On the Treatment of Domestic Sewage by PSAF Flocculant;

The PSAF floccule is produced with sulfate aluminum, sulfate iron and water glass as the main material.

Based on aluminium sulphate,ferric sulphate and silicic acid,polysilicate aluminium ferric (PSAF) being used as a flocculant has been synthesized.

A new composite poly-ferric aluminum silica sulfate (PFASS) coagulant is prepared by using pyrite residual, calcium aluminates, water glass, and sulphuric acid as raw materials and through acidic leachig, neutralization, and polymerization.

A new type of inorganic polymer coagulant,poly-ferric aluminum silica sulfate(PFASS),was prepared by using fly ash,crap iron and waste sulfuric acid as raw materials under the conditions of reaction temperature 95—90℃,reaction time 3h,liquid solid ratio 3.

A new poly-silicate ferric-aluminum(PSFA)was prepared by using water glass,ferric chloride and aluminum sulfate as raw materials.

Study on the preparation of polyaluminum ferric silicate from coal ash;

A new type of flocculant nano-polyaluminum ferric silicate (Nano-PAFSI) was prepared by ultrasonic waves using sodium silicate, iron trichloride and aluminium chloride.

Preparation of polysilicate aluminum ferrite coagulant from pyrite slag and poor quality ferric tailings;

Preparation of high efficient coagulant of polysilicate aluminum ferrite using red mud in a alumina plant;

If the city sewage which had been treated by traditional activated sludge method was deeply treated by a new high-efficiency coagulant-polysilicate aluminum ferrite,the city sewage can be purified effectively.