Profile	Wastewater treament	Equipment	References		Consulting	Business Co-operation	Feedback
OxiSequencerTM
SBR , Sequencing Batch Reactor	Trickling Filter	Aerated Lagoon	Wastewater treatment applications		Represented Equipment
Our technical objectives	Our SBR preferred process	Our SBR family development	Nutrient Removal		Our design approach
Our SBR equipment	Our process control	SBR, the client's best choice	Our clients testimonies		Partial list of SBR installations	SBR, a technology in evolution	Feedback
BioSequencerTM : "Fill-draw" conventional SBRs				OxiSequencerTM : Smart small flow SBR system
Bio-P-SequencerTM : Super Bio-P removal SBR system				Sequenced BiotowerTM : Sequence operated biotowers
Bio-An-SequencerTM : Anaerobic SBR				BatchLagoonerTM : Extremely flexible SBR system
DSBRTM : Dynamic SBR for cities				PercoSBRTM : Energy saving SBR system

A biological treatment for "small flow"
systems (50-500 m³/d) using SBR technology.

List of process treatment constraints for "small flow" plants.

• unbalanced nutrients, high ammonia content (school...)
• very high hydraulic peak factors (5 to 10 times the average Q);
• periods where the flow is insufficient or completely interrupted;

• very poor solubilization of the organic loads (C, N, P) in the wastewater due to short hydraulic detention time in the sewers;

• lack of attention from a operator .

Knowing the numerous treatment constraints for the good and reliable performances of small sewage treatment plants ECO PROCESS & EQUIPMENT INTL inc. has developed and offers the OxiSequencer^TM technology designed precisely to solve the above problems of small treatment plants.

This technology is based on using an adapted anaerobic pretreatment reactor (BioSeparator™) followed by a SBR. This pretreatment reactor is designed to be used for degreasing, grit removal, screening, clarification, organic solubilization, sludge digestion, flow equalization and for long-term sludge storage (2 years & over) for all sludges generated by the system. This first reactor also allows the use of a rapid feed mode from the BioSeparator™ to the final SBR in order to obtain enhanced biological controls and to optimize biological reaction efficiency.

The operation mode of the system also allows for a great flexibility of treatment within a treatment sequence scientifically engineered and based on the specific removal rates for C, N and P loads respectively. The necessary biological reactions are then time-controlled and remain adjustable for the actual duration of anoxic, anaerobic and aerobic environments required to meet the specified treatment objectives. This biological concept is supported by a thorough mass balance based on specific biokinetics coefficients for each type of wastewater.

The operator is replaced by our logic control system (BioLog^TM) which also provides means for self-feeding of the final SBR reactor from the BioSeparator™ even during extended periods with weak flows or no flow at all.