Zero Liquid Discharge (ZLD) technology is designed for industrial and municipal wastewater treatment systems to achieve complete recovery and reuse of liquid within the wastewater, ensuring zero liquid discharge into the environment.
Implementing ZLD offers numerous advantages. Firstly, the recycling process can convert wastewater into usable water, reducing water resource costs. It also minimizes pollutant discharge during wastewater treatment, significantly reducing the impact on the surrounding environment. This, in turn, enhances the company’s environmental image and corporate social responsibility. Such eco-friendly investments often boost a company's competitiveness, especially in today’s global movement towards sustainable development. Additionally, ZLD technology helps companies comply with Thailand’s increasingly stringent environmental regulations, avoiding environmental fines and potential legal liabilities.
As ZLD technology becomes widely adopted in the industrial sector, many Thai companies are actively seeking to purchase advanced equipment. Technologies and equipment from the United States, Japan, and Europe are popular choices in the market, renowned for their high efficiency and reliability.
MBR System (Membrane Bioreactor) and DAF System (Dissolved Air Flotation System): At the initial stages of a ZLD system, these systems effectively remove suspended solids and organic pollutants from wastewater. This ensures preliminary purification of wastewater before it enters subsequent treatment stages, reducing the load on downstream equipment.
Screw Press, Plate and Frame Filter Press, and Belt Filter Sludge Dewatering Machine: These solid-liquid separation devices handle sludge in wastewater, separating water from sludge and reducing its volume. The separated sludge can then be pumped to storage facilities using a sludge pump.
RO (Reverse Osmosis) Pure Water System and EDI (Electrodeionization) Ultrapure Water System: These are core technologies within ZLD. The RO system removes dissolved salts and impurities from water using high-efficiency membranes, while the EDI system further purifies the water filtered by RO, producing ultrapure water. This ultrapure water can be reused in industrial production, converting wastewater into a reusable water source and achieving complete zero discharge.
Additional Related Equipment: Blowers and aerators, pH/ORP controllers, and glass-fused-to-steel (GFS) tanks.