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Effluent Treatment Plants that turn high-strength wastewater into compliant, reusable water

Robust ETPs for sugar, distillery and process industries, combining physico-chemical, anaerobic, aerobic and tertiary treatment to meet pollution control norms and enable water reuse.

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Aerial view of a complete effluent treatment plant at Balaji Sugar
  • 97%+COD reduction (10,000 → <250 ppm)
  • 98%+BOD reduction (7,500 → <100 ppm)
  • 1,200-3,000KLD ETP capacity range designed
  • 12-14 wksSupply after confirmed order
Overview

What is an Effluent Treatment Plant?

Industrial operations generate wastewater loaded with organic matter, suspended solids, oil, grease and chemicals. In sugar mills, effluent from floor washing, equipment cleaning, boiling house and cooling sections is acidic (pH 4-5) with COD up to 10,000 ppm, and carries bagasse fibres and oil. Discharged untreated, it pollutes water bodies and breaches pollution control norms.

An Effluent Treatment Plant (ETP) removes these pollutants through screening, physico-chemical treatment, biological treatment and tertiary polishing. SBS Water & Infra Projects Pvt. Ltd. designs, manufactures, installs and commissions ETPs built around each client's effluent characteristics, flow and discharge or reuse requirements.

  • Compliance with pollution control board norms
  • Treated water for reuse, irrigation and utilities
  • Biogas recovery from the anaerobic stage
Aeration basin and settling tanks of an SBS effluent treatment plant
Our ETP Solutions

Effluent treatment built for your industry

Each ETP is configured to the effluent characteristics, flow rate and required outlet quality.

Aeration basins and clarifiers of the sugar ETP at Balaji Sugar

Sugar Industry ETPs

For the seasonal, acidic, high-COD effluent of sugar mills.

  • Screens for bagasse & fibres
  • Oil & grease removal
  • Lime neutralization + anaerobic-aerobic train
Membrane skid, pump bank and pipe racks of the effluent treatment plant built by SBS Water at Venus

Distillery & Process Effluent

Advanced anaerobic (CSTR, UASBR) and aerobic (ASP, MBBR, SBR / eSBR) technologies for high-strength effluent.

  • Up to 80-90% COD reduction in digester
  • Biogas recovery for fuel use
  • Stable operation under load swings
Membrane skids beside an effluent treatment plant for water recovery

ETP + UF + RO Recovery

Tertiary Ultrafiltration and Reverse Osmosis recover treated effluent for process or cooling tower reuse.

  • Delivered for Balrampur Chini Mills (2,400 KLPD)
  • Pathway to Zero Liquid Discharge
  • Lower freshwater intake
Explore our RO systems
Tertiary pressure filters after biological treatment at Southern Bioenergy

Advanced & Tertiary Treatment

For difficult effluents and stricter discharge norms.

  • DAF - Dissolved Air Flotation
  • Ozonation & hydroxyl radical (AOP)
  • Chemical oxidation & bioremediation
Aeration tanks at Satish Sugars, where SBS is upgrading the ETP

ETP Upgradation & Revamping

For existing ETPs that are overloaded or not meeting norms.

  • Capacity enhancement
  • Adding anaerobic / tertiary stages
  • Equipment replacement
Clarifiers and sludge drying beds at the Balaji Sugar ETP

Sludge Management

Thickening and dewatering systems that turn ETP sludge into a manageable by-product.

  • Sludge holding tanks
  • Sludge drying beds
  • Dried sludge usable as manure
Process

How our Effluent Treatment Plant works

Our standard sugar ETP scheme, based on a 3,000 KLD (150 m³/h, 20 h/day) design, treats effluent in five stages. Units are selected and sized according to effluent analysis.

Effluent treatment plant process flowBar screen, oil and grease chamber, collection and equalization, flash mixer and flocculation, tube settler and neutralization with lime feed the anaerobic CSTR and its tube settler, then the aeration tank, clarifier, mixing tank, flocculation tank, tube settler and clear water storage tank, multigrade and carbon filters, chlorine dosing and the treated water tank. Biogas from the CSTR goes to a gas holder; sludge from the clarifier and all three tube settlers goes to a holding tank and drying beds.Raw effluent from the sugar millBiogasSludge from clarifier & tube settlersBar ScreenOil & GreaseChamberCollection /EqualizationFlash Mixer &FlocculationTube SettlerNeutralizationLimeCSTRAnaerobicTube SettlerAeration TankClarifierMixing TankFlocculationTankTube SettlerClear WaterStorage TankMultigrade +Carbon FiltersChlorineDosingTreated WaterTankGas HolderBiogas as fuelSludge HoldingTankTo drying beds
Primary & tertiary treatmentBiological treatmentFiltration & disinfectionTreated waterBiogas recoverySludge handlingSludge lineSwipe to see the full flow
Typical Performance

Inlet vs. treated effluent quality

Design values from our 3,000 KLD sugar industry ETP.

ParameterRaw EffluentAfter Biological Treatment
pH4.0 - 5.06.5 - 8.5
COD10,000 ppm< 250 ppm
BOD7,500 ppm< 100 ppm
Oil & Grease10 - 50 ppm< 10 ppm
TSS500 - 600 ppmFurther reduced in tertiary filtration
TDS5,000 - 6,000 ppmApprox. inlet +10%

Actual outlet quality depends on effluent characteristics; each plant is designed after analysing the client's effluent.

At a Glance

Treatment stages and what they remove

StageUnitsRemoves / Does
Pre-treatmentBar screens, oil & grease skimmerDebris, bagasse, fibres, floating oil
EqualizationCollection tank with air-grid mixingBalances flow and composition
Physico-chemicalFlash mixers, flocculation, tube settlers, clarifierSuspended solids, colloids, oil & grease
NeutralizationLime dosing & mixingRaises acidic pH for biology
AnaerobicCSTR with gas holder & flame arresterMajor COD/BOD reduction; biogas
AerobicAeration tank, blowers, secondary clarifierPolishes remaining organic load
TertiaryTube settler, MGF, activated carbon filterResidual solids, colour, odour
DisinfectionChlorine dosingPathogens
SludgeHolding tank, drying bedsThickens & dewaters sludge
Key Features

Engineered for tough industrial effluent

  • Anaerobic-first design

    Lower power use, less sludge and biogas recovery.

  • Heavy-duty screening

    SS304 screens built for bagasse-laden effluent.

  • Compact tube settlers

    High-rate solids removal in a small footprint.

  • Built-in redundancy

    Working + standby critical pumps and blowers.

  • Compliance monitoring

    Digital and ultrasonic open-channel flow metering.

  • In-house manufacturing

    Vessels, bag filters, basket strainers, UF and RO skids.

Aeration tank of the effluent treatment plant at MRN Bhima Sugar
Benefits

What an ETP delivers for your plant

  • Regulatory compliance - treated water within pollution control board norms.

  • Water reuse - for gardening, irrigation and utilities; with UF + RO, for process reuse.

  • Lower energy cost - the anaerobic stage cuts aeration power and produces biogas.

  • Sludge value - dried sludge can be used as manure.

  • ZLD ready - the first step towards Zero Liquid Discharge.

  • Peace of mind - reliable, low-maintenance operation with standby equipment.

Scope of Services

End-to-end project support

From effluent characterization to biological start-up and pollution control board documentation support.

  1. 01

    Assess

    Effluent analysis & design basis
  2. 02

    Design

    Process & civil design inputs
  3. 03

    Supply

    In-house manufacturing
  4. 04

    Install

    Erection & testing
  5. 05

    Commission

    Biological start-up & training
  6. 06

    Optimize

    Upgrades & revamping
Proven Track Record

Trusted by leading sugar & distillery groups

Aeration tanks, blowers and clarifier of a distillery effluent treatment plant built by SBS Water at Southern Bioenergy
Featured Project

Balrampur Chini Mills, Balrampur (UP)

A 2,400 KLPD sugar ETP with Ultrafiltration and Reverse Osmosis, recovering treated effluent for reuse within the plant.

  • 2,400 KLPDPlant capacity
  • ETP + UF + ROTreatment scheme
  • SugarIndustry
  • ReuseTreated water recovered
Clarifier, treatment tanks and pressure filters of the sugar ETP at Belgaum Sugars
Belgaum Sugars - 1,200 KLPD Sugar ETP
Circular 25 m clarifier of the effluent treatment plant at Satish Sugars
Satish Sugars - ETP clarifier
Aerial view of the effluent treatment plant at Balaji Sugars, with two clarifiers and aeration basins
Balaji Sugars - ETP
Secondary clarifier with scraper bridge
Secondary clarifier with scraper
Multigrade and activated carbon filters
Multigrade & carbon filters
ClientPlantCapacity
Balrampur Chini Mills, BalrampurSugar ETP + UF + RO2,400 KLPD
Ayyan Multitrade LLPETP & CPU2,200 KLPD
Mrunal Sugars Ltd., DharwadCPU & ETP1,550 KLPD
Belgaum Sugars Ltd., BelgaumSugar ETP1,200 KLPD
Quenergy Sugars Pvt. Ltd., SolapurETP1,200 KLPD

Upcoming in 2026: ETP for MRN Bhima Sugar & Power (1,500 KLD), new ETPs for Satish Sugars (1,600 KLD) and Mrinal Sugars (1,200 KLD), and ETP upgradation for Satish Sugars (1,200 KLD).

Why SBS Water

Why industries choose us

  • 01

    Effluent specialists

    Focused expertise in sugar and distillery effluent treatment.

  • 02

    Advanced anaerobic tech

    CSTR, UASBR and anaerobic filters for high-strength effluent.

  • 03

    Single-source supplier

    ETP, CPU, WTP, STP, RO and ZLD from one partner.

  • 04

    In-house manufacturing

    Our Talawade facility ensures quality and timely delivery.

  • 05

    New plants & upgrades

    Greenfield projects and revamps of existing ETPs.

  • 06

    Regional presence

    Offices in Pune, Talawade and Nipani for faster support.

FAQs

Frequently asked questions

What is an Effluent Treatment Plant?

An ETP treats industrial wastewater to remove organic load (COD/BOD), suspended solids, oil & grease and other pollutants, so the water can be safely reused or discharged within pollution control board norms.

What type of effluent do sugar mills and distilleries generate?

Sugar mill effluent comes from floor washing, equipment cleaning, boiling house and cooling sections. It is acidic (pH 4-5) with high COD and BOD, plus bagasse fibres, oil and grease. Distilleries generate high-strength process effluents that need robust anaerobic treatment.

Why use anaerobic treatment before aerobic?

Anaerobic systems such as CSTR remove most of the COD with low power use and generate biogas. Aerobic treatment then polishes the remaining load, keeping blower power and sludge lower than an aerobic-only plant.

Can the treated effluent be reused?

Yes. After tertiary filtration and disinfection, treated water can be used for gardening, irrigation and utilities. With UF and RO added, it can be recovered for process or cooling tower reuse, moving towards Zero Liquid Discharge.

Do you upgrade existing ETPs?

Yes. We troubleshoot and upgrade existing ETPs, including capacity enhancement, adding anaerobic or tertiary stages, replacing equipment and improving outlet quality to meet revised norms.

Do you help with pollution control board approvals?

Statutory approvals are in the client's scope, but we provide technical documentation and support for pollution control board requirements whenever needed.

Need an ETP that meets norms and enables reuse?

Share your effluent analysis and flow. Our engineers will design a treatment scheme suited to your plant and discharge requirements.

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