# Development of Chemical Precipitation Purchased Equ ipment

Costs: Chemical Feed Systems

This telephone contact report supports EPA’s development o f purchased equipment cost equations for chemical

feed systems by providing purchase costs and information regar ding chemical feed systems used in the Steam

Electric cost model.Project No.: 0172.08.029.044 DISTRIBUTION

Page _1_ of __1_

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 s ystems for a chemical precipitation wastewater treatme nt system.



## TOPICS DISCUSSED AND ACTION TAKEN

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

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

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

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

electric power plants, and as a part of this project we a re 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 liqu id feed point would be $15,000 per feed point. This cost

includes the peristaltic pump, controls, typical accessor ies, 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 po lymer. 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 fee der 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 freigh t costs to be under $300. For bulk feed systems, the

freight cost depends on the size of the silo. For silo s 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 stor ed 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 chemi cal supplier.Project No.: 0172.08.029.044 DISTRIBUTION

Page _1_ of __1_

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 s ystems for a chemical precipitation wastewater treatme nt 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 s tated 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 li me 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

Page _1_ of __1_

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 s ystems for a chemical precipitation wastewater treatme nt 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 s mall peristaltic pumps, a silo, and a volumetric feeder

, the low end of the price range would be $200,000-$250,000. A conservat ive 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.