東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Reconciling pH for ammonia biofiltra...

Tyson, Richard V.

FindBook

Google Book

Amazon

博客來

Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium./
作者:	Tyson, Richard V.
面頁冊數:	120 p.
附註:	Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3240.
Contained By:	Dissertation Abstracts International70-06B.
標題:	Agriculture, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3360643
ISBN:	9781109187120

Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium.
Tyson, Richard V.

Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium. - 120 p.

Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3240.

Thesis (Ph.D.)--University of Florida, 2007.

Integrated hydroponic and aquaculture (aquaponic) production requires balancing pH and water quality for the growth of 3 organisms: plants, fish, and nitrifying bacteria. To improve systems integration, a series of trials were conducted to (1) determine the optimum pH for nitrification and evaluate performance of perlite as a biofilter, (2) determine the effect of hydroponic nutrients on nitrification, (3) make predictions about the contribution of plants and nitrifiers to ammonia biofiltration, and (4) establish a reconciling pH for ammonia biofiltration and cucumber yield in aquaponics. Total ammonium nitrogen (TAN) removal and NO2--N accumulation in a trickling perlite biofilter increased as pH increased from 5.5 to 8.5. Aquaponic biofilter TAN removal rates were 19, 31, and 80 g/m3/d for pH 6.0, 7.0 and 8.0, respectively. Nitrification was unaffected by plant nutrients in solution at optimum levels for hydroponic production. Nutrients may be tailored for plant production (with consideration for fish waste contributions) with no adverse impact on nitrifiers. Most probable number (MPN) sampling of biofilter cores indicated that aquaculture control at pH 7.0 with no plants had a higher (0.01% level) number of Nitrosomonas sp. biofilter bacteria compared to treatments containing plants in the biofilter. However, the highest ammonia biofiltration rate was aquaponic production (plant, fish, bacteria) at pH 8.0. pH was a more important factor than bacteria population in the rate of ammonia biofiltration---most likely due to pH induced increases in unionized ammonia, the substrate for the nitrification reaction. Ammonia biofiltration increased 3.7 times at pH 6.0 when bacteria and plants were in the biofilter compared to plants alone. The vigor of tilapia ( Oreochromis niloticus) feeding increased and mortality decreased as water pH increased from 6.0 to 8.0. Early marketable cucumber fruit yield decreased linearly as pH increased from pH 5.0 to pH 8.0. However, total marketable yield was unaffected by pH. The reconciling pH for ammonia biofiltration and cucumber yield should be pH 7.5 to 8.0 given the importance of pH and bacteria to the ammonia biofiltration rate, differences in fish vigor, and given that no difference in total cucumber fruit yield among treatments was found.

ISBN: 9781109187120Subjects--Topical Terms:

1017510
Agriculture, General.

Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium.
LDR:03309nam 2200301 4500 001 1404415
005 20111205104750.5
008 130515s2007 ||||||||||||||||| ||eng d
020 $a 9781109187120
035 $a (UMI)AAI3360643
035 $a AAI3360643
040 $a UMI $c UMI
100 1 $a Tyson, Richard V. $3 1683735
245 1 0 $a Reconciling pH for ammonia biofiltration in a cucumber/tilapia aquaponics system using a perlite medium.
300 $a 120 p.
500 $a Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3240.
500 $a Advisers: Eric H. Simonne; James M. White.
502 $a Thesis (Ph.D.)--University of Florida, 2007.
520 $a Integrated hydroponic and aquaculture (aquaponic) production requires balancing pH and water quality for the growth of 3 organisms: plants, fish, and nitrifying bacteria. To improve systems integration, a series of trials were conducted to (1) determine the optimum pH for nitrification and evaluate performance of perlite as a biofilter, (2) determine the effect of hydroponic nutrients on nitrification, (3) make predictions about the contribution of plants and nitrifiers to ammonia biofiltration, and (4) establish a reconciling pH for ammonia biofiltration and cucumber yield in aquaponics. Total ammonium nitrogen (TAN) removal and NO2--N accumulation in a trickling perlite biofilter increased as pH increased from 5.5 to 8.5. Aquaponic biofilter TAN removal rates were 19, 31, and 80 g/m3/d for pH 6.0, 7.0 and 8.0, respectively. Nitrification was unaffected by plant nutrients in solution at optimum levels for hydroponic production. Nutrients may be tailored for plant production (with consideration for fish waste contributions) with no adverse impact on nitrifiers. Most probable number (MPN) sampling of biofilter cores indicated that aquaculture control at pH 7.0 with no plants had a higher (0.01% level) number of Nitrosomonas sp. biofilter bacteria compared to treatments containing plants in the biofilter. However, the highest ammonia biofiltration rate was aquaponic production (plant, fish, bacteria) at pH 8.0. pH was a more important factor than bacteria population in the rate of ammonia biofiltration---most likely due to pH induced increases in unionized ammonia, the substrate for the nitrification reaction. Ammonia biofiltration increased 3.7 times at pH 6.0 when bacteria and plants were in the biofilter compared to plants alone. The vigor of tilapia ( Oreochromis niloticus) feeding increased and mortality decreased as water pH increased from 6.0 to 8.0. Early marketable cucumber fruit yield decreased linearly as pH increased from pH 5.0 to pH 8.0. However, total marketable yield was unaffected by pH. The reconciling pH for ammonia biofiltration and cucumber yield should be pH 7.5 to 8.0 given the importance of pH and bacteria to the ammonia biofiltration rate, differences in fish vigor, and given that no difference in total cucumber fruit yield among treatments was found.
590 $a School code: 0070.
650 4 $a Agriculture, General. $3 1017510
650 4 $a Agriculture, Plant Culture. $3 1018669
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
690 $a 0473
690 $a 0479
690 $a 0792
710 2 $a University of Florida. $3 718949
773 0 $t Dissertation Abstracts International $g 70-06B.
790 1 0 $a Simonne, Eric H., $e advisor
790 1 0 $a White, James M., $e advisor
790 $a 0070
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3360643