TANKS IMHOFF
The septic tanks Imhoff type are units of primary treatment of the anaerobic type, consisting of a lower tank said digester and an upper said settler.
The influent enters the sedimentation compartment which has the purpose of retaining the solid bodies and the floating material; from here it flows into the lower compartment of digestion, through the opening on the bottom of the sedimentation.
Digester and the sedimentation tank are dimensioned in such a way that in the first one has a biological stabilization of the organic substances sedimented (fermentation and anaerobic digestion) and that in the second writing is that necessary calm zone that allows a suitable sedimentation of solids in the effluent. Periodically mineralized substances, sludge and floating substances, should be taken.
PRIMARY TREATMENT are predominant in the physical forces. They have the purpose of pre-treat
the wastewater and remove the gross elements that could affect the operation of
machinery present in the later stages of the plant. In these treatments is carried out a first roughing
sewage, in fact removes a portion of the organic load and suspended solids. Precisely for this
why are rarely used alone but always upstream of secondary treatments.
ROUTINE MAINTENANCE
Proceed generally from one to four times a yearextraction of the sludge and of the substances
Floating from the digester and settler. Make sure the hole of communication between settler
digester and is not occluded.
EVALUATION TECHNIQUES FOR PRODUCT SELECTION
The technical solutions proposed for the treatment of domestic wastewater enable discharge in Public
Sewer, in Surface Water and Soil respecting the values indicated in the tables of
Legislative Decree 152/06.
These technical solutions always include a primary treatment and secondary treatment and
dimensioning of the artefacts that make up the system varies depending on the receiving body.
Knowing, however, the large variety of appropriate treatments offered by various institutions, the Office of Ecology
remains available to implement any indication by the competent Authority.
Products must be chosen according to the number of Inhabitant Equivalent (AE), and that the parameter
characterizing in comparable terms and comparable treatment plants.
It is considered an AE characterized by a hydraulic load of 200 liters per day and an organic load
(BOD5) of 60 grams per day. The following is an indicative table to locate the No. of inhabitants
equivalent to the most popular activities:
MAINTENANCE, INSTALLATION, DISCHARGE SLUDGE OILS AND FATS
In all installation and maintenance to be assistedby specialized personnel. Our
products are not equipped with systems for treatment of sludge, for which those produced in excess of
the needs of the purification process, must be periodically removed from the plant by companies
authorized in accordance with the regulations in force at the installation site.
Decree n ° 152/06, as amended
Decree No. 185 of 12/06/03
Resolution of 04 Febbraio1977.
REGULATORY FRAMEWORK
UNI EN 12566-1: 2004 - UNI EN 12566-3: 2005
UNI EN 1825-1: 2005 - UNI EN 858-1: 2005
DIN 4040
HARP guidelines of various regions
EEC Directive 91/271 of 05.21.1991
Warranty, attached to the booklet of instructions or technical manual supplied
with the purchase of its products, is additional and not in lieu of any other rights to which
enjoyed by the consumer / purchaser of the product, without prejudice to the rights of the latter
and holder pursuant to the Decree. 02/02/2002 nr. 24, rule that Italy has implemented the Directive 1999/44 / EC
on guarantees for consumer goods.
1) With this Warranty guarantees the product against defects in material
or workmanship for a period of 24 months from the original date of purchase.
Every container and 'subjected to testing, however, could suffer damage due to storage or
to transport, for which timeto time be determined responsibility: and for this reason it
recommends the consumer / buyer cannister to verify its integrity before his
installation and use.
2) If, during the warranty period you find any defects in materials or workmanship
(The original date of purchase), we will provide repair or
to replace the product or its defective parts to the terms and conditions
below, with no charge for labor costs or spare parts, to
provided that the unit under warranty arrives at the plant Telcom SpA
the consumer's expense.
3) We accept no responsibility for any loss or damage relating to products, services,
including economic or intangible losses - the price paid for the product - loss
profits, revenue, data, enjoyment or use of the product or other products associated - loss or damage
indirect, or caused to third parties because of the defect identified, incidental or consequential damages. This One
valid for losses and damages under any legal theory, including negligence and other acts
offenses, breach of contract, express or implied warranty and strict liability.
4) Warranty repairs will be performed only if the defective product will be presented
within the time allowed by law together with the sales invoice or the receipttax
Original.
5) The company reserves the right to refuse warranty repair service if the above
documents.
6) This guarantee will not apply if the model or serial number
reported on the product has been altered, deleted, removed or made illegible.
7) The guarantee does not cover the costs and risks associated with transport of your product.
Are excluded from the warranty:
a) periodic maintenance and repair or replacement of parts due to wear and tear;
b) damage or defects caused by use, operation or improper treatment of the product, for purposes other than
normal, that is, from that given in Annex instruction manual or technical manual;
c) damage from improper use of the product, meaning misuse:
• Incorrect installation or use of the product for purposes other than those provided or failure to follow instructions on installation and use;
• improper maintenance of the product, not in accordance with instructions on proper maintenance;
• installation or use of the product does not comply with the technical or safety regulations of the country in
which the product is installed or used, as well as the rules of burial contained in the instruction booklet
Proper installation is essential for the success
dell'interro.
In any case, it is necessary to make usethe assistance of a qualified technician who tips the most suitable choices
in relation to the characteristics of the ground, follow all phases of the operation and releases the appropriate
written report on what runs. That document should be retained with the code of traceability
attached to the tank.
Without these documents the warranty expires.
The digging Whereas, in addition to the size of the tank, must be calculated more on
each side, a distance of 30 cm over the overall dimensions. The bottom of the excavation will allow
perfect drainage, to avoid causing the stagnation and accumulation of water.
For the realization of the excavation, observe the following rules of thumb:
a. land for non-bearing (soft ground) consider that the angle of excavation can not
be greater than 45 degrees.
b. for soils with medium hardness not superarei 60 degrees
c. for rock excavation can reach up to 80 degrees.
At the top, around the excavation, should be left a free zone of about
60 cm. width, to avoid the franamentodella earth and to allow the movement of the
operators during trenching.
WARNINGS GENERAL
1 - The tank should never be placed in washouts, clay, on slopes, in locations subject
to rainwater downspouts, etc. In such situations it is necessary to make use of uNo technical
enabled knows that the morphological and hydrogeological the installation area and define
appropriate action to be taken.
2 - In no case, however, the excavation can be achieved on washouts, clay, swampy and not
allow the deep drainage.
3 - When you and in the presence of a shallow aquifer
and you can expect its rise, it is necessary to make a suitable drainage of the excavation to avoid
that the hydraulic pressure on the tank can get to cause damage by crushing. One possible
solution is the realization of a system for collection of the water through a drainage pit. The water
Harvesting can be disposed of by means of a sewage pump adapted to drain the bottom of the well.
4 - During installation, you may want to close the excavation as soon as possible, as sudden rains
Torrential or exceptional events may create standing water and cause irreversible damage to
tank.
5 - The area will result dell'interro be walked on, and can be made only with the driveway or lorry
creation of suitable facilities, which should be calculated by an engineer.
PROCEDURES FOR THE UNDERGROUND:
1. Run the excavation with the suggested dimensions
2. Create a bed of 15-20 cm of sand is not recycled, providing in its interior at least one drain pipe.
Levelthe base thoroughly so realized, taking care to eliminate any
asperities. Make sure that the area of support will not yield under the weight of a full tank.
3. When satisfied that the integrity of the tank, move it empty, using the lifting lugs, if any, or
using a sling to pass into the grooves of the artifact.
4. Level perfectly the tank and its possible extension cockpit. Achieve all
hydraulic connections with the rest of the system and check for leaks before continuing
with the underground.
INSTRUCTIONS UNDERGROUND
5. Fill the tank with water to about half, and fill the empty space between the tank and the wall
the trench with sand, up to the water level, with layers of about 20-30 cm for a time (Fig. 4),
taking care to perfectly compacted, using a wooden stake (fig. 5) or other
suitable means. Avoid downloading the sand in large quantities, because this could create accumulations,
capable of deforming the tank, while it could generate gaps in other areas. And essential to try
compacting at most every single layer that is added.
Note - Excellent results trenching can be achieved with the use of concrete, the better
if the type lightened by the presence of polystyrene or other, to use alp osto sand. Also in
this case proceed to pour in stratsubsequent ranging leveled, taking care not to exceed, for
each layer, a thickness of 20-30 cm and by avoiding excessive quantities download in a cast, both for
does not damage the tank, both to prevent localized accumulations and consequent voids in adjacent areas. The
different layers should be discarded allowing the cement to consolidate and form a seal for the layer
next.
6. Continue the underground in successive layers, drawing each time the level of the layer with the
water that enters the fuel tank, until full coverage.
7. We recommend to fill the top of the hole, finoall'inizio extension of the cathedral, if
This, with the sand not recycled, completing the last phase of trenching with topsoil,
taking care not to exceed the maximum depth of 30 cm underground.
8. Leave the underground tank full of water for a day or two to allow better
bedding. Before use, especially in the presence of hydraulic pumps, make sure it is
was made an adequate venting system, able to avoid the creation of vacuum, making flow
air constantly, when emptying the tank.
* Note: Use the reservoir only burying. The use above ground is not Consen-tito and does, in any case,
void the product warranty.
Under normal conditions of use, the tank must befilled at most up to her mouth, avoiding
fill any extension
9. What is mentioned in the preceding paragraphs is relative all'interro a single tank. For more tanks (seats
in series or in parallel) to perform excavations separated and at least one meter away from each other,
otherwise provide a bearing wall of at least 20 cm.
deliveries are made with articulated given the bulky transport difficulties, please contact us before any purchase, for calculation of costs, especially for deliveries on the islands!
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