Underground waste containers

The underground container KORALI is a product that enables successful and rational organization of collecting, sorting, removal, treatment and disposal of municipal waste. It promotes the work of the municipal system and significantly improves the quality of the environment.

The experiences of the cities in which the underground waste containers KORALI are installed confirm that the design of the product meets the high aesthetic requirements. They are easy and quick to install, easy to load and unload, easy to maintain and easy to operate.

They are certified according to the standards that apply to this type of product. The company KORALI provides quality service and maintenance of its product.

DESCRIPTION AND TYPES OF UNDERGROUND CONTAINERS

The underground containers KORALI consist of: plastic manhole of high- density polyethylene with a service life of over 50 years, of the octagonal concrete pad, octagonal metal casing, large metal cover on which there is a hole with a small lid for throwing in waste which is closed by throttling and bags-containers for waste collecting. Container for sorting waste contains a special opening for sorting.

The container may be equipped with a pedal for the foot opening of a small lid. Below the casing and large lid there are steel subconstructions which provide long life thereof.

The container is made of quality materials, resistant to corrosion which makes it durable and highly functional product. All steel parts are hot – dip galvanized.

Case of the containers can be made in color according to customer specifications. Container for sorting can be created in all colors as agreed with the buyer.

They are produced in several basic types:

-KVR3-100/1,5 of 1,5 m³
-KVR4-80/1 of 1 m³
-KVR5-120/3 of 3 m³
-KVR6-150/5 of 5 m³
-KVR5-120-NK/3 of 3 m³
-KVR6-150-NK/5 of 5 m³.

Containers KVR3-100 /1.5 and KVR4-80/1 of 1.5 and 1 m³ are made for conditions of installation and use where space is limited, the number of users is adequate to capacity of these containers.

Containers KVR5-120-NK/3 and KVR6-150/5 are equipped with pedal for the foot opening of a small lid for the insertion/throwing in of waste.

SELECTION OF LOCATION FOR INSTALLATION OF UNDERGROUND CONTAINERS

• Define the approval and permissions from the relevant city authorities to set up an underground container to a location in accordance with the requirements and recommendations of local services for urban planning.
• Place for setting up the containers must be outside of underground installations, in order not to be damaged during installation of these.
• Place for setting up the container must be outside of overhead installations, trees and objects in order to be emptied with the help of the vehicle with a crane.
• Position of the container must be accessible to the vehicle with a crane that empties the container.
• Select the location where most of waste is disposed and in accordance with that define the number of containers in one place.

ECONOMICAL
No new investments into vehicles because the existing vehicles are capable for emptying underground containers by installing the cranes and receiving hopper. Vehicles remain operational for emptying standard containers. Emptying time of one underground container is up to 3 minutes.  The truck driver does it himself. Emptying requires no direct vehicle access to the container, and parked cars do not hinder because the reach of the crane enables emptying of containers.
Significantly cheaper maintaining for longer life makes this product even more economical.

SAFE AND PRACTICAL
Quick and easy to install and easy to use. There is a possibility to measure and record the quantity of waste in the container. Waste sorting is simple and easy as well. The protection system from ignition of contents of the container is built-in.

SPACE SAVING
In one underground container of 3m³ fit the quantity of waste that fits into 4 standard containers of 1,1m³ or in 40 buckets , volume of 120l. Above -ground part of the container takes up as much space as one container of 1,1m³, because the waste is naturally compressed due to the increased height up to 30%.

HYGIENIC AND SANITARY
Waste is in impermeable, non-combustible bags which tolerate temperatures up to 800 ° C, which are easily maintained by washing. The material of which the bags are made does not allow retention of the waste. There is no possibility of entering  dogs, cats and insects nor the possibility of improper removal of waste from the bag. There is no leakage of the contents or noise during emptying, no ingress of water into the container. There is no odor and wind dispersal of waste (paper, plastic bags).

KORALI, manufacturer of the underground container offers two types of installation:
I type – without concrete cassette  and II type- with the concrete cassette.

I TYPE – INSTALLATION OF UNDERGROUND CONTAINER WITHOUT CONCRETE CASSETTE

Installation of underground container includes the following activities:
1. Construction works on the installation of a polyethylene manhole:
• Fencing and securing of construction sites in accordance with prescribed standards and regulations in force.
• Preparation and marking the ground for digging, whereby marked are the basis of the excavation, the center axis and ground level (“0”) of which will be calculated depth of excavation and other altitude measurements.(“0” is the level of access paths and plateau of arranged space)
• Automated or manual excavation according to manufacturer’s instructions
• Making leveling concrete slabs
• Setting of the polyethylene manhole
• Concreting the manhole up to the height specified instructions of producers (Depending on the type of soil and groundwater non-presence, as well as the demands of investors, concreting of the manhole does not have to be done, because there is no risk of underground water).
• Backfilling and compaction of soil in layers around the manhole
• Loading and transportation of surplus excavated soil to the landfill.

2. Construction works on the construction of access paths and containers

3. Installation of the container casing:
• Placement of a bottom ring (filled with concrete) and control of a stable leaning and height-adjustment.
• Setting up a set of side edges of the lower ring, already fitted, and securing the position of a set of side walls and manhole over the limiter on the set of the side panels.

• Setting up a set of a large lid with previously installed bag.
• Obligatory test of all functional parts after installation.
• Subsequent placement of stickers with instructions and warnings for the purpose and safe use of containers.

TYPE II – INSTALLATION OF UNDERGROUND CONTAINERS WITH CONCRETE CASSETTE

1.Construction works on the installation of a polyethylene manhole:
• Fencing and securing of the site in accordance with prescribed standards and regulations in force.
• Replacement of existing underground containers, which the investor wants to replace by underground containers with a bag, it is necessary to dismantle …
first the above ground part, then from the concrete cassette (Pos. 1) remove the existing tank, and finally load everything and take to a location specified by the investor.
• Remove possible waste from concrete cassettes.
• Place the anchors at the bottom of the concrete cassette according to the budget, and the manufacturer’s instructions.
• Setting the manhole (Pos. 3) in the fresh concrete, and leveling the lower base of the manhole by horizontal at 200-220 cm below the level of access paths and plateau.
• Delivery of the buffer material (crushed stone) granulating of 0-30mm, filling and compaction in layers of 25cm, loading and removal of excess material.
• Over poured and compacted gravel form a layer of screed (Pos.5) minimum thickness of 9 cm whose upper surface is flat with the upper surface of the concrete pavement (Pos.6). Plateau of the container must be absolutely horizontal.
• Loading and removal of excess concrete.

2. Installation of the container casing:
• Placement of a bottom ring (filled with concrete) and control of a stable leaning and height-adjustment.
• Setting up a set of side edges of the lower ring, already fitted, and securing the position of a set of side walls and manhole over the limiter on the set of the side panels.
• Setting up a set of a large lid with previously installed bag.
• Obligatory test of all functional parts after installation.
• Subsequent placement of stickers with instructions and warnings for the purpose and safe use of containers.

By proper use of underground waste containers we:
• Extend the life of this product;
• We provide a complete selection of raw materials and organic waste;
• We avoid burning the contents of the container;
• The living area is cleaner, safer and more beautiful;
• We create the significant financial savings for customers, local communities and municipal companies.

As with most new things the exact instructions and getting used to good use, constantly informing the users with the help of the media and printed materials are needed and necessary.

Loading of the underground waste containers is done by throwing in the waste through the opening on the lid which can be closed by throttling. There are  labels and instructions for use on the lid of the container.

Emptying of the underground waste containers is done by removing the lid from a large bag with the help of a hydraulic crane on a standard garbage truck.
The emptying is done over the loading trailers or funnels which receive waste and direct it to the presses for compaction.

The bag opens at the bottom, by pulling the rope. After that the waste falls out from the bag by its whole weight without the possibility that the content remain in the bag and is spilled all over the truck and on the ground . Then the bag is closed by pulling the rope to limiter that allows the bag to close true within certain limits that defines a container for remaining/squeezed-out liquids.

Afterwards, the rope is securely blocked by the mechanism that prevents accidental opening of each bag. The bag is returned to the manhole, a large lid is mounted on the casing of the container in the original position. Emptying of the container and returning to its original position lasts up to 3 minutes.

Emptying of underground waste containers can be carried out with the help of a variety of equipment, even the existing (garbage trucks), with the renovation and upgrade of hydraulic crane with standard features and a removable hopper for receiving waste. The existing equipment remains operational also for emptying of standard containers.

The best solution for emptying are trash – truck – vehicles- of new generation equipped with the complete equipment for lifting and emptying of underground containers with the help of remote controls.

According to the customer needs the additional equipment for central monitoring  and guiding vehicles for emptying only loaded containers, via radio link, can be installed. This provides a complete cost-effectiveness and efficiency.

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