Biological treatment: Bypass of Oxic Zone

 


Challenge:
The membrane diffusers of the Oxic Zone within our customers biological WWTP required replacement. In the past the customer halted their production for this maintenance activity but, in this instance a loss of production had to be avoided. The customer requested a solution to enable a full maintenance event to occur in the Oxic Zone, including the removal of sand and other settled pollutants, whilst minimising any downtime in production.

Solution:
After an extensive engineering review phase, BakerCorp provided a solution consisting of:

  • Hoses & manifolds to provide a temporary re-routing of the incoming pre-treated wastewater & Return Activated Sludge flow.
  • A series of Filtration “Open Top” (FOA) Tanks, installed in parallel, each equipped with 8 aeration panels.
  • The required airflow of 400 Nm³/h per FOA in order to provide 18 kgO2/h was provided by blowers

Benefits:
As a result of the comprehensive BakerCorp solution, the customer avoided problems with discharge limitations due to any lack of biological treatment. Revenues were protected as the production process could be continued without restrictions.

Technical Plan - Bypass oxic zone

 

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FEATURED CASE STUDY

PRIMARY CLARIFIER: ADDITIONAL PRE- TREATMENT CAPACITY

A refinery close to the Wastewater Treatment Plant (WWTP) had a major Turn Around. The challenge was to send the waste stream from the cleaning activities during Turn Around completely to the WWTP.

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ARE YOU PLANNING MAINTENANCE AT YOUR OXIC ZONE?

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