Short Rotation Plantation System (SRP)
Willow and Bamboos.
Using wastewater for energy production gives a good opportunity to recycle resources and to solve complex environmental problems. This approach is the main task of ecological engineering, which deals with sustainable technologies. Energy forests have been pointed out as one of the most suitable ecological solutions for wastewater treatment. Energy forests have been pointed out as one of the most suitable ecological solutions for wastewater treatment having a low degree of treatment intensity and a high degree of recycling. During PAVITR a Short Rotation Plantation (SRP-System) will be designed to treat domestic wastewater with diverse Indian Native and EU-Exported species of Willows and Bamboos.
Willow bed evapotranspiration systems can treat on-site wastewater effluent with the advantage that, if sized correctly, they produce no discharge either to ground or to surface water. Willow beds are a viable alternative to conventional treatment methods, when for example, in situ soil is of too low a permeability to allow for treatment / disposal via percolation or when a discharge of treated/untreated effluent to a watercourse is not permitted. Diverse willow bed systems will be constructed as pilot trials at AMU University in Aligarh to treat the domestic wastewater produced. The systems will be built with the idea of evaluating different parameters with respect to overall performance including effluent type, willow varieties and aspect ratios of the basins. The effluent flow into the basins, water level, rainfall and evapotranspiration will be monitored on each site to assess the effectiveness of the system. The overall aim is to produce guidelines for the design of such on-site treatment systems in India.
The SRP system is planned to produce marketable products and also to study them as input material for energy production in a gasification process. Biomass gasification is a thermo-chemical conversion of biomass into a combustible gas mixture. Gasifier system consist on a reactor, followed by cooling and a cleaning train. The clean combustible gas is available for power generation using a generator unit.