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Evoqua United States - Canada - EN

BioSphere® Biological System

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Proven fixed-film technology, ideal for BNR upgrades, and capacity expansions

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  • Design and implementation efficiencies ensure lower capital and operation costs than conventional alternatives.
  • Simple media addition allows for easy plant expansion to accommodate population growth or other needs for capacity.
Discontinued product
evoqa

Proven fixed-film technology, ideal for BNR upgrades, and capacity expansions

  • Design and implementation efficiencies ensure lower capital and operation costs than conventional alternatives.
  • Simple media addition allows for easy plant expansion to accommodate population growth or other needs for capacity.
Discontinued product

Description

The BioSphere®​ system incorporates a biomass carrier into a moving bed fixed-film process that provides a protected, extremely high surface area environment for biofilm growth. The system increases capacity by 200% or more and ensures compliance with ever-tightening permit limits—all within the existing plant footprint.

The BioSphere system can be used as an IFAS system or as a MBBR system. It provides complete bioreactor mixing with enhanced oxygen transfer capabilities.

BioSphere Biological Systems are ideal for plant upgrades, retrofits or expansions of both municipal and industrial wastewater treatment plants. The technology is cost effective and reliable. It can achieve BOD to < 5.0 mg/L, and total nitrogen (TN) enhanced nutrient performance of < 3.0 mg/L without adding tanks to an existing plant. The technology integrates into most existing activated sludge bioreactors, so project scope and duration is reduced. The small footprint required by the technology, and its ability to handle upset conditions also makes it a cost-effective, reliable solution for new plants.

Features

Features

  • The system can successfully achieve BOD to < 5.0 mg/L, and enhanced nutrient removal performance, including total nitrogen (TN) < 3 mg/L without adding tanks to an existing plant. The high-rate treatment allows for a smaller footprint than conventional processes.
  • The treatment system integrates into most activated sludge bioreactors. It can also be applied as a roughing filter for pretreatment or as a post-treatment polishing bioreactor.
  • Simple media additionally allows for easy plant expansion to accommodate population growth or other needs for capacity.
  • Toxic upsets and hydraulic "wash out" events do not affect the entire microbial population in the biofilm, ensuring smooth, and rapid system recovery.
  • A separate microbial population held on the biomass carriers enables quantitative nitrification even at a low sludge age. An autotroph-rich biofilm allows stable nitrification, even at low temperatures.

Benefits

  • Elimination of plugging
  • Nitrogen removal without increased hydraulic retention time
  • Fixed-film biomass is attached to carriers designed to remain in the aeration basin even under hydraulic upset conditions. Due to biofilm layers on the media, toxic upsets typically do not affect all active biomass and recovery is much quicker than with suspended growth systems.
  • Efficient use of non-clogging wedge wire screens ensures reliable retention of the biomass carriers in the bioreactor

Specs

Aerobic Treatment System Type
  • Fixed Film, Separation/Clarification