Nihon Genryo

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SIPHON washing machine


Mobile Water Treatment Unit

Mobile Siphon Tank is compact and unified Siphon Tank, piping, control panel and chemical injection pumps.

Supplying Purified Drinking Water for disaster areas

When the natural disaster occurs, supply of purified drinking water will be the big problem, as it is known at least 3L of water/day is necessary per person but includes household water (living water) we need practically 300L/day. Water purification procedure can be the main factor and required sustainable and reliability to produce safety water.
Our original idea of “SIPHON (kneading) WASHING system” installed into “MOBILE SIPHON TANK” can maintain the filter media clean and get quality water constantly, also no need to replace it and can expect to reduce maintenance costs or the amount of backwash water. This washing system exfoliates the fixation sludge of the filter media particles by kneading washing action and rinses only muddy water out from the filtration tank. In any occasion, MOBILE SIPHON TANK provides purified water due to apply any kinds of filter media.
Although this MOBILE SIPHON TANK is compact size to be mounted on truck, it is possible to treat bulk water and has many valuable merits than the other filter elements. We absolutely provide safety, reliable and good quality purified water by this “Mobile Siphon Tank” in any disaster damaged areas by mounted on truck.

Mobile Siphon Tank for lack of infrastracture area

MOBILE SIPHON TANK would be mounted on relatively small truck to take to using area, set on the ground or on truck bed and connect to pumps with pipes easily. And operation is automatic by control panel, you just push one button for running. That is more important than anything else is "MOBILE SIPHON TANK" do not need replace the media on site. At site, replacement constructing is needed take a time and time-consuming arrangement. We recommend using MOBILE SIPHON TANK as movable water purifier unit in developing area by mounting on truck.
We recommend using Mobile Siphon Tank as Water purifier unit in developing area by mounting on truck.

Mobile SIPHON Tank with civil work

Wastewater treatment on civil work site put extreme load on filter media. As a result, we have to do a lot of additional work and cost on it. However our amazing product MOBILE SIPHON TANK will get along with it. Filter media always keeps clean by the kneading washing action of our original washing system which is installed into the tank. From this incredible washing action, we fulfilled to avoid fixation media and provide stable treated water any time. Therefore, we can reduce maintenance cost significantly. Furthermore, as this tank is compact design, it’s easy to transport by truck mounted, handle and operate in any civil work sites.


1) Providing stable quality water constantly
   Our original innovative kneading washing principle, “SIPHON WASHING system” put into this device, MOBILE SIPHON TANK, fulfilled to prevent fixation of the filter media and can always keep clean and produce stable treated water.
 2)  Compact design
   We unified all facilities such as filtration device, cartridge, front piping, control panel, PAC (Poly Aluminum Chloride) as unit.
 3)  Unnecessary of media replacement
   Since filter media are always kept clean, the media replacement is not necessary. Therefore, there is no need to dispose used filter media as industrial waste and significantly contribute to environmental problems and response to ISO 14000.
 4)  Backwash water can be significantly reduce
 Since MOBILE SIPHON TANK exfoliates hard adhering suspended substances by SIPHON WASHING system, the backwashing is only for rinsing away of the suspended substances. Therefore, the MOBILE SIPHON TANK can reduce the amount of backwashing water in comparison with the conventional filter tanks.

Srandard Specifications of MOBILE SIPHON TANKs

 Material Tank body: SS400, Pipe: HIVP   
 Types Body diameter
Length(mm)×Width(mm)×Hight(mm) Motor
Amount of treated water
(m3/H)     *LV=10 
MST-260 Φ260 900×900×2100  0.75 0.5 600
MST-450 Φ450 1000×1000×2100  1.6 900
MST-550 Φ550 1670×1150×2100  1.5 2.4 1200
MST-700 Φ700 2125×1350×1750 3.7 3.8 1900
MST-1000 Φ1000 2800×1700×2000 7.9 2500
MST-1200 Φ1200 3000×1900×2100 11.3 2900
MST-1600 Φ1600 3550×2100×2650 7.5 20.1 3500
MST-1600S Φ1600 Unit 2400×1500×1750 1500
Tank Φ1650×2435 1850
MST-1800 Φ1800 3550×2100×2670 25.4 4200
MST-1800S Φ1800 Unit 2700×1700×1750 1700
Tank Φ1850×2470 2000
MST-2200S Φ2200 Unit 3000×1850×1800 11.0 38.0 1800
Tank Φ2212×2978 3700

Case Study of Natural Disaster


Case 1

For Washing Water
Miyazaki city, Miyazaki prefecture in September, 2005
Water purification plant

A huge typhoon hit the Kyusyu district and the OHYODO river overflowed by heavy rain in 2005. At that time, the water purification plant in Miyazaki prefecture didn’t work and 30,000 houses were suspended their water supply. For the first procedure, we needed washing purified water to clean the water purification plant facility covering by muddy sludge. Our MOBILE SIPHON TANK worked out this problem properly as water purification device. We used contaminated water as untreated water and produced washing water by MOBILE SIPHON TANK.











Case 2

For Washing Water
Osyu city,IWATE prefecture in 14th, June, 2008
Water purification plant

Part of northern area of Japan, IWATE and MIYAGI prefectures got devastating damages by an earthquake measuring 7.2 and it caused collapse of KITAMATA Water Purification Plant and suspension of the water supply for 1,420 houses.
As we were requested by water purification department of OSYU city, we took MOBILE SIPHON TANK mounted on truck and set up on site as water purifier plant. After 5 days working operations, we managed the turbidity 0.1 degree which is regulated by JWWA (Japan Water Works Association) and supplied drinking water for the houses.   








Case 3

For Washing Water
Kuji city, Iwate prefecture in July, 2008
Water Purification Plant

A magnitude 6.8 earthquake hit AOMORI and IWATE prefectures located in northern area of Japan damaged to the water purification plant facility.
The facility was not able to provide running water by only disinfectant process due to high Manganese consistency. And then, we took MOBILE SIPHON TANK (MST-1600) mounted on truck and set up the MOBILE SIPHON TANK at Pond by the request of the water purification department of KUJI city. Through our routine experiments and knowledge, we succeeded in producing quality water just only 2 days and finally, we supplied running water cleared the regulation turbidity under 0.1 degree by immediate rapid recovery operation.








Case 4

DAANBANTAYAN, Cebu, Philippines in 2013 Water Purification Plant

Huge typhoon “Yolanda” hit Philippines in November, 2013. We dispatched seven (7) people for an emergency water supply support team to disaster area and installed water purification device “MOBILE SIPHON TANK” by the request of JICA (Japan International Cooperation Agency). We started drinking water supply for 4,000 households (20,000 people) there from December 28th, 2013. We also made a trial run and training for local government staff.   

Case Study of Civil Work

ANAN City, TOKUSHIMA prefecture in February, 2006 Wastewater treatment at civil work site MOBILE SIPHON TANK (MST-1600) worked out to improve water quality to regulation level from high turbidity level of water in order to discharge wastewater into the river from the construction work site.


 ◆Public sector


 MST-1600 X 2units
 Drinking water supply


 Waste Water Treatment Plant in AOMORI Prefecturey

 Waste Leachate Water treatment



 ◆Private sector


 Civil work waste water treatment



 Industrial waste water treatment




 Pilot test device on site



 Truck-mounted MST-700 x 6vehicles
 Water supply for natural disaster



 MST-700 x 3units
 Drinking water supply in campuses



 Drinking water supply
 Truck-mounted MST-1000
 Drinking water supply (Remove Manganese)