Development of Chemical Precipitation Purchased Equipment 

Costs:

Chemical Feed Systems

Purchased Equipment Costs are the sum of the following cost elements:

(1) Pump Costs

(2) Tank Costs

(3) Chemical Feed System Costs

(4) Mixer Costs

(5) Clarifier Costs

(6) Filter Press Costs

(7) Sand Filter Costs

Each cost component includes the cost of freight and associated ancillary equipment such as piping, valves, and 

controllers.

This telephone contact report supports EPA’s development of cost element (3) by providing purchase costs and 

information regarding chemical feed systems used in the Steam Electric cost model.
Project No.: 0172.08.029.044 DISTRIBUTION

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Project Name: Steam/Cost/Compliance Modeling

TELEPHONE CALL RECORD

 Outgoing Call

Date: 04/05/2011 Time: 1:00 pm EST

Company Name: EnPro Technologies

 

Contact Name: Troy Litherland

Phone No : (816) 350-5223

Email: tlitherland@enpro-tech.com

Name: Kavya Kasturi ERG

GENERAL SUBJECT: Vendor cost request for chemical feed systems for a chemical precipitation wastewater treatment system.

TOPICS DISCUSSED AND ACTION TAKEN

On April 5, 2011 at 1:00 pm I contacted EnPro Technologies to obtain costs for chemical feed systems needed 

for chemical precipitation wastewater treatment systems for FGD wastewater. I was directed to Mr. Troy 

Litherland. I explained to Mr. Litherland that we are working on conceptual level costing of a chemical 

precipitation wastewater treatment system to treat FGD (flue gas desulfurization) wastewater from steam 

electric power plants, and as a part of this project we are trying to collect cost information on different 

components or units of a chemical precipitation system. I discussed the types of chemicals we expected would 

be added to the treatment systems.

Mr. Litherland stated that the approximate cost of a liquid feed point would be $15,000 per feed point. This cost 

includes the peristaltic pump, controls, typical accessories, and an additional pump for redundancy. For ferric 

chloride, a feed point could add up to 50 gallons/hour. For polymer, the feed point could add up to 20 

gallons/min of polymer solution which contains 0.5% neat polymer. Organosulfide is expected to be similar to 

polymer for the feed point. For acid, double containment piping would be used. Mr. Litherland stated the liquid 

feed systems require a 0.5 hp motor.

For lime feed, a hydrate lime silo with volumetric feeder would cost approximately $350,000. The silo volume 

is 2,000 cubic feet.

Mr. Litherland stated that a liquid feed system weighed no more than 500 lbs and its dimensions are 

approximately 3’x3’x5’. Mr. Litherland estimated freight costs assuming shipment from Kansas City to the 

Northeast. For liquid feed systems, he estimated freight costs to be under $300. For bulk feed systems, the 

freight cost depends on the size of the silo. For silos under 12’, a regular truck can be used for shipment and the 

estimated cost is approximately $10,000. For larger silos, the cost is approximately $30,000. 

Mr. Litherland stated that liquid chemicals could be stored in 55 gallon drums, 275 gallon totes, or in bulk 

storage tanks. Dry chemicals could be stored in 50 lb bags, 2,000 lb bulk bags, or storage silos. He stated that 

plants typically operate 14-30 days of storage and for non-critical operations, a 15 day supply is reasonable. The 

storage duration may also depend on proximity to the chemical supplier.
Project No.: 0172.08.029.044 DISTRIBUTION

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Project Name: Steam/Cost/Compliance Modeling

TELEPHONE CALL RECORD

 Outgoing Call

Date: 04/20/2011 Time: 4:50 pm EST

Company Name: EnPro Technologies

 

Contact Name: Troy Litherland

Phone No : (816) 350-5223

Email: tlitherland@enpro-tech.com

Name: Kavya Kasturi ERG

GENERAL SUBJECT: Vendor cost request for chemical feed systems for a chemical precipitation wastewater treatment system.

TOPICS DISCUSSED AND ACTION TAKEN

On April 20, 2011 at 4:50 pm I contacted Mr. Troy Litherland to follow up on our previous call. 

I asked Mr. Litherland about chemical storage tanks. He stated that tanks were a separate cost and range from 

$8,000 to $20,000. He said chemical feed rates would be required for better estimates. He also stated that totes 

could hook up directly to the pump.

Mr. Litherland provided additional information on the lime feed system. The system includes a silo, volumetric 

feeder, mix tank, control system and 2 slurry pumps (40-60 gpm). The second pump is included for redundancy. 

Mr. Litherland estimated the cost to be approximately $300,000 to $325,000, including a cost of $25,000 to 

$30,000 for the pumps.

For hydrochloric acid, Mr. Litherland said the feed point could feed up to 50 gallons/hour. He expected that one

feed point would be sufficient based on that feed rate.
Project No.: 0172.08.029.044 DISTRIBUTION

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Project Name: Steam/Cost/Compliance Modeling

TELEPHONE CALL RECORD

 Outgoing Call

Date: 06/30/2011 Time: 11:00 am PDT

Company Name: EnPro Technologies

 

Contact Name: Troy Litherland

Phone No : (816) 350-5223

Email: tlitherland@enpro-tech.com

Name: Kavya Kasturi ERG

GENERAL SUBJECT: Vendor cost request for chemical feed systems for a chemical precipitation wastewater treatment system.

TOPICS DISCUSSED AND ACTION TAKEN

On June 30, 2011 at 11:00 am I contacted Mr. Troy Litherland with additional questions on the feed systems. 

Mr. Litherland stated that for a system containing two small peristaltic pumps, a silo, and a volumetric feeder, 

the low end of the price range would be $200,000-$250,000. A conservative cost estimate would be $300,000. 

The system would require 3-4 days start up time and a cost of $4,000-$5,000 for training and start up.

For liquid feed systems, Mr. Litherland said a small size system could be used for feed rates under 100 gal/hour 

and would cost $5,000. For feed rates greater than 100 gal/hour, the cost of a feed point would be $15,000.