The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China

Pei, Guofeng; Qing, Wang; Liu, Guoxiang

doi:10.1016/j.aquabot.2015.04.005

Cited by 26 publications

(9 citation statements)

References 39 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Labile-P, Fe/Al-P and Ca-P were significant increased from about 4 0.1, 0.9, 1.0 mg g −1 to 7.7 and 7.8, 1.5 and 1.6, 2.9 and 3.5 mg g −1 respectively at the end of 48 h (P b 0.05). Previous study indicated that Fe/Al-P and Ca-P was the dominant fraction of periphyton in different lakes, which constituted about 75% of the periphyton TP (Pei et al, 2015). This is different with our results.…”

Section: Metal Content (Mg Lcontrasting

confidence: 99%

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

Feng

et al. 2016

Science of The Total Environment

View full text Add to dashboard Cite

• 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...

show abstract

Section: Metal Content (Mg Lcontrasting

confidence: 99%

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

Feng

et al. 2016

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…Phosphate is an essential nutrient that is known to be primarily responsible for eutrophication, because excessive utilization of phosphate resources for chemical fertilizer production and widespread runoff from agricultural applications have increased the phosphate levels in surface waterbodies. This has become major problematic issue around the word especially in United State and China (Conley et al, 2009;Pei et al, 2015). As low as 0.02 mg/L phosphate would lead to uncontrolled growth of algae, which causes the reduced water oxygen content and the production of toxins particularly in shallow lakes, estuarine and coastal marine regions, leading to fish kills and harm to wildlife (Conley et al, 2009;Pei et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…This has become major problematic issue around the word especially in United State and China (Conley et al, 2009;Pei et al, 2015). As low as 0.02 mg/L phosphate would lead to uncontrolled growth of algae, which causes the reduced water oxygen content and the production of toxins particularly in shallow lakes, estuarine and coastal marine regions, leading to fish kills and harm to wildlife (Conley et al, 2009;Pei et al, 2015). On the other hand, while being the most important incentive element of the problem, phosphorus (P) reserves in nature are limited.…”

Section: Introductionmentioning

confidence: 99%

Recovery of phosphate from aqueous solution by magnesium oxide decorated magnetic biochar and its potential as phosphate-based fertilizer substitute

Wang

Zhou

et al. 2016

Bioresource Technology

331

View full text Add to dashboard Cite

The present study deals with the preparation of a novel MgO-impregnated magnetic biochar (MMSB) for phosphate recovery from aqueous solution. The MMSB was evaluated against sugarcane harvest residue biochar (SB) and magnetic biochar without Mg (MSB). The results showed that increasing Mg content in MMSB greatly improved the phosphate adsorption compared to SB and MSB, with 20% Mg-impregnated MMSB (20MMSB) recovering more than 99.5% phosphate from aqueous solution. Phosphate adsorption capacity of 20MMSB was 121.25mgP/g at pH 4 and only 37.53% of recovered phosphate was desorbed by 0.01mol/L HCl solutions. XRD and FTIR analysis showed that phosphate sorption mechanisms involved predominately with surface electrostatic attraction and precipitation with impregnated MgO and surface inner-sphere complexation with Fe oxide. The 20MMSB exhibited both maximum phosphate sorption and strong magnetic separation ability. Overall, phosphate-loaded 20MMSB significantly enhanced plant growth and could be used as a potential substitute for phosphate-based fertilizer.

show abstract

“…Moreover, periphyton can cause super-saturated O 2 concentrations near the soil surface through photosynthesis, which encourages deposition of metal phosphates (Dodds, 2003). Pei et al (2015) indicated that abiotic accumulation of Ca-P and Fe/Al-P constituted approximately 75% of the total periphyton P in different lakes. Lu et al (2016b) also reported that N90% of P removal by the periphyton from wastewater was contributed by Ca-phosphate precipitation and adsorption of phosphate onto CaCO 3 .…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

Deng

Hesterberg

et al. 2017

Science of The Total Environment

View full text Add to dashboard Cite

The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China

Cited by 26 publications

References 39 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

Recovery of phosphate from aqueous solution by magnesium oxide decorated magnetic biochar and its potential as phosphate-based fertilizer substitute

Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

Contact Info

Product

Resources

About