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Diva Envitec

AQUASEP

Integrated Wastewater Treatment Philosophy

AQUASEP from Diva Envitec Pvt Ltd is a conventional wastewater treatment system designed to handle large volumes of moderately polluted water using a combination of physical, chemical, and biological processes. The system integrates equalisation, neutralisation, primary, secondary, and tertiary treatment stages to deliver consistent and compliant treated water for discharge or reuse. These can be both anaerobic or aerobic - decided by the wastewater composition, COD:BOD ratio and treatability studies. Anaerobic digestion also helps valorise the wastewater by biogas generation. It is a cost-effective and proven solution widely adopted across industrial and municipal applications, forming the backbone of wastewater treatment infrastructure globally.

AQUASEP
01

Treatment Train & Process Staging

  1. Equalisation

    balances variations in flow and pollutant load by collecting wastewater from multiple sources, ensuring stable downstream operation and preventing process shocks.

  2. Neutralisation

    adjusts pH to near-neutral levels, creating optimal conditions for biological treatment and protecting sensitive downstream systems.

  3. Primary treatment

    removes larger suspended solids and particulate matter through sedimentation and screening, reducing load on biological stages.

  4. Secondary treatment

    biological degradation of organic pollutants using microorganisms, leading to significant reduction in BOD and COD.

  5. Tertiary treatment

    polishing stage using filtration, membranes (NF/RO), adsorption, or disinfection to achieve discharge or reuse standards. For high TDS streams, integration with evaporation systems (MEE/ZLD) is possible.

02

Process Design & Operational Advantages

  • Proven and robust conventional treatment approach

  • Suitable for large flow rates and variable loads

  • Modular and scalable design for future expansion

  • Compatible with advanced polishing technologies (NF/RO/ZLD)

  • Optimised for stable biological performance

  • Cost-effective for moderate pollution loads

  • Flexible integration with existing plant infrastructure

03

Industrial & Municipal Treatment Applications

  • Municipal wastewater treatment plants (WWTPs)
  • Pharmaceuticals and chemicals
  • Food & beverage industries
  • Textile and dyeing units
  • General industrial effluent treatment
04

Engineering Considerations

Globally, approximately 360 billion m³/year (~360 trillion litres/year) of municipal and domestic wastewater is generated, of which only about 52% is collected and treated, and ~11% is reused. Conventional systems like AQUASEP continue to play a critical role, while also serving as a foundation for integration with advanced and ZLD-based treatment technologies.

Documentation

Technical brochure

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  • AQUASEP: Conventional Water ProcessesRequest PDF
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Every effluent has a different process signature.

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