Why Innovation?
The increasing need for innovation for a more efficient, automatic and economical  Waste Water Treatment Technology are due to the following
reasons:

1. Stricter treated standards
2. Reliability of operation due to water recycling needs
3. Absence of highly skilled operators to operate the plants manually
4. Space constraints
5. Rising power costs  


The solution

It has been recognized world-wide that Sequential Batch Reactors (SBR)are best available technology that provides perfect answers to above issues associated with all other available technologies and robust developments in electronics & automation have made them much more
economical & reliable.

The Advanced Sequential Batch Reactor Technology (SBR) offered by BTPL,  has been successfully applied cost-effectively in many full-scale small and large sewage treatment applications .

The SBR process is designed to address the major limitation of existing conventional treatment process, that is, Secondary Clarifier &
sludge recalculation. The SBR completely eliminates the need for secondary clarifier. This unique feature of SBR provides several advantages:

•No Settling Tank and return sludge pumps. Hence the settle ability of sludge is no longer an issue and the problems associated with settling tanks such as Sludge Bulking & Septicity are completely eliminated.

•Allows storage of active sludge mass and prevents it from being lost. This means that no biomass can escape from the system even in case of surge flows.

• The complete retention of suspended organics and biomass within the system ensures enhanced biodegradation followed by nitrification and de-nitrification (commonly known as nutrient removal). Reduction of
nitrogenous Biochemical Oxygen Demand (BOD) results in much better treated effluent quality.

•The system allows for very long sludge retention time. The extended sludge retention allows for complete digestion of sludge within the system thereby reducing sludge wastage, which is typically once in a
month only in SBR.

•The output treated water quality is consistently maintained due to retention of biomass in the system even in the event of surge flows or low flows.

•The treated water is low in organics and Total Suspended Solids(TSS) and nutrients and can be recycled for landscaping and toilet flushing with minimal post treatment. The post treatment given in SBR is only
sand filtration and no activated carbon filtration is needed, thereby reducing operational costs. Further the treated water can be fed to a
softener and used for cooling applications.

• Due to complete stabilization of sludge, it can be directly disposed as manure without further treatment.

•Aerobic conditions throughout the bioreactor and absence of settling tank eliminates the potential for odor. Hence the system is completely odour free.

•The operation is simple and automated hence minimal operator attention is required.

•Due to single unit operation and compact design, space requirements are less.

The SBR plants are modular in design and this allows for future expandability with common equipment infrastructure, thereby significantly saving capital costs in case of large staggered flows.

•The existing conventional plants can be easily converted into SBRs due to their compact design without additional civil works.