Wastewater treatment system improvements
and new system installation examples□Aquablaster installation examples

Aience Co., Ltd.

■ Aquablaster installation examples

Hotel kitchen wastewater treatment ●Photograph shows untreated and treated water from a luxury hotel kitchen.

*The treated water in the photo is not a supernatant (the top clear layer of liquid above solid residue after precipitation, etc.). It is water extracted during aeration stirring. A key characteristic of Aquablaster is that it even treats suspended solids. Please feel free to tour a facility in operation. (*No activated sludge used)

Untreatedwater

B O D ： 800mg/ℓ
S
S ： 600mg/ℓ
N - h e x ： 150mg/ℓ

B O D ：１２0mg/ℓ or lessS
S ： ８0mg/ℓ or lessN - h e x ： 10mg/ℓ or less

Treatedwater

Aquablaster's water treatment mechanism
Flow chart with pressurizedflotation device installed
Coagulanttank

At this site, unpleasanto d o r s w e re e l i m i n a t e dwith no need for a pressurized floatation device.

Coagulant Coagulation
aid tanktankDehydrating device
Sludge hopper

Measuring
Reactor Equalizing Coagulation
tank
tank
tank

Industrial waste
Pressurizedflotation tankPressurizing
unit

Scum
Sludge receiving tankdischarge pump

BlowerInflow

Discharge

Flow rateadjusting tankCompact systemachieved with introduction of Aquablaster!

First
treatment tank

Secondtreatment tankThirdtreatment tank

Supply ofdegrading bacteria

Fourthtreatment tankBlowerInflow

Discharge

Flow rateadjusting tankFirst
treatment tank

Secondtreatment tankThirdtreatment tank

Fourthtreatment tank

■ Aquablaster installation examples

Baked goods factory wastewater treatment
ProblemTreatment of high-load wastewater from a baked goods factory wassometimes unsuccessful.

Challenges
Wastewater treated so that it falls within acceptable sewer discharge limit.

Solutions
The existing 60-ton treated water tank was divided into two 30-ton
adjustment tanks, and a 30-ton unit tank was added.

EﬀectsTreatment achieved the target of falling within the acceptable sewer
discharge limit, and the unpleasant odors that had previously been
generated were completely eliminated.

● Wastewater type ： Baked goods wastewater： 30㎥／day● Volume： Aquablaster + Unit tank
● ModelAL-750 + AS-250

Treatment results (Unit: mg/ℓ)

B O D ：３,000 → ３00 or lessS
S ：４,000 → 500 or lessN - h e x ： 400 → 30 or less

Plastic recycling plant wastewater treatment
Problem
A plastic crushing and recycling plant established by a major manufacturer was generating high-load wastewater with BOD over 3000mg/L,
and wastewater quality problems occurred at various sites the company
delivered to, prompting guidance from the authorities.

Challenges
Wastewater was treated so as to fall within all relevant municipal river orsewer discharge limits.

Solutions
Two UT-15B unit tanks and a coagulator were used to treat wastewater
so that it fell within local river discharge limits.

EﬀectsWith the advancement of treatment, the target of falling within riverdischarge limits was met. With the coagulation settling method, ﬁve
tons of sludge a day was generated, but this ﬁgure was reduced to
75kg a day with this system.
⇒ Afterward, the system was adopted at 12 plastic recycling plants.

● Wastewater type ： Wastewater from plastic recycling
processes
Volume： 6〜10㎥／day●： Unit tank + AL-750
Model●electrocoagulation ﬂotation system

Treatment results (Unit: mg/ℓ)

B O D ： 3,000 → 100 or lessC O D ： 2,000 → 100 or lessS
S ： 800 → 30 or lessN - h e x ： 100 →5 or less■ Aquablaster installation examples

Boxed lunch plant wastewater treatment
ProblemTreatment was carried out with a pressurized ﬂotation system, but it
proved ineﬀective and resulted in payment of ﬁnes to the municipality as
well as trouble with foul odors and sludge and complaints from neighbors.

Challenges
The customer wanted to reduce ﬁne payments and eliminate putrid odors.

Solutions
Seven 40-ton precast concrete tanks were buried and treatment carriedout with Aquablaster.

Eﬀects
The treatment successfully achieved the goal of bringing wastewater
within the sewer discharge limit. The problem of unpleasant odor generation was solved as well.

● Wastewater type ： Boxed lunch plant wastewater： 220㎥／day● Volume： Aquablaster system AL-750● ModelTreatment results (Unit: mg/ℓ)

B O D ： 2,500 → 400 or lessS
S ： 1,000 → 400 or lessN - h e x ： 350 → 40 or less

Food waste recycling plant wastewater treatment
ProblemCarbonization reduction of food-related industrial waste generates
distilled water, and while this appears transparent, it has a BOD of 500
or greater and pH of 2 or less. For this reason the customer wanted totreat it and use it as coolant water for machines.

Challenges
After treating the water and making the pH neutral, it can be use forcooling of machines without having a negative impact on the machines.

Solutions
After installing tanks with a total capacity of 100 tons and adjusting thepH, the water was treated with Aquablaster.

EﬀectsDespite inﬂux of wastewater with higher concentrations than the plancalled for, treatment continues smoothly with no problems.

● Wastewater type ： Food waste recycling plant wastewater： 30㎥／day● Volume： Aquablaster system● ModelAL-750＋ AS-250

Treatment results (Unit: mg/ℓ)

B O D ： 800 → 200 or lessS
S ： 200 → 50 or less5 or lessN - h e x ： 10 →

■ Aquablaster installation examples

Wastewater treatment at a food processing plant
ProblemRough wastewater treatment was carried out using a pressurized ﬂotation device and microorganism carrier agents, but the quality ofdischarged water was not consistent, and treatment costs were veryhigh.

Challenges
Treatment was stabilized and simpliﬁed, and treatment costs werereduced.

Solutions
There was an existing wastewater treatment pit with a capacity of
approximately 500 tons. Half of the water tank was used to install Aquablaster, and modiﬁcations were made so wastewater was discharged tothe sewage system. The remainder of the tank was ﬁlled in.

EﬀectsTreatment proceeded smoothly, and aeration time during operation was
reduced to around 16 hours, cutting electricity costs as well.

● Wastewater type ：Food processing wastewater：200㎥／day● Volume： Aquablaster system AL-750● ModelTreatment results (Unit: mg/ℓ)

B O D ： 1,000 → 200 or lessS
S ： 800 → 200 or lessN - h e x ： 100 → 30 or less

At a new plant, wewere involved inwastewater
treatment fromthe design stage.

Repeat orders
Previously, Aience had remodeled an existing treatment facility with highly
successful results, receiving positive feedback such as We never knew
such miraculous wastewater treatment existed! When the new plant wasplanned, wastewater treatment was left up to us from the design stage. At
this facility, the three blowers do not operate at the same time, they cantreat wastewater by operating one by one for eight consecutive hours
apiece, and the client is pleased with the energy savings.
Flow of
water

Wedge
Wedge wire-typewire-typeSS
SS screen
screenBioreactor
Bioreactor

First
First
treatment
treatment tanktank

SewageSewagedischarge
discharge

SecondSecondtreatment
treatment tank
tank
Flow
Flow equalizing
equalizing tanktank

FourthFourthtreatment
treatment
Third
Third
tank
tank
treatment
treatment tanktank

Aquablaster AL-750［アクアブラスター］●水処理概念を変える散気管Aquablaster AS-250［アクアブラスター］●水処理概念を変える散気管■ Aquablaster installation examples

Employee dining hall and mineral oil wastewater treatment Shimadzu Corporation Seta Works
Problem
The company had relied on coagulation treatment of kitchen wastewaterfrom the employee cafeteria, but treatment problems occurred anddischarged waste levels exceeded their in-house targets.

Challenges
The company is rigorously committed to compliance, and in addition totreating kitchen wastewater impeccably, there was a need to treat
waste liquid from washing of machine parts, which had thus far been
disposed of as industrial waste.

Solutions
Two UT-10B unit tanks of 10m3 apiece and a 3-ton waste liquid unit
tank were installed, and treatment carried out.

EﬀectsWaste liquids that had initially been a source of concern were treatedwith no problems, and we succeeded in getting below the in-housedischarge target values consistently. In the ﬁnal unit tank, water was
puriﬁed to the degree that small, environmentally sensitive snails of thesort found in rice paddies appeared.

● Wastewater type ： Employee dining hall wastewater+ Plant astewater● Volume： 8㎥／day＋ 0.1㎥／day● Model： Aquablaster system AL-750

Treatment results (Unit: mg/ℓ)

B O D ： 800 → 240 or lessS
S ： 600 → 240 or lessN - h e x ： 150 → 24 or less (plant and animal)
4 or less (mineral)N - h e x ：12,000 →Based on theseresults at the Seta
Works, the same
system wasinstalled at theemployee dining hall.
Problem
When constructing a new plant, the company also built a new employee
dining hall, and wanted to treat the wastewater it generated properly andguarantee corporate compliance.

Challenges
They wanted to construct a treatment facility at low cost by repurposing
an old ﬁre-prevention water tank as a wastewater treatment pit.

SolutionsAquablaster AS-250 was installed in the old ﬁre-prevention tank, and ablower was also installed underground. An expansive wood deck wasbuilt atop the tank as a place for employees to relax.

Eﬀects
The company had independently established voluntary standard values
for discharge, not to exceed 80% of the standard sewage discharge
value, and this target was consistently achieved.

● Wastewater type ： Employee dining hall wastewater： 45㎥／day● Volume： Aquablaster system AS-250● ModelTreatment results (Unit: mg/ℓ)

B O D ： 800 → 240 or lessS
S ： 600 → 240 or lessN - h e x ： 150 → 24 or less

■ Aquablaster installation examples

Chemical plant wastewater treatment
ProblemWith high COD, this wastewater was diﬃcult to treat biologically andphenol treatment was not fully eﬀective. Also, sludge in the sedimenttank did not settle completely and caused trouble.

Challenges
Boosting the COD cut rate and assisting the settling of sludge in thesediment tank.

SolutionsThirty Aquablaster AL-750 units were installed in a 240-ton water tank,and eight units were installed in the sediment tank on top of a sludge
eater to force sludge to settle.

EﬀectsTreatment of phenol proceeded more smoothly than predicted, and levels
fell well below acceptable limits. In the sediment tank the sludge settled
and there was no need to operate the sludge eater. Aerobic treatment
with Aquablaster proceeded smoothly, and it is thought that gases suchas hydrogen sulﬁde stopped attaching to the sludge.

● Wastewater type ： Chemical plant wastewater： 600㎥／day● Volume： Aquablaster system AL-750● ModelTreatment results (Unit: mg/ℓ)

Phenol ： 20 → 1.0 or less

Construction equipment manufacturing plant waste liquid treatment
Problem
The customer wanted to treat waste oil and painting-related waste
liquids generated at the plant on site and cut emissions to zero, rather
than shipping them out as industrial waste.

Challenges
Coagulation treatment alone was not suﬃcient, and it was necessary to
perform further treatment so as to be able to release the liquids tosewers.

Solutions
Seven Aquablaster AL-750 units were installed in an unused 60-tontank, and treatment carried out over three days.

Eﬀects
The treatment easily succeeded in bringing the waste oil and liquid
below acceptable sewer discharge limits. At ﬁrst there was a surprising
amount of foam generated by the large amount of surfactant in thewastewater, but this problem was brought under control with the addition of small amounts of silicone defoaming agent.

● Wastewater type ： Waste liquid from plant(after coagulation)： 20㎥／day● Volume： Aquablaster system AL-750● ModelTreatment results (Unit: mg/ℓ)

B O D ： 1,000 → 300 or lessS
S ： 1,000 → 300 or lessN - h e x ： 100 → 30 or less

■ Aquablaster installation examples

Treatment of wastewater from bus storage yard containing mineral oils (N Co.)
Problem
Wastewater from washing and maintenance of buses, containing mineraloils, was treated with a pressurized ﬂotation system and other treatment
equipment, but there were problems with sludge generation as well as
high costs.

Challenges
The customer wanted to bring wastewater within acceptable sewer
discharge limits using only Aquablaster and bio-injection only, without
using a pressurized ﬂotation system.

SolutionsTwenty Aquablaster AS-250 units were installed in an existing 40-ton
water tank and bio-injection performed.

Eﬀects
The treatment succeeded in bringing the wastewater below acceptablesewer discharge limits as hoped. The problem of unpleasant odor generation was solved as well. Aerobic treatment with Aquablaster proceededsmoothly, and it is thought that gases such as hydrogen sulﬁde ceased
to be generated.

● Wastewater type ： Bus storage yard wastewater： 40㎥／day● Volume： Aquablaster system AS-250● ModelTreatment results (Unit: mg/ℓ)

Mineral oil N-hex ： 30→5 or less

Treatment of wastewater from bus storage yard containing mineral oils (H Co.)

Problem
Wastewater from washing and maintenance of buses, mixed with mineraloils, was treated with sand ﬁltration and other treatment equipment, butthere were problems with sludge generation as well as high costs.

Challenges
The customer wanted to bring wastewater within acceptable sewer
discharge limits using only Aquablaster and bio-injection only, without
using the mechanical systems employed thus far.

Solutions
Sixteen Aquablaster AL-750 units were installed in two existing 70-ton
water tanks and bio-injection performed.

Eﬀects
The treatment succeeded in bringing the wastewater below acceptablesewer discharge limits as hoped. The problem of unpleasant odor generation was solved as well.

● Wastewater type ： Bus storage yard wastewater： 40㎥／day● Volume： Aquablaster system AL-750● ModelTreatment results (Unit: mg/ℓ)

Mineral oil N-hex ： 30→5 or less

■ Aquablaster installation examples

Puriﬁcation of circulating water for water-based painting at transport plane plant

Problem
The quality of circulating water, used in the water-based painting
process by a transport plane manufacturer, deteriorated drastically, andthe putrid odor of acetic acid pervaded the plant interior.

Challenges
The customer wanted to eliminate the putrid odor and improve the work
environment, as well as prolonging the service life of circulating waterand reducing costs.

Solutions
Coagulation settling equipment and a belt press dryer were installed in
two UT-30 unit tanks.

Eﬀects● Wastewater type ： Circulating water
for water-based painting
Volume： 10〜30㎥／day●： Aquablaster + Coagulation system● ModelThe rotting odor was completely eliminated and the service life of circulating water lengthened. The belt press also had a strong deodorizing
eﬀect, hard sludge with minimal content was produced and costs werecurtailed as well.

Puriﬁcation of circulating water for melamine-based painting at transport plane plant
ProblemDuring construction of a new construction equipment plant, the customer wanted to adopt the Aquablaster system that had proven eﬀective at
a contractor s plant, and resolve existing issues with refuse ponds.

Challenges
The customer wanted to save ¥4 million or more per year by eliminating
the putrid odor and prolonging the service life of circulating water.

Solutions
Refuse ponds totaling 30 tons were constructed with three 10-ton
tanks, and 12 Aquablaster AL-750 units were installed.

Eﬀects● Wastewater type ： Circulating water● Volume● Modelfor melamine-based painting：３0㎥／day： Aquablaster system AL-750

At existing plants, water tanks had been cleaned once a month, but
after the system was installed at the new plant, it was 14 months until
the water tanks had to be cleaned. This succeeded in cutting costs byover ¥4 million annually.

■ Aquablaster installation examples

Integrated wastewater treatment facility at industrial park Aeration tank

ProblemHydrogen sulﬁde was generated, and treatment problems occurred.

Challenges
The aim was to eliminate hydrogen sulﬁde, thereby reducing sludge andincreasing treatment eﬃciency.

SolutionsAquablaster AL-750 (94 units) were installed in a 1500㎥water tank andaeration was carried out.

Eﬀects● Wastewater type ： Integrated wastewaterat industrial park
time in 1500 m3
Volume： 6000㎥／day Storage●
adjustment tank: six hours： Aquablaster AL-750● ModelNot only was hydrogen sulﬁde eliminated, BOD was reduced by 89% andnormal hexane extracts reduced by 66% in pre-treatment simply bystoring liquid in the adjustment tank for six hours, drastically decreasing
the latter-stage load and improving SV.

Wastewater treatment at food additive plant
Problem
The plant had not installed wastewater treatment equipment thus far
because it was not a designated facility, but as there had been complaints from neighboring residents due to the putrid smell of wastewater,
they inquired with Aience about addressing the issue as inexpensively
as possible.

Challenges
Putrid smell was eliminated with a low-cost wastewater treatment
system.

Solutions
A blaster tank of the type conventionally buried underground was
installed aboveground, cutting the initial cost of the wastewater treatment system.

● Wastewater type ： Food system drainage： 15㎥/day● Volume● Model： Blaster tank BT-15 buried type(aboveground installation)

EﬀectsAfter installation, the foul odor completely disappeared and complaints
from neighbors ceased. Aience received a message of gratitude from theplant manager in charge.

■ Aquablaster installation examples■ Treatment equipment installation examples
Major customers

Model

Purpose / Application

Yongin City Korea Wastewater treatment plant

Sewage treatment

Improvement of treatment eﬃciency and curtailing of power consumption

Hotel Okura kobe

Kitchen wastewater treatment systems

Puriﬁcation of wastewater to within acceptable sewer discharge limits

HANKYU TAKARAZUKA HOTEL

Kitchen wastewater treatment system modiﬁcation

Puriﬁcation of wastewater to within acceptable river discharge limits

Yoshikawama town Feeding center

Kitchen wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

KYOKUTO KAIHATSU KOGYO CO.,LTD Miki factory.

Treatment systems for wastewater containing mineral oils

Puriﬁcation of wastewater to within acceptable river discharge limits

Kawasaki syokuhin Industry

Food processing wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Yashiro town Feeding center

Kitchen wastewater treatment systems

Reduction of styrene gas emissions concentration

SHIMADZU CORPORATION Seta factory

Kitchen wastewater & workpiece washing wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Kyoto sando

Food processing wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Mihara town Feeding center

Kitchen wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Wastec shinnichisyo（nikko）

Plastic recycling wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

SUMIHEI kosan Nagano

Plastic recycling wastewater treatment systems

Cyclical use

Kanesu Sugisawa Oﬃce

Plastic recycling wastewater treatment systems

Improvement of wastewater treatment systems

Wastec Itakura factory（nikko）

Plastic recycling wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Odajimakensetsu（nikko）

Plastic recycling wastewater treatment systems

Puriﬁcation of wastewater to within acceptable river discharge limits

Miyake-namakon CORPORATION

Plastic recycling wastewater treatment systems

Puriﬁcation of wastewater to within acceptable sewer discharge limits

Wastec Kakizaki factory

Plastic recycling wastewater treatment systems

Odor reduction / Improvement of water purity (N-Hex5mg/L or less)

SHIMIZU Kouki

Plastic recycling wastewater treatment systems

Odor reduction / Improvement of water purity (N-Hex5mg/L or less)Kansai Recycling Network

Food recycling wastewater treatment systems

Modiﬁcation of food plant wastewater treatment system

TOYOTA MOTOR CORPORATION Higashi fuzi laboratory

Aquablaster AS-250

Modiﬁcation work on existing wastewater treatment systems (aeration tank)

Nishinihon Kosan

Plastic recycling wastewater treatment systems

Frozen food and baked goods plant wastewater treatment

SHIMIZU Kouki（repeat）

Plastic recycling wastewater treatment systems

Modiﬁcation work on integrated wastewater treatment systems

Kitanihon Tsuusyo

Plastic recycling wastewater treatment systems

Modiﬁcation work on integrated wastewater treatment systems

SHIMADZU CORPORATION Head oﬃce

Employees dining hall kitchen wastewater

Installation of new wastewater treatment system

Hankyu Hanshin Motor Technology Co., Ltd

Plant wastewater and bus washing wastewater puriﬁcation

Puriﬁcation of wastewater to within acceptable sewer discharge limits

Nankai Vehicles Service Engineering Co., Ltd

Plant wastewater and bus washing wastewater puriﬁcation

Puriﬁcation of wastewater to within acceptable sewer discharge limits

KAWAHARA FOOD CO., LTD

Wastewater treatment modiﬁcation work

Dissolution and removal of mineral oils

Caterpillar Japan Ltd.

Plant wastewater puriﬁcation

Puriﬁcation of wastewater to within acceptable sewer discharge limits

YAMAZAKI BAKING CO.,LTD. Kobe Cold dough oﬃce

Food processing wastewater treatment systems

Puriﬁcation of wastewater to within acceptable sewer discharge limits

NISSAN Technical Center

Kitchen wastewater treatment systems

Puriﬁcation of wastewater to within acceptable sewer discharge limits

UENO FINE CHEMICALS INDUSTRY.LTD．

Treatment of wastewater containing phenol

Puriﬁcation of wastewater to within acceptable river discharge limits

COOP FOODS

Wastewater from prepared food manufacture

Puriﬁcation of wastewater to within acceptable sewer discharge limits

COOP FOODS (repeat)

Wastewater from prepared food manufacture

Puriﬁcation of wastewater to within acceptable sewer discharge limits

KONAN UTILITY CO.,LTD.

Integrated wastewater treatment at industrial park

Puriﬁcation of wastewater to within acceptable river discharge limits

Kirishima Shuzo Co., Ltd.

Sludge storage tank stirring

Puriﬁcation of wastewater to within acceptable river discharge limits*All the above examples are treatment systems installed at plants. Examples of Aquablaster sold as a separate unit are not included.