Description:
University of Phayao undertook a contract to repair and improve the wastewater treatment system and it also provided the maintenance services for the wastewater treatment system in the building every month to ensure that the area that they serve is effectively drained. There is also a duty to make provision for the emptying of those sewers, normally through sewage treatment works, or where appropriate, through discharges direct to watercourses.
Additional evidence link:
[1] http://ereportmatra80.com/frm80_12.aspx
[2] https://drive.google.com/file/d/1gkW69l_uPmwsp-Cg4kFSt4Ap1OuvkXAL/view
[3] http://www.medsci.up.ac.th/greenoffice/assets/document/65/4-2-2-65.pdf
[4] https://drive.google.com/file/d/1z7QRvbuUk_3Eebdq5pp8AOEDa6ClQHOJ/view
wastewater treatment system
wastewater treatment system
Wastewater treatment by artificial swamp wastewater treatment system
Solar powered aeration turbines for wastewater treatment
Solar powered aeration turbines for wastewater treatment