Appendix 4 - Noise & Odour Assessment

correspondence. As all odorous vapours are condensed back into a liquid, the likelihood of odour being
discharged as a result of this process is remote.

Yeast Dosing, Fermentation and Yeast Harvesting
Yeast is added to the cooled wort to start the fermentation cycle in the fermenters. During this process
the wort is converted into “green beer”, the yeast multiplies and carbon dioxide and alcohol is produced
as a by-product. At the end of the fermentation cycle, yeast is drawn off for subsequent brews and the
excess is collected for use as animal feed. The spent yeast and trub is added to the spent grain while hot
(+60oC). During this process, the yeast dies (as it is unable to survive temperatures greater than 50oC)
and the waste material is packaged for distribution to the agricultural sector. Carbon dioxide will be
monitored for safety of personnel and will be vented to the outside when necessary.

Maturation and Filtration
Green beer is allowed to mature in the tank before being filtered through a diatomaceous earth filter. On
completion of filtration, the spent diatomaceous earth is collected for disposal.

Beer Storage
Filtered beer is stored in tanks prior to packaging into bottles or kegs.

Packaging
Beer is packaged into 50 litre kegs or cartons of glass bottles on designated automated production lines.

Warehousing
Stocks of bottled beer cartons and kegs are stored on pallets in the rear of the facility awaiting road
transport to a distribution contractor.
Spent grain will be removed offsite on a daily basis removing all odours with the aim of no detectable
odours being detectible offsite. No spent grain will be stored for longer than 24 hours. The regular
removal of spent grain will prevent odours being generated during late night/early morning periods when
the potential for odour impacts are highest.


3.3         Plant capacity
The proposed plant operations will be 24 hours a day producing up to 10 million litres per annum.


4           Basis of assessment
As part of the material change of use application, Council is required to consider a number of planning
instruments in making a decision about the application. Of note is the State Planning Policy which forms
one of the higher order documents use to provide direction on the type of land use and associated
impacts anticipated for development with Queensland.

The Queensland State Planning Policy includes specific provisions in relation to emissions (air, noise,
etc) and hazardous activities to provide strategic direction about:

     where industrial land uses should be located to protect communities and individuals from the impacts
      of air, noise and odour emissions, and the impacts from hazardous materials



4130136/41-30136-LET_Raftsea                                                                                4