DAF Systems / P-Series (welded polypropylene) DAF Systems

The performance of a Dissolved Air Flotation System depends primarily on the ratio of the pounds of air to the pounds of solids required to achieve a given degree of clarification. The P-Series DAF Systems are constructed from welded polypropylene. The P-Series design incorporates a V-bottom unlike traditional flat bottom DAF systems. The V-bottom design includes a screw augur for removal of sediment. The P-Series offers a low maintenance, automatic, affordable solution for liquid / solid separation.

D-Series DAF Systems | P-Series DAF Progressive Water Extration.PDF | P-Series DAF Brochure | P-Series Air to Solids Ratio.PDF |

P-Series Polypropylene DAF Systems....

The P-Series represents the first polypropylene constructed high performance Dissolved Air Flotation (DAF) system ever. The system provides flexibility, durability, and performance while assuring affordability.

The design incorporates all of the latest advances in liquid/solids separation technology and provides unique corrugated flow baffling, air saturation, chemical flocculation, and sludge removal. The flow system is particularly notable as it assures the most rapid flotation while minimizing hydraulic resistance to settling.

Since adequate mixing is so vital to performance, a state of the art flocculation system is standard on every DAF system that we manufacture. Automation can vary from an economical manual system to complete touch screen and PLC control.

All systems are skid mounted, pre-plumbed, and pre-wired. A wide variety of options allows us to customize the system to meet the customers performance and automation requirements. Ancillary equipment includes polymer feed systems, sludge tanks, sludge dewatering systems, feed and discharge pumps and additional process control instrumentation. Pilot plants are available.

An affordable, reduced footprint, high performance DAF System. Ecologix presents the first polypropylene constructed high performance Dissolved Air Flotation (DAF) system ever. The system provides flexibility, durability, and performance while assuring affordability.

FEATURES

Unique Polypropylene Construction
Unmatched Plate Pack Baffling System
Significantly Reduced Footprint
Advanced Air Saturation System
State of the Art In-line Flocculation
Top & Bottom Cone Sludge Removal
60-8000 GPM System Flow Designs
Maximum Solids Recovery
Superior Effluent Quality
Low Operational & Capitol Costs
Flexible Design Options

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Technical Design Principles....Stoke's Law, Reynolds Number and Brownian Motion provide the foundation for liquid / solid separation......

A particle separates faster as

The velocity of water decreases
The particle size increases
The density difference between liquid/solid increases
The concentration of solids decreases

The particle in the waste stream must be able to travel from the bottom to the top of the DAF within the retention time in the unit.

Vt = Rise Rate (ft./min.)
....= Depth (ft.) / Retention Time

The hydraulic loading rate must not exceed the the particle rise rate for separation to occur.

Vu = Hydraulic Loading (Underflow) Rate
.....= gpm/ft2 = ft3/ft2 = ft/min

P-Series DAF Systems
	Flow	Approx. Dimensions			Pipe Diameter (In.)			Weight (Lbs.)		Nikuni Dissolved Air				Rake
Model	GPM*	W	L	H	Influent	Effluent	Sludge	Shipping	Operating	Model	HP	Quantity	T-HP	HP
P-15MS	60	4'-6"	7'-2"	7'-6"	2"	4"	1.5"	2,700	8,400	M32NDP-15	3	1	3	0.25
P-30MS	120	4'-6"	9'-9"	7'-6"	3"	4"	1.5"	3,300	11,100	M40NP	5	1	5	0.25
P-4S	180	6'-5"	9'-2"	9'-6"	4"	6"	2"	4,300	17,700	M50SP-1	10	1	10	0.25
P-11S	500	6'-5"	15'-5"	9'-6"	6"	8"	3"	5,700	28,100	M65SP	20	1	20	0.5
P-17S	750	6'-5"	20'-6"	9'-6"	8"	10'	3"	7,200	37,400	M80SP	30	1	30	1
P-3L	1200	12'-0"	14'-9"	14'-6"	10"	12"	3"	10,400	71,300	M80FP	30	1	30	1
P-6L	2400	12'-0"	20'-0"	14'-6"	18"	24"	3"	13,000	95,700	M80FP	30	2	60	1
P-10L	4000	12'-0"	27'-2"	14'-6"	24"	24"	6"	16,500	128,300	M80FP	30	4	120	3
P-13L	5000	12'-0"	32'-6"	14'-6"	24"	36"	6"	19,100	152,700	M80FP	30	4	120	3
P-16L	6300	12'-0"	37'-8"	14'-6"	24"	36"	6"	21,600	177,000	M80FP	30	5	150	5
P-20L	8000	12'-0"	44'-8"	14'-6"	36"	36"	6"	25,100	209,600	M80FP	30	7	210	5
*Flow rates bases on TSS of 1500-3000 ppm. Flow capacities are adjusted if outside this range. All weights and dimensions are approximate.

Traditional DAF systems are manufactured from Steel, Stainless Steel or Concrete. We have developed a means to construct the RESOURCE DAF from welded POLYPROPYLENE....

Cost Advantage (20% - 40%) Polypropylene is less expensive than any type of steel. It is also safer to work with.
Treatment Flexibility - Polypropylene can tolerate a much wider pH range than any traditional materials. This broadens the treatment techniques significantly improving efficiencies and reducing operational costs.
Longevity - Polypropylene will outlast even stainless steel in most applications

Traditional DAF systems do not consider bottom sediment removal or have engineered a V-Bottom with a screw augur for removal of the sediment. A flat bottom creates heavy maintenance and down-time requirements. A screw augur must have bearings to support it which will be subject to sand and grit. Again, the net result is heavy maintenance and down-time requirements. We have designed a cone bottom system which allows online removal of sand and grit automatically. A timer function activates an automatic valve to provide this removal. The auto valve is installed with manual isolation valves and cleanouts to ease maintenance and prevent down-time requirements. The result is a low maintenance, automatic, money saving design.