Odours are a thing of the past

Odours Are now a thing of the past. Due to odour control .

The ramp-up will be gradual in order to verify that the air containment and odour management systems are functioning properly, but she expects the facility will return to full-scale operations by April.


Not long after opening the new composting facility last year,  it was shut down after neighbours in the area complained of foul odours coming from the plant.

Anotec reviewed the air containment and odour management systems, and with input from a residence, devised an action plan to resolve the odour issues.



Most recently, odour control systems were to be installed on the acid waste tank in the air containment system. And rather than using automated sensors, now staff will use hand-held absorption tubes several times a day to measure odour levels. As well, a modified scrubber/humidifier will operate using pH levels rather than ammonia levels.

Anotec will also design and install a permanent connection between the blower room and the odour management system, which should prevent any odours from escaping.

The plant began operations in early 2007 on the site where a previous  composting plant had operated. That plant was the subject of several odour complaints until it was closed in the spring of 2006.

The new facility cost about $39 million to build.

Anotec

Anotec was appointed to design, manufacture, install and commission remediation equipment for the remediation of a former gas work site.

The remediation equipment comprised the following main components:

·Water treatment system for dewatering of excavations . Engineered odour control canopy to allow excavation of odoriferous contaminated soils from a tar pit.
Closed loop pump and treat system for odorous aqueous liquids from dewatering and tar tanks.
Actively aerated biopile system for ex-situ remediation of soil.

Anotec manufactured the various remediation systems in-house and modified existing equipment to suit site requirements. Mobilisation to site was achieved within 1 week of instruction and the dewatering, water treatment system and closed loop pump and treat system were fully operational within 20 working days.

All diffuse odour emissions from the water treatment system were captured and treated in a dedicated air filtration system, to avoid escape of odours to nearby housing estate. All vacuum pumps extraction blowers/fans were housed within acoustically enclosed containers to minimise the risk of noise impact to nearby residents.

Upon commencement of excavation works, actively aerated biopile systems were set up together with ancillaries and extraction pipework. The biopiles were designed to allow flexible operation to accommodate a staged soil excavation programme, thus facilitating rapid turn-around of treated soils for backfill operations.
Air emissions and liquid effluents were treated using a Granular Activated Carbon  filtration system prior to discharge. The  Granular Activated Carbon  filters were sized and designed to allow prolonged treatment with the minimum number of changes of media in order to minimise impact on site operations.

Anotec's engineers undertook regular operational system checks and  visits to ensure continued operation of remediation equipment.