Enhanced removal of organic matter and ammonia nitrogen in a one-stage vertical flow constructed wetland system

2009 ◽  
pp. NA-NA ◽  
Author(s):  
Xiaoli Du ◽  
Zuxin Xu ◽  
Sheng Wang
Keyword(s):  
Organic Matter ◽  
Constructed Wetland ◽  
Ammonia Nitrogen ◽  
Vertical Flow ◽  
One Stage ◽  
Vertical Flow Constructed Wetland ◽  
Wetland System

Enhanced removal of organic matter and nitrogen in a vertical-flow constructed wetland withEisenia foetida

2013 ◽  
Vol 51 (40-42) ◽  
pp. 7460-7468 ◽  
Author(s):  
Lei Wu ◽  
Xian-ning Li ◽  
Hai-liang Song ◽  
Guo-fang Wang ◽  
Qiu Jin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Constructed Wetland ◽  
Vertical Flow ◽  
Vertical Flow Constructed Wetland

scholarly journals Constructed wetland systems in Poland

2019 ◽  
pp. 151-161
Author(s):  
H. Obarska-Pempkowiak ◽  
M. Gajewska ◽  
P. Kowalik
Keyword(s):  
Organic Matter ◽  
Hybrid Systems ◽  
Nitrogen Removal ◽  
Constructed Wetland ◽  
Suspended Solids ◽  
Ammonia Nitrogen ◽  
Salix Viminalis ◽  
Septic Tank ◽  
Local Systems ◽  
One Stage

Efficiency of removal of contaminants in individual and local constructed wetland systemsoperating in 1995-2000 in Poland was analysed. Individual plants were composed of filterbeds of horizontal subsurface flow planted with willow (Salix viminalis) or reed (Phragmitesaustra/is).The local systems were hybrid constructed wetland systems consisting of horizontal andvertical flow filters. All systems were fed with septic tank effluent.Removal of organic matter and suspended solids was found to be very efficient. However theremoval of nitrogen (especially ammonia nitrogen) in one stage systems was insufficient. Itwas proved that hybrid systems ensure higher efficiencies of nitrogen removal than horizontalflow systems.

scholarly journals TREATMENT OF SEPTIC TANK SLUDGE IN A VERTICAL FLOW CONSTRUCTED WETLAND SYSTEM

2017 ◽  
Vol 37 (4) ◽  
pp. 811-819 ◽  
Author(s):  
Cynthia F. Andrade ◽  
Marcos Von Sperling ◽  
Elias S. Manjate
Keyword(s):  
Constructed Wetland ◽  
Septic Tank ◽  
Vertical Flow ◽  
Vertical Flow Constructed Wetland ◽  
Wetland System

Experiences from the full-scale implementation of a new two-stage vertical flow constructed wetland design

2013 ◽  
Vol 69 (2) ◽  
pp. 335-342 ◽  
Author(s):  
Guenter Langergraber ◽  
Alexander Pressl ◽  
Raimund Haberl
Keyword(s):  
Constructed Wetland ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Full Scale ◽  
Vertical Flow ◽  
Effluent Water ◽  
Two Stage ◽  
Vertical Flow Constructed Wetland ◽  
Hydraulic Load ◽  
Public Holidays

This paper describes the results of the first full-scale implementation of a two-stage vertical flow constructed wetland (CW) system developed to increase nitrogen removal. The full-scale system was constructed for the Bärenkogelhaus, which is located in Styria at the top of a mountain, 1,168 m above sea level. The Bärenkogelhaus has a restaurant with 70 seats, 16 rooms for overnight guests and is a popular site for day visits, especially during weekends and public holidays. The CW treatment system was designed for a hydraulic load of 2,500 L.d−1 with a specific surface area requirement of 2.7 m2 per person equivalent (PE). It was built in fall 2009 and started operation in April 2010 when the restaurant was re-opened. Samples were taken between July 2010 and June 2013 and were analysed in the laboratory of the Institute of Sanitary Engineering at BOKU University using standard methods. During 2010 the restaurant at Bärenkogelhaus was open 5 days a week whereas from 2011 the Bärenkogelhaus was open only on demand for events. This resulted in decreased organic loads of the system in the later period. In general, the measured effluent concentrations were low and the removal efficiencies high. During the whole period the ammonia nitrogen effluent concentration was below 1 mg/L even at effluent water temperatures below 3 °C. Investigations during high-load periods, i.e. events like weddings and festivals at weekends, with more than 100 visitors, showed a very robust treatment performance of the two-stage CW system. Effluent concentrations of chemical oxygen demand and NH4-N were not affected by these events with high hydraulic loads.

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