Polyester textile factory produces a large amount of wastewater during the production process. The main pollutants are emulsified fats and oils (methyl phosphate, fatty acids, polyethylene glycol grease), colorants, surfactants, oils and fats. These wastewater pollutants are difficult, time consuming and costly to treat using common biological oxidation processes. LEFILTER's design and construction team utilizes screens to directly intercept impurities in the water, removing suspended and particulate matter from the water, reducing turbidity, purifying the water, and reducing the production of bacteria, algae, and rust.

Newly brewery always produces a little cloudy beer due to lack of management experience. It was found that there was a lot of residue in the fermentation broth, and after adding fine filtration equipment to remove the residue from the fermentation broth, the turbidity phenomenon no longer appeared, and the production capacity of the beer was significantly increased, and the sales volume was also significantly increased.

Vineyards are plagued by water shortages. LEFILTER's shallow sand filters, water softening equipment, and activated carbon filters effectively remove impurities from the raw water, while reverse osmosis filtration systems ensure safe drinking water for the local people.