E

Environment
We are positively engaged in technological development that contributes to environmental preservation and reducing environmental
burdens, while promoting the active use of natural energy sources and the development and introduction of energy-saving and energycreation technologies.

Contributing to water and environmental infrastructure
through business

Treatment processes and technology for water and sewage treatment plants
Ozone technology

Water treatment plants
Water

The environment surrounding water changes daily, and challenges vary by

Water treatment technology

country and region. In recent years, environmental destruction caused by

Water intake
facilityplastic waste has also become a major problem.
Beginning from the era of our founding companies NGK Insulators, Ltd. andReceivingtank

Chemicalmixing tank

Sedimentation
tank

Adjust waterMix in flocculant
level and volume

Sink and separate
lump sand and soilStore purified
waterStore water tosend to homes

Advanced wastewater
treatment equipment

Filtration
tank

Disinfection
systemFiltrate
tank

Water
distribution tankReuse as horticulturalsoil and cement

Dehydrator

SludgeReduce moisture indischarge sludge discharge

Supplywater
To town

Squeeze out
more moistureRiver

Development facility

Water treatment technology

accelerating, including global warming, climate change, and frequent wind and flood damage.
Discharge

In continuing to make sincere efforts to tackle these issues, according to our research we currently supply equipment to 37% of water

Sterilize and disinfectwith chlorine, etc.

Sink clumps of
microorganisms

Decompose dirt throughthe work of microorganisms

Sink minutewaste

Sink andremove sand and waste

Disinfection
tank

Final
sedimentation tank

AerationtankPrimary
sedimentation tankGritchambertreatment plants and 43% of sewage treatment plants domestically.
development required by the times.

Disposalandeffective use

Thermal manipulation
technology

Sludgedehydration technology

Facilities for productionof fuel from sludge

Sludgedehydrator

Sludgethickener

Incinerate

Further compact
the moisture
into a semi-solid state

Reduce moisturein sludge

Wastewater(filtration)

Waste recycling
facilities

SludgeAs a company supporting water and environmental infrastructure, the METAWATER Group will continue to focus on the technological

To sewage treatment
plant through sewer pipes

Sewagetreatment plants

Resource
environment technology

METAWATER’S ESG

Since then, changes in the natural environment have been intensifying andSterilize

Maintenance and operations management for water and sewage facilities

and environmental infrastructure.
We were established in 2008, adopting the genes of both those companies.

Filter andclean water

Thickening
systemFuji Electric Co., Ltd., the METAWATER Group has been engaged in various
technological development for over 50 years as a company supporting water

Catch colors and smells

Separation and recycling of plastics,
incombustible materials, etc.

Changes in the development of new technology (2007 to present)
METAWATER established2007

Technology
Water
treatment plants(Year)

2008

2009

2010

2011

Development of new technology through electromechanical fusion
Japan's first PFI
Kawai Purification Plant

Water purification technology

2012

2013

2014

2015

Development of new technologies for reuse and recycling of resources, as well as higher functionality
First delivery of
UV disinfection equipment

2016

2017

2018

2019

Development of technologies to respond to climate change and the environment

First delivery of mobile Ceramic
Membrane Filtration Equipment

First delivery of LED UV
disinfection equipment(water supply field)

Ozone technology

Began verification of
sewage reuse system

Developed glass lining typeozone generation tubes

Developed high air-concentration both side cooling ozone generation tubes
First delivery of new diffuser plate for ozone

Water treatment technology

First delivery of high-speed sewage
treatment systems for wet weather

First delivery of multi-wing vertical-axis agitator
First delivery of sewage water reuse system

Pre-treated Trickling Filtration (PTF)
High-speed filtration technology using floating media
Simultaneous nitrification and denitrification treatment (deep tank type)

Sludge dehydration technology
Sewagetreatment plants(sewage field)

Phosphorus recovery fromincinerator ash (2006)

Thermal manipulation technology
B-DASH Project*(Breakthrough by Dynamic. Approachin Sewage High Technology projectby Ministry of Land, Infrastructure,
Transport and Tourism)

Waste recycling
facilities

Resource environment technology

Developed post-injection dual-liquid typebelt press dehydrator
First delivery of multi-layer fluidized incinerator
Delivery of world's first gasification furnace[FY2011] Energy management system using intensive
solid-liquid separation technology

Joint research into circulation-type multi-layer incineration
First delivery of kiln type carbonizing furnaceFirst delivery of dual heat source binary generator[FY2013] Innovative wastewater sludge energy conversion system that
optimizes overall dehydration, combustion, and power generation[FY2019] Advanced treatment technology through ICT and AI
control of single tank nitrification and denitrification process[FY2014] Non-aeration circulationwater treatment technology[FY2017] Technology increasing the processing capacityof final sedimentation tanks[FY2015] Water management technologies for urban areas subjected to local downpoursFirst delivery of waste plastic
specific gravity difference sorter

Development of compact high-speed rotary vertical crusher
First delivery of new counter-current trommel sorter

First delivery of improved
counter-current trommel sorter*B-DASH Project Abbreviation of Breakthrough by Dynamic Approach in Sewage High Technology Project. By accelerating research, development and commercialization of new technologies, efficiency of energy use and reduction of life cycle costs in the wastewater business are promoted. It is a demonstration project that has been implemented by MLIT since FY2011 to support overseas development of the water business. Consignees installed a full-scale plant in their sewage
treatment plants and demonstrated cost reductions, reductions in greenhouse gas emissions, etc.

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E

Environment

Main environmental technology
Water purification technology

Safe water purification system effective even in the face of climate change

Water treatment technology

Water treatment systems that reduce river and sea pollution in wet weather

High speed CSO filtration system

Our Ceramic Membrane Filtration System boasts the No. 1 market share in Japan forwater treatment plants utilizing membrane filtration systems. The risk of membrane
breakage is extremely low, it can be installed in small spaces, and it can also remove
protozoa, allowing for safe filtered water.
Thanks to its exceptionally long life, there is a minimal frequency of membrane
replacement. In fact, the first unit of this system was delivered over 20 years ago,
and it continues to operate to this day without having had the ceramic membrane
replaced yet. Additionally, it is expected to be used as ceramic materials after use,
leading to a significant reduction in waste.
Finally, only a low amount of pressure is required to filter raw water, and filtration
using differences in water level is possible as well, reducing the power needed bypumps, etc., and saving energy.

Combined sewer overflows have a negative impact on water quality andpublic sanitation at the discharge destination, as simple treated waterand untreated sewage are both directly discharged into public water
areas, such as rivers, during periods of rainfall. As such, with the 2004
amendment of the Sewerage Act enforcement order, measures to improvecombined overflows are being promoted throughout the country. This
includes the start of the "combined sewer system urgent improvement
project", which has the aims of (1) reducing pollutant loads, (2) ensuring
public health and safety, and (3) reducing refuse.
This system filters simply treated water and untreated sewage at highspeeds using our uniquely developed special filter medium, which is only
about 7.5 mm, filtering out refuse and pollutants such as oil balls andplastics at a rate of up to 1,000 m/day.
Additionally, existing primary sedimentation tanks can be remodeled
and set. Since it is easy to operate and maintain, it has been adopted as
one measure for improving combined overflow in Japan, contributing toenvironmental conservation measures regarding public water areas.

■ <Delivery results> Volume of water processed (cumulative)■ Japan(m3/day)

1,200,000■ Overseas

1,000,000

Special filter medium■ <Delivery results> Design treated water volume (cumulative)(m3/day)

5,000,000
4,000,000
3,000,000

METAWATER’S ESG

Ceramic Membrane Filtration System

2,000,000
1,000,000

800,0000
600,000

2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018(Year)

400,000
200,000
0

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

Water treatment technology

2018(Year)

Ceramic membrane

A mobile water treatment plant that is also active in times of disaster
Mobile Ceramic Membrane Filtration Equipment
This simplified Ceramic Membrane Filtration System, mounted on a truck,is easy to operate and maintain. Since it is mobile, it can be operated evenin areas where there are no skilled engineers. In areas that do not yet havewater piping laid, the truck can be moved to various water sources, such as
lakes, rivers, and wells, allowing that water to be processed and used as safe
drinking water.
Water transferred using piping requires a lot of energy, but since this system can moveon its own, it contributes to a reduction in transportation energy.
The system can also be used in the event of a disaster suchas an earthquake or heavy rain, thanks to the features of the ceramic
membrane that enables stable filtration of even high turbidity raw water.

System with the No. 1 market share, featuring significantly reduced power consumption

High integration configuration air diffusion system
The sewer system collecting and treating domestic wastewater uses
0.7% of Japan's total electricity consumption (equivalent to the annual
electricity consumption of 2.11 million households). Of that, approx.
50% of the electricity is used for sewage treatment in treatment plants.
When sewage is being treated, microorganisms decompose pollutantsin the sewage, sinking together with the fine impurities which are thenremoved. However, large amounts of air must be blown (diffused) into thesewage to activate the microorganisms.
METAWATER has developed a system that allows ultra-fine air to be
diffused through the use of ceramics technology, enabling high oxygen
transfer efficiency. Additionally, by reducing pressure loss when air isblown in, the power consumption required to operate can also be reduced
by approx. 30% compared to the conventional system.
The system is maintenance-free and has long-lasting performance,
earning it the No. 1 market share in Japan.

■ <Delivery results> Target water volume (cumulative)(m3/day)

4,000,000
3,500,000
3,000,000
2,500,000
2,000,000
1,500,000

Mobile Ceramic Membrane Filtration
Equipment

1,000,000
500,000
02008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018(Year)

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Environment
Main environmental technology

Thermal manipulation technology

Activities for reducing environmental burdens

Thermal manipulation technology that converts waste into fuelPromoting energy-saving measures

Wastewater sludge fuel system■ Power usage (office)

The METAWATER Group has set a "goal of a 1% reduction compared■ Power usage ● CO2 conversion

to the previous year" with regard to office power consumption andis actively implementing office lighting reduction activities.

4,000(t CO2)

3,834

3,777

Various initiatives are being explored to reduce the amount ofmonitors are turned off when employees step away from their desk(energy-saving and security measures), and in addition to work-

Wastewatersludge fuelstyle reforms (introduction of a 4-day workweek, telecommuting,

2,223
2,100

2,113
1,866

2,000

1,900

1,700

As a result, our electricity usage in FY2018 decreased by 1.7%0compared to the previous year, and CO2 emissions were also

2014

2015

2016

2017

1,500
2018 (Year)

reduced by 0.9%.

800

Promoting paperless work environment and purchasing eco-friendly items

600

METAWATER’S ESG

1,000

3,582

1,000

asked to leave at a specific time and all the lights are turned off.
(t /day)

2,187

2,300

3,644

1,834

etc.), there are also "Super Refresh Days", where employees are■ <Delivery results> Treated capacity (cumulative)

3,000

3,787

CO2 conversion

electricity used. Lights are turned off during the lunch break, PC

Power usage

As a general rule, sewage sludge in urban areas is dehydrated to reduce
the amount of moisture present and then incinerated. The ash generated
from the incineration is effectively used as a raw material for cement, etc.
METAWATER's "wastewater sludge fuel system" is a technology that
produces fuel (carbon) by steaming and incinerating sewage sludge. The
fuel produced is valuable and can be sold, and is effectively used as analternative fuel source to coal in thermal power plants, etc.
There are high expectations for wastewater sludge fuel to be a neweffective use of sewage sludge.

(1,000 kWh)

400

The METAWATER Group has abolished the paper-based distribution of meeting materials at executive meetings since FY2013, introducing
2000methods for viewing materials on tablets. This meeting format has already been introduced at other general meetings, as we continue
2008

2010

2012

2014

2016

our work to achieve a paperless work environment throughout the company. At the same time, we are also working on purchasing eco-

2018
(Year)

Resource environment technology

Initiatives regarding industrial waste

Improved plastic sorting efficiency and accuracy

Domestic waste recycling system(office and domestic construction work) varies depending on the■ <Delivery results> Treated capacity (cumulative)■ Scrap glass, etc.

■ Wood scrap■ Other

28,51825,000were 2.4-times that of the previous year. The amount of metal andbeen continuously implementing departmental education with the■ Mixed waste, etc.

■ Waste plastics

30,000water treatment facility improvement work, etc., and emissions
wood scrap increased as well. Under such circumstances, we have

■ Sludge(t) ■ Metal scrap

In FY2018, rubble increased significantly due to an increase in

20,00015,000aim of promoting proper processing and reuse by strengthening

10,000management of industrial waste processing, and in doing so have

5,000

18,314
14,45915,707
11,797

achieved a rate of nearly 100% for recycling of such waste.
0

2014

2015

2016

2017

2018 (Year)(t/5H)

500

Promoting the adoption of electronic manifests

400
300

We are continually strengthening our monitoring efforts through improving operation efficiency, visualizing the processing status,
200

selecting service providers that support electronic manifests, and adopting an advance application process for using a paper-based
manifest. However, due to factors such as the need to use paper-based manifests in local situations, etc., the adoption rate in FY2018100

was only 98.3%, a 1.2% decrease compared to the previous year (the rate nationwide in FY2018 was 58%). Moving forward, we will
2008

2010

2012

2014

2016

2018
(Year)METAWATER REPORT 2019

■ Rubbletype and amount of construction work each year.

041■ Changes in industrial waste emissions (by type <within Japan>)

The amount of industrial waste generated by business activities

Emissions

The amount of waste plastics generated in Japan is said to be over
9 million tons a year, accounting for approx. 2% of all waste. Waste
plastics are subject to import restrictions by countries such as China, andmarine pollution, etc., caused by microplastics has attracted attention
as a major social and environmental problem. In addition to reducing
emissions, the importance of recycling resources is also becoming more
important. However, in order to recycle waste plastics, in addition to themanual removal of refuse required, lightweight items such as plastic
bags, and heavy items such as detergent bottles, need to be separated.
To improve the recycling rate of plastics, over the past many years the
METAWATER Group has been developing equipment that improvessorting efficiency and accuracy in manual sorting work using differencesin specific gravity.
Since the risk of explosions or fires caused by contamination of items
such as spray cans and lithium batteries is increasing at crushing andsorting facilities, we are also contributing to facility safety through thedevelopment of a system that prevents the spread of fires, detecting andextinguishing them quickly in the event of an accident. As of FY2018,
approximately 300 of our domestic waste recycling systems have beendelivered.

friendly items, and have replaced all internal-use paper with forest-certified paper.

continue to improve the adoption rate of electronic manifests while taking into account local situations and other similar factors.

METAWATER REPORT 201942