| 查看: 286 | 回复: 3 | |||
| 当前主题已经存档。 | |||
qazqaz1982金虫 (正式写手)
|
[交流]
求Water Sci Technol文献，赠送10金
|
||
|
求一篇Water Sci Technol文献， 题目：Chemical phosphorus removal to extremely low levels: experience of two plants in the Washington, DC area 来源出版物: WATER SCIENCE AND TECHNOLOGY 卷: 53 期: 12 页: 21-28 出版年: 2006 关于铁除磷酸盐的文献，小弟最近在做这方面的研究，请各位帮忙提供这篇文献，愿以10金相赠，谢谢。 |
回复此楼» 猜你喜欢
MBR除磷
已经有1人回复
-
聚氨酯涂层材料
已经有2人回复
-
环境化学论文润色/翻译怎么收费?
已经有224人回复
-
青基祈福
已经有69人回复
-
《中国环境科学》投稿，补充材料怎么添加？
已经有5人回复
-
求助高质量论文
已经有5人回复
-
中面上中面上中面上
已经有4人回复
-
求反渗透ROSA软件
已经有0人回复
-
IEEE出版,确保EI检索/2026年第8届人工智能与先进制造国际会议(AIAM 2026)
已经有12人回复
-
微生物蛋白测定
已经有0人回复
★
yuchaoying(金币+1,VIP+0):谢谢，辛苦了 3-15 22:57
yuchaoying(金币+1,VIP+0):谢谢，辛苦了 3-15 22:57
|
Water Science & Technology Vol 53 No 12 pp 21–28 © IWA Publishing 2006 doi:10.2166/wst.2006.402 Chemical phosphorus removal to extremely low levels: experience of two plants in the Washington, DC area I. Takács*, S. Murthy**, S. Smith*** and M. McGrath**** *EnviroSim Associates, 7 Innovation Drive, Suite 205, Flamborough, ON L9H 7H9, Canada (E-mail: imre@envirosim.com) **DCWASA, DWT, 5000 Overlook Ave., SW Washington, DC 20032, USA ***Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario, Canada N2L 3C5 ****Fairfax County Department of Public Works and Environmental Services, 9399 Richmond Hwy, Lorton VA 22079, USA -------------------------------------------------------------------------------- ABSTRACT Chemical phosphorus removal using metal (iron and aluminium) salts is frequently used to control effluent soluble phosphorus levels in wastewater treatment plants. In the Washington DC area effluent phosphorus requirements are extremely stringent to protect the Chesapeake Bay. Full-scale data from two plants in the area were analysed to establish phosphate behaviour in the presence of iron. Titration experiments and mathematical modelling were performed to determine the role of ferric phosphate and hydroxide precipitation and other mechanisms that may potentially be involved in phosphorus removal. Iron addition is described in the model using a chemical equilibrium approach extended with surface charges and adsorption. The model verifies key observations from full-scale data: (a) extremely low orthophosphate levels can be achieved over a wide range of pH values, (b) a mixture of ferric phosphate and ferric hydroxide precipitate is forming with the hydroxide acting as sorbent, (c) molar ratios of Fe/P (iron dosed to phosphate removed) vary widely (1.0–3.9) based on the technology used and residual phosphate levels. The model will be a useful tool for engineers to optimise preliminary, simultaneous and tertiary P removal, both for design and plant operation. Keywords: Chemical equilibrium; chemical phosphorus removal; full-scale; precipition 下不来 |
2楼2009-03-15 22:16:44
njuzxf791
木虫 (正式写手)
- 应助: 1 (幼儿园)
- 金币: 3477.9
- 红花: 1
- 帖子: 551
- 在线: 50.6小时
- 虫号: 497703
- 注册: 2008-02-02
- 性别: GG
- 专业: 海洋环境科学
★ ★
kongsun(金币+2,VIP+0):谢谢提供，欢迎常来环境版！ 3-16 20:42
kongsun(金币+2,VIP+0):谢谢提供，欢迎常来环境版！ 3-16 20:42
|
http://www.namipan.com/d/0531200 ... a406595e81bb2540300 下次去文献求助版，会快很多 |
3楼2009-03-16 08:40:57
qazqaz1982
金虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 2345.4
- 散金: 1775
- 红花: 3
- 帖子: 498
- 在线: 282.6小时
- 虫号: 667475
- 注册: 2008-12-03
- 专业: 环境工程
4楼2009-03-16 19:14:23
