On-site domestic wastewater treatment system using shredded waste plastic bottles as biofilter media: Pilot-scale study on effluent standards in Bhutan

Ugyen Dorji, Pema Dorji, Ho Kyong Shon, Umakant Badeti, Cheki Dorji, Chimi Wangmo, Leonard D. Tijing, Jaya Kandasamy, S. Vigneswaran, A. Chanan, Sherub Phuntsho