Water Pollution Control and Ecological Restoration Exhibition Area: Wastewater/sewage treatment, sludge disposal, chemical agents and materials, membranes and membrane components/membrane separation equipment, water purification equipment, seawater desalination, filtration instruments and materials, filter presses, aerators, water supply and drainage systems and pipe networks, pumps, valves and accessories, instruments and meters, water meters and detection devices, metering and billing management systems, process control and automation, sponge city solutions, hydrology/water conservancy/hydropower equipment, river and lake black-odor water treatment and ecological restoration, etc.