INSTALLATION

USE

DESCRIPTION

CAPACITY

PRODUCT CATEGORY

PRODUCT NAME

APPLICATION

P

TE NTED

L I C E N C E

Backfill the area with the originally excavated material and a top layer of compost to allow the vegetation to grow.

BACKFILLINGAND FINISHING

COUNTRY is the phytodepuration system designed by ISEA which utilizes the horizontal subsurface flow method for domestic sewage treatment. Pretreated wastewater is evenly distributed into absorbent trays where emergentrooted hydrophytes perform their natural phytodepuration process. The absorbent trays are watertight containers made of high density polyethylene with the typical truncated pyra-mid shape. Each tray has an absorbent bed area of 2 m² and is designed to serve one equivalent inhabitant. The absorbent trays are installed underground and filled with gravel and stones on the bottom, followed by a layer of geotextile and compost. The phytodepuration systems are particularly suitable for small residential communities not connected to the sani-tary sewer network. The system does not include any electrical equipment and requires very little maintenance.

• A BIOLOGICAL IMHOFF tank for pretreatment of black waters;• A GREASE TRAP for pretreatment of gray waters;• A MANHOLE (35.5 cm x 80cm) with cover for inspection;

which is equivalent to the average daily flow;• A FINAL MANHOLE (35.5 cm x 80cm) with cover for inspection.

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Certified Quality System

Dig holes to accommodate the Biological Imhoff tank and the Grease Trap as described intheir specific technical papers. For the absorbent trays dig a perfectly horizontal trench 80 to 120 cm deep and wide enoughto allow the installation. Place on the bottom of the trench a layer of compacted fine sand (0-5 mm) or other inert material and install the absorbent trays and relevant piping.

EXCAVATION

FILLING Fill the Biological Imhoff Tank and the Grease Trap with water.

START UP

Periodically remove and dispose of the contents of the Grease Trap and the Biological Imhoff tank.

CHECKS AND MAINTENANCE

ABSORBENT TRAY SUBIRRIGATIONSYSTEM

COUNTRY

TREATMENT OF CIVIL DWELLINGMIXED WATERS

CCOUNTROUNTRYY

FROM 2 TO 24 INHABITANTS EQUIVALENT

A complete COUNTRY plant includes:

• A NUMBER OF ABSORBENT TRAYS

Fill the absorbent trays with the following layers:• 10-15 cm layer of stones;• 30 cm layer of gravel;• 20-30 cm layer of compost.

Check that the installation has been done correctly.Proceed to plant broad leaved evergreen plants with high water uptake capability. (See attached list)

A

INFO

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Auruncus Sylvester

Astilbe

Elymus Arenarius

Felci

Iris Pseudoacorus

Iris Kaempferi

Lythrum Officinalis

Nepeta Musini

Petasites officinalis

Aucuba Japonica

Bambù

Calycantus Florindus

Cornus Alba

Cornus Florida

Cornus Stolonifera

Cotoneaster Salicifolia

Kalmia Latifolia

Laurus Cerasus

Rhamnus Frangula

Spirdea Salicifolia

SUGGESTED VEGETATION

PLANTS FLOWERS

ISEA guarantees the complete treatment of the influent in accordance with the following standards:• Italian: D. L.vo 152/99 • European: Cee 271/91

mc 08

35 cm

mc 53

mc 021

160 cm

water inletfrom Biological

Imhoff tank

ø 110 ø 110

08 mc

55 mc54

mc

absorbent tray earth

geotextile

gravel and stones

water inlet fromgrease trap

ø 110

initial manhole

line continues to the endof the designed layout

finalmanhole

mc 03 xam