4 ABSTRACT: Anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) 5 is promoted as an energy source and more recently as a GHG mitigation measure. In this context, AD 6 systems operating at thermophilic temperatures (55-60C) – compared to mesophilic temperatures 7 (35-40C) – have the unique feature of producing hygienic soil conditioners with greater process 8 effici...

PURPOSE Although previous research has associated the glycaemic load (GL) of a meal with cognitive functioning, typically the macro-nutrient composition of the meals has differed, raising a question as to whether the response was to GL or to the energy, nutrients or particular foods consumed. Therefore, the present study contrasted two breakfasts that offered identical levels of energy and macr...

Phosphorus is the second most essential macro nutrient after nitrogen required for crop growth (Lal, 2002). Various metabolic processes viz., energy transfer, signal transduction, macro-molecular biosynthesis, photosynthesis, respiration, etc. require P as the key ingredient (Shenoy and Kalagudi, 2005). Mostly soils contain only approximately 1 μmol l -1 soluble P, where as the P requirement by...

In UCT and Bardenpho systems, by starting with 100 per cent municipal waste water as influent, incrementally decreasing the waste-water fraction and increasing the acetate fraction, an enhanced culture of polyphosphate (polyP) organisms was developed. Aerobic cultures, using the API procedure, indicated greater than 90 per cent of the microorganisms as Acinetobacter spp. As the acetate fraction...

The response of bacterial communities to environmental change may affect local to global nutrient cycles. However the dynamics of these communities following disturbance are poorly understood, given that they are often evaluated over macro-ecological time scales and end-point measurements. In order to understand the successional trajectory of soil bacterial communities following disturbances an...