(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

181 Picture 51.: Resident with green kitchen waste bin ong>andong> brown garden waste sacks (Success stories on composting ong>andong> separate collection., 2000) Vehicles used for the scheme include a tractor ong>andong> trailer which are used for the collection of the garden waste, ong>andong> a van, which is used for the collection of the kitchen ong>andong> recyclable wastes. All three waste streams (kitchen waste, garden waste ong>andong> recyclable wastes) are collected on the same day of the week, although they are all collected separately The majority of residents participate in the scheme as the grey bin of mixed waste is collected only fortnightly ong>andong> this provides an incentive to segregate compostable ong>andong> recyclable wastes. Using a figure of one tone per year as the average quantity of waste produced per household, Wyecycle claims to have reduced the amount of waste being sent for long>andong>fill by 78 % as the average quantity of waste now being sent for long>andong>fill per household is 220 kg. Of the green waste collected, approximately a quarter by weight is kitchen waste ong>andong> three quarters is garden waste. The scheme is currently running at a capacity of around 250 tons per year. The quantities of kitchen waste arising are fairly consistent all year round, ong>andong> so any variations in the quantities collected are due to a varying quantity of garden waste. The minimum quantity of waste collected during the last 12 months was in February when only two tones of garden waste were collected (plus the four to five tones of kitchen waste). The maximum quantity of waste collected during the last 12 months was in September, when 20 to 25 tons of garden waste were collected (plus the kitchen waste).

182 The method of composting the garden waste is that of a static pile/aerated windrow system. The waste is heaped in a pile ong>andong> left for one month. This is then turned ong>andong> moved to the next heap space ong>andong> left again for another month, ong>andong> water is added if the heap has got too dry. This is done a total of nine times, after which it is ready to be sieved, bagged ong>andong> sold. There is no shredding involved ong>andong> any large pieces are simply put back into the system ong>andong> go around again. The kitchen waste is placed in a secondhong>andong> shipping container, before being added to the garden waste composting system. Here it undergoes partial composting ong>andong> digestion within a fairly anaerobic environment. After three weeks the waste is transferred to another shipping container where it is left a further three more weeks before being added to the garden waste. This process reduces the risk of nuisance from fly ong>andong> vermin. The plant is located 1.6 km from Wye ong>andong> 0.8 km from Brook. The collection of kitchen waste is undertaken by one visit to each of the villages. The number of trips carried out by the tractor for the collection of garden waste is dependent on the quantities of garden waste to be collected. The trailer on the rear of the tractor holds approximately one tone of waste, ong>andong> hence if there are five tones to collect then five trips are made. The end product of the process is marketed as a soil conditioner ong>andong> mulch, ong>andong> not as a high-grade product intended for growing seeds in. Research into its composition, along with growing trials, has been undertaken by students at Wye College. The compost is sold back to the residents within the two small parishes of Wye ong>andong> Brook. It is either bagged up ong>andong> retailed from a local hardware store, which takes the orders for Wyecycle which then delivers the compost, or the compost is sold in bulk from the site. Compost is bagged within old fertilizer bags ong>andong> is then sold as a 30 kg product. It costs GBP 3 (EUR 4.5) per bag or GBP 10 (EUR 15) for four bags. It can be bought in bulk for GBP 10 (EUR 15) per cubic meter. In general, it is the householders ong>andong> long>andong>scape gardeners that buy the compost ong>andong> Wyecycle has not experienced any difficulties in selling the product. The scheme is publicized using leaflets to householders which inform the residents of the scheme, ong>andong> act as a memory jogger for what can ong>andong> cannot be put into the various containers. (Success stories on composting ong>andong> separate collection, 2000

181<br />

Picture 51.: Resident with green kitchen <strong>waste</strong> bin <str<strong>on</strong>g>and</str<strong>on</strong>g> brown garden <strong>waste</strong> sacks<br />

(Success stories <strong>on</strong> composting <str<strong>on</strong>g>and</str<strong>on</strong>g> separate collecti<strong>on</strong>., 2000)<br />

Vehicles used for the scheme include a tractor <str<strong>on</strong>g>and</str<strong>on</strong>g> trailer which are used for<br />

the collecti<strong>on</strong> of the garden <strong>waste</strong>, <str<strong>on</strong>g>and</str<strong>on</strong>g> a van, which is used for the collecti<strong>on</strong> of<br />

the kitchen <str<strong>on</strong>g>and</str<strong>on</strong>g> recyclable <strong>waste</strong>s. All three <strong>waste</strong> streams (kitchen <strong>waste</strong>,<br />

garden <strong>waste</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> recyclable <strong>waste</strong>s) are collected <strong>on</strong> the same day of the week,<br />

although they are all collected separately<br />

The majority of residents participate in the scheme as the grey bin of mixed<br />

<strong>waste</strong> is collected <strong>on</strong>ly fortnightly <str<strong>on</strong>g>and</str<strong>on</strong>g> this provides an incentive to segregate<br />

compostable <str<strong>on</strong>g>and</str<strong>on</strong>g> recyclable <strong>waste</strong>s. Using a figure of <strong>on</strong>e t<strong>on</strong>e per year as the<br />

average quantity of <strong>waste</strong> produced per <strong>household</strong>, Wyecycle claims to have<br />

reduced the amount of <strong>waste</strong> being sent for l<str<strong>on</strong>g>and</str<strong>on</strong>g>fill by 78 % as the average<br />

quantity of <strong>waste</strong> now being sent for l<str<strong>on</strong>g>and</str<strong>on</strong>g>fill per <strong>household</strong> is 220 kg. Of the<br />

green <strong>waste</strong> collected, approximately a quarter by weight is kitchen <strong>waste</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

three quarters is garden <strong>waste</strong>.<br />

The scheme is currently running at a capacity of around 250 t<strong>on</strong>s per year. The<br />

quantities of kitchen <strong>waste</strong> arising are fairly c<strong>on</strong>sistent all year round, <str<strong>on</strong>g>and</str<strong>on</strong>g> so<br />

any variati<strong>on</strong>s in the quantities collected are due to a varying quantity of<br />

garden <strong>waste</strong>. The minimum quantity of <strong>waste</strong> collected during the last 12<br />

m<strong>on</strong>ths was in February when <strong>on</strong>ly two t<strong>on</strong>es of garden <strong>waste</strong> were collected<br />

(plus the four to five t<strong>on</strong>es of kitchen <strong>waste</strong>). The maximum quantity of <strong>waste</strong><br />

collected during the last 12 m<strong>on</strong>ths was in September, when 20 to 25 t<strong>on</strong>s of<br />

garden <strong>waste</strong> were collected (plus the kitchen <strong>waste</strong>).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!