Phosphorus mass balance in a surface flow constructed wetland receiving piggery wastewater effluent

2012 ◽  
Vol 66 (4) ◽  
pp. 712-718 ◽  
Author(s):  
S. Y. Lee ◽  
M. C. Maniquiz ◽  
J. Y. Choi ◽  
J.-H. Kang ◽  
L.-H. Kim
Keyword(s):  
Mass Balance ◽  
Constructed Wetland ◽  
Retention Rate ◽  
Phosphorus Uptake ◽  
Common Reed ◽  
Surface Flow ◽  
Phosphorus Retention ◽  
Piggery Wastewater ◽  
Dominant Plant Species ◽  
Phosphorus Mass Balance

This research was conducted to investigate the phosphorus forms present in water, soil and sediment and to estimate the phosphorus mass balance in a surface flow constructed wetland (CW). Water quality and sediment samples were collected from each cell along the hydrologic path in the CW from October 2008 to December 2010. At the same time, three dominant plant species (e.g. common reed and cattails) were observed through the measurement of the weight, height and phosphorus content. Based on the results, the orthophosphate constituted 24–34% of total phosphorus in water for each cell. The overall average phosphorus removal efficiency of the CW was approximately 38%. The average inflow and outflow phosphorus loads during the monitoring period were 1,167 kg/yr and 408 kg/yr, respectively. The average phosphorus retention rate was 65%, was mainly contributed by the settling of TP into the bottom sediments (30%). The phosphorus uptake of plants was less than 1%. The estimated phosphorus mass balance was effective in predicting the phosphorus retention and release in the CW treating wastewater. Continuous monitoring is underway to support further assessment of the CW system and design.

scholarly journals Study of bioremediation of water environment using constructed wetland for ecological engineering and bioenergy generation from biomass recycling

2019 ◽  
Vol 1 (1) ◽  
pp. 53-57
Author(s):  
Gotore Obey ◽  
Prattakorn Sittisom ◽  
Rameshprabu Ramaraj ◽  
Yuwalee Unpaprom ◽  
Giang Tran Van ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Water Environment ◽  
Ecological Engineering ◽  
Environmental Water ◽  
Common Reed ◽  
Surface Flow ◽  
Point Sources ◽  
Perennial Grasses ◽  
Total Carbon ◽  
Total Carbon Content

Environmental water ecosystems are facing serious hypoxia challenges because of high nutrient loadings from point and non-point sources. Therefore, the use of Vertical sub-surface flow constructed wetlands (VSSFCWs) for mitigating environmental water pollution through enhanced nitrification and denitrification processes. They offer a promising nutrient removal mechanism while also providing an ideal environment for the growth of perennial grasses. VSSFCWs not only play a role in providing safe sanitation, they produce biomass that can be harvested and used to produce fodder and biofuel in this complex global world. Biochar offers best habitation for microorganisms to decompose organic matter. The potential of constructed wetland biomass for bioenergy production through carbon sequestration had been observed. Planted with common reed macrophytes to promote biodiversity, the 0.251 m2 constructed wetland has been treating 0.03 cubic meter per day (CMD) of farm wastewater. The overall aboveground biomass was 1277 kg and total carbon content 471 kg at the peak of aboveground accumulation for the system emergent macrophyte. Incinerating of 80% biomass harvested of experimental area in an incineration plant could produce 2446 kWh for one month.

Seasonal nutrient uptake of plant biomass in a constructed wetland treating piggery wastewater effluent

2013 ◽  
Vol 67 (6) ◽  
pp. 1317-1323 ◽  
Author(s):  
S. Y. Lee ◽  
M. C. Maniquiz ◽  
J. Y. Choi ◽  
S. M. Jeong ◽  
L. H. Kim
Keyword(s):  
Nutrient Uptake ◽  
Constructed Wetland ◽  
Nutrient Removal ◽  
Plant Biomass ◽  
Treatment Plant ◽  
Nutrient Content ◽  
Surface Flow ◽  
Temperate Climate ◽  
Piggery Wastewater ◽  
Concentration Changes

The surface-flow constructed wetland (CW) located in Nonsan City, South Korea, and constructed as the final stage of a piggery wastewater treatment plant that aims to treat high nutrient content effluent during dry days and stormwater runoff during wet days was monitored from October 2008 to November 2011. This research investigated the seasonal nutrient uptake of plant biomass in the CW and nutrient concentration changes in each treatment region under monsoon and temperate climate conditions. Results showed that the mean total nitrogen removal during summer (June to August) was higher by 13% than in spring (March to May), while total phosphorus removal was higher by 22% in fall (September to November) than in winter (December to February). All plants in the CW reached their maximum biomass coverage and weight in summer and minimum growth in winter. The highest N and P content in plants occurred in September with 583.2 g/m2 and August with 62.0 g/m2, respectively. Based on the results, it is recommended that the harvesting of plants should be conducted during the time of the peak nutrient uptake and before the plants release the nutrient content back to the CW. The dependence of nutrient removal efficiency on plants is not so significant. In order to increase the nutrient removal rate by plant uptake, it is suggested that the treatment regions in the CW be covered by plants.

Phosphorus retention and mass balance in an integrated constructed wetland treating domestic wastewater

2015 ◽  
Vol 29 (2) ◽  
pp. 298-306 ◽  
Author(s):  
Mawuli Dzakpasu ◽  
Miklas Scholz ◽  
Valerie McCarthy ◽  
Siobhán Jordan
Keyword(s):  
Mass Balance ◽  
Constructed Wetland ◽  
Domestic Wastewater ◽  
Phosphorus Retention ◽  
Integrated Constructed Wetland

scholarly journals Treatment of Piggery Wastewater by Three Grass Species Growing in a Constructed Wetland

2017 ◽  
pp. 75-83 ◽  
Author(s):  
Supaporn Pongthornpruek
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetland ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Oxygen Demand ◽  
Surface Flow ◽  
Grass Species ◽  
Vetiver Grass ◽  
Piggery Wastewater ◽  
Wastewater Quality

The study aimed to investigate the efficiency of piggery wastewater treatment by the surface flow constructed wetland with three different grass species; bulrush (Scirpus spp.), cattail (Typha angustifoliaL.), and vetiver grass (Vetiveria zizanioides L.). All pilot units were used for wastewater treatment by the flowing surface water system, giving a system carrying capacity of several 0.18 m3 d-1 of HLR with a 5 day hydraulic retention time (HRT). The results showed that the cattail pilot showed improvement in several wastewater quality indicators: biochemical oxygen demand (BOD), chemical oxygen demand (COD) and total kjeldahl nitrogen (TKN) with efficiencies of 80.59, 84.11 and 88.08 %, respectively. The vetiver grass was most efficient of the three grasses in treating total phosphorus (TP). The efficiency of constructed wetland treatment using bulrush and cattail for TP was not significantly different. The piggery wastewater treatment with a 5 day HRT was able to reduce the dirtiness in wastewater but ultimately was unable to meet the wastewater quality standard. Thus, the periods for hydraulic retention time should be increased to establish the optimal retention time for effective wastewater treatment.

Nitrogen mass balance in a constructed wetland treating piggery wastewater effluent

2014 ◽  
Vol 26 (6) ◽  
pp. 1260-1266 ◽  
Author(s):  
Soyoung Lee ◽  
Marla C. Maniquiz-Redillas ◽  
Jiyeon Choi ◽  
Lee-Hyung Kim
Keyword(s):  
Mass Balance ◽  
Constructed Wetland ◽  
Wastewater Effluent ◽  
Piggery Wastewater
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