-Project progress management, waste water from the production line 1, as measures determined by the waste water from activities 1 and 3) 8)) to be sent to treatment of the waste water treatment system of waste water treatment project, which is a system of physical and chemical treatments to work together to provide the basis on which the Eastern industrial estate hemaraj (map Ta phut). Before sending it to the lowest sewage pond. (Wastewater Tank Hold Up), and send it to the BO checking (Inspection Pit) and then sent to a central waste water treatment system of the Eastern industrial estate hemaraj (map Ta phut) (Figure 2.5).