東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Phosphate recovery from wastewaters ...

University of Guelph (Canada).

Linked to FindBook

Google Book

Amazon

博客來

Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite./
Author:	Lanning, Mary-Catherine E.
Description:	135 p.
Notes:	Source: Masters Abstracts International, Volume: 47-05, page: .
Contained By:	Masters Abstracts International47-05.
Subject:	Engineering, Sanitary and Municipal. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR47784
ISBN:	9780494477847

Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite.
Lanning, Mary-Catherine E.

Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite. - 135 p.

Source: Masters Abstracts International, Volume: 47-05, page: .

Thesis (M.Sc.)--University of Guelph (Canada), 2009.

Limited phosphate resources, increasing fertilizer prices and unsustainable methods of treating phosphates in wastewaters have resulted in the need for phosphate recovery technologies. One method involves the precipitation of a magnesium ammonium phosphate mineral called 'struvite' (MgNH 4PO4·6HO). Wastewaters often require an additional source of Mg2+ and a solution pH between 8 and 11 in order to achieve orthophosphate (OP) removal as struvite. This research examined 3 effluents to determine an ideal pH for producing the lowest residual values of OP. Two types of MgO were also tested for their ability to reduce OP concentrations: a pure chemical source and ground MgO refractories. Optimal pH levels were not determined, as it was likely that the supersaturation was too high to produce differences in OP removal. Chemical-grade MgO was more reactive than the refractories, and was therefore more effective in removing OP as struvite in wastes where Mg2+ was limiting. OP removal rates of >90% were achieved in each effluent.

ISBN: 9780494477847Subjects--Topical Terms:

1018731
Engineering, Sanitary and Municipal.

Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite.
LDR:01882nmm 2200265 a 45 001 890626
005 20101103
008 101103s2009 eng d
020 $a 9780494477847
035 $a (UMI)AAIMR47784
035 $a AAIMR47784
040 $a UMI $c UMI
100 1 $a Lanning, Mary-Catherine E. $3 1064586
245 1 0 $a Phosphate recovery from wastewaters comparing two different sources of magnesium oxide in the precipitation of struvite.
300 $a 135 p.
500 $a Source: Masters Abstracts International, Volume: 47-05, page: .
502 $a Thesis (M.Sc.)--University of Guelph (Canada), 2009.
520 $a Limited phosphate resources, increasing fertilizer prices and unsustainable methods of treating phosphates in wastewaters have resulted in the need for phosphate recovery technologies. One method involves the precipitation of a magnesium ammonium phosphate mineral called 'struvite' (MgNH 4PO4·6HO). Wastewaters often require an additional source of Mg2+ and a solution pH between 8 and 11 in order to achieve orthophosphate (OP) removal as struvite. This research examined 3 effluents to determine an ideal pH for producing the lowest residual values of OP. Two types of MgO were also tested for their ability to reduce OP concentrations: a pure chemical source and ground MgO refractories. Optimal pH levels were not determined, as it was likely that the supersaturation was too high to produce differences in OP removal. Chemical-grade MgO was more reactive than the refractories, and was therefore more effective in removing OP as struvite in wastes where Mg2+ was limiting. OP removal rates of >90% were achieved in each effluent.
590 $a School code: 0081.
650 4 $a Engineering, Sanitary and Municipal. $3 1018731
650 4 $a Geochemistry. $3 539092
650 4 $a Geotechnology. $3 1018558
690 $a 0428
690 $a 0554
690 $a 0996
710 2 0 $a University of Guelph (Canada). $3 1018650
773 0 $t Masters Abstracts International $g 47-05.
790 $a 0081
791 $a M.Sc.
792 $a 2009
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR47784