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Coarse Screen Wastewater Treatment - Clear Water Solutions

Technology Category: Wastewater Treatment Systems

Extended Aeration (EA)

The Extended Aeration (EA) system is a common Biological system that provides the proper environment, sufficient oxygen and other elements which allow the bacteria to consume the organic matter and to live and multiply within the treatment plant. In this way the aerobic bacteria and microbes decompose the sewage and waste to a stable form – odor and nuisance free. Raw domestic wastewater passes through a series of pre-treatment steps prior to treatment. This comprises of a coarse screen to remove coarse solid materials, a secondary screen to remove finer solid materials, an aerated grit chamber to remove inert materials such as fine sand, gravel etc., and a grease/oil removal system to remove the potential oil in sewage to ensure good performance of the extended aeration system. This is a robust and well understood technology and is often the preferred choice for large-scale municipal projects.
Advantages of EA
  • Robust and well understood process
  • Water quality is easily controlled
  • Load fluctuations are easily managed by the operator
  • Mechanical works are easy to maintain
How It Works
Application of EAs in our solutions

Municipal Wastewater Treatment

Domestic Wastewater Treatment

Further treatment of Industrial Wastewater (ETP)

Extensions of old wastewater treatment plants to increase its capacity

Moving Bed Bioreactor (MBBR)

The Moving Bed Biofilm Reactor (MBBR) grows bacteria on plastic media. This is also known as “Attached Growth.” The system consists of a tank that is aerated, in which the plastic media is mixed. This plastic media enhances the biofilm’s contact surface area, effectively reducing the footprint of the aeration system. The attached growth makes the system resilient to load fluctuations, because of which these systems are often used in industrial applications where significant variability can be expected. Post treatment, the sludge is settled out and removed from the system, and the water is easily treated to remove any suspended particles.
Advantages of MBBR
  • Resilient to load fluctuations
  • Small footprint compared to conventional technologies
  • Does not require Sludge circulation
  • Economical to build
How It Works
Application of MBBRs in our solutions

Municipal Wastewater Treatment

Retrofits and upgrades of old wastewater treatment plants

Industrial Wastewater Treatment

Membrane Bioreactor (MBR)

A membrane bioreactor (MBR) is an activated sludge system with membranes located at the end of the activated sludge basin(s) for liquid-solids separation in lieu of using secondary clarifiers. In the integrated MBR system, the key component is the microfiltration or ultrafiltration membrane that is immersed directly into the activated sludge reactor. The membranes are mounted in modules that can be lowered into the bioreactor.
Advantages of MBR
  • A much smaller area requirement (less than 50%)
  • A simpler process operation with no concerns about the effect of filamentous activated sludge
  • Reclaimed water quality effluent due to complete suspended solids capture across the membrane separation
  • A lower disinfection dose requirement due to the low turbidity
How It Works
Application of MBRs in our solutions

Municipal Wastewater Treatment

Retrofits and upgrades of old wastewater treatment plants to increase capacity

Upgrades of old treatment plants to make them compliant to new regulations

Rapid deployment to remote sites

Membrane Aerated Biofilm Reactor (MABR)

Membrane-aerated biofilm reactor (MABR) is an energy efficient biological wastewater treatment process, based on passive aeration: by diffusion of oxygen through membranes, which also support an aerobic biofilm. By consuming very low energy at small treatment capacities, MABR supports the most important principles in water and energy efficiency: reduced energy for treatment and local water reuse.
Advantages of MABR
  • Significant reduction in energy footprint compared to conventional systems due to the reduced load required for aeration
  • Carries out simultaneous nitrification and denitrification to decompose organic matter present in wastewater
  • Available in containerized packages, enabling rapid deployment to remote sites
  • High Nitrogen removal efficiency
  • Odor-free process - the system does not require any odor control devices
How It Works
Application of MABRs in our solutions

Municipal Wastewater Treatment & Reuse

Residential & Commercial Wastewater Treatment & Reuse

Institutional Wastewater Treatment & Reuse

Industrial Wastewater Treatment & Reuse

Retrofits and Upgrades of Old Wastewater Treatment Plants to Increase Capacity

Upgrades of Old Treatment Plants to Make Them Compliant to New Regulations

Integrated Fixed Film Activated Sludge (IFAS)

Integrated fixed-film activated sludge (IFAS) is a biological treatment technology that combines suspended growth and biofilm technologies in one reactor. The technology involves introducing attached growth media (fixed or free-floating) to selected zones in an activated sludge tank to dramatically increase the growth of biomass without increasing mixed liquor suspended solids, enhancing the treatment process.
Advantages of IFAS
  • Higher process stability
  • Enhanced nitrification as compared to simple suspended growth systems
  • Reduced production of sludge
  • Small footprint compared to conventional technologies
  • Economical to build
How It Works
Application of IFASs in our solutions

Municipal Wastewater Treatment

Retrofits and upgrades of old wastewater treatment plants to increase its capacity

Industrial Wastewater Treatment

Advanced SBR (ASBR)

The Advanced Sequencing Batch Reactor (ASBR) is an enhanced SBR process, which incorporates staged activated-sludge process configurations to operate with continuous inflow of wastewater and increase efficiency and capacity. The process utilizes a simple repeated time-based sequence of operation, which incorporates: Aeration (for biological reactions), Settling (for solids-liquid separation), and Decanting (to remove treated effluent). Completion of these three operations in the sequence described above constitutes a cycle, which is then repeated.
Advantages of ASBR
  • Continuous feed, batch discharge
  • Requires very little energy and no chemicals
  • Odor-free process - the system does not require any odor control devices
  • Lesser footprint compared to SBR
  • Modular construction possible
  • Operation is flexible; nutrient removal can be accomplished by operational changes
How It Works
Application of ASBRs in our solutions

Municipal Wastewater Treatment & Reuse

Residential & Commercial Wastewater Treatment & Reuse

Institutional Wastewater Treatment & Reuse

Industrial Wastewater Treatment & Reuse

Sequential Batch Reactor (SBR)

SBR is a fill-and-draw type of reactor system involving a single complete-mix reactor in which all steps of the activated sludge process occur. A unique feature of the SBR system is that there is no need for a return activated sludge (RAS) system, because both aeration and settling occur in the same tank.
Advantages of SBR
  • Process is simplified; final clarifiers and RAS pumping are not required
  • Modular construction possible
  • Operation is flexible; nutrient removal can be accomplished by operational changes
  • Economical for local as well as centralized plants
  • Requires very little energy and no chemicals
  • Odor-free process - the system does not require any odor control devices
How it works
Application of SBRs in our solutions

Municipal Wastewater Treatment & Reuse

Residential & Commercial Wastewater Treatment & Reuse

Institutional Wastewater Treatment & Reuse

Industrial Wastewater Treatment & Reuse

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