FIELD: paper-and-pulp industry. SUBSTANCE: invention that can be used at sulfate production enterprises consists in that lime sludge is freed of alkalis by washing with equivalent amounts of preheated aqueous suspension of deposits from waste disposal plants treating industrial and/or municipal sewages or their mixtures with excess activated sludge. Suspension of the latter is used in concentrations 1.3% and higher. Ratio of activated sludge and deposits can vary within a wide range. EFFECT: achieved complete utilization of waste disposal plant deposits and simplified process. 3 cl, 1 dwg, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING LIQUID NONSULFUROUS ORGANIC FUEL | 1997 |
|
RU2115697C1 |
| METHOD OF PROCESSING EXCESSIVE ACTIVATED SLUDGE | 1995 |
|
RU2079454C1 |
| METHOD OF WASTE WATER PURIFICATION | 0 |
|
SU833570A1 |
| METHOD OF PREPARING ALKALINE DIGESTING COMPOSITION FOR MAKING CELLULOSE-CONTAINING FIBROUS SEMIFINISHED PRODUCT | 0 |
|
SU1043215A1 |
| METHOD OF PREPARATION OF COOKING LIQUID FOR PRODUCTION OF FIBROUS INTERMEDIATE PRODUCT | 1995 |
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| METHOD OF PRODUCING LIQUID SULFUR-FREE ORGANIC FUEL | 1996 |
|
RU2109795C1 |
| CLOSED WATER CIRCULATION METHOD FOR PRODUCTION OF CELLULOSE AND BOARD | 0 |
|
SU1773270A3 |
| METHOD OF TREATING EXCESSIVE ACTIVE SLURRY | 0 |
|
SU1038287A1 |
| METHOD OF PREPARING SULPHATE DIGESTING LIQUOR | 0 |
|
SU953050A1 |
| METHOD OF CLOSED WATER CIRCULATION IN PRODUCTION OF UNBLEACHED SULFATE PULP AND CARDBOARD | 1999 |
|
RU2158328C1 |
