Leachate treatment (landfill leachate treatment, leachate generated from waste collection and process);Mining industry (coal mining, ore mining, CTX);Petrochemical industry (PTA wastewater, fracking wastewater);Renewable energy industry (water and WW from lithium battery industry, WW from photovoltaic industry);Power industry (flue gas desulfurization WW, cooling tower blow-down WW);Steel and coking industry;Food and beverage industry;Pharmaceutical industry;Wastewater from Industrial parks; Seawater desalination;Municipal wastewater treatment (including retrofit and upgrading for phosphors and nitrogen removal);