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Angola Environment - current issues: overuse of pastures and subsequent soil erosion attributable to population pressures; desertification; deforestation of tropical rain forest, in response to both international demand for tropical timber and to domestic use as fuel, resulting in loss of biodiversity; soil erosion contributing to water pollution and siltation of rivers and dams; inadequate supplies of potable water.

Installations for populations up to 600 normally take the form of package units with integral final clarifiers. Modular units with separate final settlement tanks cover a population range from 500 to 5000. Bioclere Aerated Biofilter Sewage Treatment Plant Fully enclosed design Can be fully or panially buried Small "Footprint" for space economy Low maintenance No nuisance from smell CONSTRUCTION Naston Bioclere Aerated Biofilter units can be supplied in a variety of 1 sizes to meet the requirements of the population served and the effluent standards relating to each site. The tanks are normally of GRP construction but can also be fabricated from mild steel with appropriate protective coating for special applications. The tanks are normally buried or partially buried in the ground and backfilled with concrete. They can also be designed for above ground use if required.

Project management and design are carried out at Brooklands by teams of experienced engineers for projects overseas and in the UK. In addition to the company's principle involvement in large scale water and wastewater treatment schemes, Naston also supply as range of skid or container mounted package plant and modular design plant, typically for use in potable water supply.

You can find out more about the Naston Ltd profile as well as the products and services available by following the links below.