To support environmentally friendly waste management, Hasanuddin University (Unhas) has Sewage Treatment Plants (STPs). Unhas STPs procurement began in 2012 and was developed in stages as needed.
Through an interview on Thursday (13/10), Dr. Roslinda Ibrahim, S.P., M.T., as a member of the UI Green Metric Waste Division team, explained that Unhas domestic wastewater is collected and treated separately from toxic sewage and rainwater. Domestic sewage is treated at the sewage treatment plant (STP), while toxic sewage treatment is handled by third parties.
Furthermore, Roslinda added that domestic sewage treatment in Indonesia nationally refers to the Regulation of the Minister of Environment and Forestry Number: P.68/Menlhk/Setjen/Kum.1/8/2016. The regulation states that every business or activity that produces domestic sewage must treat the domestic sewage it produces. In general, the technology used in domestic sewage treatment is to utilise microorganisms to decompose polluting substances in the form of organic compounds.
“Procurement of the Sewage Treatment Plant (STP) on the Unhas campus began in 2012 and was developed in stages as needed. Twelve STPs function to treat sewage generated from activities in the campus area. In general, the STPs use anaerobic-aerobic biofilter treatment technology,” explained Roslinda.
The waste from the STPs is used to irrigate plants and infiltrate into the soil through drainage designed for water infiltration. The STP effluent from the Centre of Technology (COT) building and from the Centre of Student Activity (CSA) building, as well as from the student centre, sports centre, student dormitory, and mosque, flows into the primary drainage. Unhas Hotel STP waste is channelled into Lake Unhas, and then the lake water is used to water plants on campus.
Editor: Ahmad
