Sewage treatment is the process of removing contaminants from municipal wastewater, containing mainly household sewage plus some industrial wastewater. Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated effluent) that is safe enough for release to the environment. A by-product of sewage treatment is a semi-solid waste or slurry, called sewage sludge. The sludge has to undergo further treatment before being suitable for disposal or application to land. Sewage treatment generally involves three stages, called primary, secondary and 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.

CO2 Recovery System
  • Activated Slude Process (ASP)
  • Moving Bed Bio Reactor (SBR)
  • Member Bio -Reactor (MBR)
  • Submerged Aerobic Fixed Film Reactor (SAFFR)
Containerized CO2 Recovery plant
Containerized CO2 Recovery plant

Infections in this category spread through drinking water/food contaminated by excreta etc. Cholera, typhoid and ascariasis fall in this category. 

  • Prefabricated STP
  • Containarized STP
  • Civil STP


Product Description

When sewage is not properly treated or disinfection is not satisfactory, such diseases can be spread. From poorly maintained on-site systems or from open defecation sites, such diseases can spread through groundwater flow or surface flow. Special attention should be paid when there is an outbreak of diarrhoea diseases epidemics because water can immediately disperse such diseases. Also it caused by the lack of proper hygiene due to water scarcity. Example of such diseases are skin/eye diseases (due to the lack of water to wash body) or lice/flea borne diseases (due to lack of water to wash clothes). The main cause of outbreak of diseases is the absence of water supply systems and clean water sources and surface/ground is heavily polluted with wastewater. Sewage system is responsible for the protection of water resources to control water-washed diseases. The examples of this category are malaria and filariasis. Such diseases are transmitted by mosquitoes, which propagate in water. Provision of good drainage systems as well as sewer system reduces the number of casual water pools, which contributes to the control of vectors such as mosquitoes.



Sewage treatment has two essential roles, first to protect public health and second to protect the environment. Trends and history around the world have shown that the early provisions of sanitary facilities were mainly health driven. This remains the same in many current developing and poor countries. The more developed and rich nation’s emphasis sewage treatment more for environmental protection To have eco-friendly & natural treatment, this plant is designed based on the biological treatment concept. This means naturally occurring microbes (which are present in influent water itself) removes or degrade the organic matter present in the influent & at the end clean water is available for the non potable usage or to dispose safely in the drainage or river bodies as per the norms.



  • Screening : This is the first units of the plant in which large or floating materials in the influent gets arrested and blockage or choking of the downstream equipments can be avoided. This arrested material will be removed manually and then will be disposed off suitably
  • Equalization : To absorb variation in quantity and quality of influent and to provide uniform flow at the downstream treatment process, a collection or equalization tank is provided. This will avoid shock loading and process upsets of the treatment plant. To avoid settling of suspended solids in this tank continues air agitation is provided. If at site, septic tank is provided then collection tank as well as air agitation is not required.



  • Biological Treatment: This is the main section of the plant where degradation of organic pollutants with the help of aerobic micro-organism takes place. To maintain the aerobic condition in the bioreactor, air supply arrangement is provided by means of aeration equipment which has high oxygen transfer efficiency.
  • Tube Settler : Gravity overflow from the bioreactor is collected in the tube settler tank. In this settling tank, generated sludge from the bioreactor undergoes a gravity settling. Clear supernatant from settling tank will flow by gravity to a chlorine contact tank. To reduce the plan area of settling tank, tube modules are placed in this tank to increase the settling area of the tank. Since this tank is a hopper bottom tank due to which there is no need of sludge scrapping mechanisms.


Save earth
Save earth
Save earth
Save earth



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