发明名称 |
METHOD OF COMPOSTING OF SEWAGE WATER SLUDGES |
摘要 |
agriculture; applicable in preparation of fertilizers from sewage sludges polluted with heavy metals. SUBSTANCE: sewage water sludges are mixed with additives of high moisture capacity and gas absorption and obtained mixture is formed into compost heap round perforated pipeline. Static aerated heap is coated from top and sides with layer of additives providing oxidizing conditions. Arranged in heap base is layer of additives producing reducing conditions. Located under heap base are filtering and watertight layers. Heap inside is periodically blown with air from perforated pipeline. Method provides for reduction of compost toxicity with preserved material capacity, Acceleration of compost aging due to preliminary heating of compost mixture and obtaining heavy metals concentrate by localization and evaporation of settled metal-bearing compounds. EFFECT: higher efficiency. 3 cl, 1 dwg
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申请公布号 |
RU2159756(C2) |
申请公布日期 |
2000.11.27 |
申请号 |
RU19990101283 |
申请日期 |
1999.01.19 |
申请人 |
GRISHIN VIKTOR KHARITONOVICH;STEPANOV VLADIMIR JAKOVLEVICH;PAVLOV ALEKSEJ PETROVICH;VOLOSHIN JURIJ IVANOVICH;GRISHIN PAVEL VIKTOROVICH;PAVLOVA OL'GA VIKTOROVNA |
发明人 |
GRISHIN V.KH.;STEPANOV V.JA.;PAVLOV A.P.;VOLOSHIN JU.I.;GRISHIN P.V.;PAVLOVA O.V. |
分类号 |
C05F7/00;(IPC1-7):C05F7/00 |
主分类号 |
C05F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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