In situ bioremediation of surface waters by periphytons

Wu, Yonghong; Xia, Lizhong; Yu, Zhiqiang; Shabbir, Sadaf; Kerr, Philip G.

doi:10.1016/j.biortech.2013.10.088

Cited by 121 publications

(47 citation statements)

References 71 publications

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“…A new bioremediation approach is to use the consortia of attached microalgae and bacteria, which are ubiquitous at solid surfaces including plants, sediments and stones in surface water (Larned, 2010;Wu et al, 2014;Renuka et al, 2015). Microalgae have the ability to assimilate inorganic nitrogen and phosphorus down to very low concentrations (e.g., less than 0.5 and 0.03 mg L À1 for TN and TP, respectively) (Boelee et al, 2011;Renuka et al, 2013;Liu and Vyverman, 2015), while bacteria can remove nutrients via assimilation, anaerobic ammonia oxidation, nitrification and denitrification for nitrogen (Yao et al, 2013;Fitzgerald et al, 2015) and regular and luxury uptake of phosphorus (Schmidt et al, 2016).…”

Section: Conventional Technologies Disadvantages Referencesmentioning

confidence: 99%

Advanced nutrient removal from surface water by a consortium of attached microalgae and bacteria: A review

Liu

et al. 2017

Bioresource Technology

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270

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Section: Conventional Technologies Disadvantages Referencesmentioning

confidence: 99%

Advanced nutrient removal from surface water by a consortium of attached microalgae and bacteria: A review

Liu

et al. 2017

Bioresource Technology

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270

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“…Wu reviewed that the mechanisms might be responsible for contaminant removal included uptake, adsorption and biodegradation (Wu et al, 2014). However, the detailed removal mechanism of P, especially of P o , in the presence of phototrophic periphyton is still in dispute.…”

Section: Introductionmentioning

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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“…Periphyton has been demonstrated as an integrated and independent interface between floodwater and soil (or sediments) in shallow waters (Azim 2009;Wu et al 2014). Studies indicated that periphyton plays important roles in P biogeochemistry in aquatic ecosystems because of its high affinity for P (McCormick et al 2006).…”

Section: Discussionmentioning

confidence: 99%

“…As is well known, periphyton is the micro-floral community attaching to substrates underwater such as submerged plants or plant parts, rocks, and sediments (Larned 2010). The components of periphyton include algae, bacteria, protozoa, metazoans, epiphytes, and detritus (Wu et al 2014). It is ubiquitous in aquatic environments, especially in shallow aquatic ecosystems such as paddy fields.…”

Section: Introductionmentioning

confidence: 99%

Periphyton: an important regulator in optimizing soil phosphorus bioavailability in paddy fields

Liu

et al. 2016

Environ Sci Pollut Res

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Periphyton is ubiquitous in paddy field, but its importance in influencing the bioavailability of phosphorus (P) in paddy soil has been rarely recognized. A paddy field was simulated in a greenhouse to investigate how periphyton influences P bioavailability in paddy soil. Results showed that periphyton colonizing on paddy soil greatly reduced P content in paddy floodwater but increased P bioavailability of paddy soil. Specifically, all the contents of water-soluble P (WSP), readily desorbable P (RDP), algal-available P (AAP), and NaHCO 3 -extractable P (Olsen-P) in paddy soil increased to an extent compared to the control (without periphyton) after fertilization. In particular, Olsen-P was the most increased P species, up to 216 mg kg −1 after fertilization, accounting for nearly 60 % of total phosphorus (TP) in soil. The paddy periphyton captured P up to 1.4 mg g −1 with Ca-P as the dominant P fraction and can be a potential crop fertilizer. These findings indicated that the presence of periphyton in paddy field benefited in improving P bioavailability for crops. This study provides valuable insights into the roles of periphyton in P bioavailability and migration in a paddy ecosystem and technical support for P regulation.

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In situ bioremediation of surface waters by periphytons

Cited by 121 publications

References 71 publications

Advanced nutrient removal from surface water by a consortium of attached microalgae and bacteria: A review

Advanced nutrient removal from surface water by a consortium of attached microalgae and bacteria: A review

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

Periphyton: an important regulator in optimizing soil phosphorus bioavailability in paddy fields

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