Environmental Dynamics International (EDI) - Axius Water articles

Technical Bulletin 162: High Efficiency Diffusers versus Surface Aerators

EDI has engineered systems that are well suited for almost any aeration mixing application. With multiple diffuser platforms available, it gives design engineers or users choices for coarse bubble, fine bubble of different types, and several different configurations for the diffuser systems. With this flexibility and multiple configurations of diffuser systems available it has become

The Metro Wastewater Reclamation District is the major wastewater treatment authority of metropolitan Denver, CO. The Metro District’s Robert W. Hite Treatment Facility (RWHTF) has been operational since 1966, and serves approximately 2 million people. As one of the largest wastewater treatment facilities west of the Mississippi (220 million gallons / 832,790 cubic meters per day capacity) the plant treats and reclaims about 130 million gallons / 492,104 cubic meters each day, which is

Problem

You need a new wastewater treatment solution. Perhaps you’ve run out of real estate and need a compact, efficient process. Or maybe your industrial project needs a comprehensive treatment solution.

Nexom’s Answer

With the BioPortz™ Water Resource Reclamation Facility (WRRF) you can meet the most stringent organic, solids and nutrient limits with simple O&M in a compact footprint.

Leave

Problem

Your lagoon has served your community or company well for so long but now modern regulations or sludge buildup make it untenable. You don’t want to give up on your existing infrastructure, and more mechanical solutions require higher level operations training.

The Nexom Answer

optAER fine-bubble aeration and in-lagoon upgrades turn your lagoon into a modern treatment plant for BOD and TSS reduction, all with the lowest O&

The Northwest Municipal Wastewater Treatment Plant of the City of Springfield, MO had EDI FlexAir MiniPanel diffuser system installed and operational for ten years. MiniPanel is a unique, fine pore, flexible membrane diffuser that provides superior operational flexibility and oxygen transfer efficiency compared to other membranes or rigid fine pore (ceramic) diffusers. SiteWorks - the aeration solutions and aftermarket services wing of Nexom and EDI - kept in touch with the customer through t

TECHNICAL BULLETIN 135 General Oxygen Requirements for Wastewater Treatment 

Oxygen requirements for municipal wastewater treatment can be predicted closely with the standard laboratory analysis using g the BOD test (special requirements exist for some industrial wastewater). The BOD test is designed to measure Biological Oxygen Demand for the wastewater and provides an excellent basis for design assuming:

1. Wastewater is avail

History - Coarse, Medium, Fine Bubble Diffusers
Diffuser efficiencies are generally measured in clean water to allow basis of comparison of similar products and prediction of actual performance in a wastewater treatment plant application. Before standard testing procedures were implemented, SOTE data were managed by the various suppliers of aeration equipment with optimistic results from conducting their own clean water test procedures. Introduction of the ASCE clean wat

SYNOPSIS

A well-known winery in California does not take water for granted. The winery set out to use leading water conservation practices in their wine cellars and in the vineyard. However, efficiently treating the wastewater in high-demand periods became a bigger challenge in their outlook towards sustainable and responsible use of water. Environmental Dynamics International (EDI) helped this winery achieve better treatment and minimize energy consumption by upgradi

Coarse bubble diffusers are suitable for almost any type of water and wastewater application. The primary application of coarse bubble diffuser systems today are as indicated below: 

Aerobic Digestion Applications

• Coarse bubble diffusers have been the traditional diffusers used in these applications. The standard design rate for this application is 30 scfm per 1000 ft of tank volume.<