Texas Administrative Code
Title 30 - ENVIRONMENTAL QUALITY
Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS
Subchapter F - ACTIVATED SLUDGE SYSTEMS
Section 217.163 - Advanced Nutrient Removal

Universal Citation: 30 TX Admin Code § 217.163

Current through Reg. 50, No. 13; March 28, 2025

(a) For a wastewater treatment facility designed to provide advanced nutrient removal, the engineering report must specify the process units needed to achieve the effluent limits established in the wastewater treatment facility's wastewater permit.

(b) Biological nutrient removal using an activated sludge process, membrane filtration, sand filtration, or a combination of these processes may be used for advanced nutrient removal without applying for the executive director's approval under the innovative or non-conforming technology criteria in § 217.7(b)(2) of this title (relating to Types of Plans and Specifications Approvals). A biological nutrient removal process that involves fixed-film treatment is subject to the executive director's determination under § 217.7(b)(2) of this title.

(c) If a biological nutrient removal unit is proposed, the engineering report must include the:

(1) anticipated food to microorganism ratio in both the anoxic and anaerobic zones;

(2) volatile fatty acid recycle ratio; and

(3) design of a foaming control system.

(d) If a chemical addition unit is proposed, it must comply with the chemical containment requirements in Subchapter K of this chapter (relating to Chemical Disinfection). Chemical addition may only be used if approved in writing by the executive director.

Disclaimer: These regulations may not be the most recent version. Texas may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.