FIELD: chemistry.
SUBSTANCE: invention relates to purification of drainage and discharge water and can be used in irrigation farming when designing hydro-reclamation systems with a closed water circulation cycle. The method of preparing drainage and discharge water for crop irrigation includes removing mechanical impurities, organic substances, heavy metal ions and excess salts. The first step includes removing mechanical impurities and organic substances by treatment in a separator. The second step includes removing heavy metal ions and excess salts in a filter well, having filter elements based on coal production wastes, having a cylindrical shape with a cavity inside which is filled with a rice husk-based sorbent placed in pouches made of basalt fabric.
EFFECT: invention improves the quality of preparing drainage and discharge water for crop irrigation, widens the range of using drainage and discharge water having various chemical composition, and simplifies the process of mounting filter elements.
2 tbl
| Title | Year | Author | Number |
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| METHOD OF PREPARATION OF SPILL AND DRAIN WATER FOR AGRICULTURAL USE | 2017 |
|
RU2654763C1 |
| METHOD FOR PURIFICATION OF THE DRAINAGE WATER OF A RICE IRRIGATION SYSTEM | 2020 |
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| RICE CULTIVATION METHOD | 2024 |
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| METHOD OF TREATING DRAINAGE EFFLUENT AND DEVICE TO THIS END | 2009 |
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| METHOD OF DRAINAGE OUTFLOW PURIFICATION AND DEVICE FOR ITS REALISATION | 2012 |
|
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| SYSTEM OF COLLECTOR-DRAINAGE WATER QUALITY CONTROL | 1999 |
|
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| CONSTRUCTION FOR PURIFYING AND CONTROL OVER QUALITY OF DRAINAGE WATER | 2007 |
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RU2358916C1 |
| WATER RESERVOIR MOUTH WATER PROTECTING INSTALLATION | 1993 |
|
RU2060970C1 |
| SEWER OF HYDROTECHNICAL AMELIORATION SYSTEMS | 2001 |
|
RU2214486C2 |
| CONTROL METHOD AND DEVICE FOR LOCAL TREATMENT OF DRAINAGE WATER | 2023 |
|
RU2812424C1 |
