WATER TREATMENT ENGINEER

Your tasks

Operate and maintain all factory water systems in a CNC precision machining environment — including waste-coolant treatment, oily-water treatment, wastewater treatment, and DI water supply — ensuring stable operation and compliance with Thai environmental discharge regulations. KEY RESPONSIBILITIES Oily-Water & Lubricant Treatment Before Discharge ●Collect and treat all oily-water streams from the factory (coolant drag-out, floor wash-down, hydraulic leaks) before discharge. ●Operate oil-water separation and demulsification equipment; ensure Oil & Grease in effluent meets Thai DIW standard (≤ 5 mg/L). ●Arrange licensed disposal of oily sludge and spent lubricant in compliance with Thai hazardous-waste regulations. Wastewater Treatment & Regulatory Compliance ●Operate the wastewater treatment plant (WWTP); monitor effluent quality (pH, BOD, COD, SS, Oil & Grease, heavy metals) against Thai DIW discharge standards. ●Submit effluent samples to an accredited lab on schedule; prepare and file mandatory reports (Form Ror.3) to the Department of Industrial Works (DIW). ●Maintain the factory discharge permit records; support ISO 14001 audits and external regulatory inspections. DI Water & General Utilities ●Operate DI water system (softener, RO, resin tanks) and cooling tower; maintain dosing and water quality within spec. ●Maintain water-treatment equipment (pumps, filters, dosing systems) and coordinate with the Maintenance team.

Requirements

1. ●Bachelor's degree in Chemical Engineering, Environmental Engineering, or a related field.
2. ●1–4 years of experience in water treatment or utilities in a factory environment.
3. ●Basic knowledge of waste-coolant handling: tramp-oil separation and correct disposal of spent coolant.
4. ●Familiar with oily-water treatment and Thai DIW wastewater discharge regulations; knowledge of Form Ror.3 reporting is a plus.
5. ●Working knowledge of DI / RO water systems is an advantage.
6. ●Hands-on, proactive, and attentive to compliance requirements.
7. ●Good English communication; Thai / English bilingual preferred.
8. ●Comfortable with sampling, basic lab tests, and KPI tracking.