An integrated constructed wetland to treat contaminants and nutrients from dairy farmyard dirty water

2005 ◽  
Vol 24 (3) ◽  
pp. 219-232 ◽  
Author(s):  
E.J. Dunne ◽  
N. Culleton ◽  
G. O’Donovan ◽  
R. Harrington ◽  
A.E. Olsen
2014 ◽  
Vol 69 (7) ◽  
pp. 1410-1418 ◽  
Author(s):  
Weijie Guo ◽  
Zhu Li ◽  
Shuiping Cheng ◽  
Wei Liang ◽  
Feng He ◽  
...  

To examine the performance of a constructed wetland system on stormwater runoff and domestic sewage (SRS) treatment in central east China, two parallel pilot-scale integrated constructed wetland (ICW) systems were operated for one year. Each ICW consisted of a down-flow bed, an up-flow bed and a horizontal subsurface flow bed. The average removal rates of chemical oxygen demand (CODCr), total suspended solids (TSS), ammonia (NH4+-N), total nitrogen (TN) and total phosphorus (TP) were 63.6, 91.9, 38.7, 43.0 and 70.0%, respectively, and the corresponding amounts of pollutant retention were approximately 368.3, 284.9, 23.2, 44.6 and 5.9 g m−2 yr−1, respectively. High hydraulic loading rate (HLR) of 200 mm/d and low water temperatures (<15 °C) resulted in significant decrease in removals for TP and NH4+-N, but had no significant effects on removals of COD and TSS. These results indicated that the operation of this ICW at higher HLR (200 mm/d) might be effective and feasible for TSS and COD removal, but for acceptable removal efficiencies of nitrogen and phosphorus it should be operated at lower HLR (100 mm/d). This kind of ICW could be employed as an effective technique for SRS treatment.


2017 ◽  
Vol 244 ◽  
pp. 1178-1182 ◽  
Author(s):  
Pratiksha Srivastava ◽  
Saurabh Dwivedi ◽  
Naresh Kumar ◽  
Rouzbeh Abbassi ◽  
Vikram Garaniya ◽  
...  

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