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11/25
Ai r Hoving Eq uipmen t
In the existing plant, two of the four air blowers are driven by
electric motors and two are driven by gas engines. As indicated
in Section II-A, the gas engines are in only fair condition and
require considerable maintenance. Since nearly the full capacity
of the existing blowers is required for adequate treatment of the
present average flow, little down time of these engines can be
tolerated.
One possible solution for this problem is to replace these engines
with electric motors. This would cost about $165,000. The gas
engines might then be used to drive generators to produce electric
power for the plant. This is discussed in greater detail in Section
II-C •
. Hydrasieve
Based on preliminary results from the use of a small test unit in
the Fort Wayne pilot plant, improved primary treatment might be
achieved by addition of screening units such as Bauer Hydrasieves
ahead of the existing primary tanks. Since these units create
an additional head requirement of about five feet, it would be
necessary to replace the existing raw sewage pumps to make the
system operable. The estimated cost of the total installation is
$627,000. Since this is a rather expensive option and since the
effect on the subsequent activated sludge process is unknown, it
(
is not recommended that these units be included in the present
expansion program.
J
Object Description
| Title | Master plan for sewers (pt. 3) |
| Alternative Title | Water pollution control plant |
| Contributor |
Henry B. Steeg & Associates Fort Wayne (Ind.). Board of Public Works |
| Topic | Public Utilities |
| Subject | Sewage disposal--Indiana--Fort Wayne |
| Geographical Coverage | Fort Wayne, Indiana |
| Date of Original | January 1972 |
| Time Period | 1900-1999 |
| Source | Print version: Master plan for sewers. Pt. 3: Water pollution control plant. (Indianapolis, Ind.: Henry B. Steeg & Associates, 1972), 1 v. |
| Additional Availability | Print version might be available at IPFW Helmke Library. See online catalog. |
| Relation | Third of three parts of Master plan for sewer. Pt. 1, Relief sewers, digital barcode is 30000126499916; Pt. 2, Sanitary sewers, digital barcode is 30000126499924; |
| Rights | Copyright Indiana University-Purdue University Fort Wayne, 2006- . All rights reserved. May not be reproduced without permission. For information regarding reproduction and use see: http://cdm16776.contentdm.oclc.org/cdm/about/collection/p16776coll1/ |
| Date Digitally Created | April 17 2012 |
| Digital Publisher | Walter E. Helmke Library, Indiana University-Purdue University Fort Wayne |
| Digitization Specifications | This pdf file was derived from 400 dpi, 1-bit, uncompressed TIFF images that were scanned from the originals using a Fujitsu 5750C scanner with Adobe Acrobat 9.0 Professional scanning software, black and white configuration. |
| Content Type | Text |
| Digital Format | text/pdf |
| Collection | Fort Wayne Area Government Information |
| Identifier | 30000126499932 |
| File Name | 30000126499932.pdf |
Description
| Title | Page 78 |
| Transcript | 11/25 Ai r Hoving Eq uipmen t In the existing plant, two of the four air blowers are driven by electric motors and two are driven by gas engines. As indicated in Section II-A, the gas engines are in only fair condition and require considerable maintenance. Since nearly the full capacity of the existing blowers is required for adequate treatment of the present average flow, little down time of these engines can be tolerated. One possible solution for this problem is to replace these engines with electric motors. This would cost about $165,000. The gas engines might then be used to drive generators to produce electric power for the plant. This is discussed in greater detail in Section II-C • . Hydrasieve Based on preliminary results from the use of a small test unit in the Fort Wayne pilot plant, improved primary treatment might be achieved by addition of screening units such as Bauer Hydrasieves ahead of the existing primary tanks. Since these units create an additional head requirement of about five feet, it would be necessary to replace the existing raw sewage pumps to make the system operable. The estimated cost of the total installation is $627,000. Since this is a rather expensive option and since the effect on the subsequent activated sludge process is unknown, it ( is not recommended that these units be included in the present expansion program. J |
