Clearwater Industries works in conjunction with SigmaDAF to manufacture dissolved air flotation clarifiers.  These units serve a wide array of industries including food processing, chemical refining, and mining.  The comprehensive line of DAF clarifiers are capable of handling a myriad of applications.  The DAF line includes the DAFFPAC, DAFFPBC, DAFFPHF, and SmartDAF.

Product: FPAC

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

Capacity: 176 – 5650 ft3/hr

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).

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: 7063 – 35315 ft3/hr

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.

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: 177 – 6180 ft3/hr

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).

DAF FPAC equipment is a high performance and quality system with differentiated characteristics.

Ideal for working with small and medium flow rates and with very high loads of contaminants to be removed.  They are a low profile built cross flow separator with a lot of free surface area where the floated mud can accumulate.

The DAF FPAC flotation equipment is a large area flotation clarification and cross flow separation system.

The system has been designed to treat wastewater streams with a very high load of suspended solids and other contaminants, which require a large flotation surface to ensure good flotation and solids separation. (Up to 40kg of dry matter can be treated per m²)

Dissolved and pressurized air flotation systems treat polluted water that enters one end of the machine and expels the same clean water through the other end.

SIGMADAF technology is used to 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.

The use of micro-bubble technology (30 – 50 microns) increases separation efficiency.  The smaller the bubble, the better it can adhere to the particles, enhancing the efficiency of the system.

The DAF FPAC is a high-performance system with a number of distinctive features.

It includes a single separating movement that rotates against the hydraulic current helping to minimize the distance that the floated sludge travels and eliminating the carry-over of solids in the effluent.  This solution creates a sludge with a dry solids content 3 to 4 times higher than a conventional system.  The result is a reduction in the need and size of any future treatments, such as dewatering or drying, thereby reducing operating costs.

The heavy 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.

The system is equipped with a saturator-manifold, recirculation pump, and control panel as standard to allow control of the air supply to the aeration module and the sediment discharge valve.

Due to the application of parallel plate technology, the DAF FPBC system exerts maximum contaminant separation efficiency.

Ideal for working with large flows and with measures and low loads of pollutants to be removed.  They are very high-profile equipment that incorporates internal lamellar circuits to minimize the speed of passage of water in a reduced total volume.

The DAF FPBC flotation system is a high profile separator designed to treat low to medium load wastewater, even those containing low buoyancy particles.

The system is based on the principle of countercurrent flow, through a package of inclined corrugated plates.  Water is introduced into the system in a cross-flow configuration that significantly reduces the distance solids must travel to effectively separate.  Inside the compact separator, a package of inclined lamellar plates has been installed to obtain a maximum effective float area.  The speed of separation is determined by the flow (Q) and the effective surface of the plate (S), therefore, the particles that reach a higher upward speed (by means of micro bubble aeration) than the overflow speed (Q / S), they will be separated.

Due to the application of plate separation technology, maximum separation efficiency is obtained with very low hydraulic ratios, which makes the separators compact and effective.

Dissolved Air Flotation (DAF) technology is used to remove suspended oils, fats, solids, and flocs that do not have enough buoyancy to separate; or where an emulsion of oils and solids (with higher density) requires flotation with air to improve the separation process.

The use of micro-bubbles (30 to 50-micron range) increases efficiency, as smaller bubbles easily adhere to particles of the same size or larger, increasing the overall efficiency of the system.

The DAF FPBC is a high-performance system with distinguishing features.

It includes a single separating movement that rotates against the hydraulic current helping to minimize the distance that floated sludge travels and eliminating the carry-over of solids in the effluent.  This solution creates a sludge with a dry solids content 3 to 4 times higher than a conventional system.  The result is a reduction in the need and size of any future treatments, such as dewatering or drying, thereby reducing operating costs.

The heavy 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.

The system is equipped with a saturator-manifold, recirculation pump, and control panel as standard to allow control of the air supply to the aeration module and the sediment discharge valve.

Key Features:

  • Effective separation surface compared to other systems with low investment costs
  • Compact system
  • Unique sludge de-watering and removal system, producing a highly concentrated sludge
  • Efficient laminar flow regime
  • Low maintenance and easy to operate
  • Custom-built

Industrial Applications:

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

DAF FPHF equipment is a high-performance system that works with very high flow rates and with a large amount of pollutants.  They’re the ideal equipment to work with large flows and, at the same time, work with all kinds of pollutant loads.

The DAF FPHF flotation system is a separation system that represents an improvement over existing lamellar plate technology that uses a combination of cross flow and counter current flow.

This technology was originally developed for special high flow applications with substantial suspended solids content.

The high flow requires a better distribution of it.  The lamella pack entry zone is divided into equal parts to ensure the complete and uniform use of the entire lamella surface within the system.  In practice, very low hydraulic load ratios are achieved compared to conventional plate separators, which mostly have a hydraulic ratio of at least 3 m³ per m² per hour.

Dissolved Air Flotation (DAF) technology is used to remove suspended oils, fats, solids, and flocs that do not have enough buoyancy to separate; or where an emulsion of oils and solids (with higher density) requires flotation with air to improve the separation process.

The use of micro-bubbles (30 to 50-micron range) increases efficiency, as smaller bubbles easily adhere to particles of the same size or larger, increasing the overall efficiency of the system.

The DAF FPHF is a high-performance system with differentiated characteristics.

It includes a single separating movement that rotates against the hydraulic current helping to minimize the distance that the floated sludge travels and eliminating the carry-over of solids in the effluent.  This solution creates a sludge with a dry solids content 3 to 4 times higher than a conventional system.  The result is a reduction in the need and size of any future treatments, such as dewatering or drying, thereby reducing operating costs.

The heavy 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.

The system is equipped with a saturator-manifold, recirculation pump, and control panel as standard to allow control of the air supply to the aeration module and the sediment discharge valve.

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 the corrections based on the experience acquired.  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