Obtained a utility model patent with patent number ZL 2017 2 0735450.4.

Basic Principles

Adopting a softening+microfiltration process to remove most of the hardness in wastewater, avoiding frequent scaling of the reverse osmosis system, and improving the recovery rate of the reverse osmosis membrane.

Technical advantage

(1) Remove most of the calcium, magnesium, and silicon ions, and ensure that the total hardness of the effluent (calculated as CaCO3) is ≤ 100mg/L;

(2) Low operating pressure, normal working pressure is only 0.1MPa, low energy consumption;

(3) Adopting ePTFE microfiltration membrane with strong hydrophilicity, the membrane flux can reach 300-500 LMH;

(4) The microfiltration membrane can withstand immersion in 20% hydrochloric acid and 30% liquid alkali;

(5) Adopting a combination of air and water backwashing, with air shaking and less likely to clog;

(6) High operational stability and low operating costs.

Applicable fields

Zero discharge of industrial wastewater such as leachate from incineration plants, desulfurization wastewater, circulating wastewater, oily wastewater, and fluorine-containing wastewater.

Application Cases

Liupanshui Municipal Solid Waste Incineration Power Generation Project Leachate Treatment Project and Mengcheng County Municipal Solid Waste Incineration Power Generation Project Leachate Treatment Station Project.