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Sun F, Zhan Y, Lin J. Effect of capping mode on control of phosphorus release from sediment by lanthanum hydroxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-28102-x. [PMID: 37280493 DOI: 10.1007/s11356-023-28102-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/31/2023] [Indexed: 06/08/2023]
Abstract
The use of in situ active capping to control phosphorus release from sediment has attracted more and more attentions in recent years. It is important to identify the effect of capping mode on the control of phosphorus release from sediment by the in situ active capping method. In this study, the impact of capping mode on the restraint of phosphorus migration from sediment into overlying water (OW) by lanthanum hydroxide (LH) was studied. Under no suspended particulate matter (SPM) deposition condition, LH capping effectively restrained the liberation of endogenous phosphorus into OW during anoxia, and the inactivation of diffusive gradient in thin film-unstable phosphorus (UPDGT) and mobile phosphorus (PMobile) in the topmost sediment served as a significant role in the restraint of endogenous phosphorus migration into OW by LH capping. Under no SPM deposition, although the transformation of capping mode from the single high dose capping to the multiple smaller doses capping had a certain negative impact on the restraint efficiency of endogenous phosphorus liberation to OW by LH in the early period of application, it increased the stability of phosphorus in the static layer in the later period of application. Under SPM deposition condition, LH capping had the capability to mitigate the risk of endogenous phosphorus liberation into OW under anoxia conditions, and the inactivation of UPDGT and PMobile in the topmost sediment was a significant mechanism for the control of sediment phosphorus liberation into OW by LH capping. Under SPM deposition condition, the change in the covering mode from the one-time high dose covering to the multiple smaller doses covering decreased the efficiency of LH to limit the endogenous phosphorus transport into OW in the early period of application, but it increased the performance of LH to restrain the sedimentary P liberation during the later period of application. The results of this work suggest that the multiple LH capping is a promising approach for controlling the internal phosphorus loading in freshwater bodies where SPM deposition often occurs in the long run.
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Affiliation(s)
- Fujun Sun
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
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2
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Sun F, Chen Y, He L, Tang J, Li Y. Comparative study of sediment phosphorus immobilization via the addition of lanthanum-modified and thermal-modified drinking water treatment sludge. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27960-9. [PMID: 37270756 DOI: 10.1007/s11356-023-27960-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
Lanthanum-modified drinking water treatment sludge (DTSLa) and thermal-modified drinking water treatment sludge (TDTS) were prepared from drinking water treatment sludge(DTS). The adsorption properties of DTSLa and TDTS on phosphate in water and the effects on the controlled release and morphology of phosphorus in sediment at different dosages (0%, 2.5%, 5%) were discussed. Combining with SEM, BET, XRD, FTIR, and XPS characterization methods, the immobilization mechanism of DTSLa and TDTS on phosphorus in sediment was explored. The addition of TDTS can transform NH4Cl-P (loosely sorbed P), BD-P (bicarbonate-dithionite extractable P), and Org-P (organic P) into stable NaOH-rP (metal oxide-bound P) in sediment, and the conversion amount will increase with the increase of TDTS supplemental amount. DTSLa converted NH4Cl-P, BD-P, Org-P, and NaOH-rP to more stable HCl-P (calcium-bound P). At the same time, the content of WSP (water-soluble phosphorus) and olsen-P (NaHCO3 extractable P) in sediment can be reduced by the addition of DTSLa and TDTS, reducing the risk of the release of phosphorus from the sediment to the overlying water. In addition, phosphorus can be directly removed from the interstitial water by DTSLa and TDTS, so as to reduce the phosphorus concentration gradient between the overlying water and the interstitial water, thus inhibiting the release of phosphorus from interstitial water to overlying water. The results showed that DTSLa is better than TDTS in terms of its adsorption capacity and adsorption effect on endogenous phosphorus in water, so DTSLa is more suitable to be used as a sediment conditioner to control the phosphorus content in water and sediment.
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Affiliation(s)
- Fei Sun
- School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
| | - Yu Chen
- School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China.
| | - Liwenze He
- School of Civil Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
| | - Jingxiang Tang
- School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
| | - Yanjun Li
- School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
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3
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Zhan Y, Qiu B, Lin J. Effect of common ions aging treatment on adsorption of phosphate onto and control of phosphorus release from sediment by lanthanum-modified bentonite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 341:118109. [PMID: 37172347 DOI: 10.1016/j.jenvman.2023.118109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/21/2023] [Accepted: 05/04/2023] [Indexed: 05/14/2023]
Abstract
The objective of this work was to explore the influence of combined aging treatment using Na+, Ca2+, Cl-, HCO3- and SO42- on the adsorption of phosphate (HiPO4i-3) onto and the restraint of internal phosphorus (P) migration into overlying water (OW) by lanthanum modified bentonite (LMB). To achieve this aim, the adsorption characteristics and mechanisms of HiPO4i-3 onto the raw and aged LMBs (named as R-LMB and A-LMB, respectively) were comparatively studied, and the effects of R-LMB and A-LMB treatments (addition and capping) on the migration of P from sediment to OW were comparatively investigated. The results showed that the combined aging treatment of R-LMB with Na+, Ca2+, Cl-, HCO3- and SO42- inhibited the adsorption of HiPO4i-3. Similar to R-LMB, the precipitation of HiPO4i-3 with La3+ to form LaPO4 and the ligand exchange between CO32- and HiPO4i-3 to form the inner-sphere lanthanum-phosphate complexes are the important mechanisms for the HiPO4i-3 uptake by A-LMB. The R-LMB addition and capping can be effective in the suppression of endogenous P release to OW under hypoxia conditions. The inactivation of diffusive gradient in thin film-unstable P (DGT-UP) and potentially mobile P (PM-P) in sediment acted as a key role in the restraint of internal P release to OW by the R-LMB addition, and the immobilization of DGT-UP and PM-P in the topmost sediment played a key role in the interception of endogenous P migration into OW by the R-LMB capping. Although the Na+/Ca2+/Cl-/HCO3-/SO42- combined aging treatment had a certain negative effect on the efficiencies of LMB addition and capping to hinder the liberation of P from sediment into OW, the A-LMB addition and capping still can be effective in the control of sediment internal phosphorus pollution to a certain degree. The results of this work indicate that LMB has a high potential to be used as a capping/amendment material to control internal phosphorus pollution.
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Affiliation(s)
- Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Bo Qiu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
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4
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Lu Y, Lin J, Wu X, Zhan Y. Control of phosphorus release from sediment by hydrous zirconium oxide combined with calcite, bentonite and zeolite. CHEMOSPHERE 2023; 332:138892. [PMID: 37169085 DOI: 10.1016/j.chemosphere.2023.138892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/20/2023] [Accepted: 05/07/2023] [Indexed: 05/13/2023]
Abstract
This study investigated the effectiveness and mechanism for the control of internal phosphorus (P) liberation from sediment by hydrous zirconium oxide (HZrO2) combined with calcite, bentonite and zeolite. The results suggested that coexisting calcite, calcium-modified bentonite (CaBT) and calcium-modified zeolite (CaZ) all had the ability to promote the adsorption of phosphate (PO43-) onto HZrO2. The mechanisms of PO43- elimination by HZrO2/calcite mixture involved the adsorption of PO43- on calcite, the precipitation of PO43- with Ca2+, and the inner-sphere complexation of PO43- with HZrO2. The amendment of sediment with HZrO2/calcite, HZrO2/CaBT or HZrO2/CaZ mixture can effectively prevent the sedimentary P release, and the immobilization of mobile P in the sediment and the uptake of dissolved reactive P (DRP) from the interstitial water by the amendment material played a key role in the control of P release from sediment by the combined amendment. Capping sediment with HZrO2/calcite, HZrO2/CaBT or HZrO2/CaZ mixture also can effectively intercept sediment P release, and the formation of P static layer attributed to the uptake of interstitial water DRP and DGT (diffusive gradient in thin-films)-unstable P in the upper sediment by the capping material was a key to the inhibition of sedimentary P migration into the overlying water by the combined capping. The great majority of P immobilized by the HZrO2/calcite, HZrO2/CaBT or HZrO2/CaZ combined covering layer is stable P and it has a low re-releasing risk under dissolved oxygen-deficit and pH 5-9 condition. The stability of P bound by the combined covering layer was larger than that by the single HZrO2 covering layer. The results of this research show that the combined use of HZrO2 and calcite, HZrO2 and CaBT, or HZrO2 and CaZ as a capping material has great potential in the reduction of sediment P loading.
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Affiliation(s)
- Yuqian Lu
- College of Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jianwei Lin
- College of Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
| | - Xugan Wu
- College of Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
| | - Yanhui Zhan
- College of Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
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5
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Kuster AC, Huser BJ, Thongdamrongtham S, Patra S, Padungthon S, Kuster AT. A model for predicting reduction in mobile phosphorus of lake sediment by aluminum drinking water treatment residuals. WATER RESEARCH 2023; 232:119677. [PMID: 36738559 DOI: 10.1016/j.watres.2023.119677] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/02/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Drinking water treatment residual (DWTR) derived from flocculation and sedimentation of raw water using aluminum coagulants is a valuable environmental remediation byproduct capable of inactivating phosphorus (P). However, no generalizable model exists in the literature to describe reduction of releasable (mobile) P in lake sediment as a result of DWTR addition. The reduction of mobile P (sum of labile P and reductant soluble P) was investigated in over 100 sub-samples using five sediment samples from two lakes and three DWTRs from different water treatment plants. A consistent relationship was determined across a range of mobile P contents (0.23 g/m2/cm to 0.92 g/m2/cm, or 15.8 to 186.1 µg/g DW) and DWTRs. The relationship was best described as a function of the mobile P content of the sediment and the oxalate-extractable aluminum content of the DWTR. An empirical model was developed to predict the immediate reduction in mobile P following the addition of DWTR containing aluminum. This model was validated using two additional lake sediments and one additional DWTR (R² = 0.995). Thus, the immediate inactivation of P in lake sediment following DWTR addition can be predicted with this model, which can be used with internal P loading or other water quality goals to determine an appropriate DWTR dose. Further recommendations were made about dosing DWTRs for lake restoration, allowing practitioners to use DWTR to inactivate P in lake sediment without conducting individual sorption experiments.
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Affiliation(s)
- Anthony C Kuster
- Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - Brian J Huser
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | | | - Santanu Patra
- Environmental Engineering Program, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - Surapol Padungthon
- Environmental Engineering Program, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand.
| | - Anootnara T Kuster
- Department of Environmental Health and Occupational Health and Safety, Khon Kaen University, Khon Kaen, Thailand
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Zhang F, Yan J, Fang J, Yan Y, Zhang S, Benoit G. Sediment phosphorus immobilization with the addition of calcium/aluminum and lanthanum/calcium/aluminum composite materials under wide ranges of pH and redox conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160997. [PMID: 36535477 DOI: 10.1016/j.scitotenv.2022.160997] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Aquatic environment factors often influence and regulate the direction of phosphorus (P) flow at the sediment-water interface (SWI). High pH and low DO, common in eutrophic lakes, would induce large releases of P from sediment, and thus cause the negative effect on the efficiency of some P-passivators. Hence, the development of P passivators that could function over a wide range of pH condition and redox state in the overlaying water with reduced undesirable side effects is critical for the eutrophic lake remediation. In the present study, a calcium (Ca)/aluminum (Al) composite (CA) and a lanthanum (La)/Ca/Al composite (LCA) were prepared for P immobilization in lake sediments, using calcium and lanthanum coprecipitated with aluminum. CA and LCA were shown to have good P sorption performance at pH 4-11, particularly at pH 8-11. Furthermore, CA and LCA have an ability to correct the pH of water that deviates from neutral. The maximum P adsorption (Qmax) of sediment amended by 4 % CA and 4 % LCA increased by 83 % and 103 %, and their equilibrium P concentration (EPC0) decreased by 76 % and 88 %, respectively. Under various pH and DO conditions, the P concentration in overlying water was significantly decreased by CA and LCA amendment, and their addition could effectively counteract the P release from sediments induced by high pH and low DO. The mechanisms of P immobilization in amended sediments under various pH and DO levels are primarily the conversion of reactive P to stable P. The P immobilization performance of CA and LCA could cope with a wide range of pH and redox conditions in eutrophic lakes, and they would help to correct extreme pH values, thus they are expected to be a new generation of commercial P-passivators.
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Affiliation(s)
- Fengrui Zhang
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, Hubei 430074, China
| | - Jin Yan
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, Hubei 430074, China
| | - Jiangling Fang
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, Hubei 430074, China
| | - Yi Yan
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, Hubei 430074, China
| | - Shenghua Zhang
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central Minzu University, Wuhan, Hubei 430074, China.
| | - Gaboury Benoit
- School of Forestry & Environmental Studies, Yale University, New Haven, CT 06511, United States
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7
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Li Q, Liu L, He H, Yan W. Inhibition of sediment internal phosphorus release in agricultural drainage ditches by ceria nanoparticle capping. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:81789-81803. [PMID: 35739441 DOI: 10.1007/s11356-022-21389-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
In this study, ceria nanoparticles (CNPs) were introduced as an in-situ capping agent to inhibit the release of phosphorus (P) from sediments of agricultural drainage ditches. High-resolution dialysis (HR-Peeper) and diffusive gradients in thin film (DGT) techniques were used to measure the concentrations of P and iron (Fe) in the overlying water and sediments. The results showed that the CNP capping not only decreased the soluble reactive P (SRP) in the overlying water by 55.36% but also decreased the SRP in the pore water by 30.06%. More importantly, after the CNP capping, the flux of SRP from the pore water to the overlying water decreased by 34.12%, indicating that CNP capping can effectively inhibit the release of P from sediments to the overlying water. In addition, 38.38% of DGT-labile P was immobilized using CNP capping. Furthermore, the results of P speciation showed that CNP capping led to the change of P species from easily released NH4Cl-extractable P (NH4Cl-P) and Na2S2O4/NaHCO3-extractable P (BD-P) to more stable HCl-extractable P (HCl-P) and residual P (Res-P). These results show that CNP capping can further decrease the release of P from sediments to the overlying water. The present study shows that CNP is a feasible and effective capping material to inhibit the release of P from sediments of agricultural drainage ditches.
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Affiliation(s)
- Qi Li
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Ling Liu
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.
| | - Huaijie He
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Wenming Yan
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China
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8
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Italiya G, Subramanian S. Role of emerging chitosan and zeolite-modified adsorbents in the removal of nitrate and phosphate from an aqueous medium: A comprehensive perspective. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2658-2684. [PMID: 36450679 DOI: 10.2166/wst.2022.366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Due to industrialization and population growth, freshwater supplies are diminishing and becoming impure with high organic pollutant concentrations such as nitrate and phosphate, which shows a high adverse impact on aquatic and human lives. In drinking water sources, particularly groundwater, nitrate is considered as one of the major pollutants which causes methemoglobinemia (in newborn infants), carcinogenic activities and diabetes. Excess concentration of phosphate leads to eutrophication and death of aquatic species due to reduced dissolved oxygen content. Therefore, all countries must implement highly effective technologies for treating wastewater. Chitosan and zeolite are naturally occurring and cost-effective adsorbent materials with a higher surface area that exhibit greater nitrate and phosphate adsorption. Surface modification of chitosan and zeolite increases the adsorption capacity of adsorbents for the removal of both anions selectively. This paper reviews the current development of modified chitosan and zeolite adsorbents for anion adsorption, with an emphasis on modification by zero and multivalent metals and metal oxides, different surfactants, biomass-derived carbon, and natural and synthetic polymers. Multiple adsorption parameters, optimum adsorption condition, adsorption mechanism, regeneration study, research gap and future aspects have been explained for further research work.
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Affiliation(s)
- Gopal Italiya
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India, 632014 E-mail:
| | - Sangeetha Subramanian
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India, 632014 E-mail:
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9
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Attanayake CP, Kumaragamage D, Amarawansha G, Hettiarachchi GM, Indraratne SP, Goltz DM. Phosphorus Release and Speciation in Manganese(IV) Oxide and Zeolite-Amended Flooded Soils. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8082-8093. [PMID: 35634990 DOI: 10.1021/acs.est.2c01185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Phosphorus (P) losses from flooded soils and subsequent transport to waterways contribute to eutrophication of surface waters. This study evaluated the effectiveness of MnO2 and a zeolite Y amendment in reducing P release from flooded soils and explored the underlying mechanisms controlling P release. Unamended and amended (MnO2 or zeolite, surface-amended at 5 Mg ha-1) soil monoliths from four clayey-alkaline soils were flooded at 22 ± 2 °C for 56 days. Soil redox potential and dissolved reactive P (DRP), pH, and concentrations of major cations and anions in porewater and floodwater were analyzed periodically. Soil P speciation was simulated using Visual MINTEQ at 1, 28, and 56 days after flooding (DAF) and P K-edge X-ray absorption near-edge structure spectroscopy and sequential fractionation at 56 DAF. Porewater DRP increased with DAF and correlated negatively with pe+pH and positively with dissolved Fe. Reductive dissolution of Fe-associated P was the dominant mechanism of flooding-induced P release. The MnO2 amendment reduced porewater DRP by 30%-50% by favoring calcium phosphates (Ca-P) precipitation and delaying the reductive dissolution reactions. In three soils, the zeolite amendment at some DAF increased porewater and/or floodwater DRP through dissolution of Ca-P and thus was not effective in reducing P release from flooded soils.
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Affiliation(s)
- Chammi P Attanayake
- Department of Environmental Studies and Sciences, The University of Winnipeg, Winnipeg, MB, Canada R3B 2E9
- Department of Soil Science, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Darshani Kumaragamage
- Department of Environmental Studies and Sciences, The University of Winnipeg, Winnipeg, MB, Canada R3B 2E9
| | - Geethani Amarawansha
- Department of Environmental Studies and Sciences, The University of Winnipeg, Winnipeg, MB, Canada R3B 2E9
| | - Ganga M Hettiarachchi
- Department of Agronomy, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, Kansas 66506, United States
| | - Srimathie P Indraratne
- Department of Environmental Studies and Sciences, The University of Winnipeg, Winnipeg, MB, Canada R3B 2E9
| | - Douglas M Goltz
- Department of Chemistry, The University of Winnipeg, Winnipeg, MB, Canada R3B 2E9
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10
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Das A, Mondal D, Panda B, Mondal S. Fabrication of alumina decorated graphene oxide nanocomposite for efficient removal of aqueous phosphate. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2078362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ajit Das
- Department of Chemistry, Balarampur College, Purulia, West Bengal, India
- Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, West Bengal, India
| | - Debasish Mondal
- Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, West Bengal, India
| | - Bholanath Panda
- Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, West Bengal, India
| | - Sourav Mondal
- Department of Chemistry, Sidho-Kanho-Birsha University, Purulia, West Bengal, India
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11
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Everaert M, Bergmans J, Broos K, Hermans B, Michielsen B. Granulation and calcination of alum sludge for the development of a phosphorus adsorbent: From lab scale to pilot scale. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111525. [PMID: 33168303 DOI: 10.1016/j.jenvman.2020.111525] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Alum sludge, an Al-oxyhydroxide rich waste product from water treatment practices, has the potential to be valorized as a P adsorbent material. However, several challenges currently prevent its application as an adsorbent in industrial setting, i.e. a limited P adsorption capacity due to saturation by organic matter and a fine nature resulting in percolation problems in adsorption bed setups. In this study, granulation and subsequent calcination of alum sludge were proposed to overcome these issues and to improve the P adsorption properties of alum-based adsorbent (ABA) materials. The effect of calcination temperature on the physicochemical properties of granular material was examined using X-ray diffraction, mass-spectroscopy coupled thermogravimetric analysis, Fourier-transform infrared spectrometry and specific surface area analysis, combined with density and crushing strength measurements. The ABA material obtained at 550 °C showed superior P adsorption properties and, therefore, this material was selected for further P adsorption testing and characterization (scanning electron microscopy and sieving). Batch P adsorption tests showed that this material had a maximum P adsorption capacity of 7.27 mg-P g-1. Kinetic adsorption tests determined the effect of the solid-to-liquid ratio and the granule particle size on the P removal. Finally, the performance of the ABA-550 material was tested in a pilot-scale adsorption setup, using a surface water stream (0.47 mg-P L-1) at a flow rate of 200 L h-1. During the test, the P removal efficiency always exceeded 86%, while the material maintained its structural stability. The results of this study illustrate the potential of granulated/calcined ABA materials for P adsorption, paving the way for the industrial application of this novel, sustainable P removal technology.
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Affiliation(s)
- Maarten Everaert
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium.
| | - Jef Bergmans
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium
| | - Kris Broos
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium
| | | | - Bart Michielsen
- Unit Sustainable Materials Management, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium
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12
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Zhan Y, Chang M, Lin J. Suppression of phosphorus release from sediment using lanthanum carbonate as amendment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:3280-3295. [PMID: 32914304 DOI: 10.1007/s11356-020-10714-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
The performance of lanthanum carbonate (LC) pertaining to the adsorption of phosphate (HwPO4w-3) was investigated, and the possible adsorption mechanism was elucidated. The stabilization of HwPO4w-3 adsorbed to LC was evaluated. The influence of LC addition on the upward transport of phosphorus (P) from sediment to overlying water (OL-W) was studied, and the adsorption performance of HwPO4w-3 on the LC-amended sediment was explored. The results of this work indicated that LC performed well in the elimination of HwPO4w-3 from water in the pH range of 4 to 11, and the commercial and self-prepared LC samples afforded the maximum HwPO4w-3 adsorption capacities of 57.9 and 99.4 mg P/g, respectively, at pH 7. The presence of coexisting species including chloride, bicarbonate, and sulfate had a small influence on the HwPO4w-3 adsorption onto LC. The main HwPO4w-3 adsorption mechanism of LC at pH 7 was the ligand exchange reaction between carbonate and HwPO4w-3 forming the inner-sphere La-phosphate complexation. The self-synthesized LC exhibited much higher HwPO4w-3 adsorption performance than the commercial LC. The overwhelming majority (> 97.0%) of HwPO4w-3 adsorbed to LC primarily existed in the form of muriatic acid-extractable P, which has relatively low re-releasing risk. The addition of LC into sediment could significantly prevent the release of P from the sediment solid into the OL-W, thereby leading to a lower concentration level of reactive soluble P (RSP) in the OL-W compared with no LC treatment. The addition of LC into sediment could greatly improve the HwPO4w-3 uptake ability for the sediment, and the enhancement of HwPO4w-3 adsorption onto the sediment by the added LC increased as the increase of the amendment dosage and the initial HwPO4w-3 concentration. All results suggest that LC could serve as a promising amendment material for the control of sedimentary P release.
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Affiliation(s)
- Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Hucheng Ring Road No. 999, Shanghai, 201306, China
| | - Mingyue Chang
- College of Marine Ecology and Environment, Shanghai Ocean University, Hucheng Ring Road No. 999, Shanghai, 201306, China
| | - Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Hucheng Ring Road No. 999, Shanghai, 201306, China.
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Lin J, Zhao Y, Zhan Y, Wang Y. Control of internal phosphorus release from sediments using magnetic lanthanum/iron-modified bentonite as active capping material. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114809. [PMID: 32559883 DOI: 10.1016/j.envpol.2020.114809] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 05/24/2023]
Abstract
The non-magnetic capping materials are difficult to be recycled from the water bodies after their application, leading to the increase in the cost of the sediment remediation. To address this issue, a capping material, i.e., magnetic lanthanum/iron-modified bentonite (M-LaFeBT) was prepared by loading lanthanum onto a magnetic iron-modified bentonite (M-FeBT) and used to control the internal phosphorus (P) loading in this study. To determine the capping efficiency and mechanism of M-LaFeBT, the impact of M-LaFeBT and M-FeBT capping on the mobilization of P in sediments was investigated, and the stabilization of P bound by the M-LaFeBT and M-FeBT capping layers was evaluated. Results showed that M-LaFeBT possessed good magnetic property with a saturated magnetization of 14.9 emu/g, and exhibited good phosphate adsorption ability with a maximum monolayer sorption capacity (QMAX) of 14.3 mg P/g at pH 7. Moreover, M-LaFeBT capping tremendously reduced the concentration of soluble reactive P (SR-P) in the overlying water (OL-water), and the reduction efficiencies were 94.7%-97.4%. Furthermore, M-LaFeBT capping significantly decreased the concentration of SR-P in the pore water and DGT (diffusive gradient in thin films)-labile P in the profile of OL-water and sediment. Additionally, most of P bound by the M-LaFeBT capping layer (approximately 77%) was stable under natural pH and reducing conditions. The phosphate adsorption ability for M-LaFeBT was much higher than that for M-FeBT, and the QMAX value for the former was 4.86 times higher than that for the latter. M-LaFeBT capping gave rise to a higher reduction of DGT-labile concentration in the profile of OL-water and sediment than M-FeBT capping. The P adsorbed by the M-LaFeBT capping layer was more stable than that by the M-FeBT capping layer. Results of this study demonstrate that M-LaFeBT is promising for utilization as an active capping material to intercept sedimentary P release into OL-water.
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Affiliation(s)
- Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
| | - Yuying Zhao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Yan Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
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Grela A, Łach M, Mikuła J. An Efficacy Assessment of Phosphate Removal from Drainage Waters by Modified Reactive Material. MATERIALS 2020; 13:ma13051190. [PMID: 32155873 PMCID: PMC7085026 DOI: 10.3390/ma13051190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/21/2020] [Accepted: 03/04/2020] [Indexed: 11/16/2022]
Abstract
Phosphates may pose a threat to the aquatic ecosystem when there is a connection or a path between the soil and the aquatic ecosystem. Runoff and drainage ditches connect arable land with the waters of the receiver. Phosphates in the runoff and the ditches contribute to the negative phenomenon of surface water eutrophication. In order to prevent it, certain reactive materials are used which are capable of the selective removal of compounds by way of sorption or precipitation. Zeolites can be distinguished among the many reactive materials. Within the present analysis, the modification of a reactive material containing zeolites was carried out using calcium hydroxide solutions of different concentrations. A certain concentration of calcium hydroxide was created for use in further studies. In order to characterise the new material, an analysis was done of the chemical and mineral composition, as well as the porous texture and morphology. The efficacy of phosphate removal for its typical concentrations in drainage waters in Poland was confirmed by way of an experiment. Using a modified reactive material as an element of landscape structures may reduce the negative impact of phosphates on the quality of surface water.
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Affiliation(s)
- Agnieszka Grela
- Faculty of Environmental and Power Engineering, Cracow University of Technology, 31-155 Kraków, Poland
- Correspondence: ; Tel.: +48-126283133
| | - Michał Łach
- Faculty of Materials Engineering and Physics, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland; (M.Ł.); (J.M.)
| | - Janusz Mikuła
- Faculty of Materials Engineering and Physics, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland; (M.Ł.); (J.M.)
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Lin J, He S, Zhan Y, Zhang H. Evaluation of phosphate adsorption on zirconium/magnesium-modified bentonite. ENVIRONMENTAL TECHNOLOGY 2020; 41:586-602. [PMID: 30052137 DOI: 10.1080/09593330.2018.1505966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
In this work, a zirconium/magnesium-modified bentonite (ZrMgBT) was prepared and characterized by SEM, EDS, XRD and pHPZC. The performance and mechanism of phosphate adsorption onto ZrMgBT was evaluated in detail using batch experiments and 31P NMR. Results showed the adsorption isotherm data were well described by the Langmuir, Freundlich and Dubinin-Radushkevich models, and the kinetic data fitted better to the pseudo-second-order kinetic model than the pseudo-first-order kinetic model. The phosphate adsorption capacity of ZrMgBT was slightly affected by the presence of Na+, K+, Cl-, [Formula: see text] and [Formula: see text], but it was enhanced by coexisting Mg2+ and [Formula: see text]. The mechanism for phosphate adsorption onto ZrMgBT at pH 7 was mainly the complexation reaction between phosphate and zirconium. In addition, ZrMgBT exhibited more excellent adherence to phosphate than zirconium-modified bentonite (ZrBT). Especially, the maximum monolayer phosphate adsorption capacity for ZrMgBT at pH 7 and 0.5 g/L of adsorbent dosage calculated based on the Langmuir isotherm model (13.0 mg P/g) was 67.5% higher than that for ZrBT. The higher phosphate adsorption capacity for ZrMgBT than ZrBT could be attributed to the higher specific surface area as well as higher Mg2+ releasing ability of the former. The enhancement of phosphate adsorption by the release of Mg2+ from ZrMgBT could be mainly due to the formation of [Formula: see text] in the solution firstly and then the adsorption of [Formula: see text] on ZrMgBT forming ≡Zr(OPO3H)Mg on the ZrMgBT surface. In general, we conclude that ZrMgBT is a more promising adsorbent for phosphate removal from aqueous solution than ZrBT.
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Affiliation(s)
- Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Siqi He
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Honghua Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, People's Republic of China
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Mitrogiannis D, Psychoyou M, Kornaros ME, Tsigkou K, Brulé M, Koukouzas N, Alexopoulos D, Palles D, Kamitsos E, Oikonomou G, Papoutsa A, Xydous S, Baziotis I. Calcium-modified clinoptilolite as a recovery medium of phosphate and potassium from anaerobically digested olive mill wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:2977-2991. [PMID: 31838691 DOI: 10.1007/s11356-019-07212-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Olive mill wastewater (OMW) is characterized as a high-strength effluent due to the high organic load, low biodegradability, and presence of phytotoxic compounds. Most of the OMW treatment methods proposed, including adsorption, focus mainly on the reduction of chemical oxygen demand and recovery of polyphenols. Adsorption studies aiming at nutrient removal from OMW are very limited. In the present work, Ca(OH)2-treated zeolite (CaT-Z) in a granular form was used for simultaneous recovery of phosphate (PO43-) and potassium (K+) ions from two samples of anaerobically digested OMW. Nutrient adsorption was investigated as a function of contact time, pH and dilution of OMW with deionized water. The lower removal efficiency of phosphorus (P) by CaT-Z was observed at higher dilution ratios consisted of 3.125-6.25% OMW-1 and 5% OMW-2. The maximum P removal was 73.9% in 25% OMW-1 and 85.9% in 10% OMW-2. Potassium removal, as the predominant cation of OMW samples, increased from 17.3 to 46.1% in OMW-1 and from 15.1 to 57.7% in OMW-2 with increasing dilution. The maximum experimental adsorption capacities were 15.8 mg K and 2.14 mg P per gram of CaT-Z. Five sequential treatments of 50% OMW-2 with fresh CaT-Z at each stage ensured a cumulative removal of 87.5% for P and 74.9% for K. Adsorption kinetics were faster for K than for P. The plant-available P was found to be the predominant fraction on the loaded CaT-Z. Electron Probe Micro-analysis confirmed the enhanced content of K and P on the loaded CaT-Z, whereas X-ray mapping revealed the co-distribution of Ca and P. This study demonstrates the potential usage of CaT-Z as an immobilization medium of P and K from anaerobically treated OMW.
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Affiliation(s)
- Dimitris Mitrogiannis
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece.
| | - Maria Psychoyou
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece
| | - Michael E Kornaros
- Laboratory of Biochemical Engineering & Environmental Technology, Department of Chemical Engineering, University of Patras, Rion, GR 26504, Patras, Greece
| | - Konstantina Tsigkou
- Laboratory of Biochemical Engineering & Environmental Technology, Department of Chemical Engineering, University of Patras, Rion, GR 26504, Patras, Greece
| | - Mathieu Brulé
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece
| | - Nikolaos Koukouzas
- Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 52 Egialias str., Maroussi, 15125, Athens, Greece
| | - Dimitris Alexopoulos
- Centre for Research and Technology Hellas (CERTH), Chemical Process and Energy Resources Institute (CPERI), 52 Egialias str., Maroussi, 15125, Athens, Greece
| | - Dimitrios Palles
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635, Athens, Greece
| | - Efstratios Kamitsos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635, Athens, Greece
| | - Georgios Oikonomou
- Institute of Geology and Mineral Exploration, Olympic Village Acharnae, 13677, Athens, Greece
| | - Angeliki Papoutsa
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece
| | - Stamatis Xydous
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece
| | - Ioannis Baziotis
- Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos, 11855, Athens, Greece
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17
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Li X, Huang L, Fang H, He G, Reible D, Wang C. Immobilization of phosphorus in sediments by nano zero-valent iron (nZVI) from the view of mineral composition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133695. [PMID: 31400671 DOI: 10.1016/j.scitotenv.2019.133695] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/28/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Immobilization of phosphorus (P) in sediments is essential for controlling eutrophication in natural waters. As sediment is a complex assemblages of minerals, it is necessary to explore the intrinsic mechanisms of immobilization from the view of mineral composition. In this study, nano zero-valent iron (nZVI) is used as an example to immobilize P in sediment from Tai Lake and minerals of quartz, hematite, potassium feldspar, illite, montmorillonite, calcite, and kaolin (i.e. the main components of natural sediment), to consider the role of mineral composition on P immobilization). Results show that the immobilization efficiency increases gradually with the increasing amount of adopted nZVI, until a maximum value of about 60% - 80% when 0.03-0.05 g/g of nZVI is added. Particularly, the maximum P immobilization efficiency is the highest for hematite (about 86%) due to the chemical reaction between hematite and P that inhibiting P release, followed by quartz, illite, montmorillonite, and kaolin (about 64% - 72%) which only physically adsorb P. However, the maximum P immobilization efficiency of nZVI is only 31% and 17% for potassium feldspar and calcite, respectively, due to their relatively high pH values that reducing the formation of iron (Fe)-P precipitation and inhibiting P immobilization. Thus, the P immobilization is mainly due to the reaction between nZVI/mineral and P to form FeP precipitates, followed by physical adsorption; and the particle size, elemental composition (e.g. the calcium (Ca) in calcite and Fe in hematite) and pH value also affect the P immobilization efficiency. Moreover, based on the P immobilization efficiencies for various minerals, P immobilization in sediments can be reasonably predicted from the mineral composition through methods such as component additivity.
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Affiliation(s)
- Xiaocui Li
- State Key Laboratory of Hydro-science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
| | - Lei Huang
- State Key Laboratory of Hydro-science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China.
| | - Hongwei Fang
- State Key Laboratory of Hydro-science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China.
| | - Guojian He
- State Key Laboratory of Hydro-science and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
| | - Danny Reible
- Department of Civil & Environmental Engineering, Texas Tech University, Lubbock, TX 79409-1023, USA
| | - Changhui Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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Lin J, Zhao Y, Zhang Z, Zhan Y, Zhang Z, Wang Y, Yu Y, Wu X. Immobilization of mobile and bioavailable phosphorus in sediments using lanthanum hydroxide and magnetite/lanthanum hydroxide composite as amendments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 687:232-243. [PMID: 31207513 DOI: 10.1016/j.scitotenv.2019.06.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/02/2019] [Accepted: 06/03/2019] [Indexed: 06/09/2023]
Abstract
This work prepared lanthanum hydroxide (La-OH) and magnetite/lanthanum hydroxide composite (Mag-La-OH), and then La-OH and Mag-La-OH were used as sediment amendments to immobilize phosphorus (P) in sediments. The immobilization efficiency of mobile P (MobP) and bioavailable P (BIO-P) in sediments by La-OH and Mag-La-OH was investigated. Results showed that the addition of La-OH into sediment resulted in the transformation of loosely adsorbed P (LA-P) and redox sensitive P (RS-P) to sodium hydroxide extractable P (OH-P) and hydrochloride extractable P (HP) in the sediment, while the addition of Mag-La-OH into sediment led to the transformation of LA-P, RS-P and HP to OH-P and residual P (RESP) in the sediment. Both La-OH and Mag-La-OH can effectively immobilize Mob-P (LA-P + RS-P) in sediments, but La-OH had a higher Mob-P immobilization capacity than Mag-La-OH. The amendment of sediments with La-OH and Mag-La-OH both can reduce the amounts of different types of BIO-P including water soluble P (WA-P), algal available P (AL-P) and Fe oxide-paper extractable P (FE-P) in the sediments, and La-OH had a higher BIO-P immobilization capacity than Mag-La-OH. The immobilization of Mob-P in sediments by Mag-La-OH could be described by the equation: W = 0.333 × (∆Mob-P)-14.4, where ∆Mob-P (mg/kg) is the amount of Mob-P bounded in sediments and W (%) is the Mag-La-OH dosage. The immobilization of FE-P in sediments by Mag-La-OH could be described by the equation: W = 0.380 × (∆FE-P) + 1.14, where ∆FE-P is the amount of FE-P bounded in sediments. Considering that Mag-La-OH can be retrieved from the water bodies under the action of external magnetization fields after its application, Mag-La-OH could have high potential to be used as an amendment for the immobilization of Mob-P and BIO-P in sediments.
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Affiliation(s)
- Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China.
| | - Yuying Zhao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Zhibin Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China.
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Zhe Zhang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Yan Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Yang Yu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Xiaolong Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
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Li X, Xie Q, Chen S, Xing M, Guan T, Wu D. Inactivation of phosphorus in the sediment of the Lake Taihu by lanthanum modified zeolite using laboratory studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 247:9-17. [PMID: 30648618 DOI: 10.1016/j.envpol.2019.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 01/03/2019] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Release of phosphorus (P) from sediment to overlying water has to be dealt with to address algal blooms in eutrophic lakes. In this study, the sediment from the Lake Taihu was amended with lanthanum modified zeolite (LMZ) to reduce P release under different pH, temperature and anaerobic conditions. LMZ performed well, to decreasing P concentration in Lake Taihu water in the presence of sediment. The EPC0 value, the critical P concentration at which there was neither P adsorption nor P release, was lowered by adding LMZ, suggesting that amendment with LMZ could diminish the risk of P release from the sediment. From the Langmuir isotherm model, the adsorption capacity of phosphate by LMZ was estimated to be 64.1 mgP/g. The LMZ-amended sediment had a higher content of stable P forms (HCl-P and Res-P) and a lower content of P forms with a high (NH4Cl-P and BD-P) or medium-high (NaOH-P and Org-P) risk of release, when compared with the original sediment. The fractionation simulates conditions which release potentially mobile P which can then be simply re-bound to LMZ. At high pH (>9.0), anaerobic condition or high temperature promoted the liberation of P from sediment. However, P release could be greatly inhibited by LMZ. In addition, although Mn2+ and NH4+ ions were released from sediment under the anaerobic condition, the release could also be hindered by adding LMZ. LMZ is a promising P inactivation agent to manage eutrophication in the sediment of Lake Taihu.
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Affiliation(s)
- Xiaodi Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai, 200240, China
| | - Qiang Xie
- School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, China.
| | - Shouhui Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, China
| | - Mingchao Xing
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai, 200240, China
| | - Tong Guan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai, 200240, China
| | - Deyi Wu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai, 200240, China.
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Lin J, He S, Zhan Y, Zhang Z, Wu X, Yu Y, Zhao Y, Wang Y. Assessment of sediment capping with zirconium-modified bentonite to intercept phosphorus release from sediments. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:3501-3516. [PMID: 30519911 DOI: 10.1007/s11356-018-3869-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
Three different types of zirconium-modified bentonites (ZrMBs) including zirconium-modified original bentonite (ZrMOB), zirconium-modified magnesium-pretreated bentonite (ZrMMgB), and zirconium-modified calcium-pretreated bentonite (ZrMCaB) were synthesized and used as active covering materials to suppress the release of phosphorus (P) from sediments. To assess the covering efficiency of ZrMBs to inhibit P release from sediments, we examined the impact of ZrMB covering layer on P mobilization in sediments at different depths as well as the release of P through the interface between sediment and overlying water (SWI) by use of simulating P release control experiments and diffusive gradients in thin films (DGT) technology. The results showed that the amount of soluble reactive P (SRP) in the overlying water greatly decreased after covering with ZrMBs. Moreover, both pore water SRP and DGT-liable P (DGT-P) in the top sediments decreased after capping with ZrMBs. An obvious stratification of DGT-P was observed along the vertical direction after covering with ZrMBs, and static and active layers were found in the top sediment and in the lower sediment directly below the static layer, respectively. Furthermore, ZrMB covering led to the change of P species from easily released P to relatively or very stable P, making P in the top sediment more stable compared to that without ZrMB covering. Besides, an overwhelming majority of P immobilized by ZrMBs is hard to be re-released into the water column in a common environment. Overall, the above results demonstrate that sediment covering with ZrMBs could effectively prevent the transport of SRP from sediments into the overlying water through the SWI, and the control of P transport into the overlying water by ZrMB covering could be mostly due to the immobilization of pore water SRP, DGT-P, and mobile P in the top sediment by ZrMBs.
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Affiliation(s)
- Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China.
| | - Siqi He
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Zhe Zhang
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Xiaolong Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Yang Yu
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Yuying Zhao
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
| | - Yan Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, No. 999 Hucheng Huan Road, Pudong District, Shanghai, 201306, China
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21
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Liu W, Zhang L, Zhang J, Liu X, Huang W, Huang D, Zheng Z. Effects of modified sediments from a eutrophic lake in removing phosphorus and inhibiting phosphatase activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:1723-1732. [PMID: 30448953 DOI: 10.1007/s11356-018-3754-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Phosphorus is one of the main limiting and strong influencing factors of eutrophication, and phosphorus controlling in lake is of great significance for eutrophication. To do this, sediment materials were taken from Dianchi Lake, a typically eutrophic lake, and modified by hexadecyltrimethylammonium bromide (CTAB) and ZnSO4 to remove phosphorus and inhibit alkaline phosphatase activity (APA). Results indicated that phosphorus removal efficiencies of sediments modified by CTAB (S-CTAB), ZnSO4 (S-Zn), and oxidized sediments (OS) were higher than that of the raw sediment (RS). Ability to absorb phosphorus varied, following the order S-Zn>S-CTAB>OS>RS. Sorption was influenced by ionic strength, with the former decreasing with the increase of the latter. Freundlich model well described the sorption isotherm, with an R2 ranging from 0.9168 to 0.9958. Furthermore, compared with the raw sediments, the maximum phosphorus sorption capacities of S-Zn and S-CTAB increased by 12.2% and 124.5%, respectively. Results of desorption studies suggest that the desorption rate of S-Zn was from 3.88 to 13.76%, lower than that of other sediment materials. APA was inhibited by S-CTAB and S-Zn at the same time, with inhibition rates from 29.6% and 61.0% when the concentrations of S-CTAB and S-Zn were 10 nmol L-1 and 0.2 nmol L-1, respectively. This study provides new insights into phosphorus removal and phosphatase activity inhibition in water treatment.
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Affiliation(s)
- Wenli Liu
- Department of Environmental Science and Engineering, Fudan University, Shanghai, China
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Liangjie Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, China
| | - Jibiao Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, China.
| | - Xing Liu
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Wei Huang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, China
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Deying Huang
- Department of Chemistry, Fudan University, Shanghai, China.
| | - Zheng Zheng
- Department of Environmental Science and Engineering, Fudan University, Shanghai, China
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22
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Lin J, He S, Zhang H, Zhan Y, Zhang Z. Effect of zirconium-modified zeolite addition on phosphorus mobilization in sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:144-157. [PMID: 30055484 DOI: 10.1016/j.scitotenv.2018.07.281] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
There is generally a significant heterogeneity in the vertical distribution of mobile phosphorus (P) in sediments, but the previous studies concerning the effect of zirconium-modified zeolite (ZrMZ) addition on the mobilization of P in sediments neglected this feature. In this study, microcosm experiments were conducted to investigate the effect of ZrMZ addition on the mobilization of P in river surface sediments at different depths. A high-resolution diffusive gradients in thin films technology (DGT) was used to measure the concentration of labile P in the overlying water-sediment profiles at a submillimeter vertical resolution. Results showed that the ZrMZ amendment not only could reduce the concentration of soluble reactive P (SRP) in the overlying water, but also could decrease the concentrations of SRP in the pore water at different depths. Furthermore, the ZrMZ amendment resulted in the reduction of both the releasing flux of SRP from sediments to the overlying water and the diffusion flux of SRP from the pore water to the overlying water. After the addition of ZrMZ into the top sediment, the static layer with low DGT-liable P (DGT-P) concentration was observed in the upper sediment. The addition of ZrMZ into the upper sediment resulted in the reduction of mobile P (Pm) in the upper and lower sediments via the transformation of Pm to more stable NaOH-extractable P (NaOH-rP) and residual P (Res-P). In addition, the contents of bioavailable P (BAP) including water-soluble P (WSP), readily desorbable P (RDP) and iron oxide paper extractable P (FeO-P) in the upper sediment were greatly reduced by the ZrMZ addition. Results of this study show that the immobilization of pore water SRP, DGT-P, sediment Pm and sediment BAP by ZrMZ played a very important role in the control of P release from sediments to the overlying water by the ZrMZ amendment.
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Affiliation(s)
- Jianwei Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China.
| | - Siqi He
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Honghua Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yanhui Zhan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Zhibin Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
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23
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Zhu J, Li M, Whelan M. Phosphorus activators contribute to legacy phosphorus availability in agricultural soils: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:522-537. [PMID: 28865270 DOI: 10.1016/j.scitotenv.2017.08.095] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 06/07/2023]
Abstract
Phosphorus (P) is one of the most limiting macronutrients for crop productivity and P deficiency is a common phenomenon in agricultural soils worldwide. Despite long-term application of phosphate fertilizers to increase crop yields, P availability is often low, due to the high affinity of phosphate for the soil solid phase. It has been suggested that the accumulated (surplus) P in agricultural soils is sufficient to sustain crop yields worldwide for about 100years. In this paper, we try to clear up the potential for making use of legacy P in soils for crop growth potentially alleviating the global P resource shortage. Specifically, we try to clear up the potential of soil "P activators" for releasing fixed P. P activators accelerate and strengthen process which transform P into bio-available forms via a range of chemical reactions and biological interactions. They include phosphate solubilizing microorganisms, phosphatase enzymes and enzyme activators, low molecular weight organic acids, humic acids, lignin, crop residues, biochar and zeolites. Although reported performance is variable, there is growing evidence that P activators can promote the release of phosphate from soil and, hence, have potential for mitigating the impending global P crisis. Further basic and applied research is required to better understand the mechanisms of interaction of P activators with natural soils and to maximize activator efficacy.
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Affiliation(s)
- Jing Zhu
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Min Li
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China.
| | - Mick Whelan
- School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
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24
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He J, Su D, Lv S, Diao Z, Ye S, Zheng Z. Analysis of factors controlling sediment phosphorus flux potential of wetlands in Hulun Buir grassland by principal component and path analysis method. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:617. [PMID: 29119330 DOI: 10.1007/s10661-017-6312-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 10/20/2017] [Indexed: 06/07/2023]
Abstract
Phosphorus (P) flux potential can predict the trend of phosphorus release from wetland sediments to water and provide scientific parameters for further monitoring and management for phosphorus flux from wetland sediments to overlying water. Many studies have focused on factors affecting sediment P flux potential in sediment-water interface, but rarely on the relationship among these factors. In the present study, experiment on sediment P flux potential in sediment-water interface was conducted in six wetlands in Hulun Buir grassland, China and the relationships among sediment P flux potential in sediment-water interface, sediment physical properties, and sediment chemical characteristics were examined. Principal component analysis and path analysis were used to discuss these data in correlation coefficient, direct, and indirect effects on sediment P flux potential in sediment-water interface. Results indicated that the major factors affecting sediment P flux potential in sediment-water interface were amount of organophosphate-degradation bacterium in sediment, Ca-P content, and total phosphorus concentrations. The factors of direct influence sediment P flux potential were sediment Ca-P content, Olsen-P content, SOC content, and sediment Al-P content. The indirect influence sediment P flux potential in sediment-water interface was sediment Olsen-P content, sediment SOC content, sediment Ca-P content, and sediment Al-P content. And the standard multiple regression describing the relationship between sediment P flux potential in sediment-water interface and its major effect factors was Y = 5.849 - 1.025X 1 - 1.995X 2 + 0.188X 3 - 0.282X 4 (r = 0.9298, p < 0.01, n = 96), where Y is sediment P flux potential in sediment-water interface, X 1 is sediment Ca-P content, X 2 is sediment Olsen-P content, X 3 is sediment SOC content, and X 4 is sediment Al-P content. Therefore, future research will focus on these sediment properties to analyze the interrelation among sediment properties factors, main vegetable factors, and environment factors which influence the sediment P flux potential in sediment-water interface.
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Affiliation(s)
- Jing He
- Grassland Resources and Ecology Research Center, Beijing Forestry University, No.35, Qinghua East Road, Beijing, 100083, China
| | - Derong Su
- Grassland Resources and Ecology Research Center, Beijing Forestry University, No.35, Qinghua East Road, Beijing, 100083, China.
| | - Shihai Lv
- State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhaoyan Diao
- State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Shengxing Ye
- State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhirong Zheng
- State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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25
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26
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Lin J, Zhang Z, Zhan Y. Effect of humic acid preloading on phosphate adsorption onto zirconium-modified zeolite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:12195-12211. [PMID: 28353102 DOI: 10.1007/s11356-017-8873-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 03/20/2017] [Indexed: 06/06/2023]
Abstract
A zirconium-modified zeolite (ZrMZ) was prepared, and then, humic acid (HA) was immobilized on the ZrMZ surface to prepare HA-loaded ZrMZ (HA-ZrMZ). The obtained ZrMZ and HA-ZrMZ were characterized by energy dispersive X-ray spectroscopy, elemental analyzer, N2 adsorption/desorption isotherms, pH at the point of zero charge, and X-ray photoelectron spectroscopy. The adsorption characteristics of phosphate on ZrMZ and HA-ZrMZ were comparatively investigated in batch mode. The adsorption mechanism of phosphate on ZrMZ and HA-ZrMZ was investigated by ionic strength effect and 31P nuclear magnetic resonance. The mechanism for phosphate adsorption onto ZrMZ was the formation of inner-sphere phosphate complexes at the solid/solution interface. The preloading of HA on ZrMZ reduced the phosphate adsorption capacity, and the more the HA loading amount, the lower the phosphate adsorption capacity. However, the preloading of HA on ZrMZ did not change the phosphate adsorption mechanism; i.e., the formation of inner-sphere phosphate surface complexes was still responsible for the adsorption of phosphate on HA-ZrMZ. The decreased phosphate adsorption capacity for ZrMZ after HA coating could be attributed to the fact that the coating of HA on ZrMZ reduced the amount of binding active sites available for phosphate adsorption, changed the adsorbent surface charges, and reduced the specific surface areas and pore volumes of ZrMZ.
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Affiliation(s)
- Jianwei Lin
- College of Marine Science, Shanghai Ocean University, No. 999 Hucheng Huan Road, Shanghai, 201306, China.
| | - Zhe Zhang
- College of Marine Science, Shanghai Ocean University, No. 999 Hucheng Huan Road, Shanghai, 201306, China
| | - Yanhui Zhan
- College of Marine Science, Shanghai Ocean University, No. 999 Hucheng Huan Road, Shanghai, 201306, China
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27
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Liu X, Tao Y, Zhou K, Zhang Q, Chen G, Zhang X. Effect of water quality improvement on the remediation of river sediment due to the addition of calcium nitrate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:887-894. [PMID: 27697351 DOI: 10.1016/j.scitotenv.2016.09.149] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/17/2016] [Accepted: 09/17/2016] [Indexed: 06/06/2023]
Abstract
In situ sediment remediation technique is commonly used to control the release of pollutants from sediment. Addition of calcium nitrate to sediment has been applied to control the release of phosphorus from sediments. In this study, laboratory experiments were conducted to investigate the effect of water quality improvement on the remediation of river sediment with the addition of calcium nitrate. The results demonstrated that the redox-potential of sediments increased from -282mV to -130mV after 28days of calcium nitrate treatment. The acid volatile sulphide in the sediments significantly decreased (by 54.9% to 57.1%), whereas the total organic carbon decreased by 9.7% to 10.2%. However, the difference between these and water quality improvement was not significant. Due to the addition of calcium nitrate, low phosphate concentration in the water column and interstitial phosphate in the sediment were observed, indicating that the calcium nitrate was beneficial to controlling the release of phosphorus from river sediment. The decrease in phosphorus release could be attributed to the fixation of iron-phosphorus and calcium-phosphorus due to the addition of calcium nitrate. The addition of calcium nitrate to sediment caused the oxidation of sulphide to sulphate, hence resulting in high nitrate and sulphate concentrations in the water column, and high interstitial nitrate and sulphate concentrations in the sediment. The results also showed that only the water quality improvement had a significant effect on the interstitial nitrate and sulphate concentrations in the sediment.
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Affiliation(s)
- Xiaoning Liu
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Tsinghua-Kangda Research Institute of Environmental Nano-Engineering & Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Yi Tao
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Tsinghua-Kangda Research Institute of Environmental Nano-Engineering & Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Kuiyu Zhou
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Qiqi Zhang
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Guangyao Chen
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Xihui Zhang
- Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Tsinghua-Kangda Research Institute of Environmental Nano-Engineering & Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
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28
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Luo X, Wang X, Bao S, Liu X, Zhang W, Fang T. Adsorption of phosphate in water using one-step synthesized zirconium-loaded reduced graphene oxide. Sci Rep 2016; 6:39108. [PMID: 27974747 PMCID: PMC5156910 DOI: 10.1038/srep39108] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 11/17/2016] [Indexed: 11/23/2022] Open
Abstract
In this account, a one-step green hydrothermal method for zirconium-loaded reduced graphene oxide (RGO-Zr) adsorbent was developed in pure water. It is based on the formation of initially strong-coupling RGO-Zr nanocomposites followed by in situ reduction of GO to RGO during the hydrothermal treatment. The phosphate adsorption performance of the as-prepared nanocomposites was investigated in aqueous environment under various conditions. The characterization results of RGO-Zr nanocomposites showed that ZrO2 was successfully integrated onto the RGO sheets in amorphous. The data from equilibrium phosphate adsorption on RGO-Zr revealed that the adsorption kinetics followed a pseudo-second-order kinetic model, where the adsorption isotherm fitted the Langmuir isotherm model with a maximum adsorption capacity of 27.71 mg P/g at pH 5 and 298 K. The improved phosphate adsorption on RGO-Zr was caused by the dispersion of ZrO2 on the RGO surface. Furthermore, the phosphate adsorption was found insensitive to the increase in pH while it was sensitive to the increase in temperature. The coexisting anions of SO42−, F−, Cl−, NO3− and CO32− affected the phosphate adsorption in a different way. Results suggest that the present RGO-Zr adsorbent has the potential for controlling phosphorus pollution in water.
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Affiliation(s)
- Xin Luo
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.,Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiurong Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Shaopan Bao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.,Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiawei Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.,Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weicheng Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Tao Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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29
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Yuan N, Wang C, Pei Y, Jiang H. Applicability of drinking water treatment residue for lake restoration in relation to metal/metalloid risk assessment. Sci Rep 2016; 6:38638. [PMID: 27929083 PMCID: PMC5144140 DOI: 10.1038/srep38638] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 11/11/2016] [Indexed: 11/09/2022] Open
Abstract
Drinking water treatment residue (DWTR), a byproduct generated during potable water production, exhibits a high potential for recycling to control eutrophication. However, this beneficial recycling is hampered by unclear metal/metalloid pollution risks related to DWTR. In this study, the pollution risks of Al, As, Ba, Be, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, and Zn due to DWTR application were first evaluated for lake water based on human health risk assessment models and comparison of regulatory standards. The risks of DWTR were also evaluated for sediments on the basis of toxicity characteristics leaching procedure and fractionation in relation to risk assessment code. Variations in the biological behaviors of metal/metalloid in sediments caused by DWTR were assessed using Chironomus plumosus larvae and Hydrilla verticillata. Kinetic luminescent bacteria test (using Aliivibrio fischeri) was conducted to analyze the possibility of acute and chronic detrimental effects of sediment with DWTR application. According to the obtained results, we identify a potential undesirable effect of DWTR related to Fe and Mn (typically under anaerobic conditions); roughly present a dosage threshold calculation model; and recommend a procedure for DWTR prescreening to ensure safe application. Overall, managed DWTR application is necessary for successful eutrophication control.
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Affiliation(s)
- Nannan Yuan
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.,The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Changhui Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.,The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Yuansheng Pei
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Helong Jiang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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30
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He Y, Lin H, Dong Y, Liu Q, Wang L. Simultaneous removal of ammonium and phosphate by alkaline-activated and lanthanum-impregnated zeolite. CHEMOSPHERE 2016; 164:387-395. [PMID: 27596826 DOI: 10.1016/j.chemosphere.2016.08.110] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 08/11/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
Simultaneous ammonium and phosphate removal characteristics and mechanism, as well as the major influencing factors, such as pH, temperature and co-existing ions, onto NaOH-activated and lanthanum-impregnated zeolite (NLZ) were investigated. The phosphate adsorption increases from 0.2 mg g-1 for natural zeolite up to 8.96 mg g-1 for NLZ, while only a slight decrease on the ammonium adsorption capacity from 23.9 mg g-1 for NaOH-activated zeolite to 21.2 mg g-1 for NLZ was observed. The ammonium and phosphate adsorption showed little pH dependence in the range from pH 3 to 7, while it decreased sharply with the pH increased above pH 7. Adsorption of ammonium and phosphate could be well described by the pseudo-second-order model and the process was mainly governed by intra-particle diffusion. The Langmuir and Freundlich model can be acceptably applied to fit the experimental data, which suggested that adsorption was caused by both the monolayer and homogeneous coverage at specific and equal affinity sites available NLZ. The underlying mechanism for the specific adsorption of phosphate by NLZ was revealed with the aid of SEM-EDS, XPS, and FTIR analysis, and the formation of (LaO)(OH)PO2 was verified to be the dominant pathway for selective phosphate adsorption by lanthanum-impregnated zeolite. While the removal mechanism of ammonium could be well interpreted by SEM-EDS, FTIR and ICP analysis, and ion-exchange was expected to be the main removal process for ammonium. The results indicate that NLZ could efficiently and simultaneously remove low concentration of ammonium and phosphate from contaminated waters.
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Affiliation(s)
- Yinhai He
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Hai Lin
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Yingbo Dong
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Quanli Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Liang Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
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31
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Yin H, Kong M, Han M, Fan C. Influence of sediment resuspension on the efficacy of geoengineering materials in the control of internal phosphorous loading from shallow eutrophic lakes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 219:568-579. [PMID: 27312332 DOI: 10.1016/j.envpol.2016.06.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/25/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
Modified clay-based solid-phase phosphorous (P) sorbents are increasingly used as lake geoengineering materials for lake eutrophication control. However, some still dispute the feasibility of using these materials to control internal P loading from shallow eutrophic lakes. The lack of information about P behavior while undergoing frequent sediment resuspension greatly inhibits the modified minerals' use. In this study, a sediment resuspension generating system was used to simulate the effect of both moderate winds (5.1 m/s) and strong winds (8.7 m/s) on the stability of sediment treated by two geoengineering materials, Phoslock® (a lanthanum modified bentonite) and thermally-treated calcium-rich attapulgite. This study also presents an analysis of the P dynamics across the sediment-water interface of two shallow eutrophic lakes. In addition, the effect of wind velocity on P forms and P supply from the treated sediment were studied using chemical extraction and diffusive gradients in thin films (DGT) technique, respectively. Results showed that adding geoengineering materials can enhance the stability of surface sediment and reduce the erosion depth caused by wind accordingly. All treatments can effectively reduce soluble reactive phosphorus (SRP) concentration in overlying water when sediment is capped with thermally-treated calcium-rich attapulgite, which performs better than sediment mixed with modified attapulgite but not as well as sediment treated with Phoslock®. However, their efficiency decreased with the increase in occurrences of sediment resuspension. The addition of the selected geoengineering materials effectively reduced the P fluxes across sediment-water interface and lowered P supply ability from the treated sediment during sediment resuspension. The reduction of mobile P and enhancement of calcium bound P and residual P fraction in the treated sediment was beneficial to the long-term lake internal P loading management. All of the results indicated that the studied geoengineering materials are suitable for application in shallow eutrophic lakes with frequent sediment resuspension activity.
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Affiliation(s)
- Hongbin Yin
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008 Nanjing, China.
| | - Ming Kong
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, 8 Jiangwangmiao Street, 210042 Nanjing, China
| | - Meixiang Han
- Nanjing University of Science and Technology, 200 Xiaolingwei Road, 210094 Nanjing, China
| | - Chengxin Fan
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008 Nanjing, China
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32
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Wang C, Bai L, Jiang HL, Xu H. Algal bloom sedimentation induces variable control of lake eutrophication by phosphorus inactivating agents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 557-558:479-488. [PMID: 27017078 DOI: 10.1016/j.scitotenv.2016.03.082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 03/11/2016] [Accepted: 03/11/2016] [Indexed: 06/05/2023]
Abstract
Lake eutrophication typically occurs with a syndrome of algae breeding and biomass accumulation (e.g., algal blooms). Therefore, the effect of algal bloom sedimentation on eutrophication control by phosphorus (P) inactivating agents was assessed herein. Three commercial products, including aluminum (Al) sulfate, iron (Fe) sulfate, and a lanthanum-modified clay (Phoslock®), as well as one easily available by-product, drinking water treatment residue (DWTR), were selected. The most important finding was that during algae sedimentation, P immobilization from the overlying water by Al, Phoslock®, and DWTR was dominated by a long-term slow phase (>150d), while Fe has limited effectiveness on the immobilization. Further analysis indicated that the algae sedimentation effect was mainly due to the slow release of P from algae, leading to relatively limited P available for the inactivating agents. Then, a more unfavorable effect on the P immobilization capability of inactivating agents was caused by the induced anaerobic conditions, the released organic matter from algae, and the increased sulfide in the overlying water and sediments during sedimentation. Overall, algae sedimentation induced variable control of eutrophication by P inactivating agents. Accordingly, recommendations for future works about algal lake restoration were also proposed.
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Affiliation(s)
- Changhui Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Leilei Bai
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Graduate University of Chinese Academy of Sciences, China
| | - He-Long Jiang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Huacheng Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
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Liu S, Li J, Yang Y, Wang J, Ding H. Influence of environmental factors on the phosphorus adsorption of lanthanum-modified bentonite in eutrophic water and sediment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:2487-2494. [PMID: 26423284 DOI: 10.1007/s11356-015-5453-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
Lanthanum-modified bentonite has potential for wide application in eutrophication control. We investigated P adsorption on a lanthanum-modified bentonite by analysis of adsorption kinetics, equilibrium, and the effect of environmental factors. P adsorption closely followed the pseudo-second-order kinetic model, and the isotherm was well described by the Langmuir model. This adsorbent could effectively immobilize P into the sediment, but the adsorption process was strongly dependent on pH, anions, and low molecular weight organic acids (LMWOAs). P adsorption increased with increasing pH from 0.52 mg P/g at pH 3.0 to 0.93 mg P/g at pH 7.0 with no adsorption at pH 11. P adsorption was strongly inhibited in the presence of anions and three LMWOAs, with P even re-released at high concentrations. These environmental factors should be given significant attention when considering the application of lanthanum-modified bentonite in eutrophication control.
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Affiliation(s)
- SheJiang Liu
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin, 300072, People's Republic of China
| | - Jie Li
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin, 300072, People's Republic of China
| | - YongKui Yang
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin, 300072, People's Republic of China.
| | - Juan Wang
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin, 300072, People's Republic of China
| | - Hui Ding
- School of Environmental Science and Engineering, Tianjin University, No. 92, Weijin Rd., Nankai District, Tianjin, 300072, People's Republic of China
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Wang C, Jiang HL, Xu H, Yin H. Variation of physicochemical properties of drinking water treatment residuals and Phoslock(®) induced by fulvic acid adsorption: Implication for lake restoration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:351-365. [PMID: 26308919 DOI: 10.1007/s11356-015-5209-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/10/2015] [Indexed: 06/04/2023]
Abstract
The use of phosphorus (P) inactivating agents to reduce internal P loading from sediment for lake restoration has attracted increasing attention. Reasonably, the physicochemical properties of P inactivating agents may vary with the interference of various environmental factors, leading to the change of control effectiveness and risks. In this study, the effect of fulvic acid (FA) adsorption on the properties of two agents, drinking water treatment residuals (DWTRs) and Phoslock®, was investigated. The results showed that after adsorption, there was little change for the main structures of DWTRs and Phoslock®, but the thermostability of Phoslock®, as well as the particle size and settleability of the two agents decreased. The specific surface area and pore volume of DWTRs also decreased, while those of Phoslock® increased. Further analysis indicated that aluminum and iron in DWTRs were stable during FA adsorption, but a substantial increase of lanthanum release from Phoslock® was observed, in particular at first (P < 0.01). Moreover, the P immobilization capability of DWTRs had little change after FA adsorption, while the capability of Phoslock® after FA adsorption decreased in solutions (P < 0.001) and sediments (P < 0.1); interestingly, from the view of engineering application, the performance of Phoslock® was not substantially affected. Overall, each P inactivating agent had its own particular responses of the physicochemical properties to environment factors, and detailed investigations on the applicability of each agent were essential before practical application.
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Affiliation(s)
- Changhui Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - He-Long Jiang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Huacheng Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Hongbin Yin
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
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