MICHAEL RUBY
Architects at Burke Ave, Seattle, WA
License number
Alaska AELM8359
Issued Date
Jun 10, 1992
Category
Architects, Engineers and Land Surveyors
Address
Address
4128 Burke Ave N, Seattle, WA 98103
Professional information
Sludge Treatment System
US Patent:
5428906, Jul 4, 1995
Filed:
Jan 5, 1994
Appl. No.:
8/177439
Inventors:
Bart T. Lynam - Edmonds WA
Gerald F. Nelson - Portland OR
David H. Meese - Portland OR
Ronald V. Peterson - Seattle WA
Michael G. Ruby - Seattle WA
Alan White - Portland OR
Gerald F. Nelson - Portland OR
David H. Meese - Portland OR
Ronald V. Peterson - Seattle WA
Michael G. Ruby - Seattle WA
Alan White - Portland OR
Assignee:
PCL Environmental, Inc. - Bellevue WA
Sludge Management, Inc. - Seattle WA
Sludge Management, Inc. - Seattle WA
International Classification:
F26B 700
US Classification:
34379
Abstract:
A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted with a sorter into a sorted product comprising oversized, undersized, and standard sized product. A portion of the sorted product is recycled for mixing and sizing in a mixer with the dewatered sludge cake solids. To control dust and odors, cyclones and a condenser remove a substantial portion of the gaseous particulate matter and condensable gases from the converter, and any remaining noncondensates are burned in the heat source flame. A waste oil burning heat source supplies heat energy to the dryer. The heat source exhaust gas by-products are filtered in a bag house using a conditioner additive, such as lime or sodium bicarbonate, which may be reclaimed and supplied to the standard sized product to serve as a pelletizing binder, to enhance the fertilizer nutrient value, or to enhance the fertilizer shelf life.
Sludge Treatment System
US Patent:
5279637, Jan 18, 1994
Filed:
Oct 23, 1990
Appl. No.:
7/601906
Inventors:
Bart T. Lynam - Edmonds WA
Gerald F. Nelson - Portland OR
David H. Meese - Portland OR
Ronald V. Peterson - Seattle WA
Michael G. Ruby - Seattle WA
Alan White - Portland OR
Gerald F. Nelson - Portland OR
David H. Meese - Portland OR
Ronald V. Peterson - Seattle WA
Michael G. Ruby - Seattle WA
Alan White - Portland OR
Assignee:
PCL Environmental Inc. - Bellevue WA
Sludge Management, Inc. - Seattle WA
Riedel Waste Systems, Inc. - Portland OR
Sludge Management, Inc. - Seattle WA
Riedel Waste Systems, Inc. - Portland OR
International Classification:
C05F 700, C02F 1100
US Classification:
71 12
Abstract:
A method of converting industrial, domestic or other sludge, into a pelletized or granular fertilizer, as well as a sludge converter for practicing the method. The sludge is dewatered to form sludge cake solids which are dried in a dryer, and then sorted with a sorter into a sorted product comprising oversized, undersized, and standard sized product. A portion of the sorted product is recycled for mixing and sizing in a mixer with the dewatered sludge cake solids. To control dust and odors, cyclones and a condenser remove a substantial portion of the gaseous particulate matter and condensable gases from the converter, and any remaining noncondensates are burned in the heat source flame. A waste oil burning heat source supplies heat energy to the dryer. The heat source exhaust gas by-products are filtered in a bag house using a conditioner additive, such as lime or sodium bicarbonate, which may be reclaimed and supplied to the standard sized product to serve as a pelletizing binder, to enhance the fertilizer nutrient value, or to enhance the fertilizer shelf life.