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UNIT 4: ENVIRONMENT MANAGEMENT SYSTEMS<br />

107<br />

How can the Separation of Waste be Easily Incorporated into<br />

Hospitality Operations?<br />

• Place separate waste containers in rooms and invite guests to use the<br />

containers as labelled;<br />

• Ask guests to sort out waste such as batteries for separate collection<br />

and disposal;<br />

• Install housekeeping carts with separate waste containers;<br />

• Place separate waste containers in kitchens, other F&B outlets,<br />

housekeeping and administration areas;<br />

• Place bulk containers for separate waste in an appropriate back<br />

office area;<br />

• Train employees in all departments to separate waste.<br />

In the case of hazardous waste such as solvents, pool chemicals, paints, chemical<br />

pesticides and other such products, the local authority’s disposal stipulations<br />

should be followed. Hygiene and food safety codes provide guidance for food and<br />

packaging waste disposal, which will facilitate waste management.<br />

S<br />

E<br />

C<br />

T<br />

I<br />

O<br />

N<br />

2<br />

Some Facts About Composting<br />

Composting is the use of micro-organisms to break down organic waste<br />

(vegetable clippings, leaves, seeds, skins, shells, rinds, garden waste, etc)<br />

into inorganic form, which can then be used to improve the nutrient and water<br />

retention capacity of soil.<br />

Composting techniques range from simple backyard heaps to in-vessel<br />

systems.<br />

As composting waste is wet, backyard heaps need to be layered with dry bulking<br />

materials such as wood, sawdust, hay, leaves or shredded paper. Commercial<br />

compost activators can also be used. A small amount of nitrogen fertiliser can<br />

be added to increase energy content and speed up decomposition. Compost<br />

heaps need to be kept moist and thoroughly mixed to ensure waste breaks<br />

down rapidly. An unturned pile will become anaerobic (lack oxygen) and smell.<br />

In-vessel systems allow waste to be composted in enclosed vessels, reducing<br />

composting time to less than 30 days. As the composting takes place in<br />

enclosed vessels, they can be installed indoors (in kitchens and corridors, for<br />

example) or outside without the problems of smell, space or leakage. These<br />

systems have loading and screening devices, computerised or mechanical<br />

aeration systems, and mixers to turn the piles.<br />

Most composting systems recommend that only 15% of the waste heap consist<br />

of meat; in-vessel systems have partly overcome this disadvantage.<br />

Good Practice Tip<br />

Adding too much bulking material can create a low-energy compost mixture,<br />

which takes a long time to break down.

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