Nutrient Removal
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2022 ◽  
Vol 802 ◽  
pp. 149862
Shaoyi Xu ◽  
Wenbo Chai ◽  
Rui Xiao ◽  
Barth F. Smets ◽  
Alejandro Palomo ◽  

2021 ◽  
Vol 147 (12) ◽  
Yong-Ze Lu ◽  
Yue Yin ◽  
Li-Ran Xu ◽  
Xin Li ◽  
Guang-Can Zhu

Liying Zhu ◽  
Wei Liang ◽  
Chunrong Wang ◽  
Amir Hossein Hamidian

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2745
Jingyu Li ◽  
Guohua Cui ◽  
Yan Liu ◽  
Qiaohan Wang ◽  
Qingli Gong ◽  

Seaweeds have been verified to effectively reduce the nutrients of aquaculture wastewater, and to increase the economic output when commercially valuable species are utilized. Pyropia/Porphyra/Neopyropia/Neoporphyra species are important seafood resources globally, and their growth and bioremediation capacities are affected by diverse biotic and abiotic stressors. In this study, we investigated the effects of desiccation (0, 1, 2, 4, and 6 h of air exposure), water velocity (0.1, 0.2, and 0.5 m s−1), and the nitrogen limitation period (1, 2, and 3 d) on the relative growth rates (RGR) and nutrient removal rates of Neoporphyrahaitanensis and Neoporphyradentata. The RGRs and NO3-N removal rates of the two species decreased significantly with increasing desiccation periods. A higher water velocity of 0.5 m s−1 had a greater negative impact on the RGRs and NO3-N and PO4-P removal rates than 0.1 and 0.2 m s−1. N. haitanensis exhibited a greater tolerance to water motion than N. dentata. Additionally, the RGRs and NO3-N and PO4-P removal rates were significantly different among the nitrogen limitation periods. N. haitanensis and N. dentata exhibited different nitrogen usage strategies after nitrogen limitation and recovery. These results provide valuable information relating to the excessive nutrient removal from aquaculture wastewater by Neoporphyra species.

2021 ◽  
Vol 300 ◽  
pp. 113747
Mohammad Shokri ◽  
Kelly M. Kibler ◽  
Christopher Hagglund ◽  
Andrew Corrado ◽  
Dingbao Wang ◽  

2021 ◽  
Vol 48 ◽  
pp. 101620
Prangya Ranjan Rout ◽  
Rajesh Roshan Dash ◽  
Puspendu Bhunia ◽  
Eunseok Lee ◽  
Jaeho Bae

2021 ◽  
Vol 300 ◽  
pp. 113722
Abdoul Kouanda ◽  
Guanghui Hua

2021 ◽  
Vol 60 ◽  
pp. 102486
Marco L. Calderini ◽  
Čedomir Stevčić ◽  
Sami Taipale ◽  
Katja Pulkkinen

Shaobin Li ◽  
Seyed Aryan Emaminejad ◽  
Samuel Aguiar ◽  
Aliza Furneaux ◽  
Ximing Cai ◽  

2021 ◽  
Renske Vroom ◽  
Jeroen Geurts ◽  
Reinder Nouta ◽  
Annieke Borst ◽  
Leon Lamers ◽  

Abstract PurposePaludiculture (crop cultivation in wet peatlands) can prevent carbon and nutrient losses while enabling biomass production. As vegetation in rewetted peatlands is often nitrogen (N) limited, input of N rich water may promote biomass production and nutrient removal. However, it is unclear how N loading and soil characteristics affect biomass yield, nutrient dynamics, and ecosystem service provisioning in paludicultures. MethodsWe studied the influence of N loading (0, 50, 150, and 450 kg N ha-1 yr-1) on biomass production and nutrient sequestration of Typha latifolia (broadleaf cattail) and Phragmites australis (common reed) on a limed agricultural peat soil after rewetting. To assess the interaction with soil characteristics T. latifolia was also grown on a non-limed former agricultural soil.ResultsN loading stimulated biomass production and nutrient uptake of both T. latifolia and P. australis, with T. latifolia showing the most pronounced response. Biomass yield of T. latifolia was higher in the limed soil than in the non-limed soil due to a higher pH, despite lower nutrient availability. N was largely taken up by the vegetation, whereas bare soils showed N accumulation in pore and surface water, and 80% loss through denitrification. Phosphorus in the soil was efficiently taken up by T. latifolia, especially at high N loads.ConclusionN loading in paludicultures with T. latifolia and P. australis boosts biomass production while kick-starting peatland ecosystem services including nutrient removal. Nutrient availability and pH appear to be decisive soil characteristics when it comes to crop selection.

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