Some Features of the Coagulation Water Treatment Using Dust of Electric Furnace Steelmaking

Sukhanov, Evgeny; Sapronova, Zh.A.; Свергузова, С. В.; Фомина, Е. В.; Denisova, L. V.; Sapronov, D.V.

doi:10.18412/1816-0395-2017-1-24-29

Cited by 6 publications

(1 citation statement)

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“…But in practice, the use of slags is an undetermined environmental problem. There have been published works in which the studies have been carried out on the use of metallurgical waste products as reagents, coagulants or flocculants without a modification or after their activation for waste water treatment from heavy metals [6][7][8][9][10]. The ferric-containing coagulant is obtained from the waste pickling solutions by oxidation with sodium hypochlorite [11].…”

Section: Introductionmentioning

confidence: 99%

Application of ferric-silicon coagulant-flocculant of electric steel smelting slag for leachate treatment of communal solid waste landfills

Vasilenko¹,

Koltun²

2018

IJET

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In the Russian Federation the most common way of disposal of waste products is landfill. One of its drawbacks is the formation of highly contaminated filtration water. It was made an attempt to treat the leachate with a ferric coagulant-flocculant obtained from the electric steel smelting slag after the acid treatment with hydrochloric acid (the modification time of 1.5 N HCl at 40 °C is no more than 1 hour). To improve the treatment efficiency of highly contaminated leachate it was analysed a simultaneous application of the obtained coagulant-flocculant and conventional coagulants Al(SO4)2 and ferric chloride). It was shown a decrease in the values of the chemical oxygen demand (COD) by 94.4%, the color of the leachate by (91.3%). It was studied the physical and chemical properties of the filtration waters of the waste disposal landfill, as well as the dependence of the formation of the precipitable sediment volume on the portion of the injected coagulants and flocculant.

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Section: Introductionmentioning

confidence: 99%