FIELD: oil impurity removal methods.
SUBSTANCE: invention relates to methods for adsorption cleaning of oil-polluted water and industrial waste waters by bringing them into contact with adsorbent, the latter being urban waste water solid sediment thermally pretreated for 10-20 min at 300-400оС. Exhausted adsorbent is reused. Adsorption capacity of the latter, when crude oil is collected from the water surface, is 1.9 to 3.3 and, when it is used for filtration of oil-containing industrial waste waters, 1.71-2.3.
EFFECT: increased sorption capacity.
3 tbl, 3 ex
| Title | Year | Author | Number |
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| METHOD OF PREPARING CARBON-MINERAL ADSORBENT | 1998 |
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| METHOD OF MAKING HYDROPHOBIC ADSORBENT FOR PURIFYING NATURAL WATER AND WASTE WATER FROM OIL PRODUCTS | 2012 |
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| CLEANING WATER OF LIQUID HYDROCARBONS | 2010 |
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RU2438987C1 |
