FIELD: filter materials. SUBSTANCE: dolomite is ground and classified to give fraction 0.3-1.5 mm. Resulting intermediate is baked in air atmosphere at 500-900 C for 1 to 3 h, cooled to ambient temperature and treated with solution containing 0.01- 0.2 M Mn(II) solution. Solution is then discarded and material is dried at 100-200 C. Material can be used for treatment of natural household-utility water and waste waters. EFFECT: increased sorption capacity of material when removing iron and manganese from water to achieve values below allowable values. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYTIC SORBENT FOR PURIFICATION OF WATER MEDIUM | 2016 |
|
RU2617492C1 |
| METHOD OF OBTAINING GRANULATED FILTERING CHARGE OF INDUSTRIAL TECHNOLOGICAL FILTERS FOR WELL WATER PURIFICATION | 2013 |
|
RU2528253C1 |
| FILTERING MATERIAL FOR DRINKING WATER PURIFICATION | 2014 |
|
RU2574754C1 |
| WATER CLEANING-DESTINED SORPTION-FILTRATION MATERIAL AND A METHOD FOR PREPARATION THEREOF | 2003 |
|
RU2229336C1 |
| METHOD OF MAKING WATER TREATMENT SORBENT | 2011 |
|
RU2483798C1 |
| METHOD OF PRODUCING SORBENT BASED ON DOLOMITE | 2019 |
|
RU2711635C1 |
| METHOD OF PRODUCTION OF FILTER MATERIAL FOR WATER PURIFICATION | 2003 |
|
RU2238788C1 |
| METHOD FOR PREPARATION OF CATALYTICALLY ACTIVE GRAINY FILTERING MATERIAL | 2007 |
|
RU2363536C1 |
| FILTERING MATERIAL FOR TREATMENT OF WATER FROM MANGANESE AND IRON, METHOD FOR IT PREPARING AND METHOD FOR TREATMENT OF WATER FROM MANGANESE AND IRON | 2004 |
|
RU2275335C2 |
| SORBENT FOR CLEANING AQUEOUS MEDIA FROM HEAVY METALS AND PREPARATION METHOD THEREOF | 2014 |
|
RU2592525C2 |
