# E C 

# / R Incorporated Providing Environment al Technical Support Since 1989

501 Eastowne Drive, Suite 25 0  Chapel Hill, North Carolina 2751 4

Telephone: (919)484

- 0222  Fax: (919) 484

- 0122 

# CONTACT REPORT

Date/Time Project Name Project Number

August 22 , 20 1 1 4 : 30p m Ferroalloys RTR MME

- 4 11

EC/R Originator Contact Phone Number

Bradley Nelson Daryl Lipscomb

– Albemarle ( 404 ) 216

- 0976

General Subject

The purp ose of the telephone call was to discuss mercury control options for an electric arc

furnace equipped with a wet scrubber. Mr. Lipscomb believes that activated carbon

injection prior to the wet scrubber would be able to reduce mercury emissions by 90

perc ent using an estimated 1 to 1.5 lb per million cubic feet of exhaust gas activated carbon

inje ction rate using their B

- PAC product

. The B

- PAC activated carbon is a brominated

powdered activated carbon that has more Hg capture surface area than activated c arbon,

and the B

- PAC product captures mercury as soon as it enter the gas stream. He stated that

the captured mercury would remain absorbed to the activated until it is heated above 400

degrees Fahrenheit. Therefore, the captured solids in the wet scrubb er would not be

hazardous waste and can be disposed of in a landfill (e.g., the captured solids would be able

to meet TCLP standards for non

- hazardous waste). Additional information with regards to

the mercury control of the EAF was sent by the vendor and is included as an attachment to

this contact report.

### Attachment 1. Email Correspondence

From: Daryl.Lipscomb@albemarle.com

Sent: Tuesday, August 30, 2011 8:23 AM

To: Brad Nelson

Cc: 'Beth Friedman'; Ron.Landreth@albemarle.com;

Daryl.Lipscomb@albem arle.com

Subject: RE: Infomation Request for Mercury Control

Hello Brad, the wet particulate scrubber should be able to capture at

least 90% of the PAC. Ron, please

verify this as well.

Regarding price of Albemarle's B

- PACTM, this depends of volume, contract

commitment, etc. But in

general ~ $1/lb..

Daryl Lipscomb

Commercial Development & Sales Manager

Albemarle Corporation

(Mobile) 404

- 216

- 0976

(Fax) 404

- 549

- 7257

Email: daryl.lipscomb@albemarle.com

website: http://www.albemarle.com/me rcury

"Brad Nelson" <nelson.brad@ecrweb.com>

08/29/2011 10:30 AM

To

<Daryl.Lipscomb@albemarle.com>

cc

"'Beth Friedman'" <friedman.beth@ecrweb.com>,

<Ron.Landreth@albemarle.com>

Subject

RE: Infomation Request for Mercury Control

Daryl,

Thank you for the information. I have a couple more questions regarding

the carbon injection. Would the wet

scrubber be able to capture approximately 90% of the injected carbon or

would an additional particulate capture

device be required? What is the cost of the B

- PAC product?

Thanks again for you r help.

Bradley Nelson

EC/R Incorporated

Chemical Engineer

501 Eastowne Drive, Suite 250

Chapel Hill, NC 27514

Office: 919

- 484

- 0222 Ext. 323

nelson.brad@ecrweb.com

From: Daryl.Lipscom b@albemarle.com [mailto:Daryl.Lipscomb@albemarle.com]

Sent: Friday, August 26, 2011 3:25 PM

To: Brad Nelson

Cc: 'Beth Friedman'; Ron.Landreth@albemarle.comSubject: Re: Info r mation Request for Mercury Control

Hello Brad, we've trialed at an util ity site previously that had a wet

particulate scrubber with similar temperatures. We were able to achieve

excellent results (>90% Hg reduction) using our B

- PACTM product.

I would recommend injecting Albemarle's B

- PAC upstream of the wet

particulate s crubber.

Based on the details below I believe we would be able to achieve 90%

mercury reduction at an injection rate of less than 50 pounds per hour of

our B

- PAC product.

Please let me know if you have additional questions.

Daryl Lipscomb

Comm ercial Development & Sales Manager

Albemarle Corporation

(Mobile) 404

- 216

- 0976

(Fax) 404

- 549

- 7257

Email: daryl.lipscomb@albemarle.com

website: http://www.albemarle.com/mercury

From: "Brad Nelson" <nelson.brad@ecrweb.com>

Sent: 08/22/2011 05:12 PM

To : <daryl.lipscomb@albemarle.com>

C c : "'Beth Friedman'" <friedman.beth@ecrweb.com>

Subject : Info r mation Request for Mercury Control

Daryl,

I appreciate your time this afternoon to discuss mercury control for a EAF

at a ferroalloy manufactu ring facility. As we discussed, we are looking

to reduce the mercury emissions from a wet venturi scrubber by

approximately 90 percent. A summary of the exhaust information is as

follows:

Volumetric flow rate 185,000 acfm

Exhaust temperature 13 5 F

Exhaust moisture 6.9%

Mercury concentration 1.39E

- 05 gr/dscf (1.99E

- 9 lb/dscf) assumed

80% elemental, 20% mercuric chloride

PAH concentration 3.43E+05 ng/dscm

The inlet temperature is approximately 350 F. Let me know if you need any

a dditional information.

Bradley Nelson

EC/R Incorporated

Chemical Engineer

501 Eastowne Drive, Suite 250

Chapel Hill, NC 27514

Office: 919

- 484

- 0222 Ext. 323

nelson.brad@ecrweb.com