Swine wastewater treatment by marsh–pond–marsh constructed wetlands under varying nitrogen loads

Poach, M. E.; Hunt, P. G.; Reddy, G. B.; Stone, K. C.; Johnson, M. H.; Grubbs, A.

doi:10.1016/j.ecoleng.2004.09.001

Cited by 83 publications

(45 citation statements)

References 8 publications

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“…Consistent with other reports [21,22], we think temperature was one of the most important effects on the removal of nutrients. Temperatured in summer are much higher than in winter, and in general, high temperature usually increase the activity of the microorganisms, oxygen availability, and plant uptake.…”

Section: Pollutant Removal In Watersupporting

confidence: 80%

Effects of Misgurnus anguillicaudatus and Cipangopaludina cathayensis on Pollutant Removal and Microbial Community in Constructed Wetlands

Zhang

Xie

et al. 2015

Water

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Abstract:Aquatic animals play an important role in the energy flow and matter cycling in the wetland ecosystem. However, little is known about their effects on pollutant removal performance and microbial community in constructed wetlands. This work presents an initial attempt to investigate the effects of Misgurnus anguillicaudatus (loach) and Cipangopaludina cathayensis (snail) on nutrient removal performance and microbial community of constructed wetlands (CWs). Compared with a control group, CW microcosms with aquatic animals exhibited better pollutant removal performance. The removal efficiencies of total phosphorus (TP) in the loach group were 13.1% higher than in the control group, and snails increased the ammonium removal most effectively. Moreover, the concentration of total organic carbon (TOC) and TP in sediment significantly reduced with the addition of loaches and snails (p < 0.05), whereas the concentration of total nitrogen (TN) showed an obvious increase with the addition of loaches. High-throughput sequencing showed a microbial community structure change. Loaches and snails in wetlands changed the microbial diversity, especially in the Proteobacteria and denitrifying community. Results suggested that benthic aquatic animals might play an important role in CW ecosystems.

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Section: Pollutant Removal In Watersupporting

confidence: 80%

Effects of Misgurnus anguillicaudatus and Cipangopaludina cathayensis on Pollutant Removal and Microbial Community in Constructed Wetlands

Zhang

Xie

et al. 2015

Water

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“…The removal rates of N and NH 4 + in this study were above 70% from the influent to the effluent and this was similar to what had been previously reported [9,21]. The removal rate of total and organic phosphorus was low between the lagoon and the effluent samples.…”

Section: Nutrient Removalsupporting

confidence: 74%

Microbial Diversity in Continuous Flow Constructed a Wetland for the Treatment of Swine Waste

Am¹,

Ma²,

Murinda³

et al. 2017

Hydrol Current Res

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Contaminant removal may largely be a function of many microbial processes in constructed wetlands. However, the role of microbial diversity for the removal of swine waste in constructed wetlands is limited. Here, we used 454/ GS-FLX pyrosequencing to assess archaeal, bacterial, and fungal composition within a surface flow constructed wetland to determine their spatial dynamics and contaminant removal within the wetland. We analyzed our data using UniFrac and principal coordinate analysis (PCoA) to compare community structure and specific functional groups of bacteria, archaea, and fungi in different sections of the wetland. PCoA analysis showed that, bacterial, archaeal, and fungal composition were significantly different (p=0.001) for the influent compared to the final effluent. Our results showed that, the wetland system contained relatively higher proportions of bacteria and fungi than archaea. Most of the bacteria and archaea that were associated with nitrogen removal were affiliated with Nitrosomonas which are ammonia oxidizing bacteria (AOB), Candidatus Solibacter, an anaerobic ammonia oxidizing bacteria (Anammox), as well as Nitrosopumilus, ammonia oxidizing archaea (AOA). The detection of AOB, Anammox, and AOA in this wetland shows abundance and diversity of these microorganisms that are responsible for nitrification processes in constructed wetlands.

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“…50% of COD. 51 % total N and 26% total P from swine wastewater (Poach et al, 2004). Constructed wetlands can also release N as NH 3 • although this has been shown to be a relatively small portion of total N loss (Poach et al .. 2002).…”

Section: Slurry and Liquid Manure Systemsmentioning

confidence: 99%

Sustainable manure management.

Leytem¹,

Dungan²,

Kleinman³

2013

Sustainable Animal Agriculture

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Swine wastewater treatment by marsh–pond–marsh constructed wetlands under varying nitrogen loads

Cited by 83 publications

References 8 publications

Effects of Misgurnus anguillicaudatus and Cipangopaludina cathayensis on Pollutant Removal and Microbial Community in Constructed Wetlands

Effects of Misgurnus anguillicaudatus and Cipangopaludina cathayensis on Pollutant Removal and Microbial Community in Constructed Wetlands

Microbial Diversity in Continuous Flow Constructed a Wetland for the Treatment of Swine Waste

Sustainable manure management.

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