Sewage Treatment Plants

Sewage treatment plant process includes sewage treatment on primary, Secondary or biological and tertiary treatment process to improve quality of wastewater for recycle.


With increasing infrastructural development and water usage for various purposes such as domestic and commercial, there is generation of waste water.


Sewage treatment generally involves three stages,

  • Primary Treatment
  • Secondary Treatment
  • Tertiary Treatment

Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment.

Secondary treatment removes dissolved and suspended biological matter. Secondary treatment is typically performed by indigenous, water-borne micro-organisms in a managed habitat. Secondary treatment may require a separation process to remove the micro-organisms from the treated water prior to discharge or tertiary treatment. Using the latest technology we extensively use the MBR technology for the secondary treatment to suit the clients requirement to reduce the plants layout.

Membrane Bio-Reactor:

The membrane bioreactor (MBR)is a biological system coupled with a membrane to enhance solid-liquid separation and filtration. The membrane is made of cost effective non-woven fibrous material. It has many outstanding properties, such as controllable pore sizes and easy fabrication of the membrane module to achieve desired surface area. The MBR can achieve
desired permeation rate at low trans-membrane pressure.


  • Stable operation and superior effluent quality
  • Easy revamping of existing plants
  • Easy process control
  • Small footprint
  • Less sludge production
  • It can perform with uneven inlet load by adjusting the operating condition

Tertiary treatment is sometimes defined as anything more than primary and secondary treatment in order to allow rejection into a highly sensitive or fragile ecosystem (estuaries, low-flow rivers, coral reefs). Treated water is sometimes disinfected chemically or physically (for example, by lagoons and microfiltration) prior to discharge into a stream, river, bay, lagoon or wetland, or it can be used for the irrigation of a golf course, green way or park. If it is sufficiently clean, it can also be used for groundwater recharge or agricultural purposes.

Package Sewage Treatment Plants:

Beta Envirocare  offers a wide range of pre engineering, pre fabricated packaged sewage treatment systems to handle domestic and industrial sewage originating from industrial residences, large commercial complexes, small and medium industries using suitable treatment methods matching the clients requirement.

Standard modules facilitate a shorter delivery period. The completely pre engineered units require very less civil works and can be erected and commissioned in a short time span. The pre fabricated units are independent of site location (i.e.) in places where there is space constraint or cost of space is very high, these units can be located either on the top of the building, structures or in the basement.

The packaged units work on a media based biological degradation. The specifically developed media made from UV stabilized and chemically resistant propylene offers an ideal condition for growth of micro organisms to degrade the incoming organic contaminants. The use of media also reduces the aeration tank sizes substantially thereby reducing the footprint of Sewage Treatment plant. The process air required is provided by means of twin a lobe type air blower which transfers air through rugged EPDM diffusers. The media also substantially reduces the sludge generation from these units.

Options are available to house the blower in sound proof enclosures to reduce noise thus facilitating the location of units close by to residential units. Packaged units come in standard modules with capacities ranging from 5 m3/day to 200 m3/day.

Sewage treatment is designed using the following methods

  • Extended aeration with Activated sludge process
  • Membrane Bio-Reactor (MBR) Technology
  • Fluidized Bed Bio-Reactor Process (FBBR)
  • Submerged Aerobic Fixed Film Process (SAFF)

Packaged Sewage Treatment Plants are ideal for the following applications:

  • Residential colonies
  • Commercial Complexes
  • Software parks
  • Hotels & Restaurants
  • Resorts & Amusement parks
  • Small and Medium Industries