Odour control guide for South Australia
South Australia has a beautiful but sensitive natural environment. It is home to approximately 1.7 million people with the greatest population density being in the capital, Adelaide.
Manufacturing, construction, agricultural activities, electricity, gas and water and waste services are all active industries in South Australia making it important to monitor and regulate environmental impacts from these sources.
The Environmental Protection Authority (EPA) is the primary regulatory body responsible for the requirements of the Environmental Protection Act. It also carries referral responsibilities related to the Development Act. As such, the EPA has developed systems and procedures to govern the granting of permissions for new activities or expansions that may impact the environment. This includes the sensitive subject of odour control.
OdourPro is a trusted partner in odour control offering products and services to keep our clients compliant in South Australia. Find out more here.
Industries that cause odours
Some sources of odours are well known and cause problems everywhere in the world.
Waste water treatment, composting and landfills all fall into this category. Fortunately, the causes of these odours are well understood, and solutions are available to mitigate the impacts on neighbours.
Mining, solid waste management, as well as food and dairy processing are also vulnerable to producing odours. Carefully examining each application and potential odour sources within the process is an important part of odour control.
The importance of distance
Odours are complex effects that impact on people and communities in different ways. Some people are more sensitive than others and as urban density increases, the chances of more sensitive people living close to odour sources also rises.
Distances between industry and surrounding communities especially sensitive points in the community can play a large role in the experience of odours by the community.
The EPA has issued a guideline document for the assessment of proximity for a new development relative to the surrounding community. Factors like ambient pollution levels and wind direction play a role in assessing the location and the associated risks for odour complaints.
South Australia air quality requirements
South Australia works on a risk-based assessment of air quality impacts. The higher the risk of direct impact on the community, the more detailed the air quality analysis and preventive measures will need to be. The process centres around estimates of the Ground Level Concentrations (GLCs) of pollutants, which can be obtained through modelling, comparative benchmarks from similar processes elsewhere, or other agreed methods.
These GLCs must be kept below the specified limits when measured at sensitive locations, which includes residential areas and other sensitive environments.
In order to comply with the General Environmental Duty (GED) as prescribed by the Environmental Protection Act, companies must show that they are using “best available technology economically achievable” (BATEA). This shows that all reasonable and practical steps are being taken to minimise odour impacts at ground level.
OdourPro has been working in the Australian context for more than 25 years and offers a number of best available technology solutions.
OdourPro's solutions for odour control in South Australia
Municipal wastewater and some trade wastes contain organic material which breaks down in the presence of micro-organisms. As this decomposition occurs products like H2S are released which have strong odours. The best way to prevent the release of these odours is the use of chemical dosing systems. Chemical dosing interferes with the micro-organism process and prevents the formation of H2S.
In some cases, odour sources can be isolated, and the gases processed through filters before being released to atmosphere. For example, municipal wastewater, food and dairy processing and abattoirs and tanneries are industries that use filters.
- Biofilters use micro-organism activity to remove pollutants from the gas stream
- Meanwhile, active carbon filters trap pollutants in the filter bed.
- A combination of both can also be used to maximise recovery of harmful substances and prevent odour complaints.
Where facilities are spread over a large area like landfill sites, it may not be possible to isolate every source of odour. Perimeter treatment methods can be very effective in these circumstances to treat the odour in the air as it crosses the boundary fence.
Contact OdourPro for odour control in South Australia
OdourPro is a trusted partner for controlling odour and maintaining compliance with the South Australia EPA. Our technical experts provide a range of consulting services and advice to implement the most effective solution for your needs.
OdourPro on 21 November 2016
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