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Due to the high price of CPVC 1/2" caps, other options for plate settler construction are being considered. Below is a cost analysis of other options that have been proposed.
Costs are based on one sedimentation tank.
Unknown macro: {toggle-cloak} CapandScrewAttachment">Unknown macro: {toggle-cloak} Cap and Screw Attachment
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|
Quantity |
Cost (lempira) |
Cost (Dollar) |
Total Cost |
Cost/sq ft |
Caps |
896 |
9 |
$ 0.48 |
$ 426.89 |
$ 8.71 |
Screws |
384 |
4 |
$ 0.21 |
$ 81.31 |
$ 1.66 |
Nuts |
384 |
0.75 |
$ 0.04 |
$ 15.25 |
$ 0.31 |
Lamina |
26 |
900 |
$ 47.64 |
$ 1,238.75 |
$ 25.28 |
Total |
|
|
|
$ 1,762.20 |
$ 35.96 |
One sheet of lamina is 900 Lempiras, and is 12 feet long. Each lamina in the plate settler is 3 feet long, so four lamina can be made from one sheet. The tank is 4.3 meters long, and there are lamina every 5 cm, so 86 lamina are needed, or 29 sheets per tank.
The tank dimensions are 14 feet long by 42 inches wide, giving an area of 49 square feet.
Unknown macro: {toggle-cloak} BoltandSpacerAttachment">Unknown macro: {toggle-cloak} Bolt and Spacer Attachment
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QuantityCost (lempira)Cost (Dollar)Total CostCost/sq ft12" stainless steel bolt52202.8786 $ 10.74 $ 558.48 $ 11.40Nuts1124 $ 0.21 $ 23.69 $ 0.82PVC Pipe56 feet4.96807 $ 0.26 $ 14.73 $ 0.30Lamina26900 $ 47.64 $ 1,238.75 $ 25.28Total
$ 1,835.65 $ 37.80
1/4" diameter, 12 inch stainless steel bolt price taken from Mcmaster.com (Part Number: 98827A381)
PVC pipe price taken from Mcmaster.com (Part Number: 48925K11)
Price of nuts were conservatively estimated knowing that 1 small nut used in the Cap and Screw cost .75 Lempira.
Unknown macro: {toggle-cloak} PipeandCouplingAttachment">Unknown macro: {toggle-cloak} Pipe and Coupling Attachment
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|
Quantity |
Cost (lempira) |
Cost (Dollar) |
Total Cost |
Cost/sq ft |
1/2" Coupling |
144 |
|
$ 0.20 |
$ 28.80 |
$ 0.59 |
1/2" PVC Pipe |
56 feet |
4.96807 |
$ 0.26 |
$ 14.73 |
$ 0.30 |
Lamina |
32 |
900 |
$ 47.59 |
$ 1,523.00 |
$ 31.08 |
Total |
|
|
|
$ 1,566.53 |
$ 31.97 |
The cost of couplings and pipe were taken off Mcmastercarr.com, and may not reflect actual prices in Honduras.
The couplings are 4 cm long, therefore lamina spacing is 4 cm rather than 5 cm. This means that a total of 36 twelve foot sheets of lamina are needed.
Unknown macro: {toggle-cloak} BrentwoodIndustriesCommercialProducts">Unknown macro: {toggle-cloak} Brentwood Industries Commercial Products
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IFR-6036 tube settler cost approximately $24 per square foot.
Plate settlers in 3' lengths and 42" widths would be approximately $48 per square foot.
Brentwood Ind. Tube Settlers & Plate Settlers
*These prices do not take consider the cost of shipping.