Sewage Treatment Plant (STP)

SEWAGE TREATMENT PLANT : MBBR / FAB Technology

The various toilet streams & waste water are collected in septic tank & led into the raw sewage sump. The sewage is pumped into the Skid mounted Package type Sewage treatment Plant for biological oxidation of organic impurities in presence of activated (biomass) bacterial sludge. The aeration is imparted by Diffused type aerators installed in the tank. The biological treatment method followed is of Moving Bed Bio Reactor (MBBR), also known as Fluidized Bio Reactor ( FAB ). The air is induced in the tank from bottom and it moves upward through moving Media. Moving media due to its movement ensures full utilization of oxygen in the air before it reaches top. The bacteria's which form film on the moving Media utilizes this oxygen and degrades the substrate coming from the sewage water. Increased surface area increases the quantum of the biomass to great extent and thus can sustain shock loads.

The Moving film of bacteria's falls down as soon as its thickness increases beyond certain limit. The anaerobic growth at the bottom most layers makes it loose and it falls down. This makes the maintenance of biomass fully automatic. The sludge settled at bottom is drained out, by Sludge transfer pump into Sludge drying bed.

The overflow of Aeration tank is allowed to pass through a Tube Settler. Any carryover of the suspended solids are settled here. The clarified effluent that overflows from Tube Settler is chlorinated with Sodium hypochlorite solution for disinfection and then filtered is a pressure filter. Alum solution is dosed for coagulation of suspended and colloidal impurities prior to the filtration. The filtered, treated effluent can very well be used for irrigation or discharged into drains as it confirms to the standards stipulated by Pollution Control Board.

  MBBR MEDIA:

MBBR processes are an excellent solution for common wastewater applications including

1)BOD CONTROL

2)Nitrification,3)Nitrogen remove

  RBC Technology

The various toilet streams & waste water are collected in septic tank & led into the raw sewage sump. The sewage is pumped into the Skid mounted Package type Sewage treatment Plant for biological oxidation of organic impurities in presence of RFBC aeration The aeration of RFBC system is naturally aerated system where the rotating contractor is a ‘drum filled’ with media for bacterial attachment. The drum rotates slowly and is submerged partly in wastewater. The overflow of RBC is allowed to pass through a Tube Settler. Any carryover of the suspended solids are settled here. The clarified effluent that overflows from Tube Settler is chlorinated with Sodium hypochlorite solution for disinfection and then filtered is a pressure filter. Alum solution is dosed for coagulation of suspended and colloidal impurities prior to the filtration. The filtered, treated effluent can very well be used for irrigation or discharged into drains as it confirms to the standards stipulated by Pollution Control Board.

Technologies used in Sewage treatment process:

• Extended aeration
• Activated sludge process
• Submerged aerobic fixed film
• Fluidized media reactor
• Sequential batch reactors
• Membrane bio reactor
• Moving bed bio reactor
• Tertiary treatment with stage media filtration and chlorination or ultrafiltration
• Zero Discharge

Salient Features of Portable STP

• The unit is complete in all respect hence no requirement of any RCC chamber except civil platform
• These are ready to install conditions unit of capacity 50 KLD to 200 KLD
• Based on long experience of STP plants the unit is designed with desired capacity of anoxic, bio-reactor chamber for perfect degradation of organic and removal of nitrogen components efficiently
• The treated water quality is ultra filtered as system is designed on MBR technology
• The outlet quality become close to raw water standards as MBR outlet is perfectly disinfected by UV system.
• Sludge is also inbuilt in system and dewatering is carried out by screw press.

Applications:

Sewage Treatment & Reuse Plants for:

• Hotels
• Hospitals
• Residential & Office Complexes
• Malls
• Educational Institutions
• Industrial units