Constructed Wetlands: The Green Technology for Municipal Wastewater Treatment and Reuse in Agriculture

2017 ◽  
pp. 189-239 ◽  
Author(s):  
Sohair I. Abou-Elela
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Municipal Wastewater ◽  
Green Technology ◽  
Municipal Wastewater Treatment

Area-based speciation kinetic analysis of the multipollutant removal in Constructed Wetlands to enhance its treatment efficiency

2021 ◽  
Author(s):  
Manoj Kumar ◽  
Rajesh Singh
Keyword(s):  
Wastewater Treatment ◽  
Kinetic Analysis ◽  
Constructed Wetlands ◽  
Municipal Wastewater ◽  
Zero Order ◽  
Pollutant Removal ◽  
Municipal Wastewater Treatment ◽  
Treatment Efficiency ◽  
First Order ◽  
Present Study Area

In the present study area-based, pollutant removal kinetic analysis was considered using the Zero-order, first-order decay and efficiency loss (EL) models in the constructed wetlands (CWs) for municipal wastewater treatment....

Treatment of the Domestic Sewage by the Lab-Scale Sub-Surface Horizontal-Flow Wetland

2011 ◽  
Vol 374-377 ◽  
pp. 1036-1039 ◽  
Author(s):  
Meng Lin ◽  
Yun Han
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Constructed Wetlands ◽  
Municipal Wastewater ◽  
Primary Standard ◽  
Treatment Plant ◽  
Shaanxi Province ◽  
Horizontal Flow ◽  
Municipal Wastewater Treatment ◽  
Isotherm Equation

Abstract：The constructed wetland is a new kind of wastewater treatment developing in recent years, which is very suitable for the regional characteristics of Shaanxi province. The design of the constructed wetlands is developed from the traditional sub-surface horizontal-flow wetlands (SSHFW). Two groups of wetlands were designed in parallel, and each single wetland can also became the vertical-flow wetland system. Aerating in front of the constructed wetlands is to study the removal efficiency of the organics. Test indicators contain SS、COD、Nitrogen、Phosphor and the rate of nitrification and de-nitrification. According to the experiments of the self-designed SSHFW, the removal efficiency of the SS, COD, NH4+-N、TN and TP were 92%, 82%, 40%, 46.2% and 70% respectively. The strength of nitrification and de-nitrification of the packing reached to 0.35mg/(kg.h) and 3.32mg/(kg.h). On the basis of the Langmuir adsorption isotherm equation, the adsorption quantity of coarse sand and gravel were 405.2mg/kg and 498.6mg/kg. The quality of the effluent met the primary standard of B-standard in the discharge standards of pollutants for municipal wastewater treatment plant (GB18918-2002).

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