Experimental Study on a Combined Process of Anaerobic Filter, Anoxic, Oxic and Constructed Wetland for Rural Domestic Sewage Treatment

Abstract

<div> <p>The right combination and sequence of treatment methods is the key to the successful handling of rural domestic sewage. This research aim was to carry out experimental study on the combined process and assess its efficiency, feasibility, robustness and suitability for rural domestic sewage treatment and explore the best treatment effect and operating parameters. The parameter optimized and controlled includes hydraulic retention time (HRT) and temperature during the entire research operations. The average COD, TN, NH4+-N and TP removal efficiency of the combined process was 78.2%, 70%, 76% and 87% respectively. Overall, the combined process proved to be efficient and suitable for rural domestic sewage treatment.</p> </div>

New Concept Design of Modified DEWATS System for Wastewater Treatment with both Horizontal Subsurface Constructed Wetland and Aquatic Plants Pond System in Military Barracks

“…At present, aimed at the places such as suburban, rural areas and the military barracks, where centralized wastewater treating process is difficult to be launched due to the terrain and non-proximity, so there is a great need for the development of decentralized wastewater treatment technology. Recently, decentralized wastewater treatment system has been gradually introduced and corresponding researches as well as small-scale demonstration projects have been constructed already [3][4][5][6]. It is necessary and meaningful to implement and promote the application of decentralized wastewater treatment to the military barracks.…”