Technologies & Systems For Waste Water
We provide different technologies for Waste Water Treatment Plant:
EXTENDED AERATION
Extended Aeration is a type of activated sludge process with no primary settling and longer aerobic detention time to generate less excess sludge overall. It is a biological treatment process, which is able to produce high quality effluent at a reasonable operating and maintenance costs.
The Extended Aeration process is widely used by large cities and communities where large volumes of wastewater must be treated highly economically. Extended Aeration plants are good choices too for isolated facilities, such as hospitals or hotels, housing developments and even individual residences.
Advantages of Extended Aeration:
The Extended Aeration is the most popular biological treatment process for larger installations or small package plants being used today. The reason for this is their ability to produce a high quality effluent for the price. Other advantages of the Extended Aeration process are its stability, the ease of installation and operation of systems, the low operating and maintenance costs, handy operation the low sludge yield and the odorless operation.
We offer Sewage Treatment Plant based on Extended Aeration Technology.
SAFF - SUBMERGED AEROBIC FIXED FILM PLANT
Submerged Aerobic Fixed Film (SAFF) process uses support media to retain an active biomass to reduce the influent BOD Levels. Tubular/Disc diffusers are used with the SAFF media giving a good air dispersal and low level of blockage due to growth of biological film. SAFF reactor is a type of aerobic attached growth treatment process. Small foot print area, stable process, lesser sludge production and modular installations are the key features of SAFF process. Essentially SAFF system is a hybrid reactor where attached growth and suspended growth activity takes place simultaneously.
This technology utilizes an aerobic fixed film process that is a combination submerged attached growth and activated sludge processes. SAFF is highly suitable for medium and low strength wastewater. This is a cost-effective method of waste water treatment and sewage sanitation.
Advantages of Submerged Aerobic Fixed Film:
1. No sludge re-circulation is required to maintain MLSS as in the case of conventional aeration system.
2. SAFF system takes higher shock loads without reducing the plant performance because of large quantity of Bio mass available in the reactor.
3. SAFF supports increased SRT which results in to low sludge generation, low Odour and low visual impact.
4. Modular expandability.
We offer Sewage Treatment Plant based on SAFF -Submerged Aerobic Fixed Film Technology
MBBR- MOVING BED BIO REACTOR
MBBR is an improved version of Fixed Film Bio Reactor like SAFF (Surface Area Fixed Filmed Technology (SAFF) or Rotating Bio Reactor (RBC), with a difference of MBBR carrier media is free floating in the Sewage/Effluent. MBBR technology employs thousands of polyethylene biofilm carriers operating in mixed motion within an aerated wastewater treatment basin.
A Moving Bed Bio Reactor (MBBR) consists of a tank with submerged but floating plastic (usually HDPE, polyethylene or polypropylene) media having specific gravity less than 1.0. The large surface area of the plastics provide abundant surface for bacterial growth.
Advantages of Moving Bed Bio Reactor:
1. MBBR is stable under load variations, insensitive to temporary limitation and provides consistent treatment results.
2. It’s generates low solids and requires no or minimum polymer for solid/liquid separation.
3. It requires a small footprint. Typically it requires 1/3rd the space required for Activated Sludge Process.
4. It is easy to operate, has automatic sludge wasting, has no sludge Return and no MLSS, and there no issue of media clogging.
We offer Sewage Treatment Plant based on FAB / MBBR – Moving Bed Bio Reactor Technology
SBR - SEQUENCING BATCH REACTOR
The Sequencing Batch Reactor (SBR) is an activated sludge process designed to operate in a batch mode with aeration and sludge settlement both occurring in the same tank. Difference between SBR and activated sludge system is that the SBR tank carries out the functions of equalization, aeration and sedimentation in a time sequence.
An appropriately designed SBR process is a unique combination of equipment and software. Working with automated control reduces the number of operator skill and attention requirement. There are basically five stages to treatment:
Static Fill –> Aerated Fill → React → Settle → Decant
SBRs are broadly used in both industrial and municipal applications and especially where low or intermitted flow conditions apply.
Advantages of Sequencing Batch Reactor:
1. SBR is ideally suited when nitrification, denitrification and biological phosphorus removal is necessary.
2. Small foot print, Simple Design & Power saving Technology.
3. Suitable for variable organic and hydraulic load.
4. No Clarifier required
5. No sludge recirculation required
We offer Sewage Treatment Plant based on SBR – Sequencing Batch Reactor Technology.
MBR - MEMBRANE BIO REACTOR
Membrane Bio Reactor (MBR) is the combination of a membrane filtration process with a suspended growth bioreactor. It is a very advanced technology and is now widely used for municipal and industrial wastewater treatment.
As its name tells, the process makes use of membranes. The nominal pore size of the membranes is small (up to 0.15µm), by which not only activated sludge but also coliform bacteria and virus can be shut out. The mixed from the biological treatment can be separated clearly into solid and liquid. It assures almost 100% removal of SS and no carryover of SS into the effluent.
This process, therefore, assures stable treated water quality, which enables the treated water to be reused as reclamation water.
Advantages of Membrane bioreactor:
1. Most important aspect of MBR technology is production of very high quality Treated Water consistently.
2. Complete independent control of HRT (Hydraulic Retention Time) and SRT (Sludge Retention Time), which allow more complete reduction of COD, and improved stability of processes such as nitrification.
3. Process intensification through high Biomass concentration with MLSS (Mixed Suspended Solids) over 8000 – 10000 ppm.
4. Lower footprint than other technologies.
We offer Sewage Treatment Plant based on MBR Technology
We also offer Effluent Treatment Plant based on MBR Technology
ZERO LIQUID DISCHARGE PLANT
The definition of Zero Liquid Discharge Plant differs from industry to industry depending upon consumption pattern and the contaminants.
The treatment depends on the intended usage of the recycled water. If the water is to be used for gardening purpose, BOD, COD and suspended solids removal with filtration will suffice. On the other hand if the water is to be used for high pressure boiler or for industrial production processes it’s including pre treatment, Membrane filtration (Ultra filtration & Reverse Osmosis ). The rejection of Membrane filtration will require Mechanical evaporation or mist evaporation is used to further concentrate the brine prior to crystallization. If any organic are present, condensate polishing may be required for final cleanup to reuse.