... and land area. Thus, considering the municipal wastewater treatment situations in China and the existence problems, the development of municipal wastewater treatment systems with small land area ... lifestyle of the people, is one of the major problems, which affect China’s environmental quality and the sustainable development. Municipal wastewater treatment in China faces serious shortage of ... appropriate operational parameters of recycle ratio, hydraulic retention time (HRT) of the regeneration tank, HRT of the adsorption tank and solids retention time (SRT) of the system were 40%, 2 h,...