Skip to main content
. 2021 Feb 15;280:111655. doi: 10.1016/j.jenvman.2020.111655

Table 2.

Three models of RTR in Jiaozhou.

Scenarios Characteristics
Image 4 (1) Municipal WWTP with sewer system Three-chamber septic tank toilets are constructed for each household in villages located near urban areas. FS is transported to WWTPs through the underground pipe network for professional treatment and resource recovery.
Image 5 (2) Township-level WWTP with local pipeline system Regional small centralized WWTPs are established among villages located away from urban areas and where a pipe network has been established. Three-chamber septic tank toilets are built for users in the surrounding villages. FS enters WWTP through the underground pipe network for professional treatment and resource recovery.
Image 6 (3) Village-level decentralized WWTP without pipeline system The villages are located away from urban areas, towns, industrial clusters. A three-chamber septic tank or double-vault funnel is installed in each household for the preliminary pretreatment of FS liquid. Afterward, the treated FS is transported to the treatment station by truck for professional treatment and resource recovery.