Oily Water Separator

EPS Oily Water Separator

Industries/Application

Oil Absorbent

Soil Pollution

Car-wash Wastewater

Stromwater Management

Stromwater Treatment

Stromwater Tank

Coalescing Media Pack

E-Catalog

HOME > Products > EPS Oily Water Separator

Oily Water Separator

EPS Oily Water Separator (EGG Plate Separator)

EPS Oily Water Separator (EGG Plate Oil Water Separator) is a system for separating oil from water in the mixture, which is based on the dissimilitude of specific gravity (:buoyancy) between oil & water. The type is to fill up the EPS pack in the fourcorne & tank to raise the separation capability of the mixture by the action of separation with EPS pack.

EPS Oily Water Separator is rated as the latest mode and operates in physical way. It can be operated without power supply. It has excellent efficiency of oily water separation & sludge removal. And it can be used semi-permanently just by cleaned every 6000 hours without pulling out the pack.

Principle of EPS Oily Water Separator PACK

The principle of oily water separating follows 'STOKE'S LAW' based on the dissimilitude of specific buoyancy (specific gravity) in oil water mixture and mixture's floating by the buoyancy.

Therefore the 'STOKE'S LAW' is efficiently applied to this EPS Oily Water Separator and in rectangular tank oil-water mixture passes through the lots of egg shape plates which piled up horizontally at regular intervals. Then, oil drop and sludge have regular speed of current and oil drops may rise up to the hole by the buoyancy, the sludge may go down by the specific gravity.

The oil drops which gathered around the tops of egg-shape plates rise to the surface through the oil-hole and the sludge which gathered around the hollows of plates falls down to the sediment area. In consequence of this, lots of horizontal plates reduce the time needed for oil drops to rise by hundreds time. Therefore each size and specific gravity of the oil drops and the sludge which should be removed, determine both rising time and subsiding time. So the interval and quantity of EPS PACK are decided according to above.

This is the essential spare part of EPS Oily Water Separator. It is designed by our company's own technology. This EPS PACK forms the woven plates which are piled up at regular intervals and each plate egg shape has many holes. Some are on the top as oil holes and the others as sludge holes are on the hollow. And it serves as thousands of plates and reduces the time needed for the rise of oil.

It is provided oily water separating tank and used for the oil which has lower viscosity than engine oil in oil-water mixture. It also has very excellent efficiency of oily water separation.

It is generally placed on the fore treatment tank, and used in the higher viscosity oil or the part containing much sludge.

It has a wide plate gap, a good dispersion efficiency and a high viscosity. It is generally used for API, PPI, a substitute for CPI or DAF at the place of high viscosity, a large oil drop such as bunker oil & a crude oil and a large amount of remnants. Recently it is used for the gig speed sedimentation tank & the high speed rising tank.

WATER TANK
In the mixture of Water Tank the floating matters like oil. etc. are upside and minute oil drops ate rising in the middle park.
FLOATING OIL SKIMMER
Floating on the surface. It sucks the mixture from the upper layer compulsorily.
AIR DIAPHRAGM PUMP
AIR DIAPHRAGM PUMP pumps up the mixture to pour it to pressing rise equipment by force.
PRESSING RISE EQUIPMENT
01	DAF : Alter the air is pressed into the mixture in pressing tank and dissolved in it. then if the conditions get under the atmosphere, over dissolved air becomes small bubbles and the bubbles splatter. This formula utilizes the phenomenon that the bubbles are in electric failure and ascend tangled with oil, minute. etc., so that the mixture can be separated into oily water and sludge.

FORE TREATMENT TANK
01	In fore treatment tank, air-water separator separates air, oil, water and sludges first. Air exhausts through the air hole of air-water separator. As for mixture, centrifugal rotation-down-flow makes heavy sludge fall to the bottom and makes air drops, bubbles, light sludge, oil, and etc. Come up.
02	Division dam is horizontally laid a little higher than the water-level so that it can distribute, the mixture evenly and increase the horizontal-capacitive-efficiency of separator. Not removed oil in the oil-water mixture, by EPS pack, rises to the surface through the oil-holes on the top of plates and sludge falls down to the sediment-area through the sludge holes. (standard fore treatment tank plate interval is 16mm or 50mm)
03	Water-insoluble oil can be removed almost completely until the process of fore treatment tank.
04	Pipe oil skimmer can remove a lot of oil because the hole is made in the direction of horizontal length and it is designed to control the water level up and down to regular height with the handle and regulator outside.
05	The oil rising to the surface flows into the hole of Pipe Oil Skimmer which is adjusted at fixed height.(lower than water-level by 1mm)

OILY WATER SEPARATING TANK
01	Oily water separating tank clears off the water-insoluble oil to below the standard value.
02	Punch plates fixed in front and rear make oil-water mixture flow into evenly, so they can increase the capacitive-efficiency of the pack.
03	EPS pack pilled up horizontally at regular intervals produces the effect of tens thousands of plates and it shortens the oil-rising time by 1000 times. So it makes the oil rise to the surface rapidly and makes sludge fall down. Then if the base specific gravity of oil is 0.9, over 15 size oil drops can be removed 100% and the smaller sized drops can be removed over 90%. (standard interval of oily water separator plates is 8mm. However, for the oil of high-viscosity, the standard interval is 16mm)
04	The upper part of oily water separating tank is always clean because the oil raised by the pack is cut off by oil-cutoff dam and the oil flows into the pipe oil skimmer which is adjusted lower than the level of the water by 1mm.
05	Discharge dam maintains the water level in oily water separating tank at fixed height and lying horizontally is augments the horizontal-efficiency if oily water separator.
FILTER TANK
01	In filter tank, the oil (the oil can not rise because it has about the same specific gravity as water, oil with sludge, etc.) which could not be removed in the oily water separating tank is distributed impartially to the divergence pipe equipped in the upper part of filter tank and it can be filtered completely by passing through the oil- absorbent.
02	Separated clean water flows into the outlet of oily water separating tank.

OIL RE-SEPARATING TANK
01	API oily water separating tank is a device to re-separating water from the oil flowing from the pipe oil skimmer and the separated oil which has the thickness over 99% runs into the oil-outlet.
02	API cuts down the expenses of waste-oil disposal and enables the oil to be reused.
03	Water dam regulator should be adjusted lower than the oil-outlet by 5~10mm.
PIPE OIL SKIMMER
01	It is attached to the fore treatment tank & oily water separating tank.
02	The amount of oil removal is large since it gets opened in the horizontal direction.
03	The surface is designed to be adjusted correctly by the outer handle & the indicator.
04	The surface of separating tank is always keeps clean since the pipe oil skimmer so made lower than the surface by 1mm.
SLUDGE DRAIN EQUIPMENT
01	Sludge drain equipment furnished in the lower part of separating tank takes out the sludge which accumulated at sediment-area.
02	Ejector is attached to the end of sludge-outlet. Under the each plate, there are air-blow off pipe which helps blowing-off and drain. The valve furnished behind the ejector being shut down, if the sludge drain valve of separator and compressor air valve are open, the accumulated sludge in separator is blown off completely and adulterated with water. After a while, they ate drained all together. In the same way draw off sludge by opening the sludge drain v/v in other.

CLASS	Performance
EPS STANDARD	Efficiency 5PPM not exceeding
EPS - M	Efficiency 20PPM not exceeding
EPS - S	Efficiency 0.1% not exceeding
EPS - D	Efficiency 3PPM not exceeding
EPS - DAF	Efficiency 3PPM not exceeding

DROPLET RISE / FALL TIME
TRAVEL TIME FOR 8m/m DIST 68 (HR:MIN:SEC)
DIRT (SETTLING TIME)	DROPLET DIAMETER MICRONS	OIL (RISE TIME)
S.G 2.0	DROPLET DIAMETER MICRONS	S.G 85	S.G 90
0:00:02	300	00:00:01	00:00:02
0:00:01	150	00:00:04	00:00:06
0:00:01	120	00:00:06	00:00:01
0:00:02	90	00:00:12	00:00:08
0:00:04	60	00:00:17	00:00:40
0:00:06	50	00:00:39	00:00:58
0:00:09	40	00:01:00	00:01:30
0:00:16	30	00:01:47	00:02:41
0:00:36	20	00:04:01	00:06:02
0:01:04	15	00:07:09	00:10:43
0:02:25	10	00:16:04	00:24:06
0:09:39	5	01:04:17	01:36:25
4:01:03	1	26:47:03	40:10:35

For 15 oil the rising time of S.G 0.85 is 7 min 9 sec and the rising time of S.G 0.9 is 10 min sec
For 15 sludge, the sediment time of S.G 2 is 1 min 4 sec