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公开(公告)号：US08844157B2
公开(公告)日：2014-09-30
申请号：US13624635
申请日：2012-09-21
申请人： AGL Resources Inc.
CPC分类号： F26B7/00 , F26B11/04 , F26B11/0445 , F26B11/0481 , F26B23/001 , F26B23/022 , F26B23/10 , F26B25/005 , F26B25/007 , F26B25/06 , F26B2200/18 , Y10S71/903
摘要： Methods and systems are provided for drying wet biosolids to produce a class A biosolids. Generally described, the method of treating biosolids includes drying a wet biosolids in an indirect dryer to produce a partially dried biosolids and drying the partially dried biosolids in a direct dryer in series with and downstream of the indirect dryer to produce a class A biosolids. The indirect dryer and direct dryer may be operated at an average temperature of greater than about 100° C. and may have a total combined residence time of less than about 60 minutes. Also provided are systems for drying wet biosolids including an indirect biosolids dryer and a direct biosolids dryer in series. The methods and systems are particularly effective at reducing the moisture content of the biosolids from greater than 85% to less than 10% by weight.
摘要翻译： 提供了用于干燥湿生物固体以产生A类生物固体的方法和系统。 通常描述的是，处理生物固体的方法包括在间接干燥器中干燥湿生物固体以产生部分干燥的生物固体，并将干燥的部分干燥的生物固体干燥在与间接干燥器相连和下游的直接干燥器中，以产生A类生物固体。 间接干燥器和直接干燥器可以在大于约100℃的平均温度下操作，并且可以具有小于约60分钟的总合并停留时间。 还提供了用于干燥湿生物固体的系统，包括间接生物固体干燥器和直接生物固体干燥器。 所述方法和系统特别有效地将生物固体的含水量从大于85％降低到小于10重量％。
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公开(公告)号：US20130074357A1
公开(公告)日：2013-03-28
申请号：US13624635
申请日：2012-09-21
申请人： AGL Resources Inc.
CPC分类号： F26B7/00 , F26B11/04 , F26B11/0445 , F26B11/0481 , F26B23/001 , F26B23/022 , F26B23/10 , F26B25/005 , F26B25/007 , F26B25/06 , F26B2200/18 , Y10S71/903
摘要： Methods and systems are provided for drying wet biosolids to produce a class A biosolids. Generally described, the method of treating biosolids includes drying a wet biosolids in an indirect dryer to produce a partially dried biosolids and drying the partially dried biosolids in a direct dryer in series with and downstream of the indirect dryer to produce a class A biosolids. The indirect dryer and direct dryer may be operated at an average temperature of greater than about 100° C. and may have a total combined residence time of less than about 60 minutes. Also provided are systems for drying wet biosolids including an indirect biosolids dryer and a direct biosolids dryer in series. The methods and systems are particularly effective at reducing the moisture content of the biosolids from greater than 85% to less than 10% by weight.
摘要翻译： 提供了用于干燥湿生物固体以产生A类生物固体的方法和系统。 通常描述的是，处理生物固体的方法包括在间接干燥器中干燥湿生物固体以产生部分干燥的生物固体，并将干燥的部分干燥的生物固体干燥在与间接干燥器相连和下游的直接干燥器中，以产生A类生物固体。 间接干燥器和直接干燥器可以在大于约100℃的平均温度下操作，并且可以具有小于约60分钟的总合并停留时间。 还提供了用于干燥湿生物固体的系统，包括间接生物固体干燥器和直接生物固体干燥器。 所述方法和系统特别有效地将生物固体的含水量从大于85％降低到小于10重量％。
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