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231224s2011 xx ||||| 00| ||eng c |
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|a pubmed24n0709.xml
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|a (DE-627)NLM212716166
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|a (NLM)22049722
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Reddy, G B
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Effect of polyaluminium chloride on phosphorus removal in constructed wetlands treated with swine wastewater
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| 264 |
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1 |
|c 2011
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 21.11.2011
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|a Date Revised 18.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Total phosphorus (TP) removal in aged constructed wetlands poses a challenge, especially when treated with swine wastewater with high concentrations of phosphorus (P). Our earlier studies with anaerobic lagoon swine wastewater treatment in constructed wetlands showed a decline in P removal (45-22%) with increased years of operation. These particular wetlands have been treated with swine wastewater every year since the first application in 1997. Preliminary lab-scale studies were conducted to evaluate the efficiency of polyaluminium chloride (PAC) in the removal of phosphate-P (PO4-P) from swine wastewater. The experimental objective was to increase the phosphorus treatment efficiency in constructed wetland by adding PAC as a precipitating agent. PAC was added by continuous injection to each wetland system at a rate of 3 L day(-1) (1:5 dilution of concentrated PAC). Swine wastewater was added from an anaerobic lagoon to four constructed wetland cells (11m wide x 40m long) at TP loads of 5.4-6.1 kg ha(-1) day(-1) in two experimental periods, September to November of 2008 and 2009. Treatment efficiency of two wetland systems: marsh-pond-marsh (M-P-M) and continuous marsh (CM) was compared. The wetlands were planted with cattails (Typha latifolia L.) and bulrushes (Scirpus americanus). In 2008, PAC treatment showed an increase of 27.5 and 40.8% of TP removal over control in M-P-M and CM respectively. Similar trend was also observed in the following year. PAC as a flocculant and precipitating agent showed potential to enhance TP removal in constructed wetlands treated with swine wastewater
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|a Journal Article
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7 |
|a Water Pollutants, Chemical
|2 NLM
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7 |
|a aluminum oxychloride
|2 NLM
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| 650 |
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7 |
|a 1327-41-9
|2 NLM
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| 650 |
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7 |
|a Phosphorus
|2 NLM
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| 650 |
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7 |
|a 27YLU75U4W
|2 NLM
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| 650 |
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7 |
|a Aluminum Hydroxide
|2 NLM
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| 650 |
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7 |
|a 5QB0T2IUN0
|2 NLM
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| 700 |
1 |
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|a Forbes, Dean A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hunt, P G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cyrus, Johnsely S
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 63(2011), 12 vom: 06., Seite 2938-43
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
1 |
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|g volume:63
|g year:2011
|g number:12
|g day:06
|g pages:2938-43
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|a GBV_USEFLAG_A
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|a AR
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| 952 |
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|d 63
|j 2011
|e 12
|b 06
|h 2938-43
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