Odour and dust controls enhanced at large waste processing plant through carbon adsorption and filtration system.

Waste reception and recycling plants can reduce airborne odours and dust, including pollutants linked to processing non-recyclable materials into solid recovered fuel (SRF), with engineered solutions from Simdean Group Ltd, part of Operational Group.

We understand the environmental, legislative and energy-efficiency challenges faced by waste plants, including controlling the impact of emissions on residential areas.

We’ve helped many plant operators to minimise their impact and optimise their equipment and systems, leading to significant benefits including better environmental controls, increased capacity and energy efficiencies.

One example is a large waste recycling centre in Ireland where Simdean designed, delivered, installed and commissioned a new carbon adsorption and dust filtration plant. The waste plant operates 24 hours per day and dust and odours have to be controlled to prevent nuisance and pollution to residential areas nearby.

The site has expanded with a storage and processing section for solid recovered fuel. This fuel is produced from non-recyclable inert municipal waste such as compromised paper, card, wood, plastics and textiles. This residual, non-recyclable waste is processed and then combusted to create energy, which is currently the best environmental option for such waste.

Materials are processed through shredders, screens, air classifiers, density separators and magnets. Fine dust, odours and humidity arising from this have to be controlled.

Simdean was commissioned to survey the plant and designed an appropriate system to solve the odour problem.  In this case, the best solution was to install the new carbon adsorber in line two existing adsorber.

Our improvements included increasing the capacity of the existing fan system, replaced an old fan unit with two new efficient units, adding an extra carbon adsorber to run alongside two existing adsorbers, and other optimisation work to equipment and systems.

Simdean’s new system includes corrosion-resistant GRP ductwork and automatically-controlled dampers. Other features include odour-monitoring and carbon-testing facilities, allowing operatives to maintain and replace activated carbon at the most cost-effective times. Unloading and reloading can easily be achieved, minimising shutdown time.

After trials and a running-in period, the customer was extremely pleased. All odours and dust are effectively contained and treated efficiently at the extended solid recovered fuel operation. All Simdean systems are designed for flexibility of operation.

Read the full technical case study.