The importance of dissolved organic phosphorus to phosphorus uptake by limnetic plankton

Bentzen, Ellen; Taylor, William D.; Millard, Éric

doi:10.4319/lo.1992.37.2.0217

Cited by 78 publications

(39 citation statements)

References 25 publications

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“…P i stock solutions (100 mg L −1 ) were prepared by dissolving 0.4387 g K 2 HPO 4 into 1 L distilled water. Previous studies found that ATP was an effective substrate for tracing P o dynamics in phytoplankton and periphyton (Bentzen et al, 1992;Scinto & Reddy, 2003). Thus, P o stock solution (100 mg L −1 ) was prepared by dissolving 0.6505 g ATP (disodium adenosine triphosphate, C 10 H 14 O 13 N 5 P 3 Na 2 ·3H 2 O, sigma) into 1 L distilled water.…”

Section: P Removal By the Periphytonmentioning

confidence: 99%

Phototrophic periphyton techniques combine phosphorous removal and recovery for sustainable salt-soil zone

Feng

et al. 2016

Science of The Total Environment

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• Phototrophic periphyton is effective in removing P (P o and P i ) from wastewaters.• Adsorption with physiochemical characteristic dominated P removal mechanism by periphyton.• The P within periphyton is mainly in forms of Labile-P and Ca-P.• The periphyton has vast potential application in recovering P for salt-soil zone The P (P i as KH 2 PO 4 and P o as ATP) removal processes by phototrophic periphyton were investigated by determining the removal kinetics, metal content (Ca, Mg, Al, Fe, Cu, and Zn) of the solution and P fractions (Labile-P, Fe/Al-P, Ca-P, and Res-P) within the periphyton. Results showed that the periphyton was able to remove completely both P i and P o after 48 h when periphyton content was greater than 0.2 g L −1 (dry weight). The difference between P i and P o removal was the conversion of P o into P i by the periphyton, after that the removal mechanism was similar. The P removal mechanism was mainly due to the adsorption on the surfaces of the periphyton, including two aspects: i) the adsorption of PO 4 3− onto metal salts such as calcium carbonate (~50%) and ii) complexation between PO 4 3− and metal cations such as Ca 2+ (~40%). However, this bio-adsorptional process was significantly influenced by the extracellular polymeric substance (EPS) of periphyton, water hardness, initial G R A P H I C A L A B S T R A C T a b s t r a c t a r t i c l e i n f oKeywords:Science of the Total Environment 568 (2016) 838-844Abbreviations: α, the initial adsorption rate (mg g −1 h −1 ); β, the desorption constant (g mg −1 ); m, mass of adsorbent (g); t, time (h); C, the constant of boundary layer effect; H, Shannon index; R, ideal gas constant (8.314 J mol −1 K −1 ); T, temperature (K); V, the volume of solutions (L); k 1 , pseudo-first-order kinetic model rate constant (h −1 ); k 2 , pseudosecond-order kinetic model rate constant (mg g −1 h −1 ); q e , the amount of P adsorbed onto the periphyton at equilibrium (mg g −1 ); q e,cal , the amount of P adsorbed onto the periphyton calculated by model at equilibrium (mg g −1 ); q m , the maximum adsorption capacity for the periphyton (mg g −1 ); q t , the amount of P adsorbed onto the periphyton at time t (mg g −1 ); C 0 , initial P concentration (mg L −1 ); K id , intraparticle rate constant (mg g −1 h -0.5 ); P i , inorganic phosphorus (mg L −1 ); P o , organic phosphorus (mg L −1 ); TP, the total phosphorus content (mg L −1 ); R 2 , linear regression coefficient; ANSW, artificial non-point source wastewater; ATP, disodium adenosine triphosphate (C 10 H 14 O 13 N 5 P 3 Na 2 ·3H 2 O); DW, dry weight of the periphyton (g); EPS, extracellular polymeric substance of the periphyton; PDW, pure distilled water.⁎ Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v P concentration, temperature and light intensity. This study not only deepens the understanding of P biogeochemical process in aquatic ecosystem, but provides a potential biomaterial...

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Section: P Removal By the Periphytonmentioning

confidence: 99%

Phototrophic periphyton techniques combine phosphorous removal and recovery for sustainable salt-soil zone

Feng

et al. 2016

Science of The Total Environment

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“…The E a value for the adsorption of P org onto the periphyton is found to be as 27.082 kJ mol 21 , which suggests that the adsorption of P org in the presence of the periphyton is exhibited the characteristic of physical adsorption.…”

Section: P Org Removal By the Periphytonmentioning

confidence: 81%

“…In physical adsorption, E a value is usually low between 5-40 kJ mol 21 since the equilibrium is usually rapidly attained and the energy requirements are weak [36]. Chemical adsorption is specific and involves forces much stronger than physical adsorption, where E a value is commonly high between 40 and 800 kJ mol 21 according to Arrhenius equation [37]. However, in some systems the chemical adsorption occurs very rapidly and E a Figure 5.…”

Section: P Org Removal By the Periphytonmentioning

confidence: 99%

“…Previous studies found that ATP was an effective substrate for tracing organic phosphorus dynamics in phytoplankton and periphyton [17,21]. Thus, P org stock solution (100 mg P L 21 ) was prepared by dissolving 0.6505 g ATP (disodium adenosine triphosphate, C 10 H 14 O 13 N 5 P 3 Na 2 ?3H 2 O, sigma) into 1 L distilled water.…”

Section: P Org Stock Preparationmentioning

confidence: 99%

“…Parameter k 1 represents the adsorption first-order rate constant (min 21 ) that calculated from the plot of log (q e 2q c ) against time (t).…”

mentioning

confidence: 99%

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The Behavior of Organic Phosphorus Under Non-Point Source Wastewater in the Presence of Phototrophic Periphyton

Lu¹,

Yang²,

Zhang³

et al. 2015

Efficient Management of Wastewater From Manufacturing

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To understand the role of ubiquitous phototrophic periphyton in aquatic ecosystem on the biogeochemical cycling of organic phosphorus, the conversion and removal kinetic characteristics of organic phosphorus (Porg) such as adenosine triphosphate (ATP) were investigated in the presence of the periphyton cultured in artificial non-point source wastewater. The preliminary results showed that the periphyton was very powerful in converting P org evidenced by the fact that inorganic phosphorus (P inorg ) content in solution increased from about 0.7 to 14.3 mg P L 21 in 48 hours in the presence of 0.6 g L 21 periphyton. This was because the periphyton could produce abundant phosphatases that benefited the conversion of P org to P inrog . Moreover, this conversion process was described more suitable by the pseudo-first-order kinetic model. The periphyton was also effective in removing P org , which showed that the P org can be completely removed even when the initial P org concentration was as high as 13 mg P L 21 in 48 hours in the presence of 1.6 g L 21 periphyton. Furthermore, it was found that biosorption dominated the P org removal process and exhibited the characteristics of physical adsorption. However, this biosorption process by the periphyton was significantly influenced by biomass (absorbent dosage) and temperature. This work provides insights into P org biogeochemical circulation of aquatic ecosystem that contained the periphyton or similar microbial aggregates.

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Analysis of Phosphorus Species in Water

Packa¹,

Bostan²,

Furdui³

2019

Encyclopedia of Water

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A limiting nutrient for aquatic ecosystems, the natural and anthropogenic sourced phosphorus is present in surface waters. Monitoring of phosphorus in water samples and reduction procedures were developed to minimize the occurrence of harmful algal blooms. Phosphate is the most common phosphorus species in water, being present in anionic form (inorganic phosphate) or attached to a carbon‐based molecule (organic phosphate). Although various methods have been developed for phosphate and total phosphorus analysis, the spectrophotometric and ion chromatographic methods remain the most frequently used. Other methods discussed are based on capillary electrophoresis, inductively coupled plasma coupled to atomic emission spectrometry, electrochemical, and nuclear magnetic resonance techniques. The simultaneous analysis of various phosphorus species was possible by coupling chromatographic separations with mass spectrometry, using either electrospray or inductively coupled plasma ionization.

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The importance of dissolved organic phosphorus to phosphorus uptake by limnetic plankton

Cited by 78 publications

References 25 publications

Phototrophic periphyton techniques combine phosphorous removal and recovery for sustainable salt-soil zone

Phototrophic periphyton techniques combine phosphorous removal and recovery for sustainable salt-soil zone

The Behavior of Organic Phosphorus Under Non-Point Source Wastewater in the Presence of Phototrophic Periphyton

Analysis of Phosphorus Species in Water

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