Why the clients should hire the license owned inspector?

It’s encouraging that a large employer such as ADL is not only concerned about the effect its business has on the environment, but willing to go that extra mile to ensure that its employees are also aware that they can minimise their individual impact on the environment by making small changes within their homes. Here, Eric Hayward, a consultant within the Environmental Services group of SAC, describes how constructed wetlands help with effluent disposal in rural areas. In the past, BPI Brisbane domestic effluent treatment and disposal in rural areas has been limited to using either septic tanks with soakaways, or directly discharging to a watercourse or into field drains.

The first method is the simplest, but unfortunately more than half of the soils in Scotland are not suitable for this treatment and, in these areas the effluent must be treated to a standard acceptable by SEPA before discharge is allowed. Since 1985, effluent treatment using constructed wetlands has become popular in areas without sewerage. This is now considered as a standard form of treatment and, to date, SAC environmental services consultants have designed over 100 wetland treatment systems across Scotland. By combining ponds with constructed reedbeds it is possible to treat effluents from rural industries, such as vegetable processing plants.

Restaurants, cafés, hotels, visitor centres and farm shops can benefit from the low running costs of a constructed reedbed treatment system and their ability to handle large variations in effluent volume. When effectively designed, constructed wetlands are simple treatment systems that are relatively easy to build. In the long term, constructed wetlands are very economical as the system virtually runs itself and will also provide new wildlife habitats.

After choosing to use a constructed reedbed, it is important to consult SEPA, who will advise on the required level of treatment needed before permission to discharge into a watercourse is granted. Also, the quantity of effluent that will flow through the constructed reedbed must be estimated. For domestic rural developments, the daily flow rate is based upon the maximum population that could live in the propert. With caravan and camping sites, estimating the maximum seasonal population becomes more difficult.

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