Phosphorus removal from lagoon-pretreated swine wastewater by pilot-scale surface flow constructed wetlands planted with Myriophyllum aquaticum

Luo, Pei; Liu, Feng; Liu, Xinliang; Wu, Xiao; Yao, Ran; Chen, Liang; Li, Xi; Xiao, Runlin; Wu, Jinshui

doi:10.1016/j.scitotenv.2016.10.094

Cited by 85 publications

(30 citation statements)

References 38 publications

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“…The results collectively indicated that M. aquaticum planted in the LSCW was a better macrophyte for removing these pollutants from wastewater. The mechanism of pollutant removal may be attributed to plant uptake for growth and proliferation as reported in other studies [27,42,53]. For instance, mass balance analyses in these studies showed that M. aquaticum can uptake 1.06-1.44 g N and 1.02-1.67 g P/kg dry weight, which is generally higher than the N and P uptake rates by macrophytes such as Phragmites australis and Typha orientalis.…”

Section: Macrophytes Showed Excellent Nutrient Removal In the Lscwmentioning

confidence: 55%

“…For the PSCW, water samples were collected from the inlets of every treatment and from every opening of the water-level connecting pipes. Water qualities including COD, NH 4 + , TN, and TP were examined through well-established standard methods published in previous studies [38,42], unless otherwise specified.…”

Section: Water Sampling and Quality Analysismentioning

confidence: 99%

“…Similarly, the removal efficiencies at the end of each treatment stage of the PSCW were calculated using the difference of pollutant concentrations (mg/L) between the initial influent and the stage effluent divided by the initial influent concentration (mg/L). The calculation for the organic loading rates of the pollutants was adopted from a previous study [42]. One-way univariate analysis of variance (ANOVA) was used to analyze the statistical significance of removal efficiencies of different treatments in the LSCW and the PSCW.…”

Section: Data and Statistical Analysesmentioning

confidence: 99%

“…Inspired by previous studies [27,42], a laboratory-scale surface flow CW (LSCW) was designed aiming to determine (a) the best pollutant removal efficiencies by different treatments including E. crassipes, M. aquaticum, and PFs; (b) the optimal operational conditions for this LSCW; and (c) the closest match of removal results with the simulations of kinetic models. The simulation results showed that pollutant removal was best simulated with the Monod kinetics model combined with the plug flow pattern.…”

Section: Introductionmentioning

confidence: 99%

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Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Feng

Zhang

et al. 2018

Water

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Water pollution caused by various eutrophic nutrients such as nitrogen (N) and phosphorus (P), such as outbreaks of eutrophication in rivers and lakes, has become a serious environmental problem in China. Such problems have spurred extensive studies aiming at finding environmentally friendly solutions. Various constructed wetlands (CWs), planted with different macrophytes, have been considered as environmentally safe technologies to treat various wastewaters for several decades. Due to their low energy and operational requirements, CWs are promising alternative solutions to water eutrophication problems. Within the CWs, macrophytes, sediments, and the microbial community are indispensable constituents of such an ecosystem. In this study, a laboratory-scale surface flow CW (LSCW) was constructed to investigate the effects of two different plants, Eichhornia (E.) crassipes (Mart.) Solms and Myriophyllum (M.) aquaticum, on the removal of eutrophic N and P. The results showed that both plants could significantly reduce these nutrients, especially ammonium (NH4+), and LSCW planted with M. aquaticum performed better (82.1% NH4+ removal) than that with E. crassipes (66.4% NH4+ removal). A Monod model with a plug flow pattern was used to simulate the relationship of influent and effluent concentrations with the kinetic parameters of this LSCW. Based on the model, a pilot-scale surface flow CW (PSCW) was designed, aiming to further enhance N and P removal. The treatment with M. aquaticum and polyethylene materials showed the best removal efficiency on NH4+ as well as on total nitrogen and phosphorus. In general, the enlarged PSCW can be a promising solution to the eutrophication problems occurring in aquatic environments.

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Section: Macrophytes Showed Excellent Nutrient Removal In the Lscwmentioning

confidence: 55%

Section: Water Sampling and Quality Analysismentioning

confidence: 99%

Section: Data and Statistical Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Feng

Zhang

et al. 2018

Water

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show abstract

“…Nonetheless, intensive livestock production can be regarded as a point source, and actions to reduce total P emission may be cost-effective and urgent [8,9]. Different treatment technologies including biological, physical, and chemical or a combination of these methods have been employed to treat swine wastewaters and P recovery [1,10,11]. Among these processes, biological phosphorus removal (BPR) is used to fix phosphorus into sludge and recommended for its less energy and cost [12].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Phosphorus Recovery from Swine Wastewater in Beijing, China

Wang

Zhang

et al. 2017

Sustainability

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Abstract:The nutrient management of phosphorus (P) contained in swine wastewater is an important challenge to enhance P use efficiency. In the present study, assessment of P recovery from swine wastewater in Beijing was performed. P amounts of swine wastewater increased from 11,687 tons in 1980 to 16,237 tons in 2014. Without treatment of swine wastewater, P concentration will reach a maximum 1.20 mg/L. The maximum P recovery was 99.36% under the condition of crystallization coupled BPR (biological phosphorus removal) when the operating conditions were 60.6 mg/L for C p (initial P concentration (mg/L)), 1.2 for Mg/P (magnesium-to-P molar ratio), 9.7 for pH of crystallization process, and 8.0 for pH, 1.6 h for anaerobic stage time, 15 days for sludge retention time of BPR. The P concentration for water quality was 0.03 mg/L to meet the water regulation standard. Under this situation, if the target P concentration were set as Grade II and III, pig breeding numbers reached 42.07 and 95.90 million heads. Construction investments for the crystallization, BRP, and coupled methods are 411 (10 4 Yuan, 604,307 USD), 301 (10 4 Yuan, 442,580 USD), and 551 (10 4 Yuan, 810,170 USD), respectively. The running costs are 15.205 (10 4 Yuan/year, 22,360 USD/year), 28.907 (10 4 Yuan/year, 42,500 USD/year) and 44.112 (10 4 Yuan/year, 64,860 USD/year). To manage non-point pollution, swine wastewater treatment facilities should be used and pig breeding numbers should be managed within reasonable ranges.

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Biofilm development dynamics and pollutant removal performance of ceramsite made from drinking‐water treatment sludge

Chen

Yang

Pei

et al. 2019

Water Environment Research

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Alum‐sludge ceramsite and denitrifying bacteria (XP‐1, XP‐2, CL‐1, CL‐3) were used as substrate and constructed biofilm for enhancing the removal of pollutants from wastewater. The results showed that, due to the large specific surface area, the maximum growth rate was 0.49 mg/(g·day) on the sludge ceramsite, and the mass of biofilm attached onto sludge ceramsite was 5.98 times higher than that when using commercial ceramsite as substrate. Better removal performance could be achieved with the combination of sludge ceramsite and bacteria, viz. 98.6%, 91.0%, and 85.8% reduction in total phosphorus (TP), total nitrogen (TN), and chemical oxygen demand (COD), respectively. Pseudo–first‐order kinetics, pseudo–second‐order kinetics, Monod kinetics, and multiple Monod kinetics combined with continuous‐flow‐stirred tank reactor (CFSTR) behavior were used to investigate the dynamics of the pollutant removal processes. The decrease in band brightness for bacteria attached onto sludge ceramsite was 11.5%, while it was more than 35.7% on commercial ceramsite during wastewater treatment according to results from denaturing gradient gel electrophoresis (DGGE). Sludge ceramsite played an important role in maintaining quantities and activities of denitrifying bacteria, and application of sludge ceramsite substrate and denitrifying bacteria was a reliable method to enhance the removals of phosphorus, nitrogen, and COD from domestic wastewater.Practitioner Points Alum‐sludge ceramsite was a good substrate for phosphorus adsorption and denitrifying bacterial growth. There was 5.98 times more biofilm on sludge ceramsite than on commercial ceramsite The biofilm of denitrifying bacteria on sludge ceramsite was more stable. High removals of TP (98.6%), TN (90.1%) and COD (85.81%) were achieved.

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Phosphorus removal from lagoon-pretreated swine wastewater by pilot-scale surface flow constructed wetlands planted with Myriophyllum aquaticum

Cited by 85 publications

References 38 publications

Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Myriophyllum aquaticum-Based Surface Flow Constructed Wetlands for Enhanced Eutrophic Nutrient Removal—A Case Study from Laboratory-Scale up to Pilot-Scale Constructed Wetland

Assessment of Phosphorus Recovery from Swine Wastewater in Beijing, China

Biofilm development dynamics and pollutant removal performance of ceramsite made from drinking‐water treatment sludge

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