Nowadays global water quality pollution has become extremely serious, and solving water pollution has been
extremely urgent, so researches on water pollution solutions have become even urgent. And flocculating method is the
most traditional water purification method, research and create new high performance flocculating agent is one of flocculating
method inherent problems. The paper mainly describes adding iron, zinc two kinds of metal captions together in
polysyllabic acid, well controlling all aspects requirements in technology, researching and creating new water purification
substance—poly iron and zinc silicate sulfate flocculants (PFZSS). PFZSS making method is weighting proper amount
sodium silicate into container, and meanwhile putting it into water to dissolve, then utilizing dilute euphoric acid and sodium
hydroxide to adjust silicic acid solution pH value and arrive at regulated scope, letting it to activate and arrive at certain
time, slowly importing activated proper silica acid solution into moderate iron sulfate and zinc sulfate on the condition
of fully blending, and finally putting and curing for a while. And implement experiment research on how mixed solution
metal cations matching; making method, pH value, and silicon dioxide concentration these factors affect PFZSS
overall performance. PFZSS application mainly takes catering industry sewage solution as an example to get PFZSS has
very strong absorption capacity, owns good cleaning effects on extremely turbid catering industry treatment sewage COD
and turbidity acquiring, its reaction formed flock density is great, sedimentation rate is very fast, so PFZSS will have great
application prospects in the aspect of treating urban sewage.