PROVIDING END-TO-END SOLUTIONS
TO HELP REUSE WATER in a better way using Conventional & State of the Art Treatment Technologies
Activated Sludge Process
Description
An Activated Sludge Process is a biological treatment process in which highly concentrated microorganisms are used to degrade organics and remove nutrients from waste water. This multi- chamber unit consists of an Aeration tank where air is injected and a Settling tank where the biological flocs are allowed to settle thereby separating the biological sludge from the treated water. The Activated Sludge Systems can treat black water, grey water, faecal sludge and industrial waste water if the pollutants to be treated are biodegradable.
Advantages
- Resistant to organic and hydraulic shock loads
- High reduction of BOD and nutrients
- High effluent quality
EA (Extended Aeration)
Description
Extended Aeration is a modified activated sludge process in which the raw sewage goes straight to the aeration tank for treatment where all the solids are digested by aerobic bacteria. Since the sewage is aerated for a minimum of 24 hours, there is enough time for almost all the solids to be digested completely. EA is particularly suited to plants that have a low concentration of settleable solids in the raw sewage.
Advantages
- Effective removal of Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS)
- Minimal design, operating and maintenance costs
- Ease of installation and operation
Sequential Batch Reactor (SBR)
Description
SBR is a varied configuration of the activated sludge systems in which the treatment process takes place in batches. The different treatment conditions are achieved in the same reactor but at different times. The process involves five stages namely Fill, React, Settle, Decant and Idle. The SBR treated effluent can be discharged to surface water or land.
Advantages
- Less area required
- Effective removal of BOD, COD and TSS
- High degree of automation can be done
MBBR (Moving Bed Biofilm Reactor)
Description
MBBR is a combination of activated sludge process (suspended growth) and biofilter process (attached growth). The process uses the whole tank volume for biomass growth. It uses simple floating media which are carriers for attached growth of biofilms. Biofilm carrier movement is caused by the agitation of air bubbles. This compact treatment system is effective in removal of BOD as well as nitrogen and phosphorus while facilitating effective solids separation.
Advantages
- Higher effective sludge retention time (SRT) which is favorable for nitrification
- Responds to load fluctuations without operator intervention
- Lower sludge production
- Less area required
MBR (Membrane Bioreactor)
Description
MBR is the combination of a membrane process (micro filtration or ultra filtration) with a biological wastewater treatment process (activated sludge process). In MBR, the membrane is employed as a discrete tertiary treatment step with no return of the active biomass to the biological process. It is widely used in the treatment of municipal and industrial wastewater.
Advantages
- Sludge solids are completely retained in the bioreactor and hence solids retention time (SRT) and the hydraulic retention time (HRT) can be controlled separately
- Treated effluent is of very high clarity and with significantly reduced pathogen concentration
- Longer solids retention times tend to provide better biotreatment