Ti Tree Bend digester maintenance works - December 2016

Major maintenance works will be undertaken at Launceston's Ti Tree Bend Sewage Treatment Plant (STP) before Christmas.

TasWater will be lifting the lid on one of the plant's two digesters to undertake proactive maintenance and to improve the plant's overall performance.

It is expected the work will help reduce odour emissions from the site.

The digesters, built in the early 1970s, are a key piece of infrastructure used to break down organic matter into gas and sludge.

A blockage in one of the digesters is having a significant impact on the overall operation of the plant and it is important for the maintenance works to be completed before the busy Christmas period.

The 70-tonne digester lid will be lifted off by crane between Thursday morning (8 December) and Saturday morning (10 December). The exact timing of the lift will be determined by weather conditions.

Contractors and TasWater crews will then be working around the clock to empty the digester and undertake any maintenance considered necessary before the lid is put back into place.

It is expected the work will take at least four days to complete.

A number of measures are being put in place to help minimise the risk of odours impacting on residents while the work is taking place.

TasWater is expecting there to be some odour when the lid of the digester is lifted but is confident that there are adequate measures in place to contain any odour to a localised area.

A similar project was undertaken at the Newnham Sewage Treatment Plant last year without a single complaint.

Residents can expect to see a significant increase in activity in and around Ti Tree Bend STP with crews working 24/7 to ensure the work is completed as quickly as possible.

The work is being carried out at a cost of approximately $400,000 with 90 per cent of the total spend going to local firms.

There has been a marked decrease in the number of odour complaints relating to sewage treatment plants across the state over the past 12 months.

TasWater has already introduced a number of measures to reduce odour omissions from the Ti Tree Bend site and is finalising plans for a significant upgrade to the plant to optimise the plant's performance and help address on-going odour problems.

Major maintenance works will be undertaken at Launceston's Ti Tree Bend Sewage Treatment Plant (STP) before Christmas.

TasWater will be lifting the lid on one of the plant's two digesters to undertake proactive maintenance and to improve the plant's overall performance.

It is expected the work will help reduce odour emissions from the site.

The digesters, built in the early 1970s, are a key piece of infrastructure used to break down organic matter into gas and sludge.

A blockage in one of the digesters is having a significant impact on the overall operation of the plant and it is important for the maintenance works to be completed before the busy Christmas period.

The 70-tonne digester lid will be lifted off by crane between Thursday morning (8 December) and Saturday morning (10 December). The exact timing of the lift will be determined by weather conditions.

Contractors and TasWater crews will then be working around the clock to empty the digester and undertake any maintenance considered necessary before the lid is put back into place.

It is expected the work will take at least four days to complete.

A number of measures are being put in place to help minimise the risk of odours impacting on residents while the work is taking place.

TasWater is expecting there to be some odour when the lid of the digester is lifted but is confident that there are adequate measures in place to contain any odour to a localised area.

A similar project was undertaken at the Newnham Sewage Treatment Plant last year without a single complaint.

Residents can expect to see a significant increase in activity in and around Ti Tree Bend STP with crews working 24/7 to ensure the work is completed as quickly as possible.

The work is being carried out at a cost of approximately $400,000 with 90 per cent of the total spend going to local firms.

There has been a marked decrease in the number of odour complaints relating to sewage treatment plants across the state over the past 12 months.

TasWater has already introduced a number of measures to reduce odour omissions from the Ti Tree Bend site and is finalising plans for a significant upgrade to the plant to optimise the plant's performance and help address on-going odour problems.