Conference Agenda

Bar Screens are often thought of as an inefficient means of screenings removal. However, spending a bit of time design optimizing the channel configuration can go a long ways to removing pesky items in the waste stream like wipes.

This course will cover the basics of Membrane Bioreactor (MBR) process including how to design, operate and troubleshoot. MBR effluent meets the class A recycled water and are reused in multiple application around the world. It also meets extremely low Nitrogen and Phosphorus regulations, which makes the MBR technology a viable option in multiple applications.
Kubota will provide couple detailed MBR project case studies in the Northwest.

AWC has nearly 25 active DAF plants in the PNW. The technology has been so prolific here because it is perfect for treating the kinds of surface waters we have, which are laden with fine solids, organics and algae. Few other technologies can meet potable water quality requirements with such high recovery, low operating costs and as little waste. This presentation will dive into the details of the DAF's performance at these many operating facilities and will highlight an active project in Wrangell, Ak where a DAF plant is finally being built nearly 7 years after piloting confirmed DAF was the best technology for the job.

The Revolving Algal Biofilm (RAB) system uses vertically oriented conveyor belts that grow algae on their surface. As the algae grow, it consumes nitrogen and phosphorus from the wastewater while it uses sunlight and carbon dioxide from the atmosphere to rapidly grow algae biomass.

The algae produced during this process can be harvested and used to make fertilizers, bioplastics, and biofuels providing an additional revenue stream alongside an already more economical system.

The City of Pasco, WA is currently implementing the RAB system at its Process Water Reuse Facility following anaerobic digestion.

Veolia's ZeeLung MABR technology allows existing facilities the ability to increase or even add nitrification if the facility does not already nitrify in a simple and cost-effective manner.

On-site hypochlorite generation (OSHG) systems for disinfection have seen an increased adoption rate in the last decade as water and wastewater utilities continue to grapple with the onerous complexity of risk management plans (RMPs) in the case of gas chlorine disinfection and the operational or cost challenges of using bulk 12.5% sodium hypochlorite for disinfection. OSHG systems which have been utilized in North America since the early 1990’s use electricity to convert simple table salt (sodium chloride) into 0.8% (8,000 ppm) bleach or sodium hypochlorite.