Duncan Mara

TL;DR: In this article, the minimum evaluation of the performance of existing full-scale waste stabilization ponds is presented for a 5-week period at the hottest and coldest periods of the year and analyzed for BOD, COD, SS, NH3N, NO3N and total P; faecal coliform numbers are determined on grab samples, and algal biomass estimated by measuring chlorophyll concentrations in samples of the pond water column.

TL;DR: In this paper, a new paradigm is proposed for low-cost urban water supply and sanitation, as follows: water supply provision and sanitation provision in urban areas and large villages should be to groups of households, not to individual households.

TL;DR: Gross mixing distortions and localised stagnant zones, short-circuiting and bypass flows were found in the sludge bed and blanket zones for both extreme conditions (underloading and overloading).

TL;DR: Waste stabilization ponds are widely used in many European countries, such as France and Germany, for the treatment of wastewater from mainly small communities, and there would seem to be no reason why they should not also be a suitable treatment process for populations of under 2000 in the UK as mentioned in this paper.

TL;DR: In this paper, the penetration of light into waste stabilization ponds was studied because of its importance in pathogen removal and algal productivity, and the attenuation coefficients in the u.v. suggest that these wavelengths are less penetrating than previously reported.