去除。BF-MP在HRT=12 h T=20~25℃时,脱氮除磷性能均较好,总氮去除率达到79.87%,磷酸根去除率达到75.19%,且长期运行出水稳定,具有良好的应用前景,为生物滤池及人工湿地的设计运行提供新思路。
文摘Additives CK Ⅰ,CK Ⅱ for heat resistant insulating paper were prepared.The application conditions of the agents were optimized.The agents prepared in this paper showed good heat resistant activitis.
文摘Reaction of nickel (Ⅱ) acetate with S-methyl-β-N-(4 dimethy-laminophenyl) methlenedithiocarbazate gave a mononuclear complex [Ni (C11H14N3S2)2]. Crystal of the title compound belongs to monoclinic systern,space group C2/cwith cell parameters a= 18. 785 (1), b= 17. 274 (1 ), c= 8. 344 (1 ) A, β= 108. 64(2)°, V= 2565(1 ) A3, Z=4, Mr= 563. 36, Dc= 1. 459 g/cm3; μ=10. 05 cm-1 andF(000) = 1176. The final refinement with 2179 observed reflections is converged withR= 0. 044 and R.= 0. 069. X-ray crystal structure analysis revealed that the coordina-tion geometry of Ni (Ⅱ) is a square-planar with two equivalent Ni -N and Ni - Sbonds. The Schiff-base ligand loses a proton from its tautomeric thiol form and is coor-dinated to the nickel atom via the mercapto sulphur and the β-nitiogen.
文摘The title compound, 1,12,15 triaza 3,4:9,10 dibenzo 5,8 dioxacyclopentadecane N acetic lactam (C 22 H 29 N 3O 3Br 2, M r =543.29) has been synthesized and characterized by analytical data, IR and 1HNMR spectra. The compound crystallizes in the trigonal system, space group R 3 with a = 35.194(1), c = 10.397(1) , γ=120°, V=11152.6(1) 3, Z=18, D c =1.456 gcm -3 , F(000)=4968, μ =3.3 mm -1 . Mo Kα radiation ( λ = 0.71073), R = 0.0145 for 3094 observed reflections 〔 I>2σ(I )〕 of 3392 independent reflections. The result shows that monofunction reaction for polyaza macrocycle were protonized. 1H NMR spectra of the ligand showed two sets of multiplets due to the two phenyl rings of the ligand in different environments.
文摘The title compound biaquo (1.12-diaza-3, 4 : 9 . 10-dibenzos-5, 8-dioxacyclopentadecane-N-acetate) copper nitrate dihydrate. [Cu (C21H25O4N2) ( H2O)2].NO3·2H2O, Mr= 567. 05 . has been prepared. It crystallizes in the monoclinic system. space group P21/a with a 12. 302(4) - b 13. 244(4), c= 15. 774(6)A . g=98. 59', V 2541 (l)\, Z 4. A(MoKα) = 0. 71069 A . D. l. 48 gcm-3. The structure was solved by direct methods with the final R 0. 060, R. 0. 081 for 3305observed reflections (I> 3a (I) ). The copper atom is surrounded by two nitrogen atoms and one oxygen atom from the carboxyl of the ligand and two oxygen atoms of coordinated water in a distorted square pyramidal arrangement. However, the two'ether oxygen atoms of the macrocyclic ligand are uncoordinated.
