JOHKASOU Japan’s Solution for Onsite Sewage Treatment

“How a sushi eating nation guarantees the protection of its fish habitat ”

*Terrain Agnostic* ---This product is designed for hilly, rocky and even earthquake prone terrain where systems that require concrete chambers can't go. It is made of FRP (stronger than steel or concrete) so there is no need for building an underground concrete chamber (unless you want it installed under a parking lot or driveway).

*Soil Type Agnostic* --This is the answer to black cotton soil, because no water can seep into it or out of it. This is good news if your property is in a high water table or a flood prone area. *Multiple Installation Options* -- This system can be installed underground, above ground or in basements). This versatility can make a great difference when your property has space constraints. This is the most versatile system on the market. Giving you freedom to buy and unlock property value everywhere.

*Standardised* - This system is designed by the government of Japan, then manufactured in an ISO certified factory where it is also tested for performance, so no fundi mistakes. It comes ready to Plug-and-play. Our engineers supervise installation.

*Only one electro-mechanical component* ---This system comes with a blower that is also designed in Japan.

*Best performance in Energy efficiency* ---It uses half the electricity that competing systems consume. So the running costs are lowest on the market.

*Low maintenance* --- And yet our company will maintain the system for you. Same as the normal service your car needs, we will clean the air filter in the blower and examine the quality of treated waste water three times a year.

*Smallest footprint compared to all other systems* ---This is great if you have space constraints.

*Save money on water & maintain green gardens*. ---Treated Water from this system is perfect for irrigation, car washing, cleaning floors and flushing toilets.

*Tried, tested and proven, 30 years ahead of the competition.* --- Designed by the government of Japan and installed in over 10 million homes and businesses around the world, the Johkasou has been refined over 30 years. We believe that this system can transform how you deal with wastewater challenges.

Please help us to raise sanitation standards and to protect our environment.

ANAEROBIC FILTER BED + CONTACT AERATION MOVING BED METHOD

The term ‘Johkasou”, literally means “purification tank” in Japanese. Johkasou is a standard wastewater treatment system used all over Japan. The system is made for buildings that are not on the municipal sewer system.

The unit is a fibre-reinforced plastic tank and contains five functional five functional chambers (sedimentation, anaerobic, aeration, storage and disinfection) in a tank. Such an anaerobic and aerobic combined biological process with high efficiency has been commonly employed as an onsite wastewater treatment system for over 30 years in Japan.

Treatment Process 1. The first compartment is a SEDIMENTATION chamber wherein the raw wastewater settles into

distinct sludge and scum layers under anaerobic conditions. The relatively clear effluent flows through twin baffles into the next chamber.

2. This second chamber is the largest in the unit, providing residence time for the slow process of ANAEROBIC biodegradation. In contrast to a standard septic tank, the anaerobic treatment process in the Johkasou is enhanced with the use of filter media. Retained in the bottom half of the chamber, these media are designed to provide surface area optimised for biofilm development. The result is a biologically rich elevated sludge blanket through which the water flows and is treated. The water is baffled again as it flows into a third chamber.

3. The third chamber is the site of AEROBIC treatment. Air, supplied by a linear compressor, travels through a perforated piping system and escapes into a column of smaller propylene media. These media are also designed for optimal biofilm formation. The action of the air constantly circulates the media in the top two-thirds of the chamber, creating a fluidised bed.

Aerobic bacteria thrive in this rich, oxygenated environment, resulting in a high degree of treatment. Media in the chamber’s lower third remain stationary and filter suspended solids. The programmable compressor automatically backwashes the whole column of media for 5 or 10 minutes, one or two times each day and transfers residual solids back to the head of the system for further digestion.

4. The fourth chamber stores the treated water awaiting discharge. In addition, an air-lift pump (powered by the compressor) recirculates a specific amount of treated water into the head of the system for denitrification and flow equalisation.

5. Finally, the treated water is disinfected as it flows past a tablet chlorinator, before being discharged to a storm sewer or a nearby body of water or recycled for irrigation.

Treatment performance

The fact that treated effluent empties directly into Japan’s public water bodies without resulting in contamination is a testimony to the high degree of treatment achieved by Johkasou technology.

The system achieves the following levels of standards:

BOD (Biochemical Oxygen Demand) Equal or Less than 20mg/L

T-N (Total Nitrogen): Equal or Less than 20mg/L

SS (Suspended Solid) Equal or Less than 20mg/L

COD (Chemical Oxygen Demand) Equal or Less than 30mg/L

BAE TYPE SPECIFICATION TABLE

BAE

TYP

E SP

ECIF

ICAT

ION

TAB

LE

Inflo

w C

apacity

Volu

mn

Ele

ctr

ic C

onsum

ptio

nC

hlo

rin

e C

onsum

ptio

n

Type

WL

HW

LH

[m3]

[kW

h/d

ay]

[kg/d

ay]

1 K

L/d

ya

BA

-1/C

0.7

51.8

61.3

1.1

6145

0.6

50.0

1

2 K

L/d

ya

BA

-2/C

0.9

63.0

01.3

2.7

0271

0.6

50.0

1

3 K

L/d

ya

BA

-3/C

0.9

63.0

01.3

2.7

0271

0.6

50.0

2

4 K

L/d

ya

BA

-4/C

1.3

02.4

01.6

13.0

4300

0.9

80.0

2

5 K

L/d

ya

BA

-5/C

1.7

02.8

01.9

84.8

6510

2.3

00.0

3

6 K

L/d

ya

BA

-6/C

1.7

03.4

71.9

86.2

4610

2.3

00.0

3

8 K

L/d

ya

BA

-8/C

2.2

03.6

01.9

88.6

7860

2.5

00.0

4

10 K

L/d

ya

BA

-10/C

2.2

03.6

01.9

88.6

7860

3.4

60.0

6

12 K

L/d

ya

BA

-12/C

2.2

04.8

52.2

813.8

11,3

60

4.6

10.0

7

15 K

L/d

ya

BA

-15/C

2.2

04.8

52.2

813.8

11,3

60

5.9

50.0

8

20 K

L/d

ya

BA

-20/S

102170

5.3

22.3

016.6

01,2

70

6.9

10.1

1

25 K

L/d

ya

BA

-25/S

102170

6.0

32.3

018.0

51,4

20

8.0

60.1

4

30 K

L/d

ya

BA

-30/S

102170

7.1

32.3

021.0

41,5

80

10.5

60.1

7

35 K

L/d

ya

BA

-35/S

102170

7.7

72.3

024.1

61,8

00

10.2

00.1

9

40 K

L/d

ya

BA

-40/S

102170

8.6

72.3

027.5

92,0

40

12.6

70.2

2

45 K

L/d

ya

BA

-45/S

102170

9.6

72.3

030.9

82,2

90

15.3

60.2

5

50 K

L/d

ya

BA

-50/S

102170

10.6

72.3

034.4

32,5

30

17.8

60.2

8

55 K

L/d

ya

BA

E-5

5/S

202170

6.1

42.3

002170

6.0

62.3

038.3

01,6

80

1,2

20

25.7

30.3

1

60 K

L/d

ya

BA

E-6

0/S

202170

6.6

82.3

002170

6.5

82.3

041.7

81,7

80

1,2

90

29.7

60.3

3

65 K

L/d

ya

BA

E-6

5/S

202170

7.2

02

.30

02170

7.0

92.3

045.1

61,9

20

1,3

90

33.0

20.3

6

70 K

L/d

ya

BA

E-7

0/S

202170

7.7

42.3

002170

7.6

12.3

048.6

52,0

80

1,5

10

35.7

10.3

9

75 K

L/d

ya

BA

E-7

5/S

202170

8.2

72.3

002170

8.1

22.3

052.0

62,2

20

1,6

10

35.7

10.4

2

80 K

L/d

ya

BA

E-8

0/S

202170

8.8

12.3

002170

8.6

32.3

055.5

12,4

00

1,7

40

37.6

30.4

4

85 K

L/d

ya

BA

E-8

5/S

202170

9.3

42.3

002170

9.1

42.3

058.9

32,5

50

1,8

40

36.8

60.4

7

90 K

L/d

ya

BA

E-9

0/S

202170

9.8

72.3

002170

9.6

62.3

062.3

82,6

90

1,9

50

42.2

40.5

0

95 K

L/d

ya

BA

E-9

5/S

202170

10.4

02.3

002170

10.1

82.3

065.8

32,8

30

2,0

50

47.6

20.5

3

100 K

L/d

ya

BA

E-1

00/S

202170

10.9

42.3

002170

10.7

02.3

069.3

12,9

80

2,1

60

47.6

20.5

6

Note

:

1.

Fo

r ele

ctr

ic c

onsum

ptio

n,

use L

oadin

g F

acto

r =

80%

2.

1

year

= 3

65 d

ays o

f opera

tio

n

3.

F

or

opera

tio

n c

ost,

deslu

dgin

g is n

ot

consid

ere

d b

ecause it

depends o

n t

he r

egio

n a

nd a

lso t

he o

pera

tio

n c

onditio

n.

[kg]

Ta

nk 1

[m

Ta

nk 2

[m

]W

eig

ht