News
Current position:Home > News > > Industry news > DetailsThe effect of ferric chloride in sewage treatment
AddTime:2011/5/3 15:47:49 Hit:
Nature: brown liquid. Relative density 1.42. Easy immiscible with water, acidic aqueous solution, with oxidation corrosion effect on metals. Molten iron trichloride solvent dilution, hydrolysis produce iron hydroxide precipitation, strong cohesion.
Purpose: available drinking water purifier and waste water purification processing of precipitant. Can also be used for radio printed circuit and stainless steel industry as etching agent.
National standards: industrial-grade ferric trichloride GB/T1621-2008 used for sewage treatment, to remove the heavy metals in the water and phosphate.
Ferric chloride used in wastewater treatment to remove the heavy metals in the water and phosphate.
Liquid ferric chloride is drinking water, industrial water, industrial wastewater, sewage and swimming pool circulating water treatment of efficient flocculant, cheap has significant precipitation of heavy metal, sulfide, decolorization, deodorization and oil removal, sterilization, phosphorus removal effect and so on, to reduce the effluent COD and BOD. Compared with other waste water treatment flocculant,
Its main characteristics are as follows:
Instead of a liquid or solid aluminium sulphate and polyaluminium chloride and polymeric ferric sulfate flocculant, processing costs by 30% above;
Has a good ability of flocculation and sedimentation rate higher than that of series of aluminum salt flocculants (such as aluminium sulphate and polyaluminium chloride, etc.), and the formation of the alum flowers dense;
Produce less quantity of sludge, greatly saves the sludge treatment cost;
To adapt to the water pH range, for 4 ~ 12, optimum pH range 6 ~ 10
Solid ferric trichloride strong water imbibition, hydrolysis of ferric iron ion has strong oxidizing, can replace the price of copper, iron, stainless steel, so it is widely used in hardware industry, etching effect, the use of this technology, greatly improve the metal processing industry, processing and communication efficiency, make a lot of precision stamping impossible, speed, become possible.