Biopurification of dairy farm wastewater through hybrid constructed wetland system: Groundwater quality and health implications

2021 ◽  
pp. 111426
Author(s):  
Pradeep Kumar Sharma ◽  
Kalpana Rausa ◽  
Anju Rani ◽  
Santanu Mukherjee ◽  
Manish Kumar
Keyword(s):  
Groundwater Quality ◽  
Constructed Wetland ◽  
Dairy Farm ◽  
Health Implications ◽  
Wetland System ◽  
Farm Wastewater

scholarly journals Removing Organic Matter and Nutrients from Pig Farm Wastewater with a Constructed Wetland System

2018 ◽  
Vol 15 (5) ◽  
pp. 1031 ◽  
Author(s):  
Celia De La Mora-Orozco ◽  
Irma González-Acuña ◽  
Ruben Saucedo-Terán ◽  
Hugo Flores-López ◽  
Hector Rubio-Arias ◽  
...  
Keyword(s):  
Organic Matter ◽  
Constructed Wetland ◽  
Pig Farm ◽  
Wetland System ◽  
Farm Wastewater

Assessment of microbial load removal potential of vertical constructed wetland systems treating dairy farm wastewater

2021 ◽  
pp. 127-145
Author(s):  
Deepa Minakshi ◽  
Swati Singh ◽  
Pradeep Kumar Sharma ◽  
Anju Rani ◽  
Piyush Malaviya
Keyword(s):  
Constructed Wetland ◽  
Dairy Farm ◽  
Microbial Load ◽  
Load Removal ◽  
Farm Wastewater

Using a compact combined constructed wetland system to treat agricultural wastewater with high nitrogen

2005 ◽  
Vol 51 (9) ◽  
pp. 47-53 ◽  
Author(s):  
S. Kantawanichkul ◽  
S. Somprasert
Keyword(s):  
Nitrogen Removal ◽  
Constructed Wetland ◽  
Rate Constants ◽  
Removal Rate ◽  
Operating Conditions ◽  
Horizontal Flow ◽  
Vertical Flow ◽  
Pig Farm ◽  
Wetland System ◽  
Farm Wastewater

The objectives of this study were to find appropriate conditions for nitrogen removal by a compact combined constructed wetland system and to evaluate the removal rate constant in a tropical climate. This study will present suitable operating conditions for a combined system to treat pig farm wastewater containing high ammonia-nitrogen. Four laboratory-scale combined constructed wetland units (0.5 × 1.0 × 1.0 m3): vertical flow vegetated bed over horizontal flow sand bed, were operated under an average temperature of 24 °C. Pig farm wastewater with COD and NH4+-N concentration of 1034 and 448 mg/L in average was fed to the system at different HLR from 2 to 8 cm/day. The performance of the system when operated with a vertical flow bed followed by a horizontal flow bed or vice versa did not show a significant difference but under high HLR, nitrogen removal efficiencies were clearly reduced. Nitrobacter and Nitrosomonas were found in a large number in vertical flow beds and the same for denitrifier bacteria in a horizontal flow beds. Removal rate constants for nitrification (kNH4-N) were 0.0413 m/d for H-Vmode and 0.0339 m/d for V-H mode. Removal rate constants for denitrification (kNOx-N) were 0.0979 m/d for H-Vmode and 0.0399 m/d for V-H mode, respectively.

Water Budget of Constructed Wetland System with Subsurface Vertical Flow in Sub-Humid Tropical Climate

2015 ◽  
Vol 1 (5) ◽  
pp. 235-242
Author(s):  
Édio Damásio da Silva Júnior ◽  
Rogério de Araújo Almeida ◽  
Elisa Rodrigues Siqueira ◽  
Ábio Roduvalho da Silva
Keyword(s):  
Constructed Wetland ◽  
Water Budget ◽  
Tropical Climate ◽  
Vertical Flow ◽  
Humid Tropical Climate ◽  
Wetland System

Municipal wastewater treatment with pond–constructed wetland system: a case study

2005 ◽  
Vol 51 (12) ◽  
pp. 325-329 ◽  
Author(s):  
X. Wang ◽  
X. Bai ◽  
J. Qiu ◽  
B. Wang
Keyword(s):  
Constructed Wetland ◽  
Municipal Wastewater ◽  
Municipal Wastewater Treatment ◽  
Oxidation Pond ◽  
System A ◽  
Treated Effluent ◽  
Wetland System ◽  
Oxidation Ponds ◽  
Better Than

The performance of a pond–constructed wetland system in the treatment of municipal wastewater in Kiaochow city was studied; and comparison with oxidation ponds system was conducted. In the post-constructed wetland, the removal of COD, TN and TP is 24%, 58.5% and 24.8% respectively. The treated effluent from the constructed wetland can meet the Chinese National Agricultural and Irrigation Standard. The comparison between pond–constructed wetland system and oxidation pond system shows that total nitrogen removal in a constructed wetland is better than that in an oxidation pond and the TP removal is inferior. A possible reason is the low dissolved oxygen concentration in the wetland. Constructed wetlands can restrain the growth of algae effectively, and can produce obvious ecological and economical benefits.

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