These water purification systems are used for treating surface and underground water. The main component of this equipment, the ultrafiltration membrane module, can remove macro-molecular organics, suspended solids, colloidal particles and microorganisms in water, as well as decrease the content of COD, turbidity, SDI, bacteria, cryptosporidium, etc. The water purified by our water filtration system meets the national standards on drinking water quality (GB5749-2006).