Backyard Sewage Treatment Plant

Here we have a backyard Sewage Treatment Plant (STP), which Blackstorm Engineers installed in December 2018.

This standard plant will provide full treatment for BOD, Suspended Solids, Ammonia and Total Nitrogen. While also utilising a high rate reflux return activated sludge system for nitrification and denitrification. For Phosphorus dosing, we would include a dedicated chamber connected to the treatment system, dosing either ferric chloride or poly-aluminium tri-silicate to settle out the suspended solids reducing the orthophosphates to achieve the phosphorus discharge limit.

We conduct annual maintenance to ensure satisfactory function of the plant, 6-8 monthly mechanical, electrical, and grease cartridges checks. If operating at full load we conduct 2,000 litres of sludge removal every 14-18 months.

For this backyard sewage treatment plan we estimate sludge removal every 15 months. These checks also include alarms for RBC rotation loss, sludge return pump failure, and loss of power. We will have the alarm beacon on top of the panel. If SMS is required, this could be easily added. All maintenance is performed by locally trained operators who were trained during initial installation.

Noise barriers – Noise walls

For the past five years Blackstorm Engineers has been involved in a number of noise barriers and noise walls. Our team has been involved in Noise Barriers projects including:
• Townsville Ring Road – Deeragum, Townsville Qld
• Gateway arterial – Rochedale Qld
• Hale Street- Inner City Bypass – Paddington Road Qld

An acoustic panel barrier otherwise known as a noise barrier is mainly used for noise reduction of highways, busy arterial roads, elevated composite roads and other noise sources. There are pure sound isolation reflecting sound barriers, and composite sound barriers combined with sound absorption and sound insulation. The latter is a more effective method of sound insulation as it functions as a wall structure designed to mitigate the effects of traffic noise on nearby residents. A facility is inserted between the source of sound and the receiver to make a significant additional attenuation of sound propagation, thereby weakening the noise in a certain region of the receiver.

We are prequalified for Design and Construction by the Department of Transport and Main Roads. Our sound engineers have capability of research and measure the audio decibel (dB) allowable for residential applications.

Let us know how we could help you on your next project.