(best examples and good practices) on household organic waste ...

(best examples and good practices) on household organic waste ... (best examples and good practices) on household organic waste ...

11.11.2014 Views

137 implemented curbside collection of material which falls under producers’ responsibility, from apartment blocks ong>andong> detached house properties, a collection system which is becoming more common. (AÖS., 2009) Almost half of all municipalities in the country now have collection systems for source separated food waste. The most common collection systems are collections with separate containers, one for bio-waste ong>andong> one for combustible waste, collections with a multi-compartment system, or through optical sorting of different colored bags that are placed into the same container. The most common ways to collect the household waste in bins ong>andong> bags is either as a mixed waste fraction intended for waste-to energy incineration, or through two separated waste fractions – one for food waste ong>andong> one for combustible waste. Collection in bags constitutes a working environment risk ong>andong> has therefore become considerably less common. Mixed combustible waste from singlefamily houses is in most cases collected in 190 liter wheelie bins ong>andong> emptied every other week. Other than this, there are a number of different bag ong>andong> bin sizes which are collected ong>andong> emptied in various intervals. Waste from apartment blocks is normally collected weekly. Traditional back loading vehicles are still the most common when it comes to waste collection, but the technology for multi-compartmented vehicles is developing ong>andong> becoming more ong>andong> more popular, while side-loading vehicles account for a more constant share of the operators’ vehicle fleet. An increasing number of vehicles use biogas as fuel, which the local authorities may control through purchasing requirements. (AÖS., 2009) Today collection of waste with bags has been reduced. Manual hong>andong>ling of waste is being replaced by new technology ong>andong> automated systems, such as refuse vacuum pipes ong>andong> underground container systems. Both of these systems are becoming more common, particularly in bigger cities. One of several advantages is that they do not require heavy manual hong>andong>ling. From the point of view of health ong>andong> safety at work, vacuum collection systems are ong>goodong> since they are sealed ong>andong> completely automated. This type of collection system reduces the need for waste transportation, especially in residential areas. There are two kinds of vacuum collection systems, a stationary system ong>andong> a mobile system. With the stationary system the waste is collected using air in an automated vacuum system. It is thereafter transported through underground tubes, which connect the inlets with big containers placed in a terminal. With this technique the waste can be transported up to a distance of two kilometers from the inlets. The number of containers varies ong>andong> depends, on the one hong>andong>,

138 upon the number of collected fractions, ong>andong> on the other hong>andong>, on the waste volumes. The containers are collected by hook-lift vehicles. The mobile vacuum collection system also uses air to collect the waste. However, here the vacuum technique originates from the vehicle. Positioned under each input is a storage tank. The tanks are connected, via an underground pipe system, to a so called docking point which could be placed at a maximum distance of 300 meters from the tanks. The vehicle connects to the docking point for emptying, the vacuum system is turned on ong>andong> air transports the waste from the different storage tanks to the docking point ong>andong> further onto the vehicle. Mobile vacuum collection systems require specialized vehicles. (AÖS., 2009) Another collection system that is on the rise is the underground container (Picture 37.) system. By placing containers underground, the need for space on the street level is reduced. The temperature below the street level, where the waste is contained, is relatively low, which prevents odor, ong>andong> the containers can be easily emptied with a crane truck. There are also underground containers which are emptied with front-loading vehicles. Since the underground containers can hold bigger volumes, the level of transports is reduced. (AÖS., 2009) Picture 37.: Underground container (AÖS., 2009)

137<br />

implemented curbside collecti<strong>on</strong> of material which falls under producers’<br />

resp<strong>on</strong>sibility, from apartment blocks <str<strong>on</strong>g>and</str<strong>on</strong>g> detached house properties, a<br />

collecti<strong>on</strong> system which is becoming more comm<strong>on</strong>. (AÖS., 2009)<br />

Almost half of all municipalities in the country now have collecti<strong>on</strong> systems for<br />

source separated food <strong>waste</strong>. The most comm<strong>on</strong> collecti<strong>on</strong> systems are<br />

collecti<strong>on</strong>s with separate c<strong>on</strong>tainers, <strong>on</strong>e for bio-<strong>waste</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> <strong>on</strong>e for combustible<br />

<strong>waste</strong>, collecti<strong>on</strong>s with a multi-compartment system, or through optical sorting<br />

of different colored bags that are placed into the same c<strong>on</strong>tainer. The most<br />

comm<strong>on</strong> ways to collect the <strong>household</strong> <strong>waste</strong> in bins <str<strong>on</strong>g>and</str<strong>on</strong>g> bags is either as a<br />

mixed <strong>waste</strong> fracti<strong>on</strong> intended for <strong>waste</strong>-to energy incinerati<strong>on</strong>, or through two<br />

separated <strong>waste</strong> fracti<strong>on</strong>s – <strong>on</strong>e for food <strong>waste</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> <strong>on</strong>e for combustible <strong>waste</strong>.<br />

Collecti<strong>on</strong> in bags c<strong>on</strong>stitutes a working envir<strong>on</strong>ment risk <str<strong>on</strong>g>and</str<strong>on</strong>g> has therefore<br />

become c<strong>on</strong>siderably less comm<strong>on</strong>. Mixed combustible <strong>waste</strong> from singlefamily<br />

houses is in most cases collected in 190 liter wheelie bins <str<strong>on</strong>g>and</str<strong>on</strong>g> emptied<br />

every other week. Other than this, there are a number of different bag <str<strong>on</strong>g>and</str<strong>on</strong>g> bin<br />

sizes which are collected <str<strong>on</strong>g>and</str<strong>on</strong>g> emptied in various intervals. Waste from<br />

apartment blocks is normally collected weekly. Traditi<strong>on</strong>al back loading<br />

vehicles are still the most comm<strong>on</strong> when it comes to <strong>waste</strong> collecti<strong>on</strong>, but the<br />

technology for multi-compartmented vehicles is developing <str<strong>on</strong>g>and</str<strong>on</strong>g> becoming<br />

more <str<strong>on</strong>g>and</str<strong>on</strong>g> more popular, while side-loading vehicles account for a more<br />

c<strong>on</strong>stant share of the operators’ vehicle fleet. An increasing number of vehicles<br />

use biogas as fuel, which the local authorities may c<strong>on</strong>trol through purchasing<br />

requirements. (AÖS., 2009)<br />

Today collecti<strong>on</strong> of <strong>waste</strong> with bags has been reduced. Manual h<str<strong>on</strong>g>and</str<strong>on</strong>g>ling of<br />

<strong>waste</strong> is being replaced by new technology <str<strong>on</strong>g>and</str<strong>on</strong>g> automated systems, such as<br />

refuse vacuum pipes <str<strong>on</strong>g>and</str<strong>on</strong>g> underground c<strong>on</strong>tainer systems. Both of these<br />

systems are becoming more comm<strong>on</strong>, particularly in bigger cities. One of<br />

several advantages is that they do not require heavy manual h<str<strong>on</strong>g>and</str<strong>on</strong>g>ling. From the<br />

point of view of health <str<strong>on</strong>g>and</str<strong>on</strong>g> safety at work, vacuum collecti<strong>on</strong> systems are <str<strong>on</strong>g>good</str<strong>on</strong>g><br />

since they are sealed <str<strong>on</strong>g>and</str<strong>on</strong>g> completely automated. This type of collecti<strong>on</strong> system<br />

reduces the need for <strong>waste</strong> transportati<strong>on</strong>, especially in residential areas.<br />

There are two kinds of vacuum collecti<strong>on</strong> systems, a stati<strong>on</strong>ary system <str<strong>on</strong>g>and</str<strong>on</strong>g> a<br />

mobile system. With the stati<strong>on</strong>ary system the <strong>waste</strong> is collected using air in an<br />

automated vacuum system. It is thereafter transported through underground<br />

tubes, which c<strong>on</strong>nect the inlets with big c<strong>on</strong>tainers placed in a terminal. With<br />

this technique the <strong>waste</strong> can be transported up to a distance of two kilometers<br />

from the inlets. The number of c<strong>on</strong>tainers varies <str<strong>on</strong>g>and</str<strong>on</strong>g> depends, <strong>on</strong> the <strong>on</strong>e h<str<strong>on</strong>g>and</str<strong>on</strong>g>,

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