Ferrous sulfate is divided into 7 water and water, seven water ferrous sulfate is commonly known as green blue and green crystal or granule, mainly used for iron fertilizer, pesticide, pigment, medicine and so on, in addition to chromatography reagents. It is a by-product of the production of a rare metal product by sulfuric acid method.

Ferrous sulfate molecular formula FeSO4.7H2O, molecular weight: 278.05 is the production of by-products output a rare metal products in the process of sulfuric acid method, the product appearance is pale green or yellowish green crystalline solid, odorless, relative density 1.898, the melting point of 64 DEG C. Soluble in water (50 degrees 48.6g/100ml hot water) decomposition of ferric oxide, corrosion, weathering in dry air will be wet air oxidation. Adding a certain amount of alkaline water can adjust the pH value, and the water suspended organic combination, and accelerated precipitation, mainly used in water purification and industrial wastewater treatment, and has a bactericidal effect.

Ferroussulfatemono molecular formula FeSO4.H2O molecular weight: 169 white powder, the bulk density of 750-850ke/m water soluble to ethanol fand.

Use of industrial grade ferrous sulfate

The use of ferrous sulfate in wastewater treatment can be used as flocculant, reducing agent, precipitating agent and so on.

1, as a reducing agent: ferrous sulfate is a strong reducing agent, electroplating plant water content of chromium wastewater can be reduced to six valent chromium chromium, instead of expensive sodium sulfite, Sodium Bisulfite, sulfur dioxide, etc.. The advantage is that it does not produce toxic carcinogenic chlorine (mainly two hydrogen sulfide), low price.

In 2, as the most widely used Flocculants: ferrous sulfate as flocculant, flocculant as it has the following advantages: fast settling velocity, granular sludge, sludge volume is small and dense, the color removal effect is good (very suitable for printing and dyeing, washing and other textile wastewater treatment), non-toxic and good biological growth (very suitable for sewage treatment system has biochemical process in the following), without changing the original technology, low price, as a flocculant, ferrous sulfate can replace the polymeric aluminum, basic aluminum chloride, poly ferric aluminum sulfate, ferric chloride, etc.. Printing and dyeing, electroplating and other wastewater treatment is the preferred product.

The principle of chemical reaction of ferrous sulfate in water treatment application: 6FeSO4+KClO3+3H2O==2Fe2 (SO4) 3+KCl+2Fe (OH) 3 Fe (OH) 3 is a gelatinous substance, which can adsorb the suspended matter in the water and play the role of purifying water. The appropriate amount of water can regulate alkaline pH, and organic combination of suspended solids in water, and accelerate the precipitation, mainly used in water purification and industrial wastewater treatment, also has a bactericidal effect, ferrous sulfate as flocculant, the flocculation effect is good, has the very good decolorization ability, but also with the removal of heavy metals, oil, phosphorus removal and sterilization function in particular, decolorization of dyeing wastewater, and the removal of COD ferrite electroplating wastewater by co precipitation of ferrous sulfate has obvious effect, can be used as food additives, pigments, electronic industrial raw materials, hydrogen sulfide deodorant, soil improvement agent, such as industrial catalysts.

4, as a precipitating agent: sulfide and phosphate can be generated, so as to remove sulfide, phosphate and so on, for example, ferrous sulfate treatment of printing and dyeing plant wastewater.

Henan dragon water treatment materials Co., Ltd. spot production and supply of 7 water ferrous sulfate, manufacturers direct production welcome you to come to buy technical advice website www.hnlongzheng.com contact Mr. Wei, 15638867698