The wastewater from event 1) from the neutralization is split into a sewage system, evaporative drying of production line 2 to separate salt water and sediment out. It is designed to reduce the volatile matter (Total Dissolved Solids) in wastewater (sewage system. The production line 1 has a designed water treatment systems, evaporative dry. Can not install a septic system evaporative dry) by evaporated water is condensed and circulating the water to be reused in new units neutralized. The waste water from one activity) Washing to 3) and 8) will be sent to treatment to the sewage system of the production lines 2 to adjust the pH value. And treatment to meet the Hemaraj Eastern Industrial Estate (Map ta phut) set before being sent to a clarifier effluent (Wastewater Hold Up Tank) and sent to landfill inspection (Inspection Pit) and then sent to the central wastewater treatment. of Hemaraj Eastern Industrial Estate (Map ta phut).