FIELD: sorbents. SUBSTANCE: composite sorbent is provided based on humic acids chemically bound to silica matrix by way of cocondensation reaction. Weight ratio of silica to humic acids ranges from 1:1 to 1.1:1. Sorption capacity with regard to heavy metal ions $$$ varies from 2.6 to 4.4 mmol/g. EFFECT: improved heavy metal sorption capacity.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING COMPOSITE HUMIN-CONTAINING SORBENT WITH SILICA MATRIX | 1997 |
|
RU2131296C1 |
| METHOD OF ION-EXCHANGE PURIFICATION OF SEWAGE WATERS AND TECHNOLOGICAL SOLUTIONS FROM METAL IONS | 2013 |
|
RU2550192C2 |
| METHOD OF OBTAINING MAGNETIC AFFINITY SORBENT FOR SEPARATION OF RECOMBINANT PROTEINS | 2013 |
|
RU2540312C1 |
| PROCEDURE FOR EXTRACTION OF NICKEL FROM SOLUTIONS AND FOR PURIFICATION FROM IMPURITIES | 2010 |
|
RU2430981C1 |
| IRON-MAGNESIUM COMPOSITE FOR WASTEWATER TREATMENT | 2022 |
|
RU2800460C1 |
| INORGANIC SPHERICALLY GRANULATED COMPOSITE ZIRCONIUM HYDROXIDE-BASED SORBENT AND METHOD OF PREPARATION THEREOF | 1996 |
|
RU2113024C1 |
| METHOD OF PURIFYING WASTE WATER FROM PETROLEUM PRODUCTS | 2011 |
|
RU2483028C1 |
| METHOD OF OBTAINING COMPOSITION SORBENT | 2018 |
|
RU2675866C1 |
| METHOD OF EXTRACTION OF CADMIUM AND ZINC FROM NATURAL AND WASTEWATER | 2016 |
|
RU2622204C1 |
| METHOD FOR GROUP EXTRACTION OF HEAVY METALS AND MODIFIED SORBENT THEREFOR | 2013 |
|
RU2546734C1 |
