informacion de clarifier

8/18/2019 informacion de clarifier

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“

Slide-$

Final larifier !ehabilitation – onstruction Photos


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Slide6%



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Slide6"



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Slide6B



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Slide63

Field 8erification "tudy ' 5oals

Guly %% , )P8 Service !nc. ?Gohn 8lser, P.8.@ hired to Studyperformance of new ow


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Slide6+

Field 8erification "tudy – onclusions

ow


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Slide6-

Phased Approach for Final larifier !ehabilitation

Based on documented performance of the new ow


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Slide66

Phased Approach for Final larifier !ehabilitation!nstallation contract developed by and bid annually by the BS:aintenance and 8ngineering 0epartments.

)ontract installation re5uirements developed by :aintenance

0epartment without use of outside consultants. ll contract e5uipment, supplies and labor inspected directlyby :aintenance 0epartment.

(ehabilitation of tan/s based on severity of e9isting tan/conditions ?i.e. Worst an/s ;irst@.

!nstallation contract revised annually, prior to bidding, toaddress problems encountered in previous years contract ?i.e.)hange Frders, )ontract )larifications, 8tc@


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Slide67


;ootnotes4". 85uipment price held for years at A#3,667 per ;).. Price increase to A$7,%%% per ;) due to escalating Steel Price.

3. !nstallation )ompleted without )hange Frders.+. ;irst pro ect to include Weir Wall (ehabilitation

Startear

;inal)larifiers

Purchase)ost

!nstallation)ost

otal Pro ect)ost

Per *nit)ost

%% 7B, #B A"$-,%%% A7+,+63 A 6$,+63 A"3+,73"

%%3 3 ,+ ,+B,6B " A33+,6## A"+ ,3 % A+77,%%# A""$, -

%%+ ,7 ,# ,"B " A33+,6## 3 A"-", %% A+#-,### A" ",+7

%%- " ,- , B,-B A3#7,#3+ 3 A"-",#%% A-3$,63+ A"3+,$%$

%%6 6 ,"B A"$+,%%% + A 6",7$% A+--,7$% A 7,#$-

)ost to 0ate A",++6, "% A7#",-7 A , 7,7# A"3$, 36


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Slide6#


!nstallation )ontract revision include the following activities4

:aterial 0isposal

8lectrical )onnections

;loor leveling and concrete brea/outs

Scum trough piping.

Weir Plate d ustment

Weir Plate Pipe Support (eplacement

Sandblasting and Painting of all :etal Surfaces in ;inal 8ffluent an/.


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Slide6$

Phased Approach for Final larifier

!ehabilitation – Photos

*pper Weir Wall Supports


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Slide7%



Lower Weir Wall Supports ?under s/irt@


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Slide7"



(ehabilitated *pper Weir Wall Supports


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Slide7B



(ehabilitated Weir Wall


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Slide73



(ehabilitated Lower Weir Wall Supports ?under s/irt@


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Slide7+


!ehabilitation'e9t Phase 2 Weir and an/ (ehabilitation. ctivities that may beincluded are the following4

Weir Plate d ustment

Weir Plate Pipe Supports 2 both above and bellow Weir S/irt

Sandblasting and painting of all metal surfaces.

;inal )larifier ;loor )oating ?re


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“Providing a high level of sanitary benefits to the communities we serve.”

7ames "6rabac9 – #aintenance /epartment!oberta 5aie6 P.,.: 7ane r6 – Process /epartment"al 2o&empio ;!et.


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ngel (iveraSuperintendent of :echanical :aintenance

Buffalo Sewer uthority$% West ;erry St.Buffalo, ' "+ "3

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