Exhibit 99.1

P.O. Box 717        Pittsburgh, PA 15230-0717 (412) 787-6700

From:      Gail A. Gerono

                Vice President, Investor Relations

                412 787-6795

— NEWS RELEASE —

CALGON CARBON ANNOUNCES THIRD QUARTER RESULTS

Board Declares Dividend

PITTSBURGH, PA — October 21, 2004 – Calgon Carbon Corporation (NYSE:CCC) announced results for the third quarter ended September 30, 2004.

Sales for the third quarter were $83.0 million versus third quarter 2003 sales of $66.6 million, an increase of 24.7%. The company reported net income of $1.3 million, as compared to $1.2 million for the third quarter of 2003, a 3.8% increase. Earnings per share on a diluted basis for the third quarter of 2004 were $0.03, the same as for the comparable period in 2003. Sales of the former Specialty Products Division of Waterlink, Inc. (Waterlink), which Calgon Carbon acquired in February 2004, were $14.0 million for the third quarter of 2004. Foreign currency translation had a $2.7 million positive effect on sales for the quarter due to the stronger Euro.

For the third quarter of 2004, sales from the Activated Carbon and Service segment increased 15.5% versus the comparable period in 2003. Excluding the contribution from Waterlink, sales in this segment declined 5.5%. In 2003, the company provided activated carbon for a new drinking water treatment facility in Asia and services to a single large customer for perchlorate removal from drinking water. There were no replacements for these sales in the third quarter of 2004.

Equipment sales increased 110.0% in the third quarter of 2004 as compared to the third quarter of 2003. Excluding Waterlink sales, this segment was up 67.1% due to higher sales of solvent recovery and ion exchange systems.

A 5.3% increase in Consumer sales for the third quarter of 2004 was attributable to higher charcoal sales. However, most of the increase was due to the impact of foreign exchange.

Consolidated gross profit before depreciation and amortization as a percentage of sales for the third quarter of 2004 was 27.4% as compared to 30.0% for the comparable period in 2003. The decrease was due to mix and competitive pricing pressures in the Activated Carbon and Service segment.

Operating expense for the third quarter of 2004, including $1.8 million related to Waterlink, increased 8.8%. As a percentage of sales, operating expense for the third quarter of 2004 was 17.2% versus 19.7% for the third quarter of 2003. Excluding the Waterlink expenses, operating expense declined by 4.9% quarter-over-quarter. This decrease was attributable to aggressive cost reduction efforts.

Sales for the nine months ended September 30, 2004 were $251.4 million, versus $208.7 million for the comparable period in 2003, an increase of 20.4%. Waterlink’s sales contribution for the nine months ended 2004 was $37.2 million. Year-to-date, foreign currency translation had a positive impact of $8.4 million on sales.

For the nine months ended September 30, 2004, the company reported net income of $5.0 million, versus $2.5 million for the nine months ended September 30, 2003, a 102.5% increase. Earnings per share on a diluted basis for the nine months ended September 30, 2004 were $0.13 versus $0.06 for the comparable period in 2003.

Calgon Carbon’s board of directors declared a dividend of $0.03 per share. Dividends will be payable to shareholders of record as of November 10, 2004, and will be payable on December 2, 2004.

Commenting on the quarter, John Stanik, president and chief executive officer of Calgon Carbon said, “The third quarter was more difficult than we anticipated. In Europe, there were contract delays for high-margin specialty carbons. In the U.S., the temporary closure of our carbon manufacturing plant in Mississippi due to a hurricane and rising energy prices also negatively affected results. We responded to these challenges by placing additional focus on our on-going cost reduction efforts which enabled us to achieve acceptable bottom-line results.

“In the third quarter we made excellent progress in implementing our new products strategic initiative. We completed development of a new UV-based wastewater disinfection system and of a family of adsorption systems for removal of arsenic from drinking water. Both product lines were launched in October, and we plan to introduce additional new products and expand existing product lines during the fourth quarter.”

Mr. Stanik concluded, “As we near the end of the first year of our strategic plan, we are confident that the changes we have implemented and those we plan to make will strengthen Calgon Carbon’s position in the marketplace going forward.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in services and solutions for making air and water cleaner and safer. The company employs approximately 1,200 people at 18 operating facilities and 27 sales and service centers worldwide.

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. This document contains certain statements that are forward-looking relative to the company’s future strategy and performance. They involve known and unknown risks and uncertainties that may cause the company’s actual results in future periods to be materially different from any future performance.

Calgon Carbon Corporation

Segment Data

Segment Sales	3Q04			3Q03			YTD 2004			YTD 2003
Carbon and Service		60,392			52,325			183,874			160,330
Equipment		15,239			7,242			39,909			22,182
Consumer		7,366			6,996			27,583			26,186
Total Sales (thousands)	$	82,997		$	66,563		$	251,366		$	208,698
Segment Operating Income (loss)*	3Q04			3Q03			YTD 2004			YTD 2003
Carbon and Service		8,302			7,522			24,980			21,112
Equipment		379			(615	)		(854	)		(2,284	)
Consumer		(155	)		4			1,788			1,385
Total Income from operations (thousands)	$	8,526		$	6,911		$	25,914		$	20,213

Calgon Carbon Corporation

Condensed Consolidated Balance Sheet

(Dollars in thousands)

(Unaudited)

	September 30, 2004		December 31, 2003
ASSETS
Current assets:
Cash and cash equivalents	$	4,948	$	8,954
Receivables		60,098		46,133
Inventories		60,044		51,811
Other current assets		27,651		24,210
Total current assets		152,741		131,108
Property, plant and equipment, net		131,084		128,956
Other assets		69,679		42,131
Total assets	$	353,504	$	302,195
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Short-term debt	$	604	$	604
Other current liabilities		57,269		51,851
Total current liabilities		57,873		52,455
Long-term debt		84,900		53,600
Other liabilities		46,584		33,988
Total liabilities		189,357		140,043
Minority interest		346		279
Total shareholders’ equity		163,801		161,873
Total liabilities and shareholders’ equity	$	353,504	$	302,195

Calgon Carbon Corporation

Condensed Consolidated Statement of Income

(Dollars in thousands except per share data)

(Unaudited)

	Quarter Ended September 30,						Nine Months Ended September 30,
	2004			2003			2004			2003
Net Sales	$	82,997		$	66,563		$	251,366		$	208,698
Cost of Products Sold		60,234			46,566			179,623			145,535
Depreciation and Amortization		5,656			4,745			16,812			14,534
Selling, Administrative & Research		14,237			13,086			45,829			42,950
		80,127			64,397			242,264			203,019
Income from Operations		2,870			2,166			9,102			5,679
Interest Income (Expense) - Net		(770	)		(392	)		(1,903	)		(1,272	)
Equity Income (loss) in Calgon Mitsubishi Chemical Corporation		(69	)		(20	)		848			38
Other Income (Expense) - Net		(895	)		(250	)		(2,583	)		(1,491	)
Income Before Income Taxes and Minority Interest		1,136			1,504			5,464			2,954
Provision (benefit) for Income Taxes		(103	)		331			546			650
Income Before Minority Interest		1,239			1,173			4,918			2,304
Minority Interest		27			47			48			148
Net Income	$	1,266		$	1,220		$	4,966		$	2,452
Net Income per Common Share
Basic and Diluted	$	.03		$	.03		$	.13		$	.06
Weighted Average Shares Outstanding (Thousands)
Basic		39,054			39,006			39,038			38,998
Diluted		39,367			39,233			39,352			39,123