Water Practice Case Study

Wastewater Plant Upgrades in Southern California - Project 1


Total Cost Savings Identified
Proposed Savings (kWh)
Proposed Savings (kW)

Main Problems

  1. Change TD to Trickling Filter
  2. Low ultraviolet (UV) transmissivity causing excessive energy consumption


Plant Type

Trickling Filter

Denite Filters

UV Disinfection

Plant Size (MGD)


AESC partnered with a design engineering firm to assist the District in evaluating process challenges and potential risk and failure modes. The Consequence of Failure Analysis identified several opportunities for performance improvement and energy savings. AESC supported the district with a comprehensive energy audit through the Southern California Regional Energy Network, or SoCalREN. Measures recommended for further evaluation included the installation of a novel technology that utilizes a reflective chamber for UV disinfection and bioaugmentation in the Trickling Filter Process. In addition, the AESC team secured funding from Southern California Edison to conduct an Emerging Technologies study to test a new oxidation technology in three phases. As a part of that effort, AESC installed real-time energy monitoring equipment on site and is working on an energy dashboard. SoCalREN is currently looking into supporting this effort.

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