Water film type Scrubber Deoriser

Capturing odors with water film
Low pressure loss
Minimizing sludge generation
Running cost reduction
Easy maintenance

FY2005 Kansai Bureau of Economy, Trade and Industry NBK Grand Prize Prize in the Environment and Amenities category

Deoriser makes a difference compared to other scrubbers!
Four features of Deoriser

To say nothing of various odor-causing substances, fine powder dust can be captured reliably as well by the water film.

Water film formed on the screen realizes 100% gas-liquid contact efficiency.

Compared to conventional-type scrubbers, running costs are greatly reduced.

The air diffusion device Aquablaster is installed. Water putrefaction is prevented to minimize sludge generation.

Water film type Scrubber Deoriser is an earth environment-friendly high performance scrubber equipped with a circulating water purification unit.

1 Capturing odor components and fine powder dust

Odors and dust are captured without fail.

2 Realizing 100% gas-liquid contact with water film

About 40 mm of water film shuts exhaust gas out.

3 Adopting a cartridge-type screen

Replacement is easy with a screen 50 cm square.

4 Incorporating the Aquablaster

Water putrefaction is prevented to enable long-term use of circulating water.

Next-generation deodorizing system that revolutionized the traditional concept of deodorization “Water film type Scrubber Deoriser”

Employing water film, high gas-liquid contact efficiency is realized to capture odor components without fail.

The interior of the tank is equipped with a diffusion pipe Aquablaster unit that biodegrades organic matter added to the water,

which minimizes circulating-water putrefaction and sludge generation, enabling long-term closed water circulation.

Water film type Scrubber Deoriser is a next-generation ultra-high-performance dust collection and deodorization unit that completely eliminated the weak points of conventional water cleaning scrubber type deodorizing equipment.

Unbelievable capturing power! Compare with other scrubbers!

Up to this volume was captured only in a few hours!

Here's the difference with other scrubbers!

Capturing with water film ensures that odors and dust are captured without fail!
Cartridge type contact material makes maintenance easy.
Built-in high-performance diffusion pipe Aquablaster minimizes sludge generation and prevents water putrefaction!

Annual running costs become lower compared to other scrubbers.

Features of the Water film type Scrubber Deoriser cleansing deodorization unit

High gas-liquid contact efficiency is realized by forming water film on screens.

Special layered stainless-steel screen

Easy-to-replace cartridge type

Conventional scrubber A lot of infill material required

Deoriser Replaceable by only one person

Hard to clog and makes pressure loss hard to change

Conventional scrubber Infill material clogged

Deoriser Circulating water purification prevents clogging as well.

The water film type Scrubber Deoriser prevents water from putrefying and makes sludge generation difficult.

Conventional scrubber Water putrefies, and sludge is generated.

Deoriser Water is purified with the Aquablaster diffusion pipe.

The water film type Scrubber Deoriser responds to a wide variety of odor-causing substances in diverse plants.

Deodorization methods and business applications ○Application、△Conditionally applied、×Not application

Method of deodorization		Printing plant	Paint plant	Casting and forging	Chemical plant	Food plant	Paper/pulp	Textile plant	Sewage/Garbage	Feed/Fertilizers	Restaurant
Combustion	Direct combustion	△	△	△	△	△	△	△	△	△	×
	Stored-heat combustion	○	○	△	△	△	△	△	△	△	×
	Catalytic combustion	○	○	△	△	△	△	△	△	△	×
Adsorption	Fixed-bed collection	○	△	△	○	△	△	△	△	△	×
	Fluid collection	○	△	△	○	△	△	△	△	△	×
	Honeycomb concentration	○	△	△	○	△	△	△	△	△	×
	Replacement adsorption	○	△	△	○	△	△	△	△	△	×
Cleansing	Water	△	△	△	○	○	○	○	○	○	○
	Acid / Alkali	△	△	△	○	○	○	○	○	○	△
	Oxidizing agent	△	△	△	○	○	○	○	○	○	△
*	Deoriser	△～○	○	○	○	○	○	○	○	○	○
Biological deodorization	Soil filter deodorization	△	△	△	△	△	△	△	○	△	×
	Scrubber deodorization	△	△	△	○	○	○	○	○	○	×
	Packed tower deodorization	△	△	△	△	○	○	○	○	○	×
	Aeration deodorization	△	△	△	△	△	△	△	○	△	×

*Deoriser technology combines cleansing and biological deodorization.

Bio Deoriser odor reduction rates

Substance		Concentration reduction rate for substance	Solubility in water	Neutralization	Flow-through velocity
Nitrogenous compounds	Ammonia	○	54g/100ml	Required	0.75～1.0 m/sec
	Trimethylamine	○	108g/100ml
	Dimethylamine	○	23.7g/100ml
	Diethylamine	○	Completely soluble
Sulfurous compounds	Methyl mercaptan	○	2.3g/100ml	Required	0.75～1.0 m/sec
	Hydrogen sulfide	○	0.67g/100ml
	Methyl sulfide	○	Unknown
	Methyl disulfide	○	Unknown
Aldehydes	formaldehyde	○	Completely soluble	Not Required	0.5～0.75 m/sec
	Acetaldehyde	○	Freely soluble
	Propionaldehyde	△～○	22g/100ml
	Normal butyraldehyde	△～○	Unknown
	Isobutyraldehyde	△～○	11g/100ml
	Isomer valeraldehyde	△～○	Unknown
	Isovaleraldehyde	△～○	Unknown
	Isobutanol	△～○	8.7g/100ml
VOC	Ethyl acetate	△	8.7g/100ml	Not Required	0.5m/sec以下
	Methyl isobutyl ketone	△	1.8wt%
	Toluene	×～△	Insoluble
	Xylene	×～△	Insoluble
	Styrene	×～△	30mg/100ml
	Isopropyl alcohol	○	Completely soluble
	Methylethylene	△～○	29g/100ml
	Formaldehyde	○	Completely soluble
	Propyl acetate	△	2.3wt%
	Cyclohexane	×～△	Insoluble
	Phenol	△～○	8.4g/100ml
	PGME	○	Completely soluble
	PGMEA	○	20g/100ml
	N-methyl-2-pyrrolidone	△～○	Unknown
	Acetone	△～○	Freely soluble
	Methanol	○	Freely soluble
	Ethanol	○	Freely soluble
Fatty acid	Propionic acid	△～○	Unknown	Required	0.5～0.75 m/sec
	Normal butyric acid	△～○	Unknown
	Normal valeric acid	△～○	Unknown
	Isovaleric acid	△～○	Unknown

*Figures indicate the average reduction rates for Deodorizer single shower specification, but these should be considered as references only as rates may vary depending on odor source concentration. We recommend performing an actual deodorization with a test device at the site in question.

Why is water film necessary? Necessity of water film

Examining things at the microscopic level…

The width of net-type infill material is approximately 2 mm and the openings approximately 5 mm. Looking at the microscopic level, odor-causing particulates have a diameter of one to five microns, and the water droplets that dislodge these particulates are about 150 microns in diameter.

If we multiply these measurements by 1,000, we can visualize the particulates as 1 mm to 5 mm specks, and the water droplet the size of a softball, 15 centimeters across.

Now visualize the infill material as being the width of a narrow road – two meters – while the openings are five meters in width, and it is easy to see why the gas-liquid contact is poor.

Gas-liquid contact mechanism

_{Ammonia (NH3) With gas volume 300m³/min, 50ppm⇒5ppm (90%reduction) Comparison chart}

	Remarks	Conventional scrubber	Deoriser
Liquid(L) / Gas(G)	The higher the ratio of liquid to gas, the higher the gas-liquid contact efficiency.	530L/min / 300m³/min L/G = 1.7 *When circulated water goes through one pass	1960L/min / 300m³/min L/G = 3.2 *Water is circulated
Infill material thickness	A very important point is that infill material resists obstruction for easy maintenance.	1,700mm *Causes obstruction	40mm x 2 layers *Almost no obstruction
Pressure loss	Lower pressure loss means that fan consumes less electricity and energy efficiency is improved.	700mmAq *Obstruction increases pressure loss	800mmAq *No change in pressure loss

Revolutionary, specialized multi-layered stainless steel screen comes as standard feature in all Deoriser units

Treatment method determination flowchart

*An organic solvent may melt FRP and PVC.
*Including Deoriser, there is no perfect deodorization method. We recommend carefully checking and determining a treatment method by eliminating ineffective ones.

It is possible to carry out a demonstration experiment in the actual place.

By clarifying at which point the customer can be satisfied in a demonstration, various risks can be resolved.

Applications/Supply record

The water film type Scrubber Deoriser responds to a wide variety of odor-causing substances in diverse plants.

Casting plant exhaust gas treatment

Pharmaceutical plant exhaust gas treatment

Organic solvent exhaust gas treatment

Paint plant exhaust gas treatment

Chemical plant exhaust gas treatment

Download case example document

Deoriser circulating water treatment methods

1 Settling tank purification method

This is a method in which water that has finished circulating is transferred to a separate tank and gradually treated. For example, five tons of circulated water treated over 90 days means that only 55 liters of water needs to be treated per day, minimizing the load on wastewater treatment facilities and enabling diluted discharge.

2.Water-treatment system simultaneous use method

This method entails installing an Aience unit tank side by side with the Deoriser and regularly purifying and discharging water. Depending on the rate of water circulation, oil separating system or coagulator may also be used. This method is geared toward businesses without wastewater treatment or sewage water facilities.

3.Sewage water discharge method

Circulating water is discharged at appropriate intervals at levels permissible under sewage water discharge standards. At first, it is necessary to perform a series of data measurements and determine the length of use that will result in levels exceeding the sewage water discharge standards. However, once these have been performed this is a highly labor saving method.

Application	Duration between circulating water exchanges
Paint drying furnace exhaust gas treatment	1 to 4 months
Chemical factory exhaust gas treatment	1 to 4 months
Food factory exhaust gas treatment	1 to 4 months
Restaurant exhaust gas treatment	3 to 6 months

4.Industrial waste method

Circulating water is used continuously for as long as possible, and then disposed of as industrial waste. This method does not meet zero-emission targets, but it is suitable for businesses without wastewater or sewage water treatment facilities. The cost is reasonable as well, with five tons of circulating water being used for five months resulting in a per-ton cost of 35,000 yen, or 1,170 yen per day.

5.Fixed-quantity water injection method

Fixed quantities of water are injected, controlled by a solenoid valve, keeping the circulating water continually overflowing and water being discharged within the permissible water discharge standards. This method is largely geared toward businesses with access to groundwater or other reasonably priced water sources.