Clearwater Industries works with SigmaDAF to manufacture dissolved air flotation (DAF) clarifiers for your operation.

SigmaDAF clarifiers separate oils, fats, suspended solids, and flocculated matter, which do not have sufficient flotation capacity or when oil and solid emulsions (with high density) require air flotation to improve the separation process. Micro-bubbles (30-50 micron) pull impurities to the top, where they’re scrapped off as sludge. Plus, an auger transport system removes sludge from the bottom of the clarifier.

The SigmaDAF clarifier line serves many industries, including food processing, chemical refining, and mining.

Product: FPAC

Applications: FBR (flotation biological reactors), sludge thickener, slaughterhouses, rendering plants, poultry processing, meat processing, fish processing and packing, pulp and paper industry, textile industry, food processing.

Capacity: 22 – 704 gpm

Features: Cross-flow system. Suitable for high solids loads, static thickener, easy operation, low maintenance, unique skimmings dewatering system, auger thickener/transport system for bottom sludge (PWL).

DAF FPAC
DAF FPBC SYSTEM

Product: FPBC

Applications: Potable water, power plants, MBBR clarifiers, poultry processing, meat processing, fish processing and packing, mining industry, petrochemical industry, pulp- and paper industry, textile industry.

Capacity: 66 – 1100 gpm

Features: Counter-current flow. Suitable for highly contaminated water, easy operation, low maintenance, compact modular construction, unique skimmings dewatering system, auger thickener/transport system for bottom sludge (PWF).

Product: FPHF

Applications: Potable water, power plants, FBR (Flotation biological reactors), MBBR clarification, slaughterhouses, oil refineries, dairy plants, fish processing, pulp, and paper industry.

Capacity: 880 – 4400 gpm

Features: Combination of counter-current and cross-flow.  Suitable for high volumes of water, easy operation, low maintenance, unique skimmings dewatering system, auger thickener/transport system for bottom sludge.

DAF FPHF SYSTEM

The FPAC treats small to medium flow rates with very high loads of contaminants (impurities, solids).

  • Achieve sludge with a dry solids content 3 to 4 times higher than a conventional system
  • Large surface area for floating sludge accumulation (8 lbs of dry matter treated per sq ft)
  • Floated and settled sludge discharge

FPAC Specifications

Features:

  • Cross-flow system
  • Single movement separator rotates against the hydraulic flow to minimize the skimming distance and eliminating solids carry-over
  • Saturator-manifold
  • Recirculation pump
  • Control panel to control the air supply to the aeration module and the sediment discharge valve
  • Sludge that settles to the bottom of the system is retained, concentrated, and partially dewatered with the shaftless conveyor system. This allows the operator to control sediment concentration and reduce sediment build-up. The residual sludge is transported to the central discharge point and removed through an automatic pneumatic valve. This discharge cycle has a self-cleaning effect and facilitates that any particle adhering to the walls of the system is released and eliminated with the rest of the waste.

Industrial Applications:

  • Slaughterhouse and rendering plants
  • Textile production
  • Processing plants
  • Pulp and paper industries
  • Fish processing facilities

SigmaDAF's FPAC clarifier onsite at a job.

The FPBC treats large flow rates with low to medium loads of contaminants (impurities, solids), including those with low buoyancy particles.

  • Achieve sludge with a dry solids content 3 to 4 times higher than a conventional system
  • Floated and settled sludge discharge

FPBC Specifications

Two FPBC DAF clarifiers inside at the manufacturing plant.

Features:

  • Counter-current flow principle achieved through inclined corrugated plate pack.
    • Plate separating technology obtains maximum separation efficiency with very low overflow rates
  • Single movement separator rotates against the hydraulic flow to minimize the skimming distance and eliminating solids carry-over
  • Saturator-manifold
  • Recirculation pump
  • Control panel to control the air supply to the aeration module and the sediment discharge valve
  • Sludge that settles to the bottom of the system is retained, concentrated, and partially dewatered with the shaftless conveyor system. This allows the operator to control sediment concentration and reduce sediment build-up. The residual sludge is transported to the central discharge point and removed through an automatic pneumatic valve. This discharge cycle has a self-cleaning effect and facilitates that any particle adhering to the walls of the system is released and eliminated with the rest of the waste.

Industrial Applications:

  • Mineral oil and petrochemical industries
  • Textile production
  • Poultry, red meat, and fish processing plants
  • Fast food manufacturers

A computer drawing of a DAF FPBC clarifier.A computer drawing of the top of a DAF FPBC clarifier.

The FPHF treats large flows with large loads of contaminants (impurities, solids).

  • Sludge with a dry solids content 3 to 4 times higher than a conventional system
  • Attainable volume treatment above 100%, compared to conventional plate separators, which have mostly an overflow rate of at least 3m3 per m2 per hour
  • Floated and settled sludge discharge

FPHF Specifications

SigmaDAF's FPHF DAF Clarifier outside at a job site.

Features:

  • Plate pack technology with a combination of cross-flow and counter-current flow.
  • Single movement separator rotates against the hydraulic flow to minimize the skimming distance and eliminating solids carry-over
  • Aerator
  • Recirculation pump
  • Pneumatic switch
  • Control panel to control the air supply to the aeration module and the sediment discharge valve
  • Sludge that settles to the bottom of the system is retained, concentrated, and partially dewatered with the shaftless conveyor system. This allows the operator to control sediment concentration and reduce sediment build-up. The residual sludge is transported to the central discharge point and removed through an automatic pneumatic valve. This discharge cycle has a self-cleaning effect and facilitates that any particle adhering to the walls of the system is released and eliminated with the rest of the waste.

Industrial Applications:

  • Ballast water treatment
  • Edible oil refineries
  • Food processing plants
  • Pulp and paper industries
  • Fish processing facilities
  • Petrochemical industry

A computer drawing of the DAF FPHF clarifier.

 

A unique technology that guarantees maximum efficiency throughout the life of the equipment.

SmartDAF vision leads to the optimization and complete efficiency of our range of products.

Our 40 years of experience in wastewater treatment has allowed us to develop a unique SmartDAF technology that guarantees maximum efficiency throughout the life of the equipment.

  • Operational and energy efficiency
  • Comprehensive resource optimization: energy, water, reagents, sludge, etc.
  • Minimal human intervention
  • Preventive and corrective maintenance
  • Durability

Tech

It allows the highest levels of interaction and adjustability in the industry thanks to our integration technology of variable frequency drives, positioners, timers, pressure regulators, and high precision meters from international benchmarks.

Control

High-end PLC capable of processing information and converting it into effective orders for mechanical and electronic elements to achieve the objectives of the system.

Sigma SmartDAF Basic

The data collected in the measurement equipment and processed in the PLC give rise to operational orders, but it is the operator or person in charge of the equipment or treatment plant who sets the SETPOINTS according to their experience or the indications of SIGMA.

Sigma SmartDAF Premium

The operating base is the same but BIGDATA and ARTIFICIAL INTELLIGENCE processes will be incorporated so that the system itself, without human intervention, makes corrections based on the data collected.  This level allows the system to order reagents, schedule sludge and waste collection, maintenance operations, anticipate possible incidents due to wear, and, in short, continuously improve operations.

Sensitivity table