Texas Neutralization of Wastes: What you need to know

Governing Law and Regulations

Elementary neutralization unit (ENU):

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Definition: {LNK!Type=03!RegscanDoc=db=txenvr&doc=002503T6.htm#(41)!}30 Texas Administrative Code (TAC) 335.1(41){/LNK!Type=03!}

Permit exemption: 30 TAC 335.41(d)(1)

Regulatory Agency

Texas Commission on Environmental Quality (TCEQ) Office of Waste

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Texas follows the federal rules and exemptions for the chemical alteration of corrosive wastes known as the elementary neutralization of hazardous wastes, including the definition of elementary neutralization units, and the treatment of ignitable or reactive wastes. The Texas regulations for the neutralization of wastes are the same as the federal regulations with minor differences. See the national section NEUTRALIZATION OF WASTES for a description of the federal requirements for neutralizing hazardous wastes and the exemption for elementary neutralization units (ENUs) from the hazardous waste treatment, storage, and disposal facility (TSDF) permit requirements.

The neutralization procedure involves adjusting the pH level of the corrosive waste so that it has a neutral value of 7. The waste may still be hazardous, however, if it has other characteristic properties, such as ignitability or toxicity. See the state sections CHARACTERISTIC WASTE and HAZARDOUS WASTE TREATMENT for more information.

Examples of industries that might use neutralization of wastes are automobile industries that use acids for cleaning engine parts that create an acidic corrosive waste, and cleaning industries that use caustics in ...

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State Requirements

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Texas Neutralization of Wastes Resources

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