发明名称 |
Lime and fly ash stabilization of wastewater treatment sludge |
摘要 |
This invention provides a process meeting the EPA's PFRP standard for WWTS treatment thereby producing a readily usable end-product in either soil-like form or semi-impermeable low load bearing, mass form. The process includes mixing WWTS with lime and fly ash, to cause a temperature increase to above 70 degrees C. for at least 30 minutes and to cause the pH to exceed 12 for at least 2 hours. The end-product may be compacted to produce an semi-impermeable, durable mass or the soil-like product may be used as landfill cover material.
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申请公布号 |
US5277826(A) |
申请公布日期 |
1994.01.11 |
申请号 |
US19910786563 |
申请日期 |
1991.11.01 |
申请人 |
BROWNING FERRIS INDUSTRIES |
发明人 |
BURNS, HOWARD;GREMMINGER, LARRY |
分类号 |
C02F11/18;(IPC1-7):C02F1/68 |
主分类号 |
C02F11/18 |
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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