Nitrogen removal from polluted river water by surface flow wetland with forage rice (Oryza sativa L. cv. Kusahonami)

2009 ◽  
Vol 1 (2) ◽  
pp. 123 ◽  
Author(s):  
Sheng Zhou ◽  
Masaaki Hosomi
Keyword(s):  
Oryza Sativa ◽  
River Water ◽  
Nitrogen Removal ◽  
Oryza Sativa L ◽  
Surface Flow ◽  
Polluted River ◽  
Forage Rice

Nitrogen removal from polluted river water in a novel ditch–wetland–pond system

2013 ◽  
Vol 60 ◽  
pp. 135-139 ◽  
Author(s):  
Wenzhong Tang ◽  
Wenqiang Zhang ◽  
Yu Zhao ◽  
Yuanyue Wang ◽  
Baoqing Shan
Keyword(s):  
River Water ◽  
Nitrogen Removal ◽  
Polluted River ◽  
Pond System

CH4 and N2O emissions from different varieties of forage rice (Oryza sativa L.) treating liquid cattle waste

2012 ◽  
Vol 419 ◽  
pp. 178-186 ◽  
Author(s):  
Shohei Riya ◽  
Sheng Zhou ◽  
Yoichi Watanabe ◽  
Masaki Sagehashi ◽  
Akihiko Terada ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
N2o Emissions ◽  
Forage Rice ◽  
Ch4 And N2o

scholarly journals Nitrogen Balance in Forage Rice (Oryza sativa L. cv. Tachisuzuka) Cultivation in Pots with Animal Manure Application

2015 ◽  
Vol 18 (4) ◽  
pp. 529-534
Author(s):  
Gusmini ◽  
Kazuyuki Nishimura ◽  
Taizo Masuda ◽  
A. Adrinal ◽  
Tesshu Tamai ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Nitrogen Balance ◽  
Oryza Sativa L ◽  
Animal Manure ◽  
Manure Application ◽  
Forage Rice

scholarly journals Effect of the Influent Substrate Concentration on Nitrogen Removal from Summer to Winter in Field Pilot-Scale Multistage Constructed Wetland–Pond Systems for Treating Low-C/N River Water

2021 ◽  
Vol 13 (22) ◽  
pp. 12456
Author(s):  
Tao Wang ◽  
Liping Xiao ◽  
Hongbin Lu ◽  
Shaoyong Lu ◽  
Xiaoliang Zhao ◽  
...  
Keyword(s):  
River Water ◽  
Constructed Wetlands ◽  
Nitrogen Removal ◽  
Constructed Wetland ◽  
Substrate Concentration ◽  
Removal Rate ◽  
Carbon Sources ◽  
River Estuary ◽  
Pilot Scale ◽  
Surface Flow

The quality of micropolluted water is unstable and its substrate concentration fluctuates greatly. The goal is to predict the concentration effect on the treatment of nitrogen in a river with an actual low C/N ratio for the proposed full-scale Xiaoyi River estuary wetland, so that the wetland project can operate stably and perform the water purification function effectively in the long term. Two pilot-scale multistage constructed wetland–pond (MCWP) systems (S1 and S2, respectively) based on actual engineering with the same “front ecological oxidation ponds, two-stage horizontal subsurface flow constructed wetlands and surface flow constructed wetlands (SFCWs) as the core and postsubmerged plant ponds” as the planned process were constructed to investigate the effect of different influent permanganate indexes (CODMn) and total nitrogen (TN) contents on nitrogen removal from micropolluted river water with a fixed C/N ratio from summer to winter in the field. The results indicate that the TN removal rate in the S1 and S2 systems was significant (19.56% and 34.84%, respectively). During the process of treating this micropolluted water with a fixed C/N ratio, the influent of S2 with a higher CODMn concentration was conducive to the removal of TN. The TN removal rate in S2 was significantly affected by the daily highest temperature. There was significant nitrogen removal efficiency in the SFCWs. The C/N ratio was a major determinant influencing the nitrogen removal rate in the SFCWs. The organic matter release phenomenon in SFCWs with high-density planting played an essential role in alleviating the lack of carbon sources in the influent. This research strongly supports the rule that there is seasonal nitrogen removal in the MCWPs under different influent substrate concentrations, which is of guiding significance for practical engineering.

scholarly journals The role of effluent water irrigation in the mineral absorption of aerobic rice varieties (Oryza sativa L.)

2020 ◽  
Author(s):  
Marks Ibadzade ◽  
Ágnes Kun ◽  
Árpád Székely ◽  
Tímea Szalóki ◽  
Károly Penksza ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
River Water ◽  
Irrigation Water ◽  
Oryza Sativa L ◽  
Rice Production ◽  
Water Bodies ◽  
Aerobic Rice ◽  
Rice Varieties ◽  
Lysimeter Experiment ◽  
The Impact

AbstractQuality and quantity of different irrigation water types from conventional and alternative sources have a significant role on the productive parameters and chemical composition of crop plants. Appropriate alternative water sources and the reutilization of agricultural effluents can reduce the impact of rice production and animal husbandry on the natural water bodies. In the present study, influence of four different types of irrigation water was analyzed on the nutrient uptake (P, K, Ca, Mg, Na) of aerobic rice (Oryza sativa L.) in a complex lysimeter experiment in two consecutive years. Early maturing Hungarian rice varieties (M 488 and Janka) were irrigated with traditional river water (RW) and different alternative irrigation sources to evaluate the feasibility of a sodium containing intensive fish farm effluent with (EWG) or without (EW) gypsum supplementation and with the addition of natural river water (EWGR). Significant effects on the mineral content of the aboveground biomass were measured. P uptake by M 488 and Janka decreased after the irrigation with EW in 2017. In case of EW, EWG and EWGR, the Na content increased significantly (p ≤ 0.05) in both varieties; however, pre-treatment of salt containing effluent waters can moderate the stress level. As a consequence, the ability of both rice varieties to absorb Na suggests that rice production could be conditionally part of bioremediation of salt-affected soils and water bodies.

Treatment of Polluted River Water Using Surface Flow Constructed Wetlands in Xinyi River Floodplain

2011 ◽  
Vol 396-398 ◽  
pp. 1909-1913
Author(s):  
Jian Qiang Wu ◽  
Min Wang ◽  
Jian Wu ◽  
Hao Tang
Keyword(s):  
River Water ◽  
Removal Rate ◽  
Typha Latifolia ◽  
Pilot Scale ◽  
Lythrum Salicaria ◽  
Surface Flow ◽  
Polluted River ◽  
Canna Indica ◽  
N Removal ◽  
Scale Surface

Treatment of polluted river water with great variations of water quality using pilot-scale Surface Flow Constructed Wetland (SFW) was studied in this paper. The main results show that: When the influent concentrations of CODMn and NH4+-N were 11.69~60.00 mg•L-1 and 1.37~20.18 mg•L-1, the CODMn and NH4+-N removal rate of SFW which planted Lythrum salicaria, Canna indica, Typha latifolia and Scirpus locustris were 26.44％、40.12％、46.71％、28.23％ and 64.27％、70.49％、66.78%、58.52%. Typha latifolia and Canna indica have stronger ability for purifying pollutants. Scirpus locustris has strongest ability of overhead flooding, it can resist inundation over 22 days and still live. Lythrum salicaria has lowest ability of overhead flooding, it only can resist inundation 7 days.

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