What is Biological Water Treatment?
Biological water treatment uses naturally occurring microorganisms (bacteria, protozoa) to break down and consume organic pollutants (like sewage, food waste, nitrogen compounds) in wastewater. Microorganisms convert contaminants into harmless gases (CO₂, N₂), water, and excess biomass (sludge).
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![Membrane Biological Reactor]()
Membrane Biological Reactor1.Aerobic Digestion: Microorganisms degrade organic pollutants in the bioreactor, consuming BOD/COD.view more
2.Membrane Filtration: UF membranes (0.01–0.1 µm pores) separate biomass and suspended solids from treated water.... -
![Containerized Water Treatment System]()
Containerized Water Treatment SystemOur Containerized Water Treatment System is a fully integrated, plug-and-play solution designed to deliver clean, safe water in any environment. Housed in a robust, portable container, this system is ideal for remote locations,...view more -
![Moving Bed Biofilm Reactor]()
Moving Bed Biofilm Reactor1.Biofilm Growth: Microorganisms colonize high-surface-area carriers (e.g., polyethylene, polypropylene), forming active biofilms.view more
2.Continuous Mixing: Aeration or mechanical mixing keeps carriers suspended, ensuring optimal...
Highly Effective
Efficiently removes dissolved organic matter & nutrients (N, P) difficult for physical/chemical methods.
Eco-Friendly
Uses natural processes, minimizing chemical usage.
Cost-Efficient
Lower operational costs (energy/chemicals) than advanced physico-chemical treatments.
Versatile
Adaptable to various wastewater strengths and types.
Sustainable
Produces biogas (methane) as renewable energy in some systems.
Main Features
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Microbial Consortia
Specific bacteria/protozoa target different pollutants.
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Oxygen Requirement
Aerobic (oxygen needed), Anaerobic (no oxygen), or Anoxic (limited oxygen) conditions.
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Biomass Form
Suspended growth (free-floating) or Attached growth (biofilm on media).
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Sludge Production
Generates biomass (sludge) requiring further treatment/disposal.
Types of Biological Reactors
Activated Sludge: Suspended microbes in aerated tanks; common for municipal sewage.
Trickling Filters / Biofilters: Wastewater trickles over biofilm-coated media (rocks/plastic).
Moving Bed Biofilm Reactor (MBBR): Uses small, free-floating plastic carriers with biofilm; combines suspended/attached growth. Compact & efficient.
Membrane Biological Reactor (MBR): Integrates biological treatment (activated sludge) with physical filtration (ultrafiltration/microfiltration membranes). Provides superior effluent quality, small footprint, and eliminates secondary clarifiers.
Anaerobic Digesters: Treat high-strength waste without oxygen; produce biogas.
Applications
Municipal Wastewater Treatment Plants (core secondary treatment).
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Industrial Effluent Treatment (food & beverage, pulp & paper, pharmaceuticals).
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Nutrient Removal (nitrogen, phosphorus) from sensitive watersheds.
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Landfill Leachate Treatment.
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Decentralized Systems & Water Reuse Projects (especially MBRs for high-quality reuse water).
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Aquaculture & Aquarium Water Management.
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