FIELD: waste water treatment.
SUBSTANCE: invention relates to cleaning acid waste waters and can be used in various industry fields wherein detoxification of sulfuric acid-containing waste waters is required. Neutralization process involving averaging and neutralization by filtration through the bed of dicalcium silicates-containing filter material is characterized by that neutralization is preceded by preliminary averaging of waste water and. As filter material containing dicalcium silicates, common-curing foamed concrete with density 500-800 kg/m3 is used and neutralization is carried out to pH 11-13.
EFFECT: speeded-up neutralization process due to performed one-step neutralization of effluents and extended post-neutralization pH value range.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| METHOD OF WASTE WATER PURIFICATION | 0 |
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| METHOD OF PURIFYING ACIDIC SLIGHTLY MUDDY MINE AND UNDERDUMP WATER | 2008 |
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RU2386592C2 |
