● 水膜 スクラバー［ デオライザー ］

Examples of exhaust gas treatment equipment in use
at all kinds of plants□ Deoriser＆Deoblaster

Aience Inc.

■ BioDeoriser

Deodorization of organic solvents
Problem
When LCD color ﬁlters were washed with water-soluble organic solvents, solvent
odors were emitted, and there was concern about impact on neighboring facilities.

Challenges
No odors reach neighboring facilities

Solutions
Four BioDeoriser DR-30W units were used to treat exhaust gas emitted atvolumes of up to 1,200m3/min.

● Type of exhaust gas ： Water-soluble VOCs (volatile organic compounds)： 1,200㎥／min● Air volume： Deoriser DR-30W × 4units● ModelEﬀects
Initially, there were plans to use materials such as activated carbon forsecond-stage treatment, but these plans were abandoned as Deoriser alone cancapture and keep approximately 80% of PGMEA and other water-soluble organicsolvents. Bio Deoriser continues to function at this rate of eﬀectiveness today.

Problem悩み
When manufactured products were washed with organic solvents, solvent odors
were emitted and ﬂowed into an oﬃce in a separate building.

Challenges
Reliable capture of water-soluble organic solvents.

Solutions
One Bio Deoriser DR-30W unit was used to treat exhaust gas emitted at volumesof up to 450m3/min.

● Type of exhaust gas ： Water-soluble VOCs (volatile organic compounds)： 450㎥／min● Air volume： Deoriser DR-30W × 1unit● ModelEﬀectsOdor concentrations of 1,000 or greater were successfully reduced to levels
consistently below 400.

The customer
recognized theeﬀectiveness of ourVOC (volatile organiccompound) gas
capture technology.

Repeat orders
The customer recognized the eﬀectiveness of the previously delivered Bio
Deoriser, despite the diﬃculty of capturing VOC gas, and we received a repeat
order. One problematic occurrence the previous time was when a large amount ofa speciﬁc microorganism was generated in the groundwater, clogging the screen,
but a chlorine drip was used to keep the microorganism at low concentrations.

■ BioDeoriser

Problem
When LCD color ﬁlters were washed with water-soluble organic solvents, solvent
odors were emitted, and there was concern about impact on neighboringresidences.

Challenges
Minimizes impact on the vicinity

SolutionsTwo Bio Deoriser DR-30W units were used to treat exhaust gas emitted atvolumes of up to 800m3/min.

● Type of exhaust gas ： Water-soluble VOCs (volatile organic compounds)● Air volume： 800㎥／min● Model： Deoriser DR-30W × 2units

Eﬀects
It was veriﬁed that PGMEA, acetone and other water-soluble organic solvents
could be captured with ease, and a single-stage rather than two-stage water ﬁlm
treatment was suﬃciently eﬀective.

Paint drying oven exhaust gas deodorization plant
Problem
A combustion system was used for ﬁrst-stage treatment of exhaust gas emitted
by paint drying ovens, but the system was incapable of thorough treatment, andthere were complaints from neighbors. The fumes from drying ovens also
permeated the plant itself and created poor working conditions.

Challenges
Improving working conditions and eliminating complaints from neighbors.

SolutionsThree Bio Deoriser DR-30W units were used to treat exhaust gas at air volumesof 700m3/min after combustion treatment, with gas leaking at 350m3/min.

● Type of exhaust gas ： Paint drying oven exhaust gas● Air volume： 1,050㎥／min● Model： Deoriser DR-30W × 3units

EﬀectsComplaints from neighbors ceased, and it was possible to treat the leaked gasthat permeated the upper areas of the plant and resolve the problem.

Problem
When a new plant was scheduled for construction, there was concern over the ill
eﬀects of exhaust gas from paint drying ovens on others in the vicinity.

Challenges
The customer wanted to treat and emit exhaust gas from paint drying ovens atlow cost.

Solutions
One Bio Deoriser DR-4W unit was used to treat exhaust gas.

● Type of exhaust gas： Paint drying oven exhaust gas● Air volume： 50㎥／min● Model： Deoriser DR-4W × 1unit

EﬀectsNot a single odor-related problem has occurred since the plant was established.

■ BioDeoriser

Problem
For a new plant, the Environmental Department of the local authorities requested
that measures be taken to deal with odors of exhaust gas from paint drying ovens.

Challenges
The customer wanted to treat and emit exhaust gas from paint drying ovens atlow cost.

Solutions
One Bio Deoriser DR-16W unit was used to treat exhaust gas.

● Type of exhaust gas ： Paint drying oven exhaust gas● Air volume： 150㎥／min
Model●： Deoriser DR-16W × 1unit

Eﬀects
In ﬁve years of operation, despite highly concentrated emissions of exhaust gas,
there has been no odor-related trouble. Running costs have been kept low as well,with maintenance carried out just once every two or three months.

Odor countermeasures for foundry
ProblemOn the casting line, powerful odors such as those of resins were emitted, raisingconcerns both inside and outside the foundry.

Challenges
The system eﬀectively captures odorous substances such as ammonia-containing
resins, improving the work environment and preventing pollution.

Solutions
Four Bio Deoriser DR-30W units were used for liquid ﬁlm treatment of exhaust gas
emitted at air velocities of up to 1.83m / sec.

● Type of exhaust gas ： Deodorization of casting foundry (outside Japan)● Air volume： 2,800㎥/min● Model： Bio Deoriser DR-30W × 4units

Eﬀects
The work environment was signiﬁcantly improved, and discharge of odors to thevicinity was suﬃciently curtailed. We received additional orders for Bio Deoriser forother lines, as well.

Thanks to thepositive response,Deoriser wasincorporated into
existing facilities
as well.
Repeat orders
The exhaust gas treatment we previously installed on a new casting line achieved
positive results, and we installed Bio Deoriser units for exhaust gas treatment on
existing casting lines as well. We have received feedback from the customer tothe eﬀect that it does the job almost too well, but we cannot deny that sincemost of the pollutants are inorganic soot, some work is required to remove them.
We are dealing with this issue via our maintenance system in Thailand.

■ BioDeoriser

Problem
The customer sought prevention in advance of strong odors, including chemical
smells, generated by a new casting line.

Challenges
The system eﬀectively captures odorous substances and prevents pollution.

Solutions
One Bio Deoriser DR-16W unit was used for liquid ﬁlm treatment of exhaust gas
emitted at air velocities of up to 0.73m / sec.

● Type of exhaust gas ： Casting foundry exhaust gas● Air volume： 150㎥/min● Model： Bio Deoriser DR-16W × 1unit

Eﬀects
The work environment was signiﬁcantly improved, and discharge of odors to thevicinity was suﬃciently curtailed. We received additional orders for Deoriser forother lines, as well.

Organic exhaust gas deodorization equipment
ProblemSludge generated at a village wastewater treatment facility is dried in a drum, andwhen it is turned into fertilizer pellets, ammonia and other gases are emitted.

Challenges
Gases are rendered virtually odorless before emission.

Solutions
One Bio Deoriser DR-2W unit (made of PVC) and one dilute sulfuric acid drip
system were used to treat exhaust gas.

● Type of exhaust gas ： Fertilizer dryer exhaust gas： 20㎥／min● Air volume： Deoriser DR-2W (made of PVC) × 1unit● ModelEﬀects
pH is kept virtually within neutral range, and ammonia gas concentration is kept atlevels reduced from 100ppm to under 1ppm.

Problem
At a charcoal-grilled chicken plant, exhaust gas emitted during the manufacturing
process was polluting the local community, and no eﬀective deodorization
measure could be found.

Challenges
Eliminating pollution of the local communitySolutions
One Bio Deoriser DR-30W unit (FRP speciﬁcations) and one deodorizing agent
spray chamber were used to treat exhaust gas.

● Type of exhaust gas ： Charcoal-grilled chicken exhaust gas● Air volume： 400㎥／min● Model： Deoriser DR-30W × 1unit

EﬀectsOdor levels had been very high, but all complaints from the community wereeliminated.

■ BioDeoriser

Rubber product plant

Vulcanization process deodorization system

ProblemA scrubber system had been installed to capture dust contained wire fragments
generated during the cutting and polishing processes of rubber products
containing wire, but it did not capture the dust eﬀectively, and ﬁres broke out
inside the ducts.

Challenges
Eﬀective capture of rubber scraps and small wire fragments.

Solutions
Deoriser DR-4 (with built-in fan) × 1 unit per line were installed.

● Type of exhaust gas ： Rubber product processing exhaust gas● Air volume： 50㎥／min● Model： deoriser DR-4 (with built-in fan) × 1unit

EﬀectsRubber scraps and small wire fragments are captured eﬀectively, and ﬁres ceased
to break out inside ducts during the later-stage processes.

The customer
evaluated capture
capability andinstalled fouradditional units.
Repeat orders
Compared to the wet-type dust collection and deodorization
system used thus far:

1 Capture eﬃciency was markedly higher.
2 There was no worry about ﬁres in the ductin thelatter stage.
3 The screen was less apt to be blocked.
The customer recognized these beneﬁts, and ordered a totalof ﬁve more units.

ProblemDuring the vulcanization process at a rubber products plant, particulates andexhaust gas mixed with organic solvents were released, sparking complaints fromneighbors.

Challenges
Odors are kept to a level that the local community can accept.

SolutionsFirst-stage treatment was carried out with one Bio Deoriser SD-6 scrub duct unit.

● Type of exhaust gas ： Gas from rubber productvulcanization process● Air volume： 30㎥／min● Model： Scrub Duct SD-6 × 1unit

EﬀectsDepending on the results, it was thought that second-stage treatment might berequired, but complaints from neighbors were curtailed through ﬁrst-stage
treatment alone.

■ BioDeoriser

Problem
Customer wanted to capture and deodorize exhaust gases containing siloxane
and silicone, emitted during manufacture of rubber products, at low cost.

Challenges
These odors were reduced to a level of negligible concern before emission.

EﬀectsFirst-stage treatment was carried out with one Bio Deoriser SD-6W scrub ductunit.

● Type of exhaust gas ： Gas from rubber productvulcanization process● Air volume： 50㎥／min● Model： Scrub Duct SD-6W × 1unit

Solutions
Approximately 80% of siloxane was captured, but as expected, hydrophobic
siloxane escapes. The plant plans to install a chamber combining various types ofﬁlters for second-stage treatment.

Deodorization at industrial waste treatment plant
Problem
Customer planning a new food waste recycling plant wanted to ensure noodor-related trouble occurs.

Challenges
Deoriser reduces odors to a level that will not disturb the plant next door.

EﬀectsOne Bio Deoriser DR-9×1 unit was installed.

● Type of exhaust gas ： Fresh garbage odor deodorization● Air volume： 80㎥／min● Model： Bio Deoriser DR-9 × 1unit

Solutions
Food waste odors were eﬀectively captured, and the plant continues to operatewith no problems.

Problem
Customer wanted to prevent dissemination of putrefying odors from discarded milkcollected and stored.

Challenges
Odors from discarded milk pit reduced to virtually zero.

Eﬀects
One specialized FRP Bio Deoriser unit was installed.

● Type of exhaust gas ： Waste milk spoilage exhaust gas● Air volume： 500㎥／min● Model： FRP Deoriser (special type) × 1unit

Solutions
Putrefying odors were eﬀectively captured and the plant continues to operate withno problems.

■ BioDeoriser

Capture of formaldehyde gas from chemical factory.
Problem
Customer wanted to reduce concentration of formaldehyde gases generated
during manufacture, which are harmful to human health

Challenges
Caution is required to avoid corrosion, explosions, etc. because dangerous
exhaust gases that do not dissolve in water, such as carbon disulﬁde andhydrogen sulﬁde, are emitted along with formaldehyde.

SolutionsWith the Bio Deoriser DR-30W, we set internal air velocity at 0.68 m/sec so as tomaximize contact time.

● Type of exhaust gas ： Formaldehyde-containing gas● Air volume： 260㎥/min● Model： Bio Deoriser DR-30W

EﬀectsAs expected, carbon disulﬁde and hydrogen sulﬁde could only be captured at rates
of about 30% to 40%, but 95% or more of formaldehyde could be captured.

■ Deoblaster installation case examples
ProblemDespite the new plant having been designed for small air volumes emitted fromdrying ovens, exhaust gas was emitted at high concentrations, and the customer
needed to treat gas so that odors do not reach the surrounding community.

Challenges
Complaints from neighbors were eliminated.

Organic exhaust gas
deodorization system● Type of exhaust gas ： Drying oven exhaust gas● Air volume： 5.0㎥／min● Model： Deoblaster DB-330 × 1Solutions
One compact Deoblaster DB330 deodorization system was installed.

Eﬀects
Virtually all of the gas was successfully captured by water despite the gas sstrong acidity. A pH meter was coordinated with the system so that a caustic
soda drip could be used as a backup measure.

ProblemSludge generated at a village wastewater treatment facility is dried in a drum, andwhen it is turned into fertilizer pellets, ammonia and other gases are emitted.

Challenges
Gases are rendered virtually odorless before emission.

Deodorization of industrial
waste disposal site

● Type of exhaust gas ： Fertilizer treatment equipment exhaust gas● Air volume： 10㎥／min● Model： Deoblaster DB-480 × 1Solutions
One Deoblaster DB-480 unit was used to treat gases.

結 果
pH is kept virtually within neutral range, and ammonia gas concentration is kept atlevels reduced from 100ppm to under 1ppm.

■ BioDeoriser＆ Deoblaster

Installation examples
Major customers

ModelPurpose / Application

Location

DAIHATSU head plant industry

Electrodeposition gas scrubber circulating water system

Aldehyde gas reduction

Ikeda City,Osaka

Yakiniku genya

Subterranean deodorization system300㎥/min

Grilled beef deodorization

Miki City,Hyogo

Yakinikuya SAKAI Sagamiharaba main store

Deodorization system Neo-One 400㎥/min

Grilled beef deodorization

Sagamihara City,Kanagawa

Yakitori SOMI

Deodorization system Neo-One 150㎥/min

Grilled chicken deodorization

Kakogawa City,Hyogo

Ura Industry（nikko）

Styrene gas deodorization system

Styrene exhaust gas concentration reduction

Fukuoka City,Fukuoka

Yakinikuya SAKAI Nagoya kaneyama store

Deodorization system Neo-One 400㎥/min

Grilled beef deodorization

Nagoya City,Aichi

SOTOH

Specialized deodorization system 200㎥/min

Thermal textile treatment deodorization

Aichi

Kansai Recycling Network

Deodorization system DR-9

Household garbage deodorization

Sakai City,Osaka

Yakitori Toriyoshi（factory）

Subterranean deodorization system200㎥/min

Grilled chicken deodorization

Osaka City,Osaka

Tsukuda Industry corporation.

Deodorization system DR-9

Paint drying oven

Hiroshima

WATANABE INDUSTRY Co.,Ltd

Deodorization system DR-16

Industrial and agricultural equipment paint drying oven

Nagahama City,Shiga

Delica Wing hiroshima factory

Deodorization system DR-16

Grilled beef box lunch production line deodorization

Hatsukaichi City,Hiroshimakyoeisha Chemical Co.,Ltd.

Deodorization system DR-2S(made of SUS)

Drug reaction tank cleansing waste liquid deodorization

NaraSunright

Deodorization system Neo-One 75㎥/min

Cocoa bean roasting smoke deodorization and particulate collection

Shizuoka

TAKIRON CO.,LTD. Aboshi factory

Deodorization system DR-1(made of SUS)

Chemical reaction deodorization

Himeji City,Hyogo

Yokota shop

Deodorization system Neo-One 50㎥/min

Charcoal-grilled eel deodorization and particulate collection

Nagoya City

Daiei service

Bioshower deodorization system

Waste liquid trans-shipment and storage facility deodorization

Nishinomiya City,Hyogo

Appliance Store some corporation

Deodorization system DR-30W(made of FRP)

Organic solvent exhaust gas deodorization system

Miyazaki

MITSUBISHI FUSO TRUCK AND BUS CORPORATION

Deodorization system DR-9W(made of SUS)Electrodeposition coating drying oven exhaust gas treatment

Kawasaki City,Kanagawa

Juridical Agricultural Union enuchikin

Deodorization system DR-30W(made of FRP)

Chicken preparation exhaust gas treatment

Kagoshima

KOBAYASHI PERFUMERY CO.,LTD.

DR-1W deodorization system (made of SUS) / deodorizing agent

Fragrance manufacturing exhaust gas treatment

Ichikawa City,Chiba

DAISO matsuyama factory

Deodorization system DR-1W(made of SUS)

Used as a test device

Matsuyama City,Ehime

Osaka DENSO industry

Deodorization system DR-2S(made of SUS)

Drying oven exhaust gas deodorization system

Higashiyodogawa-ku,Osaka City

Nishifuse District Processing plant

Deodorization system DR-1W(made of SUS)

Sludge compost system exhaust treatment

Uozu City,Toyama

YAMAHA KUMAMOTO PRODUCTS

Deodorization system DR-9S(made of SUS)

Odor countermeasures for foundry

Yashiro City,Kumamoto

Tire manufacturing plant some corporation

Deodorization system SD-6W(made of SUS)

Exhaust gas deodorization system for rubber processing

Yamaguchi

Dai Nippon Printing Co.,Ltd.

Four DR-30W deodorization system units (made of SUS)

Organic solvent exhaust gas deodorization system

Osaka

Bridgestone Flowtech

Four Deodorization system DR-4W

Rubber product processing odors

Kasai City,Hyogo

Sumitomo Chemical Company, Limited

Two DR-30W deodorization system units (made of SUS)

Organic solvent exhaust gas deodorization system

Konohana-ku,Osaka City

Kobe Bankin Kogyo

Deodorization system DR-6W(made of SUS)

Paint drying oven exhaust gas deodorization system

Takasago City,Hyogo

Yoshitori

Deodorization system Neo-One 25㎥/min

Charcoal-grilled chicken exhaust odor treatment

Osaka City,Osaka

Kitawa District Processing plant

Deodorization system DR-2W(made of PVC)

Sludge compost system exhaust treatment

Ibi County,Gifu

SHIBATA INDUSTRIAL CO.,LTD.

Deodorization system SD-6

Rubber vulcanization process exhaust gas treatment

Akashi City,Hyogo

Tokuseki・nagase district processing plant

Deodorization system DR-2W(made of PVC)

Sludge compost system exhaust treatment

Ibi County,Gifu

Yamazyou

Deoblaster DB-480 deodorization system

Compost system exhaust treatment

Konan City,Shiga

Kinugawa nukigatasyo

Deodorization system Neo-One 25㎥/min

Lumber processing exhaust gas treatment

Kyoto City,Kyoto

MITSUBISHI FUSO TRUCK AND BUS CORPORATION（repeat）

Three separate DR-30W deodorization system units

Paint drying oven exhaust gas reduction

Kawasaki City,Kanagawa

Kureha Elastomer Co., Ltd.

One Deodorization system ＳＤ-6

Rubber product manufacturing and processing exhaust gas treatment

Kameyama City,MieNakayama industry

Deoblaster DB-380 deodorization system

Teﬂon drying exhaust gas treatment

Komaki City,Aichi

MITSUBISHI Electric Power Devices factory

Three separate DR-30W deodorization system units

Organic solvent exhaust gas reduction

Kawasaki City,Kanagawa