Facilities of TXI Cement
The largest burner of hazardous waste
in Texas, and possibly the nation, TXI has been burning hazardous waste
since 1987. It holds the nation's largest hazardous waste permit. For the
last few years it has been burning around 100,000 or more tons of waste a
year to supplement coal use. Four of its kilns, or furnaces, are energy
inefficient "wet process" ones that were initially built in the late 1950's
to mid-1960's to burn natural gas and then coal. It is the state's largest
cement plant as well.
According to 1999 TNRCC data, TXI was the largest single polluter in the
Dallas-Ft. Worth area, with almost 12,600 tons of Particulate Matter, or
dust, Volatile Organic Compounds, Sulfur Dioxide, Nitrogen Oxide and Carbon
Monoxide. It has four kilns and four 200-foot smokestacks. The plant dumps
waste in the form of "cement kiln dust" (CKD) on-site in limestone quarry.
It has no pollution control equipment other than the ESPs installed in the
early 1970's to control dust emissions.
TXI's new Kiln #5, opened in 2000, includes scrubbers and other kinds of
pollution controls not found on the four older kilns at TXI.
It is a more modern "dry process" kiln. Kiln #5 is not permitted to burn
hazardous waste, using gas and coal instead. With the operation of Kiln #5,
TXI is the largest cement plant in the U.S. When the larger Kiln #5 is
operating, two of the older, more polluting kilns are supposed to be idled
to prevent exceeding air quality standards. However the remaining two will
be allowed to keep burning hazardous waste.
Chemicals Listed in TXI Toxic Release Inventory Emissions/87-98:
Acetone Ethylene Glycol Allyl Alcohol Ethylene Oxide Analine Hydrochloric
Acid Benzene (44,000lb/96) Isobutyrldehyde 1,3-Butadiene (14,000lb/96)
Manganese/Compounds 1,2-Butylene Oxide Methanol Biphenyl 2-Methooxyethanol
Butryaldehyde Methyl Acrylate Butyl Alcohol and N-Butyl Alcohol Methyl Ethyl
Ketone (1400lb/96) "Certain /Glycol Ethers" Methyl Isobutyl Ketone
2-Chloroacetophene Methyl Methacylate Chlorobenzene (3200lb/96) Methyl tert-Butyl
Ether Chloroform Napthalene (6500lb/96) Chlorotrifluoromethane Nickel/Nickel
Compounds Chromium/Chromium Compounds 2-Nitropropane p-Cresol Phenol
(1700lb/96) Cumene Styrene (6800lb/96) Cyanide/Cyanide Compounds Sulphuric
Acid Cyclohexane Tetrachloroethylene Dichlorobenzene Toluene (18,000lb/96)
1,2-Dichlorobenzene 1,1,1-Trichloroethane Dichloromethane
1,2,2-Trichloroethane Diethanolamine 1,2,4- Trimethylbenzene 2-Ethoxyethanol
Vinyl Acetate Ethyl Acrylate Xylene Ethyl Benzene m-Xylene/o-Xylene
Zinc/Zinc Compounds
TXI
Toxic Release Inventory Totals for 1998
- Stack emissions: 70,000 lbs
- Land releases: 643,0000 lbs
1999 Totals for "Conventional" Pollutants Inventoried by State:
- Particulate Matter 294 tons Sulfur Dioxide 5316 tons Nitrogen Oxide
5819 tons
- Volatile Organic Compounds 68 tons
- Carbon Monoxide 1032 tons
Current Permit Allowables:
- PM 1095 tons/yr
- Sulfur Dioxide 8074 tons/yr
- Nitrogen Oxide 7105 tons/yr
- VOCs 93 tons/yr
Toxic Metals Regulated by Permit:
Antimony Lead Arsenic Mercury Barium Selenium Beryllium Silver Cadmium
Thallium Chromium Zinc
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